If I carry out write operations,it means send data from phone to BLE. ClientConfig.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE) can't run,and the app will stop. When I writes,should it call setCharacteristicnotification? Besides,when I write,oncharacteristicwrite staus= 133.I don't understand write very good.This is my code.If I carry out write operations,it means send d