B??c 1. Ng??i ch?i v?n l?a ch?n link ?? truy c?p an toàn t?o ?i?u ki?n các b??c sau th?c Hello?n nhanh chóng.B??c 2: M? ph?n “Ti?n ích” trong “Cài ??t Iphone” ho?c Ipad, tùy theo thi?t b? b?n s? d?ng.Other factors, like line outages and sags or the starting and halting of a motor, may cause intermittent events causing devices shutdown