[tbrashier]

I installed the new 4.5 OS on my 8800 last night and it has been in a reboot loop ever since. I've pulled the battery, tried to re-install the OS again, called AT&T and BlackBerry all, so far, to no avail. Since this is where the experts reside I was hoping someone might have a solution for me. Thank you for your assistance!

[violatizzle]

read this:

BlackBerry 101: How to Reload the Operating System on a Nuked BlackBerry | CrackBerry.com