Android Phone Useful Code

*#*#4636#*#*   
Display information and statistics like Phone Information, Battery Information, Usage of installed application and Wi-Fi info such as API, configurations and status

*#06#   
Display IMEI Number of the device

*#*#197328640#*#*   
This dial command will take you to the service mode where you will be provided with options to carry out tests for screen, GSM, Audio,UMTS and more

*#0*#   
Test for color, camera, sensor, vibration, speaker, S-Pen, touch and other

*#SELF# or *#7353#    
Test for Bluetooth, Vibration, Dimming, Camera, proximity Sensor and other

*#0228#    
It gives details regarding battery charge condition, current value and average value of voltage & temperature and others.

*#*#0*#*#*    
Test for color, camera, sensor, vibration, speaker, S-Pen, touch and other

*#*#34971539#*#*     
Display complete information regarding your camera. Please do not use Update camera firmware option unless you are a techi as the option will try to upgrade the camera firmware and may make your camera unusable. Other options are safe to try.

*2767*3855# 
Factory format option. Take a backup of your files and settings before trying this option.

*#*#273283*255*663282*#*#* 
Offers quick backup of all your media files

*#*#7780#*#* 
Factory reset. Will reset your device to factory defaults settings there by removing the downloaded apps and configured settings. It will not remove any files from your SD card

*#*#0289#*#* 
For various audio tests

*#*#232338#*#* 
Display Wi-Fi MAC Address

*#*#1472365#*#* 
Test for your GPS device

*#*#232331#*#* 
Test for Bluetooth

*#*#232337#*# 
Bluetooth device address

*#*#0842#*#* 
Test for vibrations and backlight

*#*#2663#*#* 
For version of your touchscreen

*#*#2664#*#* 
test for touch screen

*#*#3264#*#* 
Version of your RAM

*#*#0588#*#* 
Test for Proximity Sensor

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

*#*#1234#*#* 
PDA and Phone Firmware Information

*#*#44336#*#* 
Displays Build Time and Change List Number

*2767*4387264636# 
Display Product Code

*#7465625# 
View Phone Lock status

*#*#7594#*#* 
ShutdownApp. Offers option to shutdown device when END CALL Button is pressed for longer duration. Other options offers to create LOGCATD during phone boot up process