Mobiles Android usefull codes

[Zeepk]

*#*#4636#*#*
This code can be used to get some
interesting information about your
phone and battery. It shows following↓

5 menus on screen:
Phone information
Battery information
Battery history
Usage statistics
Wifi information

*#*#7780#*#*
This code can be used for a factory data
reset. It'll remove following things:
Google account settings stored in your phone
System and application data and
settings
Downloaded applications

*2767*3855#
Think before you put this code. This
code is used for factory format. It'll
remove all files and settings including
the internal memory storage. It'll also
reinstall the phone firmware.

*#*#34971539#*#*
This code is used to get information
about phone camera. It shows
following 4 menus:
Update camera firmware in image
(Don't try this option)
Update camera firmware in SD card Get camera firmware version
Get firmware update count
(WARNING: Never use the first option
otherwise your phone camera will stop
working and you'll need to take your
phone to service center to reinstall camera firmware.)

*#*#7594#*#*
This one is my favorite one. This code
can be used to change the "End Call /
Power" button action in your phone. Be
default, if you long press the button, it
shows a screen asking you to select
any option from Silent mode, Airplane mode and Power off.
You can change this action using this
code. You can enable direct power off
on this button so you don't need to
waste your time in selecting the option.

*#*#273283*255*663282*#*#*
This code opens a File copy screen
where you can backup your media files
e.g. Images, Sound, Video and Voice
memo.

*#*#197328640#*#*
This code can be used to enter into
Service mode. You can run various tests
and change settings in the service
mode.