diff --git a/tangem-devkit/src/main/java/com/tangem/devkit/ucase/domain/responses/ResponseJsonConverter.kt b/tangem-devkit/src/main/java/com/tangem/devkit/ucase/domain/responses/ResponseJsonConverter.kt
index 06ca8702e5..4c6148b6f9 100644
--- a/tangem-devkit/src/main/java/com/tangem/devkit/ucase/domain/responses/ResponseJsonConverter.kt
+++ b/tangem-devkit/src/main/java/com/tangem/devkit/ucase/domain/responses/ResponseJsonConverter.kt
@@ -36,7 +36,7 @@ class ByteTypeAdapter(
         private val fieldConverter: ResponseFieldConverter
 ) : JsonSerializer<ByteArray> {
     override fun serialize(src: ByteArray, typeOfSrc: Type, context: JsonSerializationContext): JsonElement {
-        return JsonPrimitive(fieldConverter.byteArray(src))
+        return JsonPrimitive(fieldConverter.byteArrayToHex(src))
     }
 }
 
@@ -109,7 +109,11 @@ class ResponseFieldConverter {
         return Settings.values().filter { masks.contains(it) }.map { it.name }
     }
 
-    fun byteArray(byteArray: ByteArray?): String? {
+    fun byteArrayToHex(byteArray: ByteArray?): String? {
         return byteArray?.toHexString()
     }
+
+    fun byteArrayToString(byteArray: ByteArray?): String? {
+        return if (byteArray == null) null else String(byteArray)
+    }
 }
\ No newline at end of file
diff --git a/tangem-devkit/src/main/java/com/tangem/devkit/ucase/variants/responses/converter/CardConverter.kt b/tangem-devkit/src/main/java/com/tangem/devkit/ucase/variants/responses/converter/CardConverter.kt
index 44e2a5d571..adc53f1fd3 100644
--- a/tangem-devkit/src/main/java/com/tangem/devkit/ucase/variants/responses/converter/CardConverter.kt
+++ b/tangem-devkit/src/main/java/com/tangem/devkit/ucase/variants/responses/converter/CardConverter.kt
@@ -43,12 +43,12 @@ class CardConverter : BaseResponseConverter<Card>() {
         group.addItem(TextItem(CardId.manufacturerName, from.manufacturerName))
         group.addItem(TextItem(CardId.status, valueToString(from.status)))
         group.addItem(TextItem(CardId.firmwareVersion, from.firmwareVersion))
-        group.addItem(TextItem(CardId.cardPublicKey, fieldConverter.byteArray(from.cardPublicKey)))
-        group.addItem(TextItem(CardId.issuerPublicKey, fieldConverter.byteArray(from.issuerPublicKey)))
+        group.addItem(TextItem(CardId.cardPublicKey, fieldConverter.byteArrayToHex(from.cardPublicKey)))
+        group.addItem(TextItem(CardId.issuerPublicKey, fieldConverter.byteArrayToHex(from.issuerPublicKey)))
         group.addItem(TextItem(CardId.curve, valueToString(from.curve)))
         group.addItem(TextItem(CardId.maxSignatures, valueToString(from.maxSignatures)))
         group.addItem(TextItem(CardId.pauseBeforePin2, valueToString(from.pauseBeforePin2)))
-        group.addItem(TextItem(CardId.walletPublicKey, fieldConverter.byteArray(from.walletPublicKey)))
+        group.addItem(TextItem(CardId.walletPublicKey, fieldConverter.byteArrayToHex(from.walletPublicKey)))
         group.addItem(TextItem(CardId.walletRemainingSignatures, valueToString(from.walletRemainingSignatures)))
         group.addItem(TextItem(CardId.walletSignedHashes, valueToString(from.walletSignedHashes)))
         group.addItem(TextItem(CardId.health, valueToString(from.health)))
@@ -72,7 +72,7 @@ class CardConverter : BaseResponseConverter<Card>() {
         group.addItem(TextItem(CardDataId.manufactureDateTime, valueToString(data.manufactureDateTime)))
         group.addItem(TextItem(CardDataId.issuerName, data.issuerName))
         group.addItem(TextItem(CardDataId.blockchainName, data.blockchainName))
-        group.addItem(TextItem(CardDataId.manufacturerSignature, fieldConverter.byteArray(data.manufacturerSignature)))
+        group.addItem(TextItem(CardDataId.manufacturerSignature, fieldConverter.byteArrayToHex(data.manufacturerSignature)))
         group.addItem(TextItem(CardDataId.tokenSymbol, data.tokenSymbol))
         group.addItem(TextItem(CardDataId.tokenContractAddress, data.tokenContractAddress))
         group.addItem(TextItem(CardDataId.tokenDecimal, data.tokenSymbol))
diff --git a/tangem-devkit/src/main/java/com/tangem/devkit/ucase/variants/responses/converter/SimpleConverters.kt b/tangem-devkit/src/main/java/com/tangem/devkit/ucase/variants/responses/converter/SimpleConverters.kt
index e68c77e083..e06e2492f0 100644
--- a/tangem-devkit/src/main/java/com/tangem/devkit/ucase/variants/responses/converter/SimpleConverters.kt
+++ b/tangem-devkit/src/main/java/com/tangem/devkit/ucase/variants/responses/converter/SimpleConverters.kt
@@ -17,7 +17,7 @@ class SignResponseConverter : BaseResponseConverter<SignResponse>() {
                 TextItem(SignId.cid, from.cardId),
                 TextItem(SignId.walletSignedHashes, valueToString(from.walletSignedHashes)),
                 TextItem(SignId.walletRemainingSignatures, valueToString(from.walletRemainingSignatures)),
-                TextItem(SignId.signature, fieldConverter.byteArray(from.signature))
+                TextItem(SignId.signature, fieldConverter.byteArrayToHex(from.signature))
         )
     }
 }
@@ -33,7 +33,7 @@ class CreateWalletResponseConverter : BaseResponseConverter<CreateWalletResponse
         return listOf(
                 TextItem(CreateWalletId.cid, from.cardId),
                 TextItem(CreateWalletId.cardStatus, valueToString(from.status)),
-                TextItem(CreateWalletId.walletPublicKey, fieldConverter.byteArray(from.walletPublicKey))
+                TextItem(CreateWalletId.walletPublicKey, fieldConverter.byteArrayToHex(from.walletPublicKey))
         )
     }
 }
@@ -51,8 +51,8 @@ class ReadIssuerDataResponseConverter : BaseResponseConverter<ReadIssuerDataResp
     override fun convert(from: ReadIssuerDataResponse): List<Item> {
         return listOf(
                 TextItem(ReadIssuerDataId.cid, from.cardId),
-                TextItem(ReadIssuerDataId.issuerData, fieldConverter.byteArray(from.issuerData)),
-                TextItem(ReadIssuerDataId.issuerDataSignature, fieldConverter.byteArray(from.issuerDataSignature)),
+                TextItem(ReadIssuerDataId.issuerData, fieldConverter.byteArrayToString(from.issuerData)),
+                TextItem(ReadIssuerDataId.issuerDataSignature, fieldConverter.byteArrayToHex(from.issuerDataSignature)),
                 TextItem(ReadIssuerDataId.issuerDataCounter, valueToString(from.issuerDataCounter))
         )
     }
@@ -63,8 +63,8 @@ class ReadIssuerExtraDataResponseConverter : BaseResponseConverter<ReadIssuerExt
         return listOf(
                 TextItem(ReadIssuerExtraDataId.cid, from.cardId),
                 TextItem(ReadIssuerExtraDataId.size, valueToString(from.size)),
-                TextItem(ReadIssuerExtraDataId.issuerData, fieldConverter.byteArray(from.issuerData)),
-                TextItem(ReadIssuerExtraDataId.issuerDataSignature, fieldConverter.byteArray(from.issuerDataSignature)),
+                TextItem(ReadIssuerExtraDataId.issuerData, fieldConverter.byteArrayToString(from.issuerData)),
+                TextItem(ReadIssuerExtraDataId.issuerDataSignature, fieldConverter.byteArrayToHex(from.issuerDataSignature)),
                 TextItem(ReadIssuerExtraDataId.issuerDataCounter, valueToString(from.issuerDataCounter))
         )
     }
@@ -82,8 +82,8 @@ class ReadUserDataResponseConverter : BaseResponseConverter<ReadUserDataResponse
     override fun convert(from: ReadUserDataResponse): List<Item> {
         return listOf(
                 TextItem(ReadUserDataId.cid, from.cardId),
-                TextItem(ReadUserDataId.userData, fieldConverter.byteArray(from.userData)),
-                TextItem(ReadUserDataId.userProtectedData, fieldConverter.byteArray(from.userProtectedData)),
+                TextItem(ReadUserDataId.userData, fieldConverter.byteArrayToString(from.userData)),
+                TextItem(ReadUserDataId.userProtectedData, fieldConverter.byteArrayToString(from.userProtectedData)),
                 TextItem(ReadUserDataId.userCounter, valueToString(from.userCounter)),
                 TextItem(ReadUserDataId.userProtectedCounter, valueToString(from.userProtectedCounter))
         )