In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.

Whenever I turn my sound bar on, it pops and immediately turns off. It tries to restart itself but it continues to pop loudly and turn off. I have a Pioneer SP-SB23W. I took it apart and I don't see any connection issues or blow capacitors. What could cause this?
My Nokia E5 phone has stopped vibrating. I switched my phone off and then turned it on and still it doesn't vibrate. What may be wrong with it?