Hi friend if you are using Android os in you mobile and getting some problem for formatting,and otherhardware problem then this post is very useful for you. Because in this trick you get all android secret codewhich is very useful for you peoples.

1. Factory Data Reset Code
*#*#7780#*#*

 This code is 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.

2. Completely Format Android Phone

*2767*3855#

•  It will remove all files and settings including the internal memory storage and also reinstall the phone firmware.

3. All Details About your Phone

*#*#4636#*#*

 This code can be used to get all details about your phone and battery. It shows following 4 menus on screen:

• Phone information
• Battery information
• Battery history
• Usage statistics

4. Codes to get Firmware version information

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

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

*#*#1234#*#* – PDA and Phone

*#*#1111#*#* – FTA SW Version

*#*#2222#*#* – FTA HW Version5. Codes to launch various Factory Tests 

*#*#0*#*#* – LCD test

*#*#0673#*#* – 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

*#*#0283#*#* – Packet Loopback
6. Service Mode

*#*#197328640#*#*

 This code can be used to enter into Service mode. You can run various tests and change settings in theservice mode. 
7. Bluetooth,WLAN and GPS Test Codes:

*#*#232331#*#* – Bluetooth test

*#*#232337#*# – Shows Bluetooth device address

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

*#*#232338#*#* – Shows WiFi MAC address

*#*#1472365#*#* – GPS test

*#*#1575#*#* – Another GPS test8. Phone Camera Update

*#*#34971539#*#*

 This code is used to get information about phone camera. It shows following 4 menus:

• Update camera firmware in image (Try this option at your risk)
• Update camera firmware in SD card
• Get camera firmware version
• Get firmware update count