i was trying to find a pic of the arrows cause i've never seen it, and came across this. pay attention to the last post... what drivers are you using? when i rooted, i used the htc sync drivers from whatever version was recommended at the time. i remember that there was an update that didn't work, but this was a long time ago. you can still fix your phone its not bricked or anything, just have to find a way to do it is all.
Evo possible brick, Please help. - Page 2 - xda-developers