Hi, I thought I could jb 4.2.1 and get the tethering hack to work without issues. Well, I was wrong. In any case, I had some issues and had to restore to an official 4.2.1 iOS. How can I get back to 4.1 so I can jb and then apply the commcenter tethering hack? (I am on AT&T) I have an shsh blob saves called *-iphone-4.1.shsh. (I also have iphone-4.2b3.shsh and iphone-4.2.1.shsh) Thanks!