So I've trashed the drive's FW.. I go to push back in the original FW to start over, I also check the key and get invalid key errors. The original backup FW is trashed.
So the question is how to I fix this..

Thanks all! Feel free to label me n00b even though this is my 6th xbox flash.

OH! This is a replacement drive. I do have the original Hitachi (HL) drive's firmware and it's got a good key on it. I'm not really sure how to make this happen.
Thanks all.