the below codes will work on most Android devices,
subject to carrier restrictions.
These codes are mostly universal, and should work on Android
devices,
no matter the manufacturer. There might still be carrier
restrictions on certain codes though, so they're not all guaranteed to
work.
*#06# - IMEI (International Mobile Station
Equipment Identity) number - essential in case your device is
stolen and you want to block the thief from accessing your network
*#*#7594#*#* -Make Power button turn off your device without displaying menu
*#*#4636#*#* - Display information about phone, battery, usage and WiFi
*#*#7780#*#* - Factory reset (deletes app data and apps, not firmware)
*2767*3855# - Complete phone wipe, including firmware (not to be used lightly!)
*#*#273283*255*663282*#*#* - Back up all your photos and videos
*#*#1472365#*#* - Test your GPS
*#*#1234#*#* - Display phone firmware and PDA info
You can access the above screen on most Android devices by entering *#*#4636#*#* on the dialpad. /
