*#06# Xem IMEI.
*#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 (Tui hok biet cai nay)
*#402# OK Chinh do tuong phan man hinh.
*#403# OK Thong tin tu nha san xuat.
19980722 Quan ly mat khau.
*#302 OK Kiem tra Acoustic

SONY ERICSSON

*#06# Xem IMEI.

> * < < * < * Xem MENU an. (<: sang trai, >: sang phai)
*#7353273# Kiem tra phien ban phan mem( phai rut SIM ra moi lam duoc)

TRUNG QUOC

*#06# Xem IMEI
*#66*# Mo menu an.
*#3646633# Mo menu kiem tra loi.

Thay doi ngon ngu:*#0000# OK: tieng Anh, *#0086# OK: tieng Tau,
*#0084# OK: tieng Viet