I read through few posts about people being able to claim their warranty even after unlocking their bootloader , now these people had almost the same problem ..there screen wouldn't display anything or their phone wouldn't boot up at all. So I guess HTC won't check for your warranty if your phone is not booting up ...they'll just check your bill and see if its under warranty and do it for free ...
Sent from my HTC One X using xda app-developers app
Sent from my HTC One X using xda app-developers app