The toughest faults to uncover are those that materialize only Every so often—intermittent gatherings. They may be brought on by negative connections, dust, dirt, corrosion or simply damaged wiring or connectors.B??c two: M? ph?n “Ti?n ích” trong “Cài ??t Iphone” ho?c Ipad, tùy theo thi?t b? b?n s? d?ng.V?i t? l? th?ng c?c k? t??i sán