diff --git a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/BleSessionManager.kt b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/BleSessionManager.kt
index 2b06489..d684322 100644
--- a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/BleSessionManager.kt
+++ b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/BleSessionManager.kt
@@ -45,7 +45,8 @@ public class BLESessionManager {
                     "BLE",
                     "Central",
                     sessionData.bleIdent.toByteArray(),
-                    ::updateRequestData
+                    ::updateRequestData,
+                    callback
                 )
             this.callback.update(mapOf(Pair("engagingQRCode", sessionData.qrCodeUri)))
         } catch (e: Error) {
@@ -87,7 +88,6 @@ public class BLESessionManager {
             val signatureData = submitSignature(this.sessionManager!!, signature)
             this.state = signatureData.state
             this.bleManager!!.send(signatureData.response)
-            this.callback.update(mapOf(Pair("success", "")))
         } catch (e: Error) {
             Log.e("CredentialsViewModel.submitNamespaces", e.toString())
             this.callback.update(mapOf(Pair("error", e.toString())))
diff --git a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/GattClient.kt b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/GattClient.kt
index 4e89508..b6002a1 100644
--- a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/GattClient.kt
+++ b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/GattClient.kt
@@ -383,11 +383,6 @@ class GattClient(private var callback: GattClientCallback,
             val descriptor: BluetoothGattDescriptor =
                 characteristicServer2Client!!.getDescriptor(clientCharacteristicConfigUuid)
 
-            if (descriptor == null) {
-                callback.onError(Error("Error getting Server2Client clientCharacteristicConfig desc."))
-                return
-            }
-
             descriptor.value = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE
 
             if (!gatt.writeDescriptor(descriptor)) {
diff --git a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/Transport.kt b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/Transport.kt
index d5199ca..a9e1362 100644
--- a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/Transport.kt
+++ b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/Transport.kt
@@ -22,6 +22,7 @@ class Transport(private var bluetoothManager: BluetoothManager) {
         deviceRetrievalOption: String,
         ident: ByteArray,
         updateRequestData: (data: ByteArray) -> Unit,
+        callback: BLESessionStateDelegate
     ) {
 
         /**
@@ -41,6 +42,7 @@ class Transport(private var bluetoothManager: BluetoothManager) {
                 deviceRetrievalOption,
                 ident,
                 updateRequestData,
+                callback
             )
         }
 
diff --git a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/TransportBle.kt b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/TransportBle.kt
index e6bfd9a..3208237 100644
--- a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/TransportBle.kt
+++ b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/TransportBle.kt
@@ -30,6 +30,7 @@ class TransportBle(private var bluetoothManager: BluetoothManager) {
         application: String, serviceUUID: UUID,
         deviceRetrievalOption: String, ident: ByteArray,
         updateRequestData: (data: ByteArray) -> Unit,
+        callback: BLESessionStateDelegate
     ) {
 
         /**
@@ -43,6 +44,7 @@ class TransportBle(private var bluetoothManager: BluetoothManager) {
                 bluetoothManager,
                 serviceUUID,
                 updateRequestData,
+                callback,
             )
             transportBleCentralClientHolder.connect(ident)
         }
diff --git a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/TransportBleCentralClientHolder.kt b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/TransportBleCentralClientHolder.kt
index 11fb3c7..914d2ec 100644
--- a/WalletSdk/src/main/java/com/spruceid/wallet/sdk/TransportBleCentralClientHolder.kt
+++ b/WalletSdk/src/main/java/com/spruceid/wallet/sdk/TransportBleCentralClientHolder.kt
@@ -17,6 +17,7 @@ class TransportBleCentralClientHolder(
     private var bluetoothManager: BluetoothManager,
     private var serviceUUID: UUID,
     private var updateRequestData: (data: ByteArray) -> Unit,
+    private var callback: BLESessionStateDelegate,
 ) : Activity() {
 
     private var context: Context = this
@@ -94,6 +95,8 @@ class TransportBleCentralClientHolder(
                     "TransportBleCentralClientHolder.gattClientCallback.onMessageSendProgress",
                     "progress: $progress max: $max"
                 )
+
+                callback.update(mapOf(Pair("progress", mapOf(Pair("curr", progress), Pair("max", max)))))
             }
 
             override fun onMessageReceived(data: ByteArray) {