CoreMotion-DeviceMotion not available on iPad 3

Question

I have this strange problem. In my app I'm asking the device, if DeviceMotion is available:

if (coreMotionManager.isDeviceMotionAvailable) {

    coreMotionManager.deviceMotionUpdateInterval = 1.0 / 60.0;
    [coreMotionManager startDeviceMotionUpdates];

    [NSTimer scheduledTimerWithTimeInterval:1.0 / 60.0 target:self selector:@selector(didUpdateCoreMotion) userInfo:nil repeats:YES];
}
else {
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"NO DEVICE MOTION" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
    [alert show];
}

but it's always false... What am I doing wrong? I'm doing this on my iPad 3 and I already played around with CMMotionManager in the past and with it's .deviceMotion.attitude.roll, pitch and yaw and everything was just fine. But now I just always get alert o.O

Does anyone have an idea what can be wrong? Thx very much for any help :)

Finally restarting my Mac helped, after restart it all just worked! :) Thanks Kay for sticking around and help :)

Answer 1

Finally restarting my Mac helped, after restart it all just worked! :) Thanks Kay for sticking around and help :)

Answer 2

Reset your IPad. I have had this happen to me before on an ipad 2 and an ipad 3. The device just refuses to give attitude to me. I'm guessing it is because the internal gyro gets out of whack and needs to be reset.