Version SW & HW: *#300# OK
Full KeyTest: *#301# OK
Set Language to English: *#303# OK
Set OFF engineering mode: *#304# OK
Set ON engineering mode: #304*19980722# OK
Engineering Test mode: *#307# OK
Phone changed to default code: *#311# OK
ADC, Cal val*: *#400# OK
Adjust Display Intensity /Contrast *#402# OK
List the Manufacturing Informations: *#403# OK
Master Unlock code for Phone anh Sim lock: 19980722
Acoustic Test* *#302 OK
P2K Models
Version SW & HW: *#9999#
Flash Mode: * + # + Power
Enter NCK Mode: [/b] Put sim card no accepted anh whait 30 mn [/b]
Old Models
EFR ON: *3370#
EFR OFF: 70#
Confirm ?, Data saver: *#72837726# OK
Phone code default: 1234 OK
Setting saved, restore set phone do default language: *#0000#
Display lock code: 59#
Change lock code: 59#xxx#
Display Security Code: 58#
Change Security Code: 58#xxx#
Display Modem S/W version: 20#
Flex version : #02# ( Không kèm sim
