i just want to say i am a level 3 technician you can ask anything .
回答“Back Camera not working after screen replacement?”change camera if not work then make jumper on camera ic
回答“iPhone 5 won't activate after factory reset”check first your imei is there if not you cant activate please give base band 15s heat and also resold sim reader interface after everything will be ok best of luck asad
回答“iPhone 4S - Error 9 when restoring firmware”give heat to wifi ic
回答“iTunes Error 53 - Please help!”Hijust remove whole lcd just connect battery plug in cable and restore i did one