Richard’s Corner

Downgrading iPhone Beta 3.0 to 2.2.1

I have been using iPhone OS 3.0 Beta for a while, but I recently ran into a situation that forced me to downgrade to 2.2.1. What was the situation you ask? Well, I was in the middle of a required upgrade from beta 4 to beta 5 when an “Unknown Error (10)” occurred. [...]

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