I would first attempt to put the stock rom back on the phone and once that is a success then you can start attempting to unlock it again. I had a similar problem while working on my buddies PRO. He wanted me to unlock it and add a ROM I made on his phone for him cause it was fast and I did so and while installing it the phone started going into a loop and I fixed it by flashing the stock rom back on the phone and then re-unlocking it and re-flashing the ROM. You did not brick the phone if it will boot. You just need to find something that will flash and hold long enough to flash it to what you wanted in the first place.
I hope this helps and good luck.
