I Have an iPhone 4 with 5.0.1. I wish to clean restore back to same firmware and re jailbreak. I keep getting error 11. I used tiny umbrella. I'm I missing something? Thanks!
Not 100% sure on the whole re-jailbreaking part, but you can just go into the settings menu on your phone and "Erase all content and settings". That puts you back to factory settings, then I assume you can re-jailbreak from there.
No. This is not the method you want to do. If "erase all contents" and settings works on a jail broken device, all you will end up with at the end of the restore is a stock phone on iOS 5.1. That is not what the OP wants to do (until/unless all options have been exhausted in trying to create a custom IPSW of 5.0.1).
As of right now, iOS 5.1 is only jail breakable tethered on A4 chip devices (and not at all for the 4S). Best to try to build/use a custom IPSW for iOS 5.0.1 - cause that jail break is untethered.
Marilyn
How can it restore you to 5.1 if you don't have 5.1 yet? He's on 5.0.1 right now, wouldn't it just put him to stock 5.0.1 and he can jailbreak 5.0.1 from there?
No. That iOS version (5.0.1) is no longer the most current, Apple-approved iOS. The current version that iTunes will use if you select to restore in iTunes (without first creating a custom IPSW to point to) is iOS 5.1.
It's a confusion of the word "restore," in that people think it means "put it back the way it was." In Apple's world, restore means put it back to like-new condition, BUT with the most current, up-to-date firmware on it; which is 5.1 now.
Hope that clarifies.
Marilyn
I'm not talking about a restore, I'm talking about going in to the settings on the phone itself and doing the "erase all content and settings" button.
That will not work if you are jailbroken.