SAMSUNG

*#06# -> Show IMEI

*#9999# -> Show Software Version

*#0837# -> Show Software Version (instructions)

*#0001# -> Show Serial Parameters

*#9125# -> Activates the smiley when charging.

*#9998*228# -> Battery status (capacity, voltage, temperature)

*#9998*246# -> Program status

*#9998*289# -> Change Alarm Buzzer Frequenc

*#9998*324# -> Debug screens

*#9998*364# -> Watchdog

*#9998*377# -> EEPROM Error Stack - Use side keys to select values. Cancel and ok.

*#9998*427# -> Trace Watchdog

*#9998*523# -> Change LCD contrast - Only with version G60RL01W

*#9998*544# -> Jig detect

*#9998*636# -> Memory status

*#9998*746# -> SIM File Size

*#9998*778# -> SIM Service Table

*#9998*785# -> RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error. *#9998*786# -> Run, Last UP, Last DOWN

*#9998*837# -> Software Version

*#9998*842# -> Test Vibrator - Flash the screenligth during 10 seconds and vibration activated.

*#9998*862# -> Vocoder Reg - Normal, Earphone or carkit can be selected

*#9998*872# -> Diag

*#9998*947# -> Reset On Fatal Error

*#9998*999# -> Last/Chk

*#9998*9266# -> Yann debug screen (=Debug Screens?)

*#9998*9999# -> Software version

*0001*s*f*t# -> Changes serial parameters (s=?, f=0,1, t=0,1) (incomplete)

*2767*3855# -> Full EEPROM Reset ( THIS CODE REMOVES the Security Lock and formats The Mobile's Chipset )

But also changes IMEI to 447967-89-400044-0, To restore your old IMEI use the IMEI program found on the software page.

*2767*2878# -> Custom EEEPROM Reset ( does not change the securitu CODE )

The master reset code is:
#*7728#
This will not delete anything from your
mobile phone, but set each and eveything to its
default/standard setting as it was on the time of purchase.

To unlock your phone put a sim from another company,
now type *#9998*3323# it will reset your phone. Push exit and then push 7,
it will reset again. Put your other sim in and it will say sim lock,
type in 00000000 then it should be unlocked. Type in *0141# then
the green call batton and it's unlocked to all networks.
This code may not work on the older phones and some of the newer phones.
If it doesn't work you will have to reset your phone without a sim in it
by typing *#2767*2878# or *#9998*3855#

I will not responsible for any damages on your Nokia cellphone, as a result of trying any one of these secret GSM codes