Samsung secret codes*#06# - IMEI (International Mobile Equipment Identity) number
Enter the service menu on newer phones like Galaxy S III Type *#0*#
Show Software Version. Use this to Show Software Version of your handset. Type *#9999#
Show Software Version (instructions). Use this to Show Software Version (instructions) of your handset. Type *#0837#
Show Serial Parameters. Use this to the Show Serial Parameters of your handset. Type *#0001#
Activates the smiley when charging. Use this to Activate the smiley when charging on your handset. Type *#9125#
LCD Contrast. Type *#0523#
Battery status (capacity, voltage, temperature). Type *#9998*228#
Program status. Type *#9998*246#
Change Alarm Buzzer Frequency. Type *#9998*289#
Debug Screens. Type *#9998*324#
Watchdog. Type *#9998*364#
EEPROM Error Stack - Use side keys to select values. Type *#9998*377#
Trace Watchdog. Type *#9998*427#
Change LCD contrast. Type *#9998*523#
Jig detect. Type *#9998*544#
Memory status. Type *#9998*636#
SIM File Size. Type *#9998*746#
SIM Service …