- S/W Version Check : *#1234#
- HW Version Check: *#197328640# -> [2]Version information -> [2]HW_VER,Rf_cal_date -> [1]Read HW VER
- Factory Reset : *2767*3855#
- IMEI Check : *#06#
- LCD test mode: *#0*#
- Self-test: *#7353#
- Battery Information: *#197328640# -> [6]Common -> [1]Batt,Temp
- Loop back test: *#0283#
- Display IMEI *#06#
