Mã số bí mật Motorola

1. *#300#ok : xem phien ban phan mem.
2. *#301#ok : kiem tra ban phim.
3. *#303#ok : chuyen sang tieng Anh.
4. *#304*19980722#ok : bat Engineering mode.
5. *#304#ok : tat Engineering mode.
6. *#307#ok : kiem tra Engineering mode.
7. *#311#ok : doi code mac dinh cua may.
8. *#400#ok : ADC, CAL, VAL (???).
9. *#402#ok : chinh do tuong phan.
10. *#403#ok : thong tin nha san xuat.
11. *#302#ok : kiem tra Acoustic.
12. *#19980722#ok : quan ly mat khau.