Graphics Card Updating Problems

I updated my AMD Radeon R9 360 graphics card and decided to update all of my brothers pc's aswell, as they both have the same computer (Predator G3). While updated one of their pc's, the screen went black and said No Signal, being the idiot I am I decided that I should force shut down his computer, little did i know that the pc was already restarting, so i just messed up the updating cycle. Anyways, now his computer boots up, and shows a black screen with a spinning white circle of dots. Any help on fixing this would be appreciated.

I found a fix, after viewing many, many pages, you must start and turn off your computer when it shows the ring 2-3 times to set the computer into repair mode. Hope this helped anyone.