Wanted to root my v. 5.0.2 at Samsung Galaxy Tab S (SM-T805), and decided to root it with Kingo Root. I plugged it into my PC, and the process went well, as I could see. I also checked before that my device could be safely rooted. It stuck at 99% with the message "Waiting for device...". My device was in Download Mode, (green Android-man, Downloading..., Do not turn off target!!), and I found no other way. I unplugged it, but now I can't exit out of that screen. Help!