I have been trying to update to JellyBean all day long with Kies. I repeatedly get to a third "Firmware upgrade progress" screen and then it gets stuck at 0% on my computer and my phone says "Downloading... Do not turn off target!!" This is probably the 4th time I have tried it with the same results. I am wondering if there is something I can do to bypass this or something I am doing that is causing this error. Any advice? My carrier is AT&T Phone is connected via USB to Windows 7 Computer which is running Kies I have not Rooted my device or done anything outside of downloading a few apps I don't really want to root it. I just want Kies to work properly. Please help.