Make sure Tinyumbrella is not installed. If it is, there's a setting in the Advanced tab to download blobs or update (cant remember exactly what it says) from Cydia. Make sure to uncheck that option. Then try restoring using iTunes again.I am in desperate need of help to remove redsnow jailbreak from my son's ipod 4G. His friend put it on his ipod without his knowing and it became sluggish & started having problems with playing games, etc. A lot of posts said to do a restore in itunes and it would take it back to factory settings. We did that and it didn't work. Also, I read to put it in DFU mode and do a restore. Did that and it didn't work either. We have still been able to turn it on but cydia/jailbreak is still on it. I read to NOT remove just cydia or it would create more problems. Today, I found another attempt on wikihow on "how to restore your jailbroken 4th generation ipod touch" and so I followed their steps which instructed me to download tinyumbrella, uncheck "set hosts to cydia on exit", click on "save shsh" and then click on "start tss server", turn on itunes and follow steps to restore ipod. After waiting hours for itunes to run downloads, updates, etc., it said that the ipod couldn't be restored because of an unknown error and then had #11# - the first time I did it - and #1602# - the 2nd time I tried. I'm at my wits end! There was a tip that said if it didn't work to go to C:/Windows/System32/Drivers/etc/hosts. When you reach hosts, put the file ""hosts"" onto your desktop, and edit it in notepad. Once you reach the ip address labeled ""gs.apple.com"", if there is a hashtag ### in front of it, remove the hashtag, save the file, and put it back in C:/Windows/System32/Drivers/etc. --- Can anyone tell me if I should try this tip since the other didn't work? I'm not very computer literate when it comes to going into the "c" prompt, etc. so I'm nervous about even trying it. I will say that this is the first "error" message we have gotten since we have been trying to restore his ipod. I wondered if it had something to do with downloading tinyumbrella? Also, is it still on my computer because I can't find it now? I was going to uninstall/delete it since it didn't work but I can't find it. That's another thing I need to know! I HATE that my son's friend put this on his ipod because now he can't even use it! Someone please help me! I would appreciate it more than you know!