My A33 was dropped..a few times. After the 3rd accident, sound cuts in/out sporadically with the speaker stationary. I might need to go deep inside to check out connections (power on indicator never waivers and Bluetooth connectivity appears solid). I’ve tried shaking it while playing some tunes and that doesn’t make a difference. Ideas on what the problem may be? Is it possible to fully disassemble to check the circuit boards?