Generic Secret Codes
*#06#
Checks IMEI (International Mobile Station Equipment Identity) number.*#*#7780#*#*
Factory reset (deletes application data and applications but not firmware).*2767*3855#
Full reset of your phone including firmware (not to be used lightly).*#*#7594#*#*
Change the power button behavior (enable code for direct power off).*#*#4636#*#*
Displays information about phone, battery, usage and WIFI statistics.*#*#273283*255*663282*#*#*
For a quick backup of all your media files.*#*#1472365#*#*
Quick GPS test.*#*#1234#*#* OR *#1234#
PDA and phone firmware information.*#*#8255#*#*
Launch GTalk service monitor.*#*#232338#*#*
Displays Wi-Fi Mac address.*#*#36245#*#*
Access email debug information.*#*#225#*#*
Events calendar.*#*#426#*#*
Debug information for Google Play service.*#*#759#*#*
Access Google Partner setup (Rlz debug interface).
Samsung Secret Codes
*#*#34971539#*#*
Displays full information of the camera.*#0*#
Check your phone LCD, camera, vibration, sensor, speaker, etc.*#*#197328640#*#*
Enables test mode for service activity.*#*#232339#*#* OR *#*#526#*#*
Wireless LAN tests.*#*#1575#*#*
A different type of 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.*#*#232331#*#*
Bluetooth test.*#*#7262626#*#*
Field test.*#*#232337#*#
Displays bluetooth device address.*#*#4986*2650468#*#*
PDA, phone, hardware, RF, call, date and firmware info.*#12580*369#
Software and hardware version.*#*#1111#*#*
FTA Software version.*#*#2222#*#*
FTA Hardware verion.*#*#44336#*#*
Displays build time and change list number.*#*#8351#*#*
Enables voice dialing logging mode.*#*#8350#*#*
Disables voice dialing logging mode.##778 (+call)
Brings up Epst menu.*#0228#
Check battery status (ADC, RSSI reading).