3 beeps means the camera just powered up. Either batt low or something else.
Xavier was professional to attend to me on suspection that the power magic n itb being faulty, but even after changing my itb n power magic it still powers down after parking for less than 1-2hrs (random). Thank u again.
Seeked his advice and tested the batt voltage after parking the car and waited for itb to shut down itself, batt was tested showing 12.3v so the batt was healthy.
Somehow I can only deduce like bm cars, the car will detect 3rd party devices and cut off power to such devices as a safety measure, so power magic or not the car will cut off power to such devices. Now prolly u notice seldom seeing dvrs installed on beemers