GSM-Forum - View Single Post - iPhone 7 no sound during the call (ic replaced!)

krisszmix · 10-28-2019, 00:01

Helo All !
I have a special problem, with an iphone 7.
Every speaker is working, i hear the ring, i hear the dial sound. No grey icon !

But if i get a call, no sound any speaker. Just in the call time. When the call period is end, the sounds come back.

I reballed the audio ic, i replaced twice! I reballed the two audio amplifier ic (U3402/U3502). Nothing change. I check any ic pads !

I do not have "loop disease" problem, and i do not have Gray call icon problem.
I check another Main Flex cable, but nothing change.
I put the motherboard, an another good housing, but nothing change.
I repaired many iphone 7 audio ic, but i do not heard this problem.

Can anybody give me an good idea ?

10-28-2019, 00:01	#1 (permalink)
krisszmix Junior Member Join Date: Jun 2010 Posts: 16 Member: 1319762 Status: Offline Sonork: krisszmix Thanks Meter: 2	iPhone 7 no sound during the call (ic replaced!) Helo All ! I have a special problem, with an iphone 7. Every speaker is working, i hear the ring, i hear the dial sound. No grey icon ! But if i get a call, no sound any speaker. Just in the call time. When the call period is end, the sounds come back. I reballed the audio ic, i replaced twice! I reballed the two audio amplifier ic (U3402/U3502). Nothing change. I check any ic pads ! I do not have "loop disease" problem, and i do not have Gray call icon problem. I check another Main Flex cable, but nothing change. I put the motherboard, an another good housing, but nothing change. I repaired many iphone 7 audio ic, but i do not heard this problem. Can anybody give me an good idea ?