samsung important code

Secret Codes Samsung Galaxy S3

To check Audio Loopback Control : #0283#
To check IMEI number : *#06#
To check WLAN MAC Address : *#232338#
To enter General Test Menu : *#0*#
To check Vibra Motor Test Mode : *#0842#
To check Real Time Clock Test : *#0782#
To check General Test Mode : *#0*#
To check Diagnostic Configuration : *#9090#
To check USB I2C Mode Control : *#7284#
To enable/disable Disabling Fast Dormancy : *#9900#
Update TSP/TSK Firmware : *#2663#
To check Data Create Menu : *#273283*255*3282*#
To check Data Usage Status : *#3282*727336*#
Remap Shutdown to End Call TSK : *#7594#
Camera Firmware Update : *#34971539#
Quick Test menu, To check every feature on S3 : *#7353#
To check Buyer or CSC : *#272*IMEI#
To check Software and Hardware information, PDA, CSC, MODEM (Firmware Version) : *#1234#
To check hardware version : *#2222#
To check GSM status information : *#0011#
Full Factory Reset : *2767*3855# (no confirm, will just execute the code )
To check hardware and stware : *#12580*369#
To enter Service Mode : *#0011# or *#197328640#
To enter Service mode (Ciphering Info) Battery status (ADC, RSSI reading) : *#0228#