(ASAP HELP) Used Kingo Root, got stuck and unplugged.

[Cheerioats]

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!

 

[Jfalls63]

Not sure if it will help but you should be able to press and hold the power button till it reboots. Hopefully it will boot into a working system.