Hopefully i am posting this in the right section. Here is a quick look at my situation. Couple of weeks ago while visiting family in the US i picked up a Galaxy S4 locked to at&t, brought it back to Canada and had it unlocked. Have been using it since without any problems. Now here is the problem. I am obviously on Android 4.2.2 and i know that AT&T and Rogers have 4.3 available at the moment. Well when i try to update firmware on Kies i get the "your devices current firmware version is not supported to update firmware via Kies" . When i try the OTA from the phone its under software update but then AT&T software update. once i check for updates i get software update interrupted message. Can this be because i have a Rogers sim and the phone wants to connects to at&t server? I also have basic AT&T apps that come with the phone such as(Drive mode, Family map, Locker, etc.) Is there a way to somehow switch the OS to the Rogers version? Id appreciate any advice at this point. Switched from an iPhone and couldn't be any happier.