My SL7550 will start to vibrate if it's left untouched for 5-10 minutes. I am not sure what setting is controlling this but I'd like to switch it off. No messages display on the screen when this happens so it's not being caused by a missed call or message.

I had a bad feeling that a new board may be in order. Oh well.

I just acquired a Motorola XPR7550 and have noticed that anytime sound comes through the speaker there is a noticeable click or pop sound from the speaker. I connected a speaker mic to the radio and the same sound comes out of the speaker mic so this tells me that it's not the speaker in the radio. ...