Most common problem with iPhone 4 is mic problem. Here are some diagram are given to help you solve this problem. Best solution is to change the mic. but in many cases, it is useless. So, see these diagram and solve this problem.
If you are failed to solve this problem, please let us know in comments. We will try our best to provide another solution.
2 comments
commentswhere is i phone 5 audio ic . please help me my iPhone audio didnt work during call . no incoming or out going audio even i tried headphone but same problem. but when i cut the phone call it works normally . no audio during call. email me. santwo.bhat@gmail.com
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