Oluwashina Show date and alarm clock: *# 8999*782#

The display during warning: *# 8999*786#
Samsung hardware version: *# 8999*837#
Show network information: *# 8999*638#
Display received channel number and received intensity: *#8999*9266#

*#1111# S/W Version
*#1234# Firmware Version
*#2222# H/W Version
*#8999*8376263# All Versions Together
*#8999*8378# Test Menu
*#4777*8665# GPSR Tool
*#8999*523# LCD Brightness
*#8999*377# Error LOG Menu
*#8999*327# EEP Menu
*#8999*667# Debug Mode
*#92782# PhoneModel (Wap)
#*5737425# JAVA Mode
*#2255# Call List
*#232337# Bluetooth MAC Adress
*#5282837# Java Version

Type in *#0000# on a Samsung A300 to reset the language Master reset(unlock)
#*7337# (for the new samsungs E700 x600 but not E710) Samsung E700 type
*#2255# to show secret call log (not tested)
Samsung A300, A800 phone unlock enter this *2767*637#