Chosen Solution

I bought a brand new amplifier and plugged in my Galaxy Note 3 as input using the jack port. Since then my phone has multiple issues, but the amplifier works with other devices. Maybe a short high voltage broke something ? Here are the issues :

  • no sound at all coming from earpiece (loudspeaker works)
  • distorted sound or no sound at all when using the headphones jack. Sound is less distorted when volume is at the max level
  • headphones jack will only output sound for the right channel I tried replacing the headphone jack part with a replacement that i bought on Aliexpress but it didn’t work (no sound at all, even from the right channel). So i thought that maybe the issue is with the main board ? Or was my replacement part already faulty ? Should i try again another replacement of the jack ? Edit: headphones, amp and cable work with other devices without issues. Jack plug is clean with no dust in it. I already tried every obvious solution.

Have you tried a different set of headphones ?May not be the jack it could be the headphones . Are you sure the jack is all the way in and that a case is not keeping it from going in all the way

Alright, here is some step u can do :

  1. Did u try to change input cable (phone to amp) ?
  2. Did u try to plug output jack to speaker or any other earphone, is it working stereo?
  3. What is ur amp? is it still waranty, if yes you can claim for warranty before you open it.
  4. If your warranty is gone, you can open the amplifier, then you check the connection between input and output. Thanks.