GENERAL CODES:

*#06# – To Display's IMEI number.

*2767*3855# – To format your device i.e To delete everything on the phone memory (Can be customized).

*#*#4636#*#* – This code will display your usage statistics and battery.

*#*#273282*255*663282*#*#* – This code helps you to back up all media files on your mobile.

*#*#197328640#*#* – This code will send you to the test mode, to test various functionality of your mobile.

*#*#1111#*#* – This code will display FTA software version.

*#*#1234#*#* – This code will show PDA and firmware version.

*#*#232339#*#* – For wireless LAN tests.

*#*#0842#*#* – This code is used  for Backlight/vibration test.

*#12580*369# – Display's Software and hardware info.

*#*#2664#*#* – This code is used for Testing the touchscreen.

*#9900# – System dump mode.

*#9090# – Diagnostic configuration.

*#*#34971539#*#* – Will display Detailed camera information.

*#872564# – USB logging control.

*#301279# – HSDPA/HSUPA Control Menu.

*#7465625# – This code will display phone's lock status.

*#0*# – This code will enable you to enter the service menu on newer phones like Galaxy S III.

*#*#7780#*#* – Reset the /data partition to factory state.

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