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Thread: An Unknown error occurred (21)
11-09-2008, 04:11 PM #1An Unknown error occurred (21)
i tryed upgrading to the latest firmware and my phone has just messed up compleatly
i have upgraded and downgraded to every 2.0 virmware and none will load n all of them will come up with An Unknown error occurred (21) when i load up custom firmware
ive tryed using pwnage for mac, quickpwn for mac (but i cant get the timing right on that) along with winpwn but everything seems hopeless i cant find anything on google about An Unknown error occurred (21) or how to resolve it but nothing seems to work
i own a powerbook g4 if that helps but also have access to a pc
might have to buy a bloody hypersim
having a phone which is praticaly a brick sucks
Last edited by morbid_theory; 11-09-2008 at 04:11 PM. Reason: Automerged Doublepost
11-25-2008, 07:28 AM #2
This same thing just happened to my iPhone 3G with the 2.2 upgrade.
Any help would be more than appreciated.