If you are a user of a GT-I8190N or GT-I8190L phone then you saw already that your model number in settings > about phone is changed to GT-I8190 on Custom ROMs like CyanogenMod, Carbon etc.
Now I want show you how you can change your original model number back to GT-I8190N/L
- Root access
- a Root explorer (example Root browser or the stock file manager of CM)
Now let´s start :
1. give your Root explorer Root access
2. go to /system and search the build.prop file (optional,do backup your current build.prop file to avoid mistakes)
3. open build.prop and you will see many codes, search for "ro.product.model=GT-8190"
4. Delete GT-I8190 and add YOUR model name or add N or L
5. save it and Reboot your phone
6. Congratulations! you have your original model number back
Note : Do NOT edit other codes in build.prop. Maybe system apps will cause force close.
Do this methode at yor own Risk!