This is the configuration logic that failed with firmware 1.2.5

configurations.java

accel_module = board.getModule(Bmi160Accelerometer.class);
settings_module = board.getModule(Settings.class);
timerModule = board.getModule(com.mbientlab.metawear.module.Timer.class);

timerModule.scheduleTask(new com.mbientlab.metawear.module.Timer.Task() {
    @Override
    public void commands() {
        accel_module.disableAxisSampling();
    }
}, 3000, true).onComplete(new AsyncOperation.CompletionHandler<com.mbientlab.metawear.module.Timer.Controller>() {
    @Override
    public void success(final com.mbientlab.metawear.module.Timer.Controller result) {
        accel_module.routeData().fromMotion().monitor(new DataSignal.ActivityHandler() {
            @Override
            public void onSignalActive(Map<String, DataProcessor> map, DataSignal.DataToken dataToken) {
                result.start();
                accel_module.enableAxisSampling();
            }
        }).commit().onComplete(new AsyncOperation.CompletionHandler<RouteManager>() {
            @Override
            public void success(RouteManager result) {
                accel_module.configureAxisSampling()
                        .setOutputDataRate(Bmi160Accelerometer.OutputDataRate.ODR_12_5_HZ)
                        .commit();
                accel_module.routeData().fromAxes().log(SENSOR_DATA_LOG).commit().onComplete(accelHandler);
                accel_module.configureAnyMotionDetection().setThreshold(0.032f).commit();
                accel_module.enableMotionDetection(Bmi160Accelerometer.MotionType.ANY_MOTION);
                accel_module.startLowPower();
            }

            @Override
            public void failure(Throwable error) {
                error.printStackTrace();
            }
        });
    }

    @Override
    public void failure(Throwable error) {
        error.printStackTrace();
        connectionStage = Constants.STAGE.INIT;
    }
});