During a call, the other person can't hear me
During a phone call on my iPhone 4, the other party can't hear me but I can hear them perfectly.
Voice memos work perfectly and everything else on the phone works perfectly, except for this.
I guess the mic is not the problem, since voice memos work fine.
Maybe Gevey sim is the problem?
Please help, thanks.
I'm sorry to tell but it is 99% sure that your 'audio compiler ic' is the issue. This is the IC which performs the noise cancellation. It is only active during calls and not during memo recording...
Reballing this IC is 99% gonna solve your problem. However this requires special tools and good knowledge to be perfomed...