Some secret codes for android phones

Now a day the android is the most demanding one so here i am writing some secret  codes for android have fun.....

.............................................................................................................................................. *#*#4636#*#*

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

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

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*#*#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 applications
• SD card files e.g. photos, music files, etc.

PS: 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.
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 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

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 *#*#8255#*#*

This code can be used to launch GTalk Service Monitor.
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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
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 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
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*#*#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.
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*#*#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.
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*#*#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

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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.
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 NOTE: All above codes have been checked on Google Android phone Samsung Galaxy I7500 only but they should also work in other Google Android phones.
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 DISCLAIMER: This information is intended for experienced users. It is not intended for basic users, hackers, or mobile thieves.

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