N7100 - Serial Number: 00000000000
About a month ago I flashed to the new leaked 4.3. yesterday I decided that I wanna go back to 4.1.2
To be able to have OTA updates and warrenty. I flashed back to 4.1.2 and got no service and the 0499xx IMEI issue.
After spending hours over the net trying to resolve this without luck, I gave up and went to a local lab.
They fixed the IMEI issue and I now have network again (phone is now on 4.1.2), but my serial number turned to "00000000000".
Also when I attempt to check for firmware updates, it gives me the "Your device has been modified" message.
Two questions -
1) If I reflash it to the official Samsung 4.1.2, will it fix the issue ?
2) If not then what can be the fix ?
Thanks in advance,