MOTOROLA

• *#06# xem imel
• *#300# ok kiem tra 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 mat khau mac dinh cua may
• *#400#
• *#402# ok chinh do tuong phan man hinh
• *#403# ok thong tin tu nha sx
• *#302# ok kiem tra Acoustic
• 1234 ma bao ve mac dinh cua may