Samsung Galaxy S3 Secret Codes

Testing and Information
*#*#4636#*#*
View IMEI
*#06#
View SW Version PDA CSC, MODEM
*#1234#
Service Mode
*#197328640#
ADC Reading
*#0228#
Vibrate Motor Test Mode
*#0842#
Real Time Clock Test
*#0782#
Diagnostic ConfiguratioN
*#9090#
USB I2C Mode Control
*#7284#
Audio Loopback Control
*#0283#
System Dump Mode
*#9900#
Factory Reset
*#7780#
TSP / TSK firmware update
*#2663#
Remap Shutdown to End Call TSK
*#7594#
Quick Test Menu
*#7353#
Sellout SMS
*27674387264636#
VSC/MMI Codes
*#30# — status of incoming caller ID
*#31# — status of outgoing caller ID
*#35# — status of incoming SMS
*#351# — status of Incoming SMS If Roaming.
*#33# — status of Outgoing SMS
*#331# — status of Outgoing International SMS
*#43# — status of call waiting
*#21# — status Unconditional Call Forwarding
*#002# — status all Conditional Call Forwarding
*#004# — status Conditional Call Forwarding (busy, no answer, unavail)
*#61# — status of forwarding when no answer
*#62# — status of forwarding when not reachable
*#62# — status of forwarding when busy
*xx# — enables feature
**xx# — register and activate feature
*#xx# — check status of feature
#xx# — cancels feature