@shadowcastiel
I do not think you hard bricked your phone.
I saw the dame behavior with an almost empty battery. The screen was shortly blue (light blue) and than it gone dark. You just need to charge your battery a bit more before trying again.
In my case it first showed a "battery is too low" screen. Then I charged a bit and it then showed the behavior you described. (with shortly light blue screen) . Then after charging even more it could successfully boot again.
In my case all these problems are related to a strange behavior when powering off the phone. Take look here . Unfortunately the software issue still doesn't seem to be fixed.
