*#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 Frequency 

*#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) 
*0002*?# -> unknown 
*0003*?# -> unknown


SP-unlock SGH-600 and SGH 2100
*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, 

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

These codes has been tested with version FLD_2C6 G60SB03X of Samsung SGH-600