Hack 4G Viettel Vina Mobi

HOTCh 10k/thng thay v 90k hay 120k c ngay 4G tc cao khng gii hn. #4GViettel #4GVinaphoneCam kt mng full bng thng tc cao tha thch xem phim lt youtube,tiktok,facebook... m khng phi lo ht data 4G.