The Important keys in Android phones.
Hidden Secret Android Codes
*#*#778O#*#* = Factory Data Reset...
*#*#I472365#*#* = Quick GPS Test...
*#*#0673#*#* OR *#*#0289#*#* = Audio Test...
*#*#2664#*#* = Touch Screen Test
#’#273283*255*663282*#*#* = Backup Media
Files...
*#*#0283#*#* = Packet Loopback Test...
*2767*3855# = Reinstalls The Phones Firmware &
Format Your Phone...
*#*#232339#*#* OR *#*#526#*#* = wireless Lan
Test...
*#*# 1575#*#* = Different GPS Test...
*#*#4636#*#*‘ = Complete Information About
your Phone...
*#*#2663#*#* = Touch Screen Version...
*#*#232337#*# = Displays bluetooth Device
Address...
*#*#4986*2650468#*#* = PDA, Phone.
Hardware, RF Call Date...
*#*#44336#*#* = Displays Build Time...
*#06# = Displays IMEI Number...
*#*#8255#*#* = Google Talk Service Monitoring...
*#*#I I I I#*#* | *‘#*#2222#*#* = FTA Software
Version FTA | Hardware / Version...
*#*#3264#*#* = Rom version...
*#*#23233I#‘*#* = bluetooth Test...
*#*# 1234#’#’ = PDA and Phone Firmware Info...*#*#0*#*#*= LCD Display Test...
*#*#0842#*#* Vibration and Backlight Test...
*#*#0588#*#* = Proximity Sensor Test......
*#*#232338#*#* = Wi-Fi Mac Address...
*#*#7262626#*#*= Field Test...
*#*#34971539#*#* = Camera Update...
*#*#19732840#*#* = Enable Test Mode...
*#06# – IMEI number...
*#0*# – Enter the service menu on newer phones
like Galaxy S III...
*#*#4636#*#* – Phone information, usage
statistics and battery...
*#*#34971539#*#* – Detailed camera
information...
*#*#273282*255*663282*#*#* – Immediate
backup of all media files...
*#*#197328640#*#* – Enable test mode for
service..
*#*#232339#*#* – Wireless LAN tests...
*#*#0842#*#* – Backlight/vibration test...
*#*#2664#*#* – Test the touchscreen...
*#*#1111#*#* – FTA software version (1234 in
the same code will give PDA and firmware
version)...