I'm passing my IPhone 4 on to my mother, and I wanted to reset it. So I went into settings -> general -> reset, and I picked the option to reset all settings and remove all the data. Now I'm seeing a screen with a spinner on it. How long can I expect this to take? At what point should I reboot the phone and try again?
I'm still running IOS 5.something on it, because I had jailbroken it, but according to most sites I'm reading, the jailbreak shouldn't affect the reset.