Secret Code In Android Operating system

Android, a new operating system that increasingly a lot of fans. As with mobile phones that other operating system, Android also has a secret code that deliberately for troubleshooting or maintenance purposes.

These codes are mostly serves to reset some data or even reset the whole data stored on Android, so before using please read carefully their use and when not really needed do not try because, it could be some settings on your phone can be a pain.

To test the functionality of the components in your phone, you can use the secret code below.

1. Tests WLAN, GPS and Bluetooth
*#*#232339#*#* → WLAN test
*#*#526#*#* → WLAN test
*#*#528#*#* → WLAN test (Use "Menu" to launch the various tests)
*#*#232338#*#* → Displays the MAC address of WiFi
*#*#1472365#*#* → GPS test
*#*#1575#*#* → Other GPS test
*#*#232331#*#* → Bluetooth test
*#*#232337#*# → Displays the Bluetooth address

2. Showing GTalk Service Monitor
*#*#8255#*#*

3. Code to get the 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, numbered list of changes.

4. Code components to perform various tests on the phone:
*#*#0283#*#* → Loopback packet
*#*#0*#*#* → LCD test
*#*#0673#*#* or *#*#0289#*#* → Melody test
*#*#0842#*#* → Device test (Vibration, and Backlight test)
*#*#2663#*#* → touchscreen version
*#*#2664#*#* → touch screen test
*#*#0588#*#* → proximity sensor test
*#*#3264#*#* → RAM version

5. Displays information about mobile phones and batteries
*#*#4636#*#*
This code will display the menu screen four:
- Phone Information
- Battery Information
- History of Battery
- Statistics

6. Function: reset (delete) data to the original
*#*#7780#*#*

This code will reset the data:
- Google Account Settings are stored in your phone
- System, application data and settings
- Application Download

And will NOT reset:
- System software has been installed and bundled applications
- File in the SD card as pictures, music files, etc.

Note: Once you enter this code, you get a prompt on the screen asking you to click on the button "Reset Phone". So you get a chance to cancel your operation.

7. Function: reformat the phone to factory settings
*2767*3855#

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.

Before you give this code consider first because, this code will remove all files and settings including the internal memory storage. It will also reinstall the phone firmware.

8. Function: provides information about camera phones
*#*#34971539#*#*

This code will display the following four menus:
- Update the firmware of the camera in image (Do not try this option)
- Update camera firmware in SD card
- Getting the firmware version of the camera
- Getting the firmware update count

Note: Do not use the first option, the first option will make the phone camera will stop working and you will need to take your phone to a service / shop to reinstall camera firmware.