Updated on 2026-08-14

app/src/main/java/com/tangem/tap/domain/extensions/CurrencyExchangeManager.kt

@@ -1,6 +1,7 @@
 package com.tangem.tap.domain.extensions
 
 import com.tangem.blockchain.common.Blockchain
+import com.tangem.blockchain.common.Blockchain.Arbitrum
 import com.tangem.tap.features.wallet.models.Currency
 import com.tangem.tap.network.exchangeServices.CurrencyExchangeManager
 import com.tangem.tap.network.exchangeServices.CurrencyExchangeStatus
@@ -19,6 +20,7 @@ fun CurrencyExchangeManager.sellIsAllowed(currency: Currency): Boolean {
 
 fun CurrencyExchangeStatus.buyIsAllowed(currency: Currency): Boolean {
     if (store.state.globalState.configManager?.config?.isTopUpEnabled == false) return false
+    if (currency.blockchain == Arbitrum) return false
     if (!isBuyAllowed) return false
 
     //TODO: temporary, for the 3.32 release, unlock all buy button

app/src/main/java/com/tangem/tap/domain/tokens/LoadAvailableCoinsService.kt

@@ -21,7 +21,7 @@ class LoadAvailableCoinsService(
         if (isTestNet) {
             return Result.Success(
                 LoadedCoins(
-                    currencies = currenciesRepository.getTestnetCoins(),
+                    currencies = currenciesRepository.getTestnetCoins().filter(searchInput),
                     moreAvailable = false,
                 )
             )
@@ -59,6 +59,15 @@ class LoadAvailableCoinsService(
         )
     }
 
+    private fun List<Currency>.filter(searchInput: String?): List<Currency> {
+        if (searchInput.isNullOrBlank()) return this
+
+        return filter{
+            it.symbol.contains(searchInput, ignoreCase = true) ||
+                    it.name.contains(searchInput, ignoreCase = true)
+        }
+    }
+
     companion object {
         const val LOAD_PER_PAGE = 100
     }

app/src/main/java/com/tangem/tap/domain/twins/WriteProtectedIssuerDataTask.kt

@@ -63,11 +63,17 @@ class WriteProtectedIssuerDataTask(
         val counter = (readResponse.issuerDataCounter ?: 0) + 1
         val data = twinPublicKey + cardSignature
         val signedByIssuer = FileHashHelper.prepareHashes(
-            cardId, data, counter, issuerKeys.privateKey
+            cardId = cardId,
+            fileData = data,
+            fileCounter = counter,
+            fileName = null,
+            privateKey = issuerKeys.privateKey,
         )
         WriteIssuerDataCommand(
-            data, signedByIssuer.finalizingSignature!!,
-            counter, issuerKeys.publicKey
+            issuerData = data,
+            issuerDataSignature = signedByIssuer.finalizingSignature!!,
+            issuerDataCounter = counter,
+            issuerPublicKey = issuerKeys.publicKey,
         ).run(session, callback)
     }
 }