Ma so bi mat motorola

*#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.

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