Android Snapdragon chipsets comes with wide range of short cuts that most users are not aware of. Here are some short cuts for most snapdragon chipsets. (example, Samsung devices)

☑️*#*#4636#*#* Display information about Phone, Battery and Usage statistics

☑️*#*#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.