Samsung cdma Service CodeSamsung unlock codes are different then service codes.

Samsung:All type of phones (old modeles):NAM programming: 47*869#08#9Test mode: *759#813580 or 5809540*45680exit test mode - 02A-Key: menu + 0, code 25##
Samsung A500
1. Enter ## and the 6 digit OTKSL2. SERVICE MENU will appear and 1.Basic will be highlighted3. Press OK4. Device will display NAM CDMA/ Phone Number5. Enter 10 digit MIN6. Press OK (3 times)7. Display will return to Service Menu. Press END.8. Programming is complete
Samsung N240 and N4001. Enter ## and type in the 6 digit OTKSL2. The display will show SVC MENU and 1. Phone Number3. Press OK4. Enter the 10 digit MIN and press OK5. The display will show NAM with Home SID on the second line (Note: SID is no longer used)6. Press OK7. The display will return to the SVC MENU8. Press END to complete the programming
Samsung Uproar1. Press MENU key2. Enter 9 2 03. Enter the OTKSL4. At SVC Menu screen press OK5. Enter MIN and press OK 4 times6. Enter SID (4654) and press OK7. Press END key8. Programming is complete
Samsung N3001. Press ## followed by the OTKSL2. SVC menu will be displayed3. Press 1 for Phone #