*#002# :Restore factory default it will wash security code too
**04*# :Network selection
*#1830*# :Engineer mode
*#6495*# :Factory Mode
*#82510# :Auto Test
*#18*# :Auto Test
*#64*# :Version info summery
*#88# :Self test
*#3696# :Open/Close USB mode
*#11# :Start record screen
*#21# :play list
*#005# :Start trace memory card
*#006# : Start trace memory card