De hack GPRS mang Viettel cac ban hay lay mot sim chua dang ki GPRS lan nao ca.Cac ban lay sim do goi toi mot so khac tu 10 den 15 lan nhung khong de bat may.Tiep theo cac ban soan GPRS ON --> 191 khoang 10 lan nhung khong duoc soan YES --> 191.Khi da thuc hien day du cac buoc tren cac ban len trang wed cua viettel de dang ki GPRS nha.Ti le thanh cong khoang 35%.Neu co dieu gi thac mac hoac gop y cho BQT ban vui long goi dien vao duong day nong cua wapsite.Chunng toi luon lang nghe nhung dieu ban noi.Xin tran thanh cam on luon lang nghe nhung dieu ban noi.Xin tran thanh cam on

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