BlackBerry 9900 Mic Not Working Jumpers
https://gsmfixer.blogspot.com/2015/10/blackberry-9900-mic-not-working-jumpers.html
BlackBerry 9900 Mic Problem Solution with The Help of Jumpers with Hardware repairing diagram solution. In this diagram you will see solution of BlackBerry 9900 Mic not working problem with jumper ways. Please clean the board and try replacing the mic with working one if not working then apply this jumpers solution.
