I'm trying to jailbreak and unlock my bf's 2G and keep running into LOADS of problems. I jb/ul'ed months ago but he tried downloading something off Cydia and now the phone doesn't do anything but show the silver apple logo.

I'm trying to do this with WinPwn however it keeps giving me an "unknown file" error when i load the ipsw. I read somewhere that I should change the partition size but I have no idea how to do that. Can anyone help out? This is, honestly, starting to drive me batty!