Loud crackling static sound on iPhone 5 call?
I just bought myself a 2nd hand iPhone without checking it thoroughly enough. everythings perfect except when i tried to call. Theres this really loud crackling static sound heard by both me and the other party and we cant hear each other AT ALL. I own an iPhone 5, running ios7.1. I used voice record and that worked just fine. can play music too. even when i turn on the speaker theres the loud crackling/static sound. please help. ):
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