Hey all. I'm new to the forum, so hopefully this is the right place for this. Today I decided to upgrade to 4.2.8 (previously had a jailbroken 4.2.7) and jailbreak it. I followed the procedure to do it using Pwnage Tool but when the phone reboots it just sits on the Apple logo. No matter what I've tried (including just restoring it to the stock 4.2.8) I can't seem to get it off the Apple logo screen.
Hopefully someone here can give me a hand. Thanks in advance!

