Samsung secret service codes

- IMEI code: *#06#

- Help Menu: #9998*4357#

- Java menu (GRPS/CSD settings for JAVA server):#9998*5282#

- Monitor Mode: *#9999#0#

- Software Version:#9999# or *#9998*9999#

- Hardware Version:#8888# or *#9998*8888#

- Sim Infos: *#9998*746#
or*#9998*0746# or
*#0746#

- Display Contrast:#9998*523#
or*#9998*0523# or *#0523#

- Vibration On (until you push OK): *#9998*842#
or*#9998*0842# or *#0842#

- Buzzer On (until you push OK):
*#9998*289# or*#9998*0289# or *#0289#

- Battery & Field Infos:#9998*288 #
or*#9998*0288# or
*#0288#

- Error log: *#9998*377# or
*#9998*0377#

- Sim Service table:#9998*778 #
or*#9998*0778# or *#0778#

- Show date and alarm clock:#9998*782#

- Show network information:#8999*638#

- Change operator logo at startup: *#9998*5646#

- Production number:#9998*76 #

- View melody for alarm:#9998*968#

- Non-Volatile Memory
(NVM):
*#9998*585#

- Digital Audio Interference Off:
*#3243948#

- Digital Audio Interference On:
*#32436837#