I need help, stuck at unlocker and nothing works

[clearlyunseen]

Ok, I unlocked my phone the first time and it worked fine, from there I installed a new rom and everything was working fine. Decided I wanted to try something else so I unlocked again, but this time no roms work whatsoever, im just stuck at the screen with three colors. When I try to install a rom it gives me the progress bar but it stays at 0% until it gives me the 262 error. From there I recover back to the 3 color stage but no rom will get me past the 262 error.

Any help guys would be greatly appreciated.