I'm still trying to downgrade iphone 4, 4.3.5 and goes through process of restoring to custom ipsw 4.3.3 but twice ends in recovery mode ( USB lead and iTunes showing) tinyumbrella won't fix this so have to restore back to 4.3.5.
I've just read about this "Fix Recovery" download from tinyumbrella. http://jaxov.com/2011/05/fix-ios-4-3-3-recovery-loop-on-iphone-4-3gs-using-tinyumbrella-fix-recovery/
This should work on 4.3.3. Has anyone tried this and what is the process you used? Did it work??(hope is ok to post link - although it doesn't appear to work)
Thanks
Yes for me it did I had to download some other file can't tell you name of it I can't remember it but I know I got it from that web site in your post what I did was when you get the error code try tiny um off and iTunes the go to the fix recover for 4.3 there is two in folder chose it and should run for you it took me 3:00 to get it to work turned every thing off and it work for me hope it helps you
You need to know whether you have 4.3.3 shsh blob before you do any downgrade or restore to firmware that apple no longer signs. Check with tiny umbrella first.
By the way, redsn0w 0.9.9b1 can kick out error 1013
Yeah I have SHSH all saved from 4.2.1 to present. It just won't get past that recovery stage. It's done the restore I think back to 4.3.3 ipsw file so I'll try that Fix Recovery on the weekend. Here's hoping.