Discover a few hidden features in Android with these secret codes

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  Most interesting hacks require root and other tweaks, but here is a simple way of getting info on your device and changing some settings not possible in the normal menus. Simply open the dialer on your phone and enter some numbers!
  1. 
     

     Basic phone info

     In the dialer enter *#*#4636#*#*You will then see a testing page, which gives you info on the phone, as well as battery stats and app usage stats. In the Wifi menu you can get info on the network you are connected to and more.
   
  2. 
     

     Change the power button action

     Entering  *#*#7594#*#* will bring up the menu to adjust the power button action. Dependent on your ROM you usually see a list of actions such as ‘Reboot – Airplane Mode’ etc, this allows you to remove these.
   
  3. 
     

     HTC Update checking

     *#*# 2432546#*#* If you use an HTC device, you can force a check for updates using this code. This will bring up a notification telling you whether or not it has been successful. Be careful if you are using a custom ROM , as some updates may not be compatible with it.
  Wayne
  Secret Codes For Android Mobile Phones:
  I am not responsible, please use at your own risk.
  1. Complete Information About your Phone

  *#*#4636#*#*
  This code can be used to get some interesting information about your phone and battery.
  Usage statistics

  2. Factory data reset
  *#*#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
  It’ll NOT remove:
  Current system software and bundled application
  SD card files e.g. photos, music files, etc.
  Note: Once you give this code, you get a prompt screen asking you to click on “Reset phone” button. So you get a chance to cancel your operation.

  3. Format Android Phone

  *2767*3855#
  Think before you give 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.
  Note: Once you give this code, there is no way to cancel the operation unless you remove the battery from the phone. So think twice before giving this code.

  4. Phone Camera Update

  *#*#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.

  5. End Call/Power

  *#*#7594#*#*
  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.

  6. File Copy for Creating Backup

  *#*#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.

  7. Service Mode

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

  8. WLAN, GPS and Bluetooth Test Codes:

  *#*#232339#*#* OR *#*#526#*#* OR *#*#528#*#* – WLAN 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

  9. Codes to get Firmware version information:

  *#*#4986*2650468#*#* – PDA, Phone, H/W, RFCallDate

  *#*#1234#*#* – PDA and Phone

  *#*#1111#*#* – FTA SW Version

  *#*#2222#*#* – FTA HW Version

  *#*#44336#*#* – PDA, Phone, CSC, Build Time, Changelist number

  10. Codes to launch various Factory Tests:

  *#*#0283#*#* – Packet Loopback

  *#*#0*#*#* – LCD test

  *#*#0673#*#* OR *#*#0289#*#* – Melody test

  *#*#0842#*#* – Device test (Vibration test and BackLight test)

  *#*#2663#*#* – Touch screen version

  *#*#2664#*#* – Touch screen test

  *#*#0588#*#* – Proximity sensor test

  *#*#3264#*#* – RAM version