Samsung Mobile Codes

*#9998*4357# Help Menu

  *#9998*5282# Java menu (GRPS/CSD settings for JAVA 

server)
    *#9999#0# Monitor Mode

  *#9999# or *#9998*9999# Software Version

  *#8888# or *#9998*8888# Hardware Version

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

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

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

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

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

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

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

  *#9998*782# show date and alarm clock

  *#8999*638# show network information

  *#9998*5646# change operator logo at startup

  *#9998*76# production number

  *#9998*968# view melody for alarm

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

  *#3243948# Digital Audio Interference Off

  *#32436837# Digital Audio Interference On