These secrets are for various Samsung models. Not all secrets work with all models or on different service providers. Enter these strings at your own risk.
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Older Models:
NAM Programming: 47*869#08#9
Test mode: *759#813580 OR 5809540*45680
Exit Test Mode: 02
A-Key: menu + 0, code 25##
Samsung SPH-T100
MENU 820 > 810325
Samsung SCH-3500
MENU 820 > 295184
Programming of various other models:
Samsung A500
Enter ## and the 6 digit OTKSL
SERVICE MENU will appear and 1.Basic will be highlighted
Press OK
Device will display NAM CDMA/ Phone Number
Enter 10 digit MIN
Press OK (3 times)
Display will return to Service Menu. Press END.
Programming is complete
Samsung N240 and N400
Enter ## and type in the 6 digit OTKSL
The display will show SVC MENU and 1. Phone Number
Press OK
Enter the 10 digit MIN and press OK
The display will show NAM with Home SID on the second line (Note: SID is no longer used)
Press OK
The display will return to the SVC MENU
Press END to complete the programming
Samsung Uproar
Press MENU key
Enter 9 2 0
Enter the OTKSL
At SVC Menu screen press OK
Enter MIN and press OK 4 times
Enter SID (4654) and press OK
Press END key
Programming is complete
Samsung N300
Press ## followed by the OTKSL
SVC menu will be displayed
Press 1 for Phone #
Enter the 10 digit MIN and press OK
MIN that was entered will be displayed press OK
SVC Menu will display press 3 for NAM
Enter the 4 digit Home SID press OK
Press END and handset will power cycle
Samsung i300
Tap on the Phone Icon with stylus
Press #907*9#0 ENTER LOCK should appear on screen
ENTER OTKSL
SVC MENU will appear press 1
Enter 10 digit MIN and then press SAVE
Press SAVE again
Press 3 and then press SAVE 6 times
Enter the HOME SID and press SAVE once
Press END key twice
Samsung A400 and A460
Enter ## and OTKSL
Press 1 for Basic at MENU (1 of Phone # when using the MSL)