Default Stuck in fast boot.

Hello. I'm having trouble with my HTC Rezound. I had CWM and Clean Rom was running fine but I tried to switch to Venasaur so I could use it on Straight Talk. I had an unlocked boot loader and everything worked before I tried flashing the new rom. Now, My phone won't even turn off unless it's dead.The bootloader says relocked, and it just keeps putting itself in fast boot whether I power it on or not.It says security warning under tampered and relocked. Can anybody please help me out? It would be much appreciated!