B??c three. ??i th?i gian ng?n ?ng d?ng hoàn t?t t?i xu?ng anh em ch?n cài ??t vào thi?t b?. ??ng th?i xác minh m?c ?? “tin c?y” hay không sau khi t?i application ?? thông báo v?i thi?t b?. The hardest faults to search out are those that materialize only once in a while—intermittent gatherings. They may be caused by poor connections,