BlackBerry 9720 Speaker Ringer Jumper Solution
https://gsmfixer.blogspot.com/2015/09/blackberry-9720-speaker-ringer-jumper.html
BlackBerry 9720 Speaker Ringer Problem May Occur due to the Faulty Speaker or Ringer so Replace it With a New Working On and Check The problem is Solved or not. Please wash the board motherboard with thinner or CTC and give some heat with heat Gun to ensure that there is not water damage. If the Problem is not solved by replacing the speaker then you can apply these jumpers to solve BlackBerry 9720 speaker ringer problem easily.