The hardest faults to discover are people who occur only Every so often—intermittent occasions. They may be a result of poor connections, dust, Grime, corrosion or simply damaged wiring or connectors. Gi?i m?i (bao g?m t?t c? gi?i nào có s? thay ??i, c?p nh?t m?i ho?c ?i?u ch?nh)B??c 2: M? ph?n “Ti?n ích” trong “Cài ??t Apple iphone”