onServicesDiscovered status is 129 and connect unstable for BLE in Android

Question

I following the page Bluetooth Low Energy for developing in Android 4.3 for Bluetooth Low Energy I try connect BLE device by following code: ``` public void connect(final String address) { // TODO Auto-generated method stub Log.w(TAG, "BluetoothLeService Connect function."); if(mBluetoothAdapter == null || address == null){ Log.w(TAG, "BluetoothAdapter not initialized or unspecified address."); } final BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address); mBluetoothGatt = device.connectGatt(this, true, mGattCallback); } ``` After connect to the BLE device , it will discover the Service by `mBluetoothGatt.discoverServices();` like the following code. ``` private final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() { public void onConnectionStateChange(android.bluetooth.BluetoothGatt gatt, int status, int newState) { if(mBluetoothGatt == null){ Log.e(TAG, "mBluetoothGatt not created!"); return; } device = gatt.getDevice(); address = device.getAddress();…

Accepted Answer

I faced the same problem, then I restarted bluetooth. After the restart I, got this status error.

The following worked for me. Here's the code in Bluetooth service:

```
        @Override
        public void onServicesDiscovered(BluetoothGatt gatt, int status) {

if (status != 0) {
                mBluetoothAdapter.disable();

Timer single_timer = new Timer();
        single_timer.schedule(new TimerTask() {
            @Override
            public void run() {
                mBluetoothAdapter.enable();
            }
        }, 1000);

Timer second_timer = new Timer();
        second_timer.schedule(new TimerTask() {
            @Override
            public void run() {
                gattServiceIntent = new Intent(context, BluetoothLeService.class);
                bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE);
                mBluetoothLeService.initialize();
                mBluetoothLeService.connect(mDeviceAddress);
                //maybe you need wait 0.5-1 second to call connect() after called initialize()
            }
        }, 2000);

Log.e(TAG, "An error code get at onServicesDiscovered= " + status);
            }
            if (status == BluetoothGatt.GATT_SUCCESS) {
                broadcastUpdate(ACTION_GATT_SERVICES_DISCOVERED);
            } else {
                Log.w(TAG, "onServicesDiscovered received: " + status);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                mBluetoothGatt.discoverServices();
            }
        }
```

onServicesDiscovered status is 129 and connect unstable for BLE in Android

Solution

Problem