diff --git a/CHANGELOG_PEZKUWI.md b/CHANGELOG_PEZKUWI.md
new file mode 100644
index 0000000..4eff75a
--- /dev/null
+++ b/CHANGELOG_PEZKUWI.md
@@ -0,0 +1,282 @@
+# PezWallet Android - Pezkuwi Uyumluluk Değişiklikleri
+
+Bu dosya, Pezkuwi chain uyumluluğu için yapılan tüm değişiklikleri takip eder.
+Context sıfırlanması durumunda referans olarak kullanılmalıdır.
+
+---
+
+## DEBUG KODLARI (Production öncesi KALDIRILMALI)
+
+### 1. FeeLoaderV2Provider.kt - Hata mesajı gösterimi
+**Dosya:** `feature-wallet-api/src/main/java/io/novafoundation/nova/feature_wallet_api/presentation/mixin/fee/v2/FeeLoaderV2Provider.kt`
+**Değişiklik:**
+```kotlin
+// ÖNCE:
+message = resourceManager.getString(R.string.choose_amount_error_fee),
+
+// SONRA (DEBUG):
+message = "DEBUG: $errorMsg | Runtime: $diagnostics",
+```
+**Temizleme:**
+- `"DEBUG: $errorMsg | Runtime: $diagnostics"` → `resourceManager.getString(R.string.choose_amount_error_fee)` olarak geri al
+- `val diagnostics = try { ... }` bloğunu kaldır
+
+---
+
+### 2. RuntimeFactory.kt - Diagnostic değişken ve log'lar
+**Dosya:** `runtime/src/main/java/io/novafoundation/nova/runtime/multiNetwork/runtime/RuntimeFactory.kt`
+**Eklenenler:**
+```kotlin
+// Companion object içinde:
+companion object {
+    @Volatile
+    var lastDiagnostics: String = "not yet initialized"
+}
+
+// constructRuntimeInternal içinde:
+lastDiagnostics = "typesUsage=$typesUsage, ExtrinsicSig=$hasExtrinsicSignature, MultiSig=$hasMultiSignature, typeCount=${types.size}"
+
+// Log satırları:
+Log.d("RuntimeFactory", "DEBUG: TypesUsage for chain $chainId = $typesUsage")
+Log.d("RuntimeFactory", "DEBUG: Loading BASE types for $chainId")
+Log.d("RuntimeFactory", "DEBUG: BASE types loaded, hash=$baseHash, typeCount=${types.size}")
+Log.d("RuntimeFactory", "DEBUG: Chain $chainId - ExtrinsicSignature=$hasExtrinsicSignature, MultiSignature=$hasMultiSignature, typesUsage=$typesUsage, typeCount=${types.size}")
+Log.d("RuntimeFactory", "DEBUG: BaseTypes loaded, length=${baseTypesRaw.length}, contains ExtrinsicSignature=${baseTypesRaw.contains("ExtrinsicSignature")}")
+Log.e("RuntimeFactory", "DEBUG: BaseTypes NOT in cache!")
+```
+**Temizleme:**
+- `companion object { ... }` bloğunu kaldır
+- `lastDiagnostics = ...` satırını kaldır
+- Tüm `Log.d/Log.e("RuntimeFactory", "DEBUG: ...")` satırlarını kaldır
+
+---
+
+### 3. CustomTransactionExtensions.kt - Log satırları
+**Dosya:** `runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/CustomTransactionExtensions.kt`
+**Temizlenecek:** Tüm `Log.d(TAG, ...)` satırları ve `private const val TAG` tanımı
+
+---
+
+### 4. ExtrinsicBuilderFactory.kt - Log satırları
+**Dosya:** `runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/ExtrinsicBuilderFactory.kt`
+**Temizlenecek:** Tüm `Log.d(TAG, ...)` satırları ve `private const val TAG` tanımı
+
+---
+
+### 5. PezkuwiAddressConstructor.kt - Log satırları
+**Dosya:** `common/src/main/java/io/novafoundation/nova/common/utils/PezkuwiAddressConstructor.kt`
+**Temizlenecek:** Tüm `Log.d(TAG, ...)` satırları ve `private const val TAG` tanımı
+
+---
+
+## FEATURE DEĞİŞİKLİKLERİ (Kalıcı)
+
+### 1. PezkuwiAddressConstructor.kt - YENİ DOSYA
+**Dosya:** `common/src/main/java/io/novafoundation/nova/common/utils/PezkuwiAddressConstructor.kt`
+**Açıklama:** Pezkuwi chain'leri için özel address constructor. SDK'nın AddressInstanceConstructor'ı "Address" type'ını ararken, Pezkuwi "pezsp_runtime::multiaddress::MultiAddress" kullanıyor.
+
+---
+
+### 2. RuntimeSnapshotExt.kt - Address type lookup
+**Dosya:** `runtime/src/main/java/io/novafoundation/nova/runtime/util/RuntimeSnapshotExt.kt`
+**Değişiklik:** Birden fazla address type ismi deneniyor:
+```kotlin
+val addressType = typeRegistry["Address"]
+    ?: typeRegistry["MultiAddress"]
+    ?: typeRegistry["sp_runtime::multiaddress::MultiAddress"]
+    ?: typeRegistry["pezsp_runtime::multiaddress::MultiAddress"]
+    ?: return false
+```
+
+---
+
+### 3. Signed Extension Dosyaları - YENİ DOSYALAR
+**Dosyalar:**
+- `runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/AuthorizeCall.kt`
+- `runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/CheckNonZeroSender.kt`
+- `runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/CheckWeight.kt`
+- `runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/WeightReclaim.kt`
+- `runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/PezkuwiCheckMortality.kt`
+
+**Açıklama:** Pezkuwi chain'leri için özel signed extension'lar
+
+---
+
+### 3.1. PezkuwiCheckMortality.kt - YENİ DOSYA
+**Dosya:** `runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/PezkuwiCheckMortality.kt`
+**Açıklama:** SDK'nın CheckMortality'si metadata type lookup yaparak encode ediyor ve Pezkuwi'de bu başarısız oluyordu ("failed to encode extension CheckMortality" hatası). Bu custom extension, Era ve blockHash'i doğrudan encode ediyor.
+**Neden gerekli:** SDK CheckMortality, Era type'ını metadata'dan arıyor. Pezkuwi metadata'sında Era type'ı `pezsp_runtime.generic.era.Era` DictEnum olarak tanımlı ve SDK bunu handle edemiyor.
+
+**Kod:**
+```kotlin
+class PezkuwiCheckMortality(
+    era: Era.Mortal,
+    blockHash: ByteArray
+) : FixedValueTransactionExtension(
+    name = "CheckMortality",
+    implicit = blockHash,  // blockHash goes into signer payload
+    explicit = createEraEntry(era)  // Era as DictEnum.Entry
+)
+```
+
+---
+
+### 4. CustomTransactionExtensions.kt - Pezkuwi extension logic
+**Dosya:** `runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/CustomTransactionExtensions.kt`
+**Değişiklik:** `isPezkuwiChain()` fonksiyonu eklendi, Pezkuwi için farklı extension'lar kullanılıyor
+
+---
+
+### 5. Address encoding yaklaşımı değişikliği
+**Eski yaklaşım:** `AddressInstanceConstructor` veya `PezkuwiAddressConstructor` ile type ismine göre tahmin
+**Yeni yaklaşım:** `argumentType("dest").constructAccountLookupInstance(accountId)` ile metadata'dan gerçek type alınıyor
+
+**Güncellenen dosyalar:**
+1. `feature-wallet-api/.../ExtrinsicBuilderExt.kt` - **YENİ YAKLAŞIM**: metadata'dan type alıyor
+2. `feature-governance-impl/.../ExtrinsicBuilderExt.kt` - Zaten doğru yaklaşımı kullanıyordu
+3. Diğer dosyalar hala PezkuwiAddressConstructor kullanıyor (gerekirse güncellenecek):
+   - `feature-staking-impl/.../ExtrinsicBuilderExt.kt`
+   - `feature-staking-impl/.../NominationPoolsCalls.kt`
+   - `feature-proxy-api/.../ExtrinsicBuilderExt.kt`
+   - `feature-wallet-impl/.../StatemineAssetTransfers.kt`
+   - `feature-wallet-impl/.../OrmlAssetTransfers.kt`
+   - `feature-wallet-impl/.../NativeAssetIssuer.kt`
+   - `feature-wallet-impl/.../OrmlAssetIssuer.kt`
+   - `feature-wallet-impl/.../StatemineAssetIssuer.kt`
+   - `feature-account-impl/.../ProxiedSigner.kt`
+
+---
+
+### 6. chains.json - feeViaRuntimeCall ve types
+**Dosya:** `pezkuwi-config/chains.json`
+**Değişiklik:**
+- Pezkuwi chain'lerine `"feeViaRuntimeCall": true` eklendi
+- `"types": { "overridesCommon": false }` eklendi (base types yüklenmesi için - ExtrinsicSignature type hatası düzeltmek için)
+**Etkilenen chain'ler:**
+- Pezkuwi Mainnet (bb4a61ab0c4b8c12f5eab71d0c86c482e03a275ecdafee678dea712474d33d75)
+- Pezkuwi Asset Hub (00d0e1d0581c3cd5c5768652d52f4520184018b44f56a2ae1e0dc9d65c00c948)
+- Pezkuwi People Chain (58269e9c184f721e0309332d90cafc410df1519a5dc27a5fd9b3bf5fd2d129f8)
+- Zagros Testnet (96eb58af1bb7288115b5e4ff1590422533e749293f231974536dc6672417d06f)
+
+---
+
+### 7. pezkuwi.json - Chain-specific types (ASSETS)
+**Dosya:** `runtime/src/main/assets/types/pezkuwi.json`
+**Açıklama:** Pezkuwi chain'leri için özel type tanımları
+```json
+{
+  "types": {
+    "ExtrinsicSignature": "MultiSignature",
+    "Address": "pezsp_runtime::multiaddress::MultiAddress",
+    "LookupSource": "pezsp_runtime::multiaddress::MultiAddress"
+  },
+  "typesAlias": {
+    "pezsp_runtime::multiaddress::MultiAddress": "MultiAddress",
+    "pezsp_runtime::MultiSignature": "MultiSignature",
+    "pezsp_runtime.generic.era.Era": "Era"
+  }
+}
+```
+**NOT:** Bu dosya şu anda kullanılmıyor çünkü TypesUsage.BASE kullanılıyor. TypesUsage.BOTH veya OWN için chains.json'da URL eklenebilir.
+
+---
+
+## SORUN GEÇMİŞİ
+
+1. **"Network not responding"** - Fee hesaplama hatası
+   - Çözüm: feeViaRuntimeCall eklendi, custom signed extension'lar eklendi
+
+2. **"IllegalStateException: Type Address was not found"** - Address type lookup hatası
+   - Çözüm: RuntimeSnapshotExt.kt'de birden fazla type ismi deneniyor
+
+3. **"EncodeDecodeException: is not a valid instance"** - Address encoding hatası
+   - Çözüm: `argumentType("dest").constructAccountLookupInstance(accountId)` ile metadata'dan gerçek type alınıyor (ExtrinsicBuilderExt.kt)
+
+4. **"failed to encode extension CheckMortality"** - CheckMortality encoding hatası
+   - SDK'nın CheckMortality'si metadata type lookup yaparak Era'yı encode etmeye çalışıyor
+   - Pezkuwi Era type'ı `pezsp_runtime.generic.era.Era` DictEnum olarak tanımlı
+   - Çözüm: `PezkuwiCheckMortality` custom extension'ı oluşturuldu, Era'yı `DictEnum.Entry("MortalX", secondByte)` olarak veriyor
+
+5. **"IllegalStateException: Type ExtrinsicSignature was not found"** - ExtrinsicSignature type hatası (DEVAM EDİYOR)
+   - SDK "ExtrinsicSignature" type'ını arıyor ama Pezkuwi chain'leri `"types": null` kullanıyordu
+   - `TypesUsage.NONE` olduğu için base types (default.json) yüklenmiyordu
+   - Denenen çözüm: chains.json'da `"types": { "overridesCommon": false }` eklendi → `TypesUsage.BASE` kullanılıyor
+   - Base types URL: `https://raw.githubusercontent.com/pezkuwichain/pezkuwi-wallet-utils/master/chains/types/default.json`
+   - default.json'da `"ExtrinsicSignature": "MultiSignature"` tanımlı
+   - Cache temizlenip uninstall/reinstall yapıldı ama hata devam ediyor
+   - Debug diagnostics eklendi - test sonucunu bekliyoruz
+
+---
+
+## ÇALIŞAN İMPLEMENTASYONLAR (Referans)
+
+### 1. pezkuwi-extension (Browser Extension)
+**Konum:** `/home/mamostehp/pezkuwi-extension/`
+**Nasıl çalışıyor:**
+- `@pezkuwi/types` (polkadot.js fork) kullanıyor
+- `TypeRegistry` ile dynamic type handling
+- Custom user extensions:
+```javascript
+const PEZKUWI_USER_EXTENSIONS = {
+  AuthorizeCall: {
+    extrinsic: {},
+    payload: {}
+  }
+};
+```
+- `registry.setSignedExtensions(payload.signedExtensions, PEZKUWI_USER_EXTENSIONS)` ile extension'lar ekleniyor
+- Metadata'dan registry oluşturuluyor: `metadataExpand(metadata, false)`
+
+### 2. pezkuwi-subxt (Rust)
+**Konum:** `/home/mamostehp/pezkuwi-sdk/vendor/pezkuwi-subxt/`
+**Nasıl çalışıyor:**
+- Rust'ta compile-time type generation
+- Metadata'dan otomatik type oluşturma
+
+### 3. Telegram Miniapp
+- Web tabanlı, polkadot.js kullanıyor
+- `"types": null` ile çalışıyor çünkü metadata v14+ self-contained
+
+---
+
+## TEMİZLEME KONTROL LİSTESİ
+
+Production release öncesi yapılacaklar:
+
+- [ ] FeeLoaderV2Provider.kt - DEBUG mesajını ve diagnostics'i kaldır
+- [ ] RuntimeFactory.kt - companion object ve debug log'ları kaldır
+- [ ] CustomTransactionExtensions.kt - Log satırlarını kaldır
+- [ ] ExtrinsicBuilderFactory.kt - Log satırlarını kaldır
+- [ ] PezkuwiAddressConstructor.kt - Log satırlarını kaldır (varsa)
+- [ ] Test et: Transfer işlemi çalışıyor mu?
+- [ ] Test et: Fee hesaplama çalışıyor mu?
+
+---
+
+## TYPE LOADING AKIŞI (Referans)
+
+```
+chains.json
+    ↓
+"types": { "overridesCommon": false }  →  TypesUsage.BASE
+"types": { "url": "...", "overridesCommon": false }  →  TypesUsage.BOTH
+"types": { "url": "...", "overridesCommon": true }  →  TypesUsage.OWN
+"types": null  →  TypesUsage.NONE
+    ↓
+RuntimeFactory.constructRuntime()
+    ↓
+TypesUsage.BASE → constructBaseTypes() → fetch from DEFAULT_TYPES_URL
+TypesUsage.BOTH → constructBaseTypes() + constructOwnTypes()
+TypesUsage.OWN → constructOwnTypes() only
+TypesUsage.NONE → use v14Preset() only
+    ↓
+TypeRegistry
+    ↓
+RuntimeSnapshot
+```
+
+**DEFAULT_TYPES_URL:** `https://raw.githubusercontent.com/pezkuwichain/pezkuwi-wallet-utils/master/chains/types/default.json`
+
+---
+
+*Son güncelleme: 2026-02-03 (Debug diagnostics eklendi, extension analizi yapıldı)*
diff --git a/common/src/main/java/io/novafoundation/nova/common/utils/PezkuwiAddressConstructor.kt b/common/src/main/java/io/novafoundation/nova/common/utils/PezkuwiAddressConstructor.kt
new file mode 100644
index 0000000..c28ee35
--- /dev/null
+++ b/common/src/main/java/io/novafoundation/nova/common/utils/PezkuwiAddressConstructor.kt
@@ -0,0 +1,72 @@
+package io.novafoundation.nova.common.utils
+
+import android.util.Log
+import io.novasama.substrate_sdk_android.runtime.AccountId
+import io.novasama.substrate_sdk_android.runtime.definitions.registry.TypeRegistry
+import io.novasama.substrate_sdk_android.runtime.definitions.types.composite.DictEnum
+import io.novasama.substrate_sdk_android.runtime.definitions.types.generics.MULTI_ADDRESS_ID
+import io.novasama.substrate_sdk_android.runtime.definitions.types.primitives.FixedByteArray
+import io.novasama.substrate_sdk_android.runtime.definitions.types.skipAliases
+
+private const val TAG = "PezkuwiAddressConstructor"
+
+/**
+ * Custom address constructor that handles Pezkuwi chains which use different type names.
+ * Pezkuwi uses "pezsp_runtime::multiaddress::MultiAddress" instead of standard "Address".
+ */
+object PezkuwiAddressConstructor {
+
+    private val ADDRESS_TYPE_NAMES = listOf(
+        "Address",
+        "MultiAddress",
+        "sp_runtime::multiaddress::MultiAddress",
+        "pezsp_runtime::multiaddress::MultiAddress"
+    )
+
+    /**
+     * Constructs an address instance compatible with both standard Substrate and Pezkuwi chains.
+     * Checks the actual type structure to determine the correct encoding format.
+     */
+    fun constructInstance(typeRegistry: TypeRegistry, accountId: AccountId): Any {
+        // Try to find the address type
+        var foundTypeName: String? = null
+        val addressType = ADDRESS_TYPE_NAMES.firstNotNullOfOrNull { name ->
+            typeRegistry[name]?.also { foundTypeName = name }
+        }
+
+        Log.d(TAG, "Found address type: $foundTypeName, type class: ${addressType?.javaClass?.simpleName}")
+
+        // If no address type found, return the raw accountId (for chains with simple AccountId)
+        if (addressType == null) {
+            Log.d(TAG, "No address type found, returning raw accountId")
+            return accountId
+        }
+
+        val resolvedType = addressType.skipAliases()
+        Log.d(TAG, "Resolved type after skipAliases: ${resolvedType?.javaClass?.simpleName}, name: ${resolvedType?.name}")
+
+        // Check the actual type structure
+        return when (resolvedType) {
+            is DictEnum -> {
+                Log.d(TAG, "Type is DictEnum with variants: ${resolvedType.elements.keys}")
+                // MultiAddress type - wrap in Id variant
+                DictEnum.Entry(MULTI_ADDRESS_ID, accountId)
+            }
+            is FixedByteArray -> {
+                Log.d(TAG, "Type is FixedByteArray with length: ${resolvedType.length}, returning raw accountId")
+                // GenericAccountId or similar - return raw
+                accountId
+            }
+            null -> {
+                Log.d(TAG, "Resolved type is null, returning raw accountId for Pezkuwi")
+                // For Pezkuwi, if alias doesn't resolve, try raw accountId
+                accountId
+            }
+            else -> {
+                Log.d(TAG, "Unknown type: ${resolvedType.javaClass.simpleName}, returning raw accountId")
+                // Unknown type, try raw accountId instead of DictEnum
+                accountId
+            }
+        }
+    }
+}
diff --git a/docs/ic_pezkuwi_launcher.png b/docs/ic_pezkuwi_launcher.png
new file mode 100644
index 0000000..cada654
Binary files /dev/null and b/docs/ic_pezkuwi_launcher.png differ
diff --git a/feature-account-impl/src/main/java/io/novafoundation/nova/feature_account_impl/data/fee/FeePaymentProviderRegistry.kt b/feature-account-impl/src/main/java/io/novafoundation/nova/feature_account_impl/data/fee/FeePaymentProviderRegistry.kt
index 19987b8..d2fda65 100644
--- a/feature-account-impl/src/main/java/io/novafoundation/nova/feature_account_impl/data/fee/FeePaymentProviderRegistry.kt
+++ b/feature-account-impl/src/main/java/io/novafoundation/nova/feature_account_impl/data/fee/FeePaymentProviderRegistry.kt
@@ -20,7 +20,9 @@ internal class RealFeePaymentProviderRegistry(
         val chain = chainRegistry.getChain(chainId)
 
         return when (chainId) {
-            Chain.Geneses.POLKADOT_ASSET_HUB -> assetHubFactory.create(chain)
+            Chain.Geneses.PEZKUWI_ASSET_HUB,
+            Chain.Geneses.POLKADOT_ASSET_HUB,
+            Chain.Geneses.KUSAMA_ASSET_HUB -> assetHubFactory.create(chain)
             Chain.Geneses.HYDRA_DX -> hydrationFactory.create(chain)
             else -> DefaultFeePaymentProvider(chain)
         }
diff --git a/feature-account-impl/src/main/java/io/novafoundation/nova/feature_account_impl/data/signer/proxy/ProxiedSigner.kt b/feature-account-impl/src/main/java/io/novafoundation/nova/feature_account_impl/data/signer/proxy/ProxiedSigner.kt
index f62160f..7f5e791 100644
--- a/feature-account-impl/src/main/java/io/novafoundation/nova/feature_account_impl/data/signer/proxy/ProxiedSigner.kt
+++ b/feature-account-impl/src/main/java/io/novafoundation/nova/feature_account_impl/data/signer/proxy/ProxiedSigner.kt
@@ -30,7 +30,7 @@ import io.novafoundation.nova.runtime.multiNetwork.chain.model.Chain
 import io.novasama.substrate_sdk_android.runtime.AccountId
 import io.novasama.substrate_sdk_android.runtime.definitions.types.composite.DictEnum
 import io.novasama.substrate_sdk_android.runtime.definitions.types.generics.GenericCall
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
 import io.novasama.substrate_sdk_android.runtime.extrinsic.signer.SignedRaw
 import io.novasama.substrate_sdk_android.runtime.extrinsic.signer.SignerPayloadRaw
@@ -205,7 +205,7 @@ class ProxiedSigner(
             moduleName = Modules.PROXY,
             callName = "proxy",
             arguments = mapOf(
-                "real" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, proxiedAccountId),
+                "real" to PezkuwiAddressConstructor.constructInstance(runtime.typeRegistry, proxiedAccountId),
                 "force_proxy_type" to DictEnum.Entry(proxyType.name, null),
                 "call" to proxiedCall
             )
diff --git a/feature-external-sign-impl/src/main/java/io/novafoundation/nova/feature_external_sign_impl/domain/sign/polkadot/PolkadotExternalSignInteractor.kt b/feature-external-sign-impl/src/main/java/io/novafoundation/nova/feature_external_sign_impl/domain/sign/polkadot/PolkadotExternalSignInteractor.kt
index f0b512a..0dea7a6 100644
--- a/feature-external-sign-impl/src/main/java/io/novafoundation/nova/feature_external_sign_impl/domain/sign/polkadot/PolkadotExternalSignInteractor.kt
+++ b/feature-external-sign-impl/src/main/java/io/novafoundation/nova/feature_external_sign_impl/domain/sign/polkadot/PolkadotExternalSignInteractor.kt
@@ -231,7 +231,7 @@ class PolkadotExternalSignInteractor(
                 setTransactionExtension(CheckTxVersion(transactionVersion))
 
                 call(parsedExtrinsic.call)
-                CustomTransactionExtensions.applyDefaultValues(builder = this)
+                CustomTransactionExtensions.applyDefaultValues(builder = this, runtime = runtime)
                 applyCustomSignedExtensions(parsedExtrinsic)
 
                 signer.setSignerData(signingContext, signingMode)
diff --git a/feature-governance-impl/src/main/java/io/novafoundation/nova/feature_governance_impl/data/network/blockchain/extrinsic/ExtrinsicBuilderExt.kt b/feature-governance-impl/src/main/java/io/novafoundation/nova/feature_governance_impl/data/network/blockchain/extrinsic/ExtrinsicBuilderExt.kt
index cc2f18a..32d1ed9 100644
--- a/feature-governance-impl/src/main/java/io/novafoundation/nova/feature_governance_impl/data/network/blockchain/extrinsic/ExtrinsicBuilderExt.kt
+++ b/feature-governance-impl/src/main/java/io/novafoundation/nova/feature_governance_impl/data/network/blockchain/extrinsic/ExtrinsicBuilderExt.kt
@@ -13,7 +13,7 @@ import io.novafoundation.nova.runtime.multiNetwork.runtime.types.custom.vote.Con
 import io.novafoundation.nova.runtime.util.constructAccountLookupInstance
 import io.novasama.substrate_sdk_android.runtime.AccountId
 import io.novasama.substrate_sdk_android.runtime.definitions.types.composite.DictEnum
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
 import io.novasama.substrate_sdk_android.runtime.extrinsic.call
 import io.novasama.substrate_sdk_android.runtime.metadata.call
@@ -55,7 +55,7 @@ fun ExtrinsicBuilder.convictionVotingUnlock(
         callName = "unlock",
         arguments = mapOf(
             "class" to trackId.value,
-            "target" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, accountId)
+            "target" to PezkuwiAddressConstructor.constructInstance(runtime.typeRegistry, accountId)
         )
     )
 }
@@ -137,7 +137,7 @@ fun CallBuilder.convictionVotingDelegate(
         callName = "delegate",
         arguments = mapOf(
             "class" to trackId.value,
-            "to" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, delegate),
+            "to" to PezkuwiAddressConstructor.constructInstance(runtime.typeRegistry, delegate),
             "conviction" to conviction.prepareForEncoding(),
             "balance" to amount
         )
diff --git a/feature-proxy-api/src/main/java/io/novafoundation/nova/feature_proxy_api/data/calls/ExtrinsicBuilderExt.kt b/feature-proxy-api/src/main/java/io/novafoundation/nova/feature_proxy_api/data/calls/ExtrinsicBuilderExt.kt
index 8aaf0c1..45ed235 100644
--- a/feature-proxy-api/src/main/java/io/novafoundation/nova/feature_proxy_api/data/calls/ExtrinsicBuilderExt.kt
+++ b/feature-proxy-api/src/main/java/io/novafoundation/nova/feature_proxy_api/data/calls/ExtrinsicBuilderExt.kt
@@ -6,7 +6,7 @@ import java.math.BigInteger
 import io.novasama.substrate_sdk_android.runtime.AccountId
 import io.novasama.substrate_sdk_android.runtime.RuntimeSnapshot
 import io.novasama.substrate_sdk_android.runtime.definitions.types.composite.DictEnum
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
 import io.novasama.substrate_sdk_android.runtime.extrinsic.call
 
@@ -28,7 +28,7 @@ fun ExtrinsicBuilder.removeProxyCall(proxyAccountId: AccountId, proxyType: Proxy
 
 private fun argumentsForProxy(runtime: RuntimeSnapshot, proxyAccountId: AccountId, proxyType: ProxyType): Map<String, Any> {
     return mapOf(
-        "delegate" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, proxyAccountId),
+        "delegate" to PezkuwiAddressConstructor.constructInstance(runtime.typeRegistry, proxyAccountId),
         "proxy_type" to DictEnum.Entry(proxyType.name, null),
         "delay" to BigInteger.ZERO
     )
diff --git a/feature-staking-impl/src/main/java/io/novafoundation/nova/feature_staking_impl/data/network/blockhain/calls/ExtrinsicBuilderExt.kt b/feature-staking-impl/src/main/java/io/novafoundation/nova/feature_staking_impl/data/network/blockhain/calls/ExtrinsicBuilderExt.kt
index c3b7cce..9d0f689 100644
--- a/feature-staking-impl/src/main/java/io/novafoundation/nova/feature_staking_impl/data/network/blockhain/calls/ExtrinsicBuilderExt.kt
+++ b/feature-staking-impl/src/main/java/io/novafoundation/nova/feature_staking_impl/data/network/blockhain/calls/ExtrinsicBuilderExt.kt
@@ -6,7 +6,7 @@ import io.novafoundation.nova.common.utils.voterListName
 import io.novafoundation.nova.feature_staking_api.domain.model.RewardDestination
 import io.novafoundation.nova.feature_staking_impl.data.network.blockhain.bindings.bindRewardDestination
 import io.novasama.substrate_sdk_android.runtime.AccountId
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
 import io.novasama.substrate_sdk_android.runtime.extrinsic.call
 import java.math.BigInteger
@@ -110,7 +110,7 @@ fun ExtrinsicBuilder.rebag(dislocated: AccountId): ExtrinsicBuilder {
         moduleName = runtime.metadata.voterListName(),
         callName = "rebag",
         arguments = mapOf(
-            "dislocated" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, dislocated)
+            "dislocated" to PezkuwiAddressConstructor.constructInstance(runtime.typeRegistry, dislocated)
         )
     )
 }
diff --git a/feature-staking-impl/src/main/java/io/novafoundation/nova/feature_staking_impl/data/nominationPools/network/blockhain/calls/NominationPoolsCalls.kt b/feature-staking-impl/src/main/java/io/novafoundation/nova/feature_staking_impl/data/nominationPools/network/blockhain/calls/NominationPoolsCalls.kt
index b0c39a9..e6e4bc1 100644
--- a/feature-staking-impl/src/main/java/io/novafoundation/nova/feature_staking_impl/data/nominationPools/network/blockhain/calls/NominationPoolsCalls.kt
+++ b/feature-staking-impl/src/main/java/io/novafoundation/nova/feature_staking_impl/data/nominationPools/network/blockhain/calls/NominationPoolsCalls.kt
@@ -6,7 +6,7 @@ import io.novafoundation.nova.feature_staking_impl.data.nominationPools.network.
 import io.novafoundation.nova.feature_wallet_api.data.network.blockhain.types.Balance
 import io.novasama.substrate_sdk_android.runtime.AccountId
 import io.novasama.substrate_sdk_android.runtime.definitions.types.composite.DictEnum
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
 import io.novasama.substrate_sdk_android.runtime.extrinsic.call
 import java.math.BigInteger
@@ -47,7 +47,7 @@ fun NominationPoolsCalls.unbond(unbondAccount: AccountId, unbondPoints: PoolPoin
         moduleName = Modules.NOMINATION_POOLS,
         callName = "unbond",
         arguments = mapOf(
-            "member_account" to AddressInstanceConstructor.constructInstance(extrinsicBuilder.runtime.typeRegistry, unbondAccount),
+            "member_account" to PezkuwiAddressConstructor.constructInstance(extrinsicBuilder.runtime.typeRegistry, unbondAccount),
             "unbonding_points" to unbondPoints.value
         )
     )
@@ -58,7 +58,7 @@ fun NominationPoolsCalls.withdrawUnbonded(memberAccount: AccountId, numberOfSlas
         moduleName = Modules.NOMINATION_POOLS,
         callName = "withdraw_unbonded",
         arguments = mapOf(
-            "member_account" to AddressInstanceConstructor.constructInstance(extrinsicBuilder.runtime.typeRegistry, memberAccount),
+            "member_account" to PezkuwiAddressConstructor.constructInstance(extrinsicBuilder.runtime.typeRegistry, memberAccount),
             "num_slashing_spans" to numberOfSlashingSpans
         )
     )
@@ -77,7 +77,7 @@ fun NominationPoolsCalls.migrateDelegation(memberAccount: AccountId) {
         moduleName = Modules.NOMINATION_POOLS,
         callName = "migrate_delegation",
         arguments = mapOf(
-            "member_account" to AddressInstanceConstructor.constructInstance(extrinsicBuilder.runtime.typeRegistry, memberAccount),
+            "member_account" to PezkuwiAddressConstructor.constructInstance(extrinsicBuilder.runtime.typeRegistry, memberAccount),
         )
     )
 }
diff --git a/feature-wallet-api/src/main/java/io/novafoundation/nova/feature_wallet_api/data/network/blockhain/ExtrinsicBuilderExt.kt b/feature-wallet-api/src/main/java/io/novafoundation/nova/feature_wallet_api/data/network/blockhain/ExtrinsicBuilderExt.kt
index 5212a22..d6ca30b 100644
--- a/feature-wallet-api/src/main/java/io/novafoundation/nova/feature_wallet_api/data/network/blockhain/ExtrinsicBuilderExt.kt
+++ b/feature-wallet-api/src/main/java/io/novafoundation/nova/feature_wallet_api/data/network/blockhain/ExtrinsicBuilderExt.kt
@@ -1,13 +1,15 @@
 package io.novafoundation.nova.feature_wallet_api.data.network.blockhain
 
 import io.novafoundation.nova.common.utils.Modules
+import io.novafoundation.nova.common.utils.argumentType
 import io.novafoundation.nova.common.utils.balances
 import io.novafoundation.nova.common.utils.firstExistingCallName
 import io.novafoundation.nova.common.utils.hasCall
+import io.novafoundation.nova.runtime.util.constructAccountLookupInstance
 import io.novasama.substrate_sdk_android.runtime.AccountId
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
 import io.novasama.substrate_sdk_android.runtime.extrinsic.call
+import io.novasama.substrate_sdk_android.runtime.metadata.call
 import java.math.BigInteger
 
 enum class TransferMode {
@@ -25,11 +27,13 @@ fun ExtrinsicBuilder.nativeTransfer(accountId: AccountId, amount: BigInteger, mo
 }
 
 private fun ExtrinsicBuilder.transferKeepAlive(accountId: AccountId, amount: BigInteger) {
+    val destType = runtime.metadata.balances().call("transfer_keep_alive").argumentType("dest")
+
     call(
         moduleName = Modules.BALANCES,
         callName = "transfer_keep_alive",
         arguments = mapOf(
-            "dest" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, accountId),
+            "dest" to destType.constructAccountLookupInstance(accountId),
             "value" to amount
         )
     )
@@ -37,12 +41,13 @@ private fun ExtrinsicBuilder.transferKeepAlive(accountId: AccountId, amount: Big
 
 private fun ExtrinsicBuilder.transferAllowDeath(accountId: AccountId, amount: BigInteger) {
     val callName = runtime.metadata.balances().firstExistingCallName("transfer_allow_death", "transfer")
+    val destType = runtime.metadata.balances().call(callName).argumentType("dest")
 
     call(
         moduleName = Modules.BALANCES,
         callName = callName,
         arguments = mapOf(
-            "dest" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, accountId),
+            "dest" to destType.constructAccountLookupInstance(accountId),
             "value" to amount
         )
     )
@@ -52,11 +57,13 @@ private fun ExtrinsicBuilder.transferAll(accountId: AccountId, amount: BigIntege
     val transferAllPresent = runtime.metadata.balances().hasCall("transfer_all")
 
     if (transferAllPresent) {
+        val destType = runtime.metadata.balances().call("transfer_all").argumentType("dest")
+
         call(
             moduleName = Modules.BALANCES,
             callName = "transfer_all",
             arguments = mapOf(
-                "dest" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, accountId),
+                "dest" to destType.constructAccountLookupInstance(accountId),
                 "keep_alive" to false
             )
         )
diff --git a/feature-wallet-api/src/main/java/io/novafoundation/nova/feature_wallet_api/presentation/mixin/fee/v2/FeeLoaderV2Provider.kt b/feature-wallet-api/src/main/java/io/novafoundation/nova/feature_wallet_api/presentation/mixin/fee/v2/FeeLoaderV2Provider.kt
index a170428..bb7ee62 100644
--- a/feature-wallet-api/src/main/java/io/novafoundation/nova/feature_wallet_api/presentation/mixin/fee/v2/FeeLoaderV2Provider.kt
+++ b/feature-wallet-api/src/main/java/io/novafoundation/nova/feature_wallet_api/presentation/mixin/fee/v2/FeeLoaderV2Provider.kt
@@ -144,13 +144,36 @@ internal class FeeLoaderV2Provider<F, D>(
 
     private suspend fun onFeeError(error: Throwable, feeConstructor: FeeConstructor<F>) {
         if (error !is CancellationException) {
-            Log.e(LOG_TAG, "Failed to sync fee", error)
+            // Build full error chain for debugging
+            val errorChain = buildString {
+                var current: Throwable? = error
+                var depth = 0
+                while (current != null && depth < 5) {
+                    if (depth > 0) append(" -> ")
+                    append("${current.javaClass.simpleName}: ${current.message}")
+                    current = current.cause
+                    depth++
+                }
+            }
+            val errorMsg = errorChain
+            Log.e(LOG_TAG, "Failed to sync fee: $errorMsg", error)
 
             fee.emit(FeeStatus.Error)
 
-            awaitFeeRetry()
-
-            loadFee(feeConstructor)
+            // Show detailed error in retry dialog with runtime diagnostics
+            val diagnostics = try {
+                io.novafoundation.nova.runtime.multiNetwork.runtime.RuntimeFactory.lastDiagnostics
+            } catch (e: Exception) { "N/A" }
+            retryEvent.postValue(
+                Event(
+                    RetryPayload(
+                        title = resourceManager.getString(R.string.choose_amount_network_error),
+                        message = "DEBUG: $errorMsg | Runtime: $diagnostics",
+                        onRetry = { loadFee(feeConstructor) },
+                        onCancel = { }
+                    )
+                )
+            )
         }
     }
 
diff --git a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/blockchain/assets/transfers/orml/OrmlAssetTransfers.kt b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/blockchain/assets/transfers/orml/OrmlAssetTransfers.kt
index dd80a18..83dea09 100644
--- a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/blockchain/assets/transfers/orml/OrmlAssetTransfers.kt
+++ b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/blockchain/assets/transfers/orml/OrmlAssetTransfers.kt
@@ -24,7 +24,7 @@ import io.novafoundation.nova.runtime.multiNetwork.chain.model.Chain
 import io.novafoundation.nova.runtime.multiNetwork.getRuntime
 import io.novasama.substrate_sdk_android.runtime.AccountId
 import io.novasama.substrate_sdk_android.runtime.definitions.types.generics.GenericCall
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
 import io.novasama.substrate_sdk_android.runtime.extrinsic.call
 import java.math.BigInteger
@@ -88,7 +88,7 @@ open class OrmlAssetTransfers(
             moduleIndex = moduleIndex,
             callIndex = callIndex,
             arguments = mapOf(
-                "dest" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, target),
+                "dest" to PezkuwiAddressConstructor.constructInstance(runtime.typeRegistry, target),
                 "currency_id" to chainAsset.ormlCurrencyId(runtime),
                 "amount" to amount
             )
diff --git a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/blockchain/assets/transfers/statemine/StatemineAssetTransfers.kt b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/blockchain/assets/transfers/statemine/StatemineAssetTransfers.kt
index 269925c..62ac3ff 100644
--- a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/blockchain/assets/transfers/statemine/StatemineAssetTransfers.kt
+++ b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/blockchain/assets/transfers/statemine/StatemineAssetTransfers.kt
@@ -27,7 +27,7 @@ import io.novafoundation.nova.runtime.multiNetwork.getRuntime
 import io.novafoundation.nova.runtime.storage.source.StorageDataSource
 import io.novasama.substrate_sdk_android.runtime.AccountId
 import io.novasama.substrate_sdk_android.runtime.definitions.types.generics.GenericCall
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
 import io.novasama.substrate_sdk_android.runtime.extrinsic.call
 import io.novasama.substrate_sdk_android.runtime.metadata.storage
@@ -109,7 +109,7 @@ class StatemineAssetTransfers(
             callName = "transfer",
             arguments = mapOf(
                 "id" to assetType.prepareIdForEncoding(runtime),
-                "target" to AddressInstanceConstructor.constructInstance(runtime.typeRegistry, target),
+                "target" to PezkuwiAddressConstructor.constructInstance(runtime.typeRegistry, target),
                 "amount" to amount
             )
         )
diff --git a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/NativeAssetIssuer.kt b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/NativeAssetIssuer.kt
index 6caab3c..d254e79 100644
--- a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/NativeAssetIssuer.kt
+++ b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/NativeAssetIssuer.kt
@@ -6,7 +6,7 @@ import io.novafoundation.nova.common.utils.composeCall
 import io.novafoundation.nova.feature_wallet_api.data.network.blockhain.types.Balance
 import io.novasama.substrate_sdk_android.runtime.RuntimeSnapshot
 import io.novasama.substrate_sdk_android.runtime.definitions.types.generics.GenericCall
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 
 class NativeAssetIssuer(
     private val runtimeSnapshot: RuntimeSnapshot
@@ -17,7 +17,7 @@ class NativeAssetIssuer(
             moduleName = Modules.BALANCES,
             callName = "force_set_balance",
             arguments = mapOf(
-                "who" to AddressInstanceConstructor.constructInstance(runtimeSnapshot.typeRegistry, destination.value),
+                "who" to PezkuwiAddressConstructor.constructInstance(runtimeSnapshot.typeRegistry, destination.value),
                 "new_free" to amount
             )
         )
diff --git a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/OrmlAssetIssuer.kt b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/OrmlAssetIssuer.kt
index 7e90af9..c374a53 100644
--- a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/OrmlAssetIssuer.kt
+++ b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/OrmlAssetIssuer.kt
@@ -8,7 +8,7 @@ import io.novafoundation.nova.runtime.ext.currencyId
 import io.novafoundation.nova.runtime.multiNetwork.chain.model.Chain
 import io.novasama.substrate_sdk_android.runtime.RuntimeSnapshot
 import io.novasama.substrate_sdk_android.runtime.definitions.types.generics.GenericCall
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 
 class OrmlAssetIssuer(
     private val ormlType: Chain.Asset.Type.Orml,
@@ -20,7 +20,7 @@ class OrmlAssetIssuer(
             moduleName = Modules.TOKENS,
             callName = "set_balance",
             arguments = mapOf(
-                "who" to AddressInstanceConstructor.constructInstance(runtimeSnapshot.typeRegistry, destination.value),
+                "who" to PezkuwiAddressConstructor.constructInstance(runtimeSnapshot.typeRegistry, destination.value),
                 "currency_id" to ormlType.currencyId(runtimeSnapshot),
                 "new_free" to amount,
                 "new_reserved" to Balance.ZERO
diff --git a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/StatemineAssetIssuer.kt b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/StatemineAssetIssuer.kt
index 3cc255f..f4c26c1 100644
--- a/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/StatemineAssetIssuer.kt
+++ b/feature-wallet-impl/src/main/java/io/novafoundation/nova/feature_wallet_impl/data/network/crosschain/dynamic/dryRun/issuing/StatemineAssetIssuer.kt
@@ -12,7 +12,7 @@ import io.novafoundation.nova.runtime.multiNetwork.chain.model.ChainId
 import io.novafoundation.nova.runtime.multiNetwork.chain.model.prepareIdForEncoding
 import io.novasama.substrate_sdk_android.runtime.RuntimeSnapshot
 import io.novasama.substrate_sdk_android.runtime.definitions.types.generics.GenericCall
-import io.novasama.substrate_sdk_android.runtime.definitions.types.instances.AddressInstanceConstructor
+import io.novafoundation.nova.common.utils.PezkuwiAddressConstructor
 
 class StatemineAssetIssuer(
     private val chainId: ChainId,
@@ -38,7 +38,7 @@ class StatemineAssetIssuer(
             callName = "mint",
             arguments = mapOf(
                 "id" to assetType.prepareIdForEncoding(runtimeSnapshot),
-                "beneficiary" to AddressInstanceConstructor.constructInstance(runtimeSnapshot.typeRegistry, destination.value),
+                "beneficiary" to PezkuwiAddressConstructor.constructInstance(runtimeSnapshot.typeRegistry, destination.value),
                 "amount" to amount
             )
         )
diff --git a/pezkuwi-config/chains.json b/pezkuwi-config/chains.json
index f54fd91..de7449c 100644
--- a/pezkuwi-config/chains.json
+++ b/pezkuwi-config/chains.json
@@ -53,10 +53,13 @@
         "typeExtras": null
       }
     ],
-    "types": null,
+    "types": {
+      "overridesCommon": false
+    },
     "additional": {
       "themeColor": "#009639",
-      "defaultBlockTimeMillis": 6000
+      "defaultBlockTimeMillis": 6000,
+      "feeViaRuntimeCall": true
     }
   },
   {
@@ -88,8 +91,12 @@
         "icon": "https://pezkuwichain.io/tokens/HEZ.png"
       }
     ],
+    "types": {
+      "overridesCommon": false
+    },
     "additional": {
-      "themeColor": "#009639"
+      "themeColor": "#009639",
+      "feeViaRuntimeCall": true
     }
   },
   {
@@ -166,10 +173,13 @@
         }
       }
     ],
-    "types": null,
+    "types": {
+      "overridesCommon": false
+    },
     "additional": {
       "themeColor": "#009639",
-      "defaultBlockTimeMillis": 6000
+      "defaultBlockTimeMillis": 6000,
+      "feeViaRuntimeCall": true
     }
   },
   {
@@ -214,10 +224,13 @@
         "typeExtras": null
       }
     ],
-    "types": null,
+    "types": {
+      "overridesCommon": false
+    },
     "additional": {
       "themeColor": "#009639",
-      "defaultBlockTimeMillis": 6000
+      "defaultBlockTimeMillis": 6000,
+      "feeViaRuntimeCall": true
     }
   },
   {
diff --git a/runtime/build.gradle b/runtime/build.gradle
index 8600446..673767d 100644
--- a/runtime/build.gradle
+++ b/runtime/build.gradle
@@ -7,7 +7,7 @@ android {
 
         
 
-        buildConfigField "String", "CHAINS_URL", "\"https://wallet.pezkuwichain.io/chains.json\""
+        buildConfigField "String", "CHAINS_URL", "\"https://raw.githubusercontent.com/pezkuwichain/pezkuwi-wallet-utils/master/chains/v22/android/chains.json\""
         buildConfigField "String", "EVM_ASSETS_URL", "\"https://wallet.pezkuwichain.io/evm_assets.json\""
         buildConfigField "String", "PRE_CONFIGURED_CHAINS_URL", "\"https://wallet.pezkuwichain.io/pre_configured_chains.json\""
         buildConfigField "String", "PRE_CONFIGURED_CHAIN_DETAILS_URL", "\"https://wallet.pezkuwichain.io/chain_details\""
@@ -27,7 +27,7 @@ android {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
 
-            buildConfigField "String", "CHAINS_URL", "\"https://wallet.pezkuwichain.io/chains.json\""
+            buildConfigField "String", "CHAINS_URL", "\"https://raw.githubusercontent.com/pezkuwichain/pezkuwi-wallet-utils/master/chains/v22/android/chains.json\""
             buildConfigField "String", "EVM_ASSETS_URL", "\"https://wallet.pezkuwichain.io/evm_assets.json\""
             buildConfigField "String", "PRE_CONFIGURED_CHAINS_URL", "\"https://wallet.pezkuwichain.io/pre_configured_chains.json\""
             buildConfigField "String", "PRE_CONFIGURED_CHAIN_DETAILS_URL", "\"https://wallet.pezkuwichain.io/chain_details\""
diff --git a/runtime/src/main/assets/types/pezkuwi.json b/runtime/src/main/assets/types/pezkuwi.json
new file mode 100644
index 0000000..7e71938
--- /dev/null
+++ b/runtime/src/main/assets/types/pezkuwi.json
@@ -0,0 +1,12 @@
+{
+  "types": {
+    "ExtrinsicSignature": "MultiSignature",
+    "Address": "pezsp_runtime::multiaddress::MultiAddress",
+    "LookupSource": "pezsp_runtime::multiaddress::MultiAddress"
+  },
+  "typesAlias": {
+    "pezsp_runtime::multiaddress::MultiAddress": "MultiAddress",
+    "pezsp_runtime::MultiSignature": "MultiSignature",
+    "pezsp_runtime.generic.era.Era": "Era"
+  }
+}
diff --git a/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/CustomTransactionExtensions.kt b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/CustomTransactionExtensions.kt
index ade6851..819a2f8 100644
--- a/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/CustomTransactionExtensions.kt
+++ b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/CustomTransactionExtensions.kt
@@ -1,12 +1,18 @@
 package io.novafoundation.nova.runtime.extrinsic
 
+import android.util.Log
 import io.novafoundation.nova.runtime.extrinsic.extensions.AuthorizeCall
 import io.novafoundation.nova.runtime.extrinsic.extensions.ChargeAssetTxPayment
 import io.novafoundation.nova.runtime.extrinsic.extensions.CheckAppId
+import io.novafoundation.nova.runtime.extrinsic.extensions.CheckNonZeroSender
+import io.novafoundation.nova.runtime.extrinsic.extensions.CheckWeight
+import io.novafoundation.nova.runtime.extrinsic.extensions.WeightReclaim
 import io.novasama.substrate_sdk_android.runtime.RuntimeSnapshot
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
 import io.novasama.substrate_sdk_android.runtime.extrinsic.v5.transactionExtension.TransactionExtension
 
+private const val TAG = "CustomTxExtensions"
+
 object CustomTransactionExtensions {
 
     // PezkuwiChain genesis hashes (mainnet and teyrchains)
@@ -34,21 +40,33 @@ object CustomTransactionExtensions {
 
     fun defaultValues(runtime: RuntimeSnapshot): List<TransactionExtension> {
         val extensions = mutableListOf<TransactionExtension>()
+        val isPezkuwi = isPezkuwiChain(runtime)
 
-        // Add AuthorizeCall only for PezkuwiChain networks
-        if (isPezkuwiChain(runtime)) {
+        Log.d(TAG, "isPezkuwiChain: $isPezkuwi")
+
+        if (isPezkuwi) {
+            // Pezkuwi needs: AuthorizeCall, CheckNonZeroSender, CheckWeight, WeightReclaim
+            // Other extensions (CheckMortality, CheckGenesis, etc.) are set in ExtrinsicBuilderFactory
+            Log.d(TAG, "Adding Pezkuwi extensions: AuthorizeCall, CheckNonZeroSender, CheckWeight, WeightReclaim")
             extensions.add(AuthorizeCall())
+            extensions.add(CheckNonZeroSender())
+            extensions.add(CheckWeight())
+            extensions.add(WeightReclaim())
+        } else {
+            // Other chains (Asset Hub, etc.) use ChargeAssetTxPayment and CheckAppId
+            Log.d(TAG, "Adding default extensions: ChargeAssetTxPayment, CheckAppId")
+            extensions.add(ChargeAssetTxPayment())
+            extensions.add(CheckAppId())
         }
 
-        extensions.add(ChargeAssetTxPayment())
-        extensions.add(CheckAppId())
-
         return extensions
     }
 
     private fun isPezkuwiChain(runtime: RuntimeSnapshot): Boolean {
-        val genesisHash = runtime.metadata.extrinsic.signedExtensions
-            .any { it.id == "AuthorizeCall" }
-        return genesisHash
+        val signedExtIds = runtime.metadata.extrinsic.signedExtensions.map { it.id }
+        Log.d(TAG, "Metadata signed extensions: $signedExtIds")
+        val hasAuthorizeCall = signedExtIds.any { it == "AuthorizeCall" }
+        Log.d(TAG, "Has AuthorizeCall: $hasAuthorizeCall")
+        return hasAuthorizeCall
     }
 }
diff --git a/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/ExtrinsicBuilderFactory.kt b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/ExtrinsicBuilderFactory.kt
index a86b3ed..8c628ee 100644
--- a/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/ExtrinsicBuilderFactory.kt
+++ b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/ExtrinsicBuilderFactory.kt
@@ -1,12 +1,15 @@
 package io.novafoundation.nova.runtime.extrinsic
 
+import android.util.Log
 import io.novafoundation.nova.common.utils.orZero
 import io.novafoundation.nova.runtime.ext.requireGenesisHash
+import io.novafoundation.nova.runtime.extrinsic.extensions.PezkuwiCheckMortality
 import io.novafoundation.nova.runtime.extrinsic.metadata.MetadataShortenerService
 import io.novafoundation.nova.runtime.multiNetwork.ChainRegistry
 import io.novafoundation.nova.runtime.multiNetwork.chain.model.Chain
 import io.novafoundation.nova.runtime.multiNetwork.getRuntime
 import io.novasama.substrate_sdk_android.extensions.fromHex
+import io.novasama.substrate_sdk_android.runtime.RuntimeSnapshot
 import io.novasama.substrate_sdk_android.runtime.extrinsic.BatchMode
 import io.novasama.substrate_sdk_android.runtime.extrinsic.ExtrinsicVersion
 import io.novasama.substrate_sdk_android.runtime.extrinsic.builder.ExtrinsicBuilder
@@ -17,6 +20,8 @@ import io.novasama.substrate_sdk_android.runtime.extrinsic.v5.transactionExtensi
 import io.novasama.substrate_sdk_android.runtime.extrinsic.v5.transactionExtension.extensions.CheckTxVersion
 import io.novasama.substrate_sdk_android.runtime.extrinsic.v5.transactionExtension.extensions.checkMetadataHash.CheckMetadataHash
 
+private const val TAG = "ExtrinsicBuilderFactory"
+
 class ExtrinsicBuilderFactory(
     private val chainRegistry: ChainRegistry,
     private val mortalityConstructor: MortalityConstructor,
@@ -40,16 +45,33 @@ class ExtrinsicBuilderFactory(
     ): Sequence<ExtrinsicBuilder> {
         val runtime = chainRegistry.getRuntime(chain.id)
 
+        // Log metadata extensions
+        val metadataExtensions = runtime.metadata.extrinsic.signedExtensions.map { it.id }
+        Log.d(TAG, "Chain: ${chain.name}, Metadata extensions: $metadataExtensions")
+
         val mortality = mortalityConstructor.constructMortality(chain.id)
         val metadataProof = metadataShortenerService.generateMetadataProof(chain.id)
 
+        // Log custom extensions
+        val customExtensions = CustomTransactionExtensions.defaultValues(runtime).map { it.name }
+        Log.d(TAG, "Custom extensions to add: $customExtensions")
+
+        val isPezkuwi = isPezkuwiChain(runtime)
+        Log.d(TAG, "isPezkuwiChain: $isPezkuwi")
+
         return generateSequence {
             ExtrinsicBuilder(
                 runtime = runtime,
                 extrinsicVersion = ExtrinsicVersion.V4,
                 batchMode = options.batchMode,
             ).apply {
-                setTransactionExtension(CheckMortality(mortality.era, mortality.blockHash.fromHex()))
+                // Use custom CheckMortality for Pezkuwi chains to avoid type lookup issues
+                if (isPezkuwi) {
+                    Log.d(TAG, "Using PezkuwiCheckMortality for ${chain.name}")
+                    setTransactionExtension(PezkuwiCheckMortality(mortality.era, mortality.blockHash.fromHex()))
+                } else {
+                    setTransactionExtension(CheckMortality(mortality.era, mortality.blockHash.fromHex()))
+                }
                 setTransactionExtension(CheckGenesis(chain.requireGenesisHash().fromHex()))
                 setTransactionExtension(ChargeTransactionPayment(chain.additional?.defaultTip.orZero()))
                 setTransactionExtension(CheckMetadataHash(metadataProof.checkMetadataHash))
@@ -57,7 +79,14 @@ class ExtrinsicBuilderFactory(
                 setTransactionExtension(CheckTxVersion(metadataProof.usedVersion.transactionVersion))
 
                 CustomTransactionExtensions.defaultValues(runtime).forEach(::setTransactionExtension)
+
+                Log.d(TAG, "All extensions set for ${chain.name}")
             }
         }
     }
+
+    private fun isPezkuwiChain(runtime: RuntimeSnapshot): Boolean {
+        val signedExtIds = runtime.metadata.extrinsic.signedExtensions.map { it.id }
+        return signedExtIds.any { it == "AuthorizeCall" }
+    }
 }
diff --git a/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/CheckNonZeroSender.kt b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/CheckNonZeroSender.kt
new file mode 100644
index 0000000..4b31565
--- /dev/null
+++ b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/CheckNonZeroSender.kt
@@ -0,0 +1,18 @@
+package io.novafoundation.nova.runtime.extrinsic.extensions
+
+import io.novasama.substrate_sdk_android.runtime.extrinsic.v5.transactionExtension.extensions.FixedValueTransactionExtension
+
+/**
+ * Signed extension for PezkuwiChain that checks for non-zero sender.
+ * This extension ensures the sender is not the zero address.
+ *
+ * In the runtime, CheckNonZeroSender is defined as:
+ * pub struct CheckNonZeroSender<T>(core::marker::PhantomData<T>);
+ *
+ * It uses PhantomData internally, so it has no payload (empty encoding).
+ */
+class CheckNonZeroSender : FixedValueTransactionExtension(
+    name = "CheckNonZeroSender",
+    implicit = null,
+    explicit = null  // PhantomData encodes to nothing
+)
diff --git a/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/CheckWeight.kt b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/CheckWeight.kt
new file mode 100644
index 0000000..1025c55
--- /dev/null
+++ b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/CheckWeight.kt
@@ -0,0 +1,16 @@
+package io.novafoundation.nova.runtime.extrinsic.extensions
+
+import io.novasama.substrate_sdk_android.runtime.extrinsic.v5.transactionExtension.extensions.FixedValueTransactionExtension
+
+/**
+ * Signed extension that checks weight limits.
+ * This extension uses PhantomData internally, so it has no payload (empty encoding).
+ *
+ * In the runtime, CheckWeight is defined as:
+ * pub struct CheckWeight<T>(core::marker::PhantomData<T>);
+ */
+class CheckWeight : FixedValueTransactionExtension(
+    name = "CheckWeight",
+    implicit = null,
+    explicit = null  // PhantomData encodes to nothing
+)
diff --git a/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/PezkuwiCheckMortality.kt b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/PezkuwiCheckMortality.kt
new file mode 100644
index 0000000..c070dbf
--- /dev/null
+++ b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/PezkuwiCheckMortality.kt
@@ -0,0 +1,68 @@
+package io.novafoundation.nova.runtime.extrinsic.extensions
+
+import io.novasama.substrate_sdk_android.runtime.definitions.types.composite.DictEnum
+import io.novasama.substrate_sdk_android.runtime.definitions.types.generics.Era
+import io.novasama.substrate_sdk_android.runtime.extrinsic.v5.transactionExtension.extensions.FixedValueTransactionExtension
+import java.math.BigInteger
+
+/**
+ * Custom CheckMortality extension for Pezkuwi chains.
+ *
+ * Pezkuwi uses pezsp_runtime.generic.era.Era which is a DictEnum with variants:
+ * - Immortal
+ * - Mortal1(u8), Mortal2(u8), ..., Mortal255(u8)
+ *
+ * The variant name is "MortalX" where X is the first byte of the encoded era,
+ * and the variant's value is the second byte (u8).
+ *
+ * @param era The mortal era from MortalityConstructor
+ * @param blockHash The block hash (32 bytes) for the signer payload
+ */
+class PezkuwiCheckMortality(
+    era: Era.Mortal,
+    blockHash: ByteArray
+) : FixedValueTransactionExtension(
+    name = "CheckMortality",
+    implicit = blockHash,  // blockHash goes into signer payload
+    explicit = createEraEntry(era)  // Era as DictEnum.Entry
+) {
+    companion object {
+        /**
+         * Creates a DictEnum.Entry for the Era.
+         *
+         * Standard Era encoding produces 2 bytes:
+         * - First byte determines the variant name (Mortal1, Mortal2, ..., Mortal255)
+         * - Second byte is the variant's value (u8)
+         */
+        private fun createEraEntry(era: Era.Mortal): DictEnum.Entry<BigInteger> {
+            val period = era.period.toLong()
+            val phase = era.phase.toLong()
+            val quantizeFactor = maxOf(period shr 12, 1)
+
+            // Calculate the two-byte encoding
+            val encoded = ((countTrailingZeroBits(period) - 1).coerceIn(1, 15)) or
+                          ((phase / quantizeFactor).toInt() shl 4)
+
+            val firstByte = encoded and 0xFF
+            val secondByte = (encoded shr 8) and 0xFF
+
+            // DictEnum variant: "MortalX" where X is the first byte
+            // Variant value: second byte as u8 (BigInteger)
+            return DictEnum.Entry(
+                name = "Mortal$firstByte",
+                value = BigInteger.valueOf(secondByte.toLong())
+            )
+        }
+
+        private fun countTrailingZeroBits(value: Long): Int {
+            if (value == 0L) return 64
+            var n = 0
+            var x = value
+            while ((x and 1L) == 0L) {
+                n++
+                x = x shr 1
+            }
+            return n
+        }
+    }
+}
diff --git a/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/WeightReclaim.kt b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/WeightReclaim.kt
new file mode 100644
index 0000000..f8db335
--- /dev/null
+++ b/runtime/src/main/java/io/novafoundation/nova/runtime/extrinsic/extensions/WeightReclaim.kt
@@ -0,0 +1,18 @@
+package io.novafoundation.nova.runtime.extrinsic.extensions
+
+import io.novasama.substrate_sdk_android.runtime.extrinsic.v5.transactionExtension.extensions.FixedValueTransactionExtension
+
+/**
+ * Signed extension for PezkuwiChain that handles weight reclamation.
+ * This extension reclaims unused weight after transaction execution.
+ *
+ * In the runtime, WeightReclaim is defined as:
+ * pub struct WeightReclaim<T>(core::marker::PhantomData<T>);
+ *
+ * It uses PhantomData internally, so it has no payload (empty encoding).
+ */
+class WeightReclaim : FixedValueTransactionExtension(
+    name = "WeightReclaim",
+    implicit = null,
+    explicit = null  // PhantomData encodes to nothing
+)
diff --git a/runtime/src/main/java/io/novafoundation/nova/runtime/multiNetwork/runtime/RuntimeFactory.kt b/runtime/src/main/java/io/novafoundation/nova/runtime/multiNetwork/runtime/RuntimeFactory.kt
index 0965243..85db651 100644
--- a/runtime/src/main/java/io/novafoundation/nova/runtime/multiNetwork/runtime/RuntimeFactory.kt
+++ b/runtime/src/main/java/io/novafoundation/nova/runtime/multiNetwork/runtime/RuntimeFactory.kt
@@ -47,6 +47,10 @@ class RuntimeFactory(
     private val gson: Gson,
     private val concurrencyLimit: Int = 1
 ) {
+    companion object {
+        @Volatile
+        var lastDiagnostics: String = "not yet initialized"
+    }
 
     private val dispatcher = newLimitedThreadPoolExecutor(concurrencyLimit).asCoroutineDispatcher()
     private val semaphore = Semaphore(concurrencyLimit)
@@ -88,9 +92,13 @@ class RuntimeFactory(
             )
         }
 
+        Log.d("RuntimeFactory", "DEBUG: TypesUsage for chain $chainId = $typesUsage")
+
         val (types, baseHash, ownHash) = when (typesUsage) {
             TypesUsage.BASE -> {
+                Log.d("RuntimeFactory", "DEBUG: Loading BASE types for $chainId")
                 val (types, baseHash) = constructBaseTypes(typePreset)
+                Log.d("RuntimeFactory", "DEBUG: BASE types loaded, hash=$baseHash, typeCount=${types.size}")
 
                 Triple(types, baseHash, null)
             }
@@ -104,6 +112,15 @@ class RuntimeFactory(
         }
 
         val typeRegistry = TypeRegistry(types, DynamicTypeResolver(DynamicTypeResolver.DEFAULT_COMPOUND_EXTENSIONS + GenericsExtension))
+
+        // DEBUG: Check for ExtrinsicSignature
+        val hasExtrinsicSignature = typeRegistry["ExtrinsicSignature"] != null
+        val hasMultiSignature = typeRegistry["MultiSignature"] != null
+        Log.d("RuntimeFactory", "DEBUG: Chain $chainId - ExtrinsicSignature=$hasExtrinsicSignature, MultiSignature=$hasMultiSignature, typesUsage=$typesUsage, typeCount=${types.size}")
+
+        // Store diagnostic info for error messages
+        lastDiagnostics = "typesUsage=$typesUsage, ExtrinsicSig=$hasExtrinsicSignature, MultiSig=$hasMultiSignature, typeCount=${types.size}"
+
         val runtimeMetadata = VersionedRuntimeBuilder.buildMetadata(metadataReader, typeRegistry)
 
         ConstructedRuntime(
@@ -154,7 +171,12 @@ class RuntimeFactory(
 
     private suspend fun constructBaseTypes(initialPreset: TypePreset): Pair<TypePreset, String> {
         val baseTypesRaw = runCatching { runtimeFilesCache.getBaseTypes() }
-            .getOrElse { throw BaseTypesNotInCacheException }
+            .getOrElse {
+                Log.e("RuntimeFactory", "DEBUG: BaseTypes NOT in cache!")
+                throw BaseTypesNotInCacheException
+            }
+
+        Log.d("RuntimeFactory", "DEBUG: BaseTypes loaded, length=${baseTypesRaw.length}, contains ExtrinsicSignature=${baseTypesRaw.contains("ExtrinsicSignature")}")
 
         val typePreset = parseBaseDefinitions(fromJson(baseTypesRaw), initialPreset)
 
diff --git a/runtime/src/main/java/io/novafoundation/nova/runtime/util/RuntimeSnapshotExt.kt b/runtime/src/main/java/io/novafoundation/nova/runtime/util/RuntimeSnapshotExt.kt
index e4d6002..b6d5cf1 100644
--- a/runtime/src/main/java/io/novafoundation/nova/runtime/util/RuntimeSnapshotExt.kt
+++ b/runtime/src/main/java/io/novafoundation/nova/runtime/util/RuntimeSnapshotExt.kt
@@ -5,7 +5,14 @@ import io.novasama.substrate_sdk_android.runtime.definitions.types.primitives.Fi
 import io.novasama.substrate_sdk_android.runtime.definitions.types.skipAliases
 
 fun RuntimeSnapshot.isEthereumAddress(): Boolean {
-    val addressType = typeRegistry["Address"]!!.skipAliases()!!
+    // Try different address type names used by different chains
+    val addressType = typeRegistry["Address"]
+        ?: typeRegistry["MultiAddress"]
+        ?: typeRegistry["sp_runtime::multiaddress::MultiAddress"]
+        ?: typeRegistry["pezsp_runtime::multiaddress::MultiAddress"]
+        ?: return false  // If no address type found, assume not Ethereum
 
-    return addressType is FixedByteArray && addressType.length == 20
+    val resolvedType = addressType.skipAliases() ?: return false
+
+    return resolvedType is FixedByteArray && resolvedType.length == 20
 }
diff --git a/version.properties b/version.properties
index 4cc24b9..1b32111 100644
--- a/version.properties
+++ b/version.properties
@@ -1 +1 @@
-VERSION_CODE=6
\ No newline at end of file
+VERSION_CODE=31
\ No newline at end of file