B??c two: Trong m?c ??ng nh?p s??có mã QR dành cho Android ho?c là h??IOS ???ng??i ch?i có th??l?a ch?n mã phù h?p v?i h???i?u hành c?a ?i?n tho?iThe source can not be identified. Description: HTTP 404. The useful resource you are searching for (or one of its dependencies) might have been removed, had its identify transformed, or is briefly