i see it's your first post. welcome to rootzwiki.
i'll try to help you out.
what rom were you on when you flashed liberty?
did you wipe per the instructions?
since you're stuck in bootloop, have you tried a data wipe/factory reset?
usb debugging and sbf have nothing to do with each other. just follow the directions here if you want to sbf http://rootzwiki.com/showthread.php?399-UPDATED-GUIDE-LINKS-DX-SBF-s
i'll try to help you out.
what rom were you on when you flashed liberty?
did you wipe per the instructions?
since you're stuck in bootloop, have you tried a data wipe/factory reset?
usb debugging and sbf have nothing to do with each other. just follow the directions here if you want to sbf http://rootzwiki.com/showthread.php?399-UPDATED-GUIDE-LINKS-DX-SBF-s