I have rooted my S3 and also flash it with the official unbranded UK ROM 4.1.1, as it would not boot properly after I was playing with it
Anyway ... as it seems the 4.1.2 update might be on its way soon, I check for updates OTA .. but it pops up and says, your phone is modified and unable to update OTA .. is this really the case, as I am on official ROM, thought the update should work ... or does it have to be done via KIES?
Anyway ... as it seems the 4.1.2 update might be on its way soon, I check for updates OTA .. but it pops up and says, your phone is modified and unable to update OTA .. is this really the case, as I am on official ROM, thought the update should work ... or does it have to be done via KIES?