Default Need help going back to stock

I installed a bulletproof kernel for tap to unlock on my rooted htcone m7. It messed something up and I started getting an unknown baseband error, and I couldn't open any programs. I couldn't get tony USB drive to get my stock image to flash. I decided to use ruu to go back, but now it keeps getting stuck at 48% checking headers. I am not sure if I cand do anything to get past that or if I have any other options to rescue my bric. Can someone please help me?