You can try these codes on Samsung,HTC and other cell phones which have android OS.
OK let's start:
- *#*#4636#*#* :You can get access to phone,battary and usage statistics....
- *#*#7780#*#* :Your phone returns to its fabric settings...
- *2767*3855#:This code makes a full erase and installation ...
- *#*#34971539#*#* :shows about the camera info...
- *#*#7594#*#* :changes behaviour of power button....
- *#*#273.283*255*663.282*#*#* :backs up quickly all media data...
- *#*#526#*#* :makes wireless LAN tests...
- *#*#232.338#*#* :monitorizes the Wifi ,MAC Address
- *#*#1472365#*#* :quick GPS test
- *#*#0*#*#* :LCD screen test
- *#*#0289#*#* :sound test
- *#*#0842#*#* :vibration and backlight test
- *#*#2663#*#* :monitorizes touch screen version
- *#*#2664#*#* :touch screen test
- *#*#0588#*#* :Proximity sensor test
- *#*#3264#*#* :RAM version
- *#*#232331#*#* :Bluetooth test
- *#*#7262626#*#* :range test
- *#*#232337#*#* :monitorizes the adress of bluetooth device...
- *#*#8255#*#* :for watching "Google Talk" service...
- *#06#:shows IMEI number