diff --git a/app/src/main/java/com/tangem/tap/common/chat/opener/implementation/ZendeskChatOpener.kt b/app/src/main/java/com/tangem/tap/common/chat/opener/implementation/ZendeskChatOpener.kt
index 1c6198806c..a65749ce62 100644
--- a/app/src/main/java/com/tangem/tap/common/chat/opener/implementation/ZendeskChatOpener.kt
+++ b/app/src/main/java/com/tangem/tap/common/chat/opener/implementation/ZendeskChatOpener.kt
@@ -22,6 +22,7 @@ internal class ZendeskChatOpener(
 ) : ChatOpener {
 
     private var isInitialized = false
+    private var isFilesSent = false
 
     override fun open(createFeedbackFile: (Context) -> File?, createLogsFile: (Context) -> File?) {
         foregroundActivityObserver.withForegroundActivity { activity ->
@@ -49,18 +50,20 @@ internal class ZendeskChatOpener(
     }
 
     private fun sendFeedbackFile(feedbackFile: File?) {
-        if (isInitialized && feedbackFile != null) {
+        if (isInitialized && feedbackFile != null && !isFilesSent) {
             Chat.INSTANCE.providers()?.chatProvider()?.sendFile(feedbackFile) { _, bytesUploaded, _ ->
                 Timber.d("Log file sent", "bytesUploaded: $bytesUploaded")
             }
+            isFilesSent = true
         }
     }
 
     private fun sendLogsFile(logsFile: File?) {
-        if (isInitialized && logsFile != null) {
+        if (isInitialized && logsFile != null && !isFilesSent) {
             Chat.INSTANCE.providers()?.chatProvider()?.sendFile(logsFile) { _, bytesUploaded, _ ->
                 Timber.d("Log file sent", "bytesUploaded: $bytesUploaded")
             }
+            isFilesSent = true
         }
     }
 
diff --git a/app/src/main/java/com/tangem/tap/common/feedback/FeedbackManager.kt b/app/src/main/java/com/tangem/tap/common/feedback/FeedbackManager.kt
index c1e9ae43b1..83a14893d8 100644
--- a/app/src/main/java/com/tangem/tap/common/feedback/FeedbackManager.kt
+++ b/app/src/main/java/com/tangem/tap/common/feedback/FeedbackManager.kt
@@ -63,8 +63,12 @@ class FeedbackManager(
             fileWriter.write(feedback)
             fileWriter.close()
 
-            sessionFeedbackFile = file
-            sessionFeedbackFile
+            if (file.exists()) {
+                sessionFeedbackFile = file
+                sessionFeedbackFile
+            } else {
+                null
+            }
         } catch (ex: Exception) {
             Timber.e(ex, "Can't create the logs file")
             null
@@ -86,8 +90,12 @@ class FeedbackManager(
             fileWriter.write(stringWriter.toString())
             fileWriter.close()
             logCollector.clearLogs()
-            sessionLogsFile = file
-            sessionLogsFile
+            if (file.exists()) {
+                sessionLogsFile = file
+                sessionLogsFile
+            } else {
+                null
+            }
         } catch (ex: Exception) {
             Timber.e(ex, "Can't create the logs file")
             null
diff --git a/data/card/src/main/java/com/tangem/data/card/sdk/DefaultCardSdkProvider.kt b/data/card/src/main/java/com/tangem/data/card/sdk/DefaultCardSdkProvider.kt
index dddff7e3da..a66fca3546 100644
--- a/data/card/src/main/java/com/tangem/data/card/sdk/DefaultCardSdkProvider.kt
+++ b/data/card/src/main/java/com/tangem/data/card/sdk/DefaultCardSdkProvider.kt
@@ -38,7 +38,7 @@ internal class DefaultCardSdkProvider @Inject constructor() : CardSdkProvider, C
             allowUntrustedCards = true,
             filter = CardFilter(
                 allowedCardTypes = FirmwareVersion.FirmwareType.values().toList(),
-                maxFirmwareVersion = FirmwareVersion(major = 4, minor = 52),
+                maxFirmwareVersion = FirmwareVersion(major = 6, minor = 21),
             ),
         )
     }
diff --git a/gradle/dependencies.toml b/gradle/dependencies.toml
index 0ef1abab1c..8f9dc6f917 100644
--- a/gradle/dependencies.toml
+++ b/gradle/dependencies.toml
@@ -80,7 +80,7 @@ okHttp-prettyLogging = "3.1.0"
 # endregion Other libraries
 
 # region Tangem
-tangemBlockchainSdk = "release-app_4.10-305"
+tangemBlockchainSdk = "release-app_4.10-310"
 #tangemBlockchainSdk = "0.0.1" # Keep it! - used for local builds
 tangemCardSdk = "release-app_4.10-281"
 #tangemCardSdk = "0.0.1" # Keep it! - used for local builds