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Hello all ! Someone gave me an iPhone 6 on iOS 11.3.1. On this iPhone 6 everything works just perfect except the sound during calls. When i call someone, he can’t hear me and i can’t hear him (even in speaker mode). Also the head-speaker and the micro are good. I have tested them with the voice memos. I have also noticed that when someone call me even after i hangout the phone keep vibrating . I have no problems with jack plug (i have tested it with an app). I have downloaded a new firmware on Internet and flashed it with iTunes. It still don’t work. Can you help me ?
Nodody to help me ? :/
