SOME SECRET CODES OF ANDROID PHONE'S

Hello friends..
Here about to post a tutorial That is For mainly for anroid users.
I hope u will like it.
See Here some of the tricks on your Android phones Operating System/android OS cellphone.

Please note " Some codes mentioned here can be dangerous."

*#*#4636#*#* Phone /Battery / USage information
*#*#7780#*#* factory data reset
*2767*3855 # factory format
*#*#34971539#*#* information about phone camera
*#*#7594#*#* End Call / Power
*#*# 273283*255*663282*#*#* File copy / backup
*#*# 197328640#*#* Service mode.

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
*#*#8255#*#* Thiscode can beused to launch GTalk Service Monitor.

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

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

Have fun with these secrets codes and don't forget to say thanks... :)