Redsn0w won't recognize IPSW file (iTouch 2G 2.2.1)
I'm trying to use redsn0w to jailbreak my 2G iPod Touch running 2.2.1, but I can't get it to work. I open redsn0w and point it to the IPSW file on my desktop. It says "processing firmware" for a few seconds, then says "unable to recognize specified IPSW".
I have both 0.7.1 and 0.8 versions of redsn0w, and they give me identical results. I have downloaded the firmware file from six different sources (including an actual Apple server), and it is always titled iPod2,1_2.2.1_5H11a_Restore.
I'm running Windows XP Pro SP3, if that makes a difference.
What do I do? I've searched and searched, but can't find anyone having the exact same problem and a solution. My only guess is that something in the filename is messing up redsn0w's process and the file needs to be renamed. Thanks for your help, folks.