Here are the list of  Samsung and HTC android phone codes

 

SAMSUNG CODESDescription
*#*#4636#*#*Displays Phone information, Battery information , Usage Statistics, Wifi Information
*#*#7780#*#*Restting your phone to factory state-Only deletes application data and applications
*2767*3855#It’s a complete wiping of your mobile also it reinstalls the phones firmware
*#*#34971539#*#*Shows completes information about the camera
*#*#7594#*#*Changing the power button behavior-Enables direct poweroff once the code enabled
*#*#273283*255*663282*#*#*For a quick backup to all your media files
*#*#197328640#*#*Enabling test mode for service activity
*#*#232339#*#* OR *#*#526#*#*Wireless Lan Tests
*#*#232338#*#*Displays Wi-Fi Mac-address
*#*#1472365#*#*For a quick GPS test
*#*#1575#*#*A Different type GPS test
*#*#0283#*#*Packet Loopback test
*#*#0*#*#*LCD display test
*#*#0673#*#* OR *#*#0289#*#*Audio test
*#*#0842#*#*Vibration and Backlight test
*#*#2663#*#*Displays touch-screen version
*#*#2664#*#*Touch-Screen test
*#*#0588#*#*Proximity sensor test
*#*#3264#*#*Ram version
*#*#232331#*#*Bluetooth test
*#*#7262626#*#*Field test
*#*#232337#*#Displays bluetooth device address
*#*#8255#*#*For Google Talk service monitoring
*#*#4986*2650468#*#*PDA, Phone, Hardware, RF Call Date firmware info
*#*#1234#*#*PDA and Phone firmware info
*#*#1111#*#*FTA Software version
*#*#2222#*#*FTA Hardware verion
*#*#44336#*#*Displays Build time and change list number
*#06#Displsys IMEI number
*#*#8351#*#*Enables voice dialing logging mode
*#*#8350#*#*Disables voice dialing logging mode
##778 (+call)Brings up Epst menu
HTC CODESDescription
*#*#3424#*#*HTC function test Program.
*#*#4636#*#*HTC Info menu
*#*#8255#*#*launching GTalk Service Monitor
##3424#Diagnostic mode.
##3282#for EPST.
##8626337#for VOCODER
##33284#Field trial menu.
##786#Reverse Logistics Support.
##7738#Protocol Revision.