Updated Firmware, major issue

Hi everyone. I just recently finally ran some updates on my Macbook Pro. I can't remember the exact name and versions of the updates, but I know I did the battery update and the latest firmware update that I beleive came out a month or two ago. I prolonged doing this to make sure it was problem free. This did not work out, as when I restarted my computer after the update, it failed to boot. I got a black screen Darwin/BSD screen asking for my login, then password. I could type in my login but I could not type in any characters for my password. Once I hit enter with no password in it, it brought me to the normal login screen. When I tried to log in with my name and password, it brought me back to the black screen. I ran utility, then did an archive and re-install. The first disk of the reinstall went all the way through, but upon restart, my computer hung up on the white apple loading screen and said I needed to restart. Sorry so long, can anyone help? Thanks in advance. I really don't want to lose my whle hardrive

Message was edited by: thomas10

Message was edited by: thomas10