cho minh hoi chut :
May minh bi lock do so y update len itune 8.0,hien gio ban iphone hien tai la 2.0.2,lieu minh co the thuc hien cac buoc tren trong tinh trang may bi lock ko?Hay bat buoc phai downgrade may xuong 1.1.4 moi up nguoc lai len duoc?****
Cám Æ¡n nhiá»u
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