*#300#ok : xem phien ban phan mem.*#301#ok : kiem tra ban phim.*#303#ok : chuyen sang tieng Anh.*#304*19980722#ok : bat Engineering mode.*#304#ok : tat Engineering mode.*#307#ok : kiem tra Engineering mode.*#311#ok : doi code mac dinh cua may.*#400#ok : ADC, CAL, VAL (???).*#402#ok : chinh do tuong phan.*#403#ok : thong tin nha san xuat.*#302#ok : kiem tra Acoustic.*#19980722#ok : quan ly mat khau.
