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hey all. 2nd time i come across this on iPhone 6 this week. very very low call volume. i reset the phone just to make sure. i changed the earpiece with no success and also the top earpiece. still call volume is very low. please advise! thanks a ton.

Have you tried restoring the phone?

Hi Kindly Replace the front ear speaker filters in that might be dust ll be covered and you Cant Hear Full Voice so Please Change the filter Hope it Works Thanks Varun

Driving me nuts. It can’t be dirty coz it’s a new screen and new ear piece. Unfortunately I am From Australia and we don’t have the luxury of buying from ifixit

Make sure the front camera flex is properly seated. I have seen with the 5 series that causing very quiet and poor quality sound.

I have 3 6’s doing this exact thing. I have replaced and swapped out speakers with known good speakers as well as brand new speakers purchased from ifixit. I have dont screen swaps before with out this being an issue so dont believe its the camera flex cables. Any other ideas as this seems to be something else.