ABSensor 401 - Can't get data from accelerometer, notifyABAcceleration() never called

Hello everyone.

I am working with AprilBrother-Android-SDK Demo project.
Lib version: 1.6.1

Code:

conn = new AprilBeaconConnection(this, beacon);
conn.connectGattToWrite(new MyWriteCallback() {

                                @Override
				public void notifyABAcceleration(ABAcceleration abAcceleration) {
					Log.i(TAG, "-----------------");
					Log.i(TAG, " x = " + abAcceleration.getX());
					Log.i(TAG, " y = " + abAcceleration.getY());
					Log.i(TAG, " z = " + abAcceleration.getZ());

					tv_ac_x.setText(abAcceleration.getX() + "");
					tv_ac_y.setText(abAcceleration.getY() + "");
					tv_ac_z.setText(abAcceleration.getZ() + "");
					super.notifyABAcceleration(abAcceleration);
				} }, BEACON_PASSWORD);

Beacon’s firmware: 2.2a
hardware: 1.4a

How can i get data from beacon’s accelerometer ?

Thanks!

http://wiki.aprbrother.com/wiki/ABSensor401_User_Guide
you should make the sensor can be connect