These codes are used only by technicians, So be careful with them and use it at your own risk. Press "Ctrl+D" for Future Use! :)
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.
Basic Codes:
*#*#7780#*#* - This code is used for factory restore setting.This will remove Google account setting and System and application data and settings.*2767*3855# - This code is used for factory format, and will remove all files and settings including the internal memory storage. It will also re install the firmware.
*#*#4636#*#* - This code show information about your phone and battery.
*#*#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.
*#*#7594#*#* - This code enable your "End call / Power" button into direct power off button without asking for selecting any option(silent mode, aero plane and power-off).
*#*#8255#*#* - This code can be used to launch G Talk Service Monitor.
*#*#34971539#*#* - This code is used to get camera information. Please avoid update camera firmware option.
W-LAN, GPS and Bluetooth Test Codes:
*#*#232339#*#* OR *#*#526#*#* OR *#*#528#*#* - W-LAN test (Use “Menu” button to start various tests).*#*#232338#*#* - Shows WiFi MAC address.
*#*#1472365#*#* - GPS test.
*#*#1575#*#* - Another GPS test.
*#*#232331#*#* - Bluetooth test.
*#*#232337#*# - Shows Bluetooth device address.
Codes to launch various Factory Tests:
*#*#0842#*#* - Device test (Vibration test and BackLight test).*#*#0588#*#* - Proximity sensor test.
*#*#0*#*#* - LCD test.
*#*#2664#*#* - Touch screen test.
*#*#2663#*#* - Touch screen version.
*#*#0283#*#* - Packet Loopback.
*#*#0673#*#* OR *#*#0289#*#* - Melody test.
*#*#3264#*#* - RAM version.
Code for firmware version information:
*#*#1111#*#* - FTA SW Version.*#*#2222#*#* - FTA HW Version.
*#*#44336#*#* - PDA, Phone, CSC, Build Time, Changelist number.
*#*#4986*2650468#*#* - PDA, Phone, H/W, RFCallDate.
*#*#1234#*#* - PDA and Phone.
