GSM CODES AND AIRTEL CODES

GSM Secret Codes:

Type *#61# and press call - Check redirection status..
Cancel all redirections: ##002#..

*43# to activate call waiting, to deactivate #43#..

If your phone doesn't have incoming call barring and outgoing call barring, you can try this..

For outgoing call barring dial *33*barcode*# and press OK.. To deactivate it dial #33#barcode*#..

On any phone on any network type in **43# to enable conference calls. You can make up to 7 calls at once..

If you need to block SMS reception (if you are spammed by someone) just press this code:
*35*xxxx*16#
xxxx is your Call Barring code (default is 0000)..
To remove this barring type: #35*xxxx#

If you want to hide/show your phone number when calling, put one of these codes below in front of the number that you are going to call..
(*#30# / *#31# or *31# / #31# ) Works on some networks.

Typing *0# or *nm# on the beginning of a txt message gives you detailed delivery report on some networks.. But turn off reports in message settings before..

AIRTEL CODES:

Dial *123# to see your credit balance.. Dial *110# and follow the options..

Dial *121# to get a personalised menu..

Type LIVE and send msg to 52567(TOLL FREE) to get AIRTEL LIVE SETTINGS..

Type MMS and send msg to 52567(TOLL FREE) to get MMS SETTINGS..

Call 578785(TOLL FREE) or 57878555(TOLL FREE) for HELLO TUNES LIST..
NOTE: SUBSCRIPTION CHARGES APPLY..

Dial *109*9898631902# to display the call cost after each call..


When the sim card-pin blocked type **042*pin2 old*newpin2*newpin2*
NOTE: AIRTEL doesnt have PIN2 NUMBER.. If your phone asks for PIN2 just enter something till it says PIN@ BLOCKED.. Dont worry.. Your SIM is not blocked.. Then just type your mobile number ans send a msg to 785.. You will get PUK number.. Now go to the menu where you can change your security passwords and all.. It will ask for PUK2 NUMBER.. Just type your PUK NUMBER and you can change your PIN2 NUMBER..

If you are in India using IDEA Pre or Postpaid connection then dial *101# you will get a secret menu that will let you to activate or deactivate any supported Idea package for your mobile..

OTHER CODES:

Software version: *#9999#

IMEI number: *#06#

Serial number: *#0001#

Battery status- Memory capacity : *#9998*246# OR *#8999*246#

Debug screen: *#9998*324# OR *#8999*324#

LCD kontrast: *#9998*523# OR *#8999*523#

Vibration test: *#9998*842# OR *#8999*842#

Alarm beeper - Ringtone test : *#9998*289# OR *#8999*289#

Smiley: *#9125#

Software version: *#0837#

Display contrast: *#0523# OR *#9998*523# OR *#8999*523#

Battery info: *#0228# OR *#9998*228# OR *#8999*228#

Display storage capacity: *#9998*636# OR *#8999*636#

Display SIM card information: *#9998*778# OR*#8999*778#

Show date and alarm clock: *#9998*782# OR *#8999*782#

The display during warning: *#9998*786# OR *#8999*786#

Samsung hardware version: *#9998*837# OR *#8999*837#

Show network information: *#9998*638# *#8999*638#

Display received channel number and received intensity: *#9998*9266# OR *#8999*9266#

*#1111# S/W Version

*#1234# Firmware Version

*#2222# H/W Version

*#9998*8376263# OR *#8999*8376263# - All Versions Together

*#9998*8378# OR *#8999*8378# - Test Menu

*#4777*8665# GPSR Tool

*#9998*523# OR *#8999*523# - LCD Brightness

*#9998*377# OR *#8999*377# - Error LOG Menu

*#9998*327# OR *#8999*327# - EEP Menu

*#9998*667# OR *#8999*667# - Debug Mode

*#92782# PhoneModel (Wap)

#*5737425# JAVA Mode

*#2255# Call List

*#232337# Bluetooth MAC Adress

*#5282837# Java Version


SAMSUNG:

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#

Samsung V200, S100, S300 phone unlock : *2767*782257378#

NOTE: I GOT THESE BY SEARCHING NET.. TRY THESE AT YOUR OWN RISK..