Quote:
Originally Posted by Olethros
The only unexplained difference is DeviceTree.m68ap.img3 pwnage tool does not change this file at all but it is definitely changed in the other ipsw. I cannot yet explain why it is changed and because it is a binary file I can't really tell what the changes are.
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I think I know the reason why it works (at least for a while): the set of certificates in this custom ipsw is different, and since not many users have installed it, at least for a while it works. As soon as someone another iPhone that shares the same certificates attempts to use Push, it fails.
The problem is the standard hacktivation certificates from pwnagetool and redsnow is that they are the same and tons of iPhones are loaded with them, therefore the chance of certificate conflict is enormous.