diff --git a/src/android/CHIPTool/app/src/main/java/com/google/chip/chiptool/bluetooth/BluetoothManager.kt b/src/android/CHIPTool/app/src/main/java/com/google/chip/chiptool/bluetooth/BluetoothManager.kt
index f85caa46971ac2..a40e92f5ee4ffd 100644
--- a/src/android/CHIPTool/app/src/main/java/com/google/chip/chiptool/bluetooth/BluetoothManager.kt
+++ b/src/android/CHIPTool/app/src/main/java/com/google/chip/chiptool/bluetooth/BluetoothManager.kt
@@ -130,7 +130,7 @@ class BluetoothManager : BleCallback {
         wrappedCallback.onServicesDiscovered(gatt, status)
 
         Log.i("$TAG|onServicesDiscovered", "Services Discovered")
-        gatt?.requestMtu(131);
+        gatt?.requestMtu(247);
       }
 
       override fun onMtuChanged(gatt: BluetoothGatt?, mtu: Int, status: Int) {
diff --git a/src/ble/BLEEndPoint.cpp b/src/ble/BLEEndPoint.cpp
index 4ded12bba8bc43..814c1a9ade7d74 100644
--- a/src/ble/BLEEndPoint.cpp
+++ b/src/ble/BLEEndPoint.cpp
@@ -1112,18 +1112,13 @@ CHIP_ERROR BLEEndPoint::HandleCapabilitiesRequestReceived(PacketBufferHandle &&
                      CHIP_BLE_TRANSPORT_PROTOCOL_MIN_SUPPORTED_VERSION, CHIP_BLE_TRANSPORT_PROTOCOL_MAX_SUPPORTED_VERSION);
         mState = kState_Aborting;
     }
-    else if ((resp.mSelectedProtocolVersion == kBleTransportProtocolVersion_V1) ||
-             (resp.mSelectedProtocolVersion == kBleTransportProtocolVersion_V2))
+    else
     {
         // Set Rx and Tx fragment sizes to the same value
         mBtpEngine.SetRxFragmentSize(resp.mFragmentSize);
         mBtpEngine.SetTxFragmentSize(resp.mFragmentSize);
     }
-    else // resp.SelectedProtocolVersion >= kBleTransportProtocolVersion_V3
-    {
-        // This is the peripheral, so set Rx fragment size, and leave Tx at default
-        mBtpEngine.SetRxFragmentSize(resp.mFragmentSize);
-    }
+
     ChipLogProgress(Ble, "using BTP fragment sizes rx %d / tx %d.", mBtpEngine.GetRxFragmentSize(), mBtpEngine.GetTxFragmentSize());
 
     ReturnErrorOnFailure(resp.Encode(responseBuf));
@@ -1158,17 +1153,9 @@ CHIP_ERROR BLEEndPoint::HandleCapabilitiesResponseReceived(PacketBufferHandle &&
     // Set fragment size as minimum of (reported ATT MTU, BTP characteristic size)
     resp.mFragmentSize = chip::min(resp.mFragmentSize, BtpEngine::sMaxFragmentSize);
 
-    if ((resp.mSelectedProtocolVersion == kBleTransportProtocolVersion_V1) ||
-        (resp.mSelectedProtocolVersion == kBleTransportProtocolVersion_V2))
-    {
-        mBtpEngine.SetRxFragmentSize(resp.mFragmentSize);
-        mBtpEngine.SetTxFragmentSize(resp.mFragmentSize);
-    }
-    else // resp.SelectedProtocolVersion >= kBleTransportProtocolVersion_V3
-    {
-        // This is the central, so set Tx fragement size, and leave Rx at default.
-        mBtpEngine.SetTxFragmentSize(resp.mFragmentSize);
-    }
+    mBtpEngine.SetRxFragmentSize(resp.mFragmentSize);
+    mBtpEngine.SetTxFragmentSize(resp.mFragmentSize);
+
     ChipLogProgress(Ble, "using BTP fragment sizes rx %d / tx %d.", mBtpEngine.GetRxFragmentSize(), mBtpEngine.GetTxFragmentSize());
 
     // Select local and remote max receive window size based on local resources available for both incoming indications
diff --git a/src/ble/BleConfig.h b/src/ble/BleConfig.h
index a77da1f6d67a1a..70340bfff0cfe5 100644
--- a/src/ble/BleConfig.h
+++ b/src/ble/BleConfig.h
@@ -165,7 +165,7 @@
  *
  */
 #ifndef BLE_MAX_RECEIVE_WINDOW_SIZE
-#define BLE_MAX_RECEIVE_WINDOW_SIZE                            3
+#define BLE_MAX_RECEIVE_WINDOW_SIZE 6
 #endif
 
 #if (BLE_MAX_RECEIVE_WINDOW_SIZE < 3)
@@ -180,7 +180,7 @@
  *
  */
 #ifndef BLE_CONFIG_ERROR_MIN
-#define BLE_CONFIG_ERROR_MIN                               6000
+#define BLE_CONFIG_ERROR_MIN 6000
 #endif // BLE_CONFIG_ERROR_MIN
 
 /**
@@ -191,7 +191,7 @@
  *
  */
 #ifndef BLE_CONFIG_ERROR_MAX
-#define BLE_CONFIG_ERROR_MAX                               6999
+#define BLE_CONFIG_ERROR_MAX 6999
 #endif // BLE_CONFIG_ERROR_MAX
 
 /**
@@ -203,7 +203,7 @@
  *
  */
 #ifndef BLE_CONFIG_ERROR
-#define BLE_CONFIG_ERROR(e)                               (BLE_CONFIG_ERROR_MIN + (e))
+#define BLE_CONFIG_ERROR(e) (BLE_CONFIG_ERROR_MIN + (e))
 #endif // BLE_CONFIG_ERROR
 
 // clang-format on
diff --git a/src/ble/BleLayer.cpp b/src/ble/BleLayer.cpp
index 5855985ae5c97e..e927e99df7f7fb 100644
--- a/src/ble/BleLayer.cpp
+++ b/src/ble/BleLayer.cpp
@@ -67,8 +67,8 @@
 #include <lib/support/logging/CHIPLogging.h>
 
 // Magic values expected in first 2 bytes of valid BLE transport capabilities request or response:
-#define CAPABILITIES_MSG_CHECK_BYTE_1 'n'
-#define CAPABILITIES_MSG_CHECK_BYTE_2 'l'
+#define CAPABILITIES_MSG_CHECK_BYTE_1 0b01100101
+#define CAPABILITIES_MSG_CHECK_BYTE_2 0b01101100
 
 namespace chip {
 namespace Ble {
diff --git a/src/ble/BleLayer.h b/src/ble/BleLayer.h
index d9df92b3a6f7ff..efe27033d8618f 100644
--- a/src/ble/BleLayer.h
+++ b/src/ble/BleLayer.h
@@ -77,8 +77,8 @@ namespace Ble {
  */
 #define NUM_SUPPORTED_PROTOCOL_VERSIONS 8
 /// Version(s) of the CHIP BLE Transport Protocol that this stack supports.
-#define CHIP_BLE_TRANSPORT_PROTOCOL_MIN_SUPPORTED_VERSION kBleTransportProtocolVersion_V2
-#define CHIP_BLE_TRANSPORT_PROTOCOL_MAX_SUPPORTED_VERSION kBleTransportProtocolVersion_V3
+#define CHIP_BLE_TRANSPORT_PROTOCOL_MIN_SUPPORTED_VERSION kBleTransportProtocolVersion_V4
+#define CHIP_BLE_TRANSPORT_PROTOCOL_MAX_SUPPORTED_VERSION kBleTransportProtocolVersion_V4
 
 /// Forward declarations.
 class BleLayer;
@@ -88,9 +88,7 @@ class BLEEndPoint;
 typedef enum
 {
     kBleTransportProtocolVersion_None = 0,
-    kBleTransportProtocolVersion_V1   = 1, // Prototype BTP version without ACKs or flow-control.
-    kBleTransportProtocolVersion_V2   = 2, // First BTP version with ACKs and flow-control.
-    kBleTransportProtocolVersion_V3   = 3  // First BTP version with asymetric fragement sizes.
+    kBleTransportProtocolVersion_V4   = 4 // BTP as defined by CHIP v1.0
 } BleTransportProtocolVersion;
 
 constexpr size_t kCapabilitiesRequestMagicnumLength          = 2;
diff --git a/src/ble/BtpEngine.cpp b/src/ble/BtpEngine.cpp
index 6c5e561b96ad3b..65b0f5dad3b44e 100644
--- a/src/ble/BtpEngine.cpp
+++ b/src/ble/BtpEngine.cpp
@@ -74,7 +74,7 @@ static void PrintBufDebug(const System::PacketBufferHandle & buf)
 }
 
 const uint16_t BtpEngine::sDefaultFragmentSize = 20;  // 23-byte minimum ATT_MTU - 3 bytes for ATT operation header
-const uint16_t BtpEngine::sMaxFragmentSize     = 128; // Size of write and indication characteristics
+const uint16_t BtpEngine::sMaxFragmentSize     = 244; // Maximum size of BTP segment
 
 CHIP_ERROR BtpEngine::Init(void * an_app_state, bool expect_first_ack)
 {