How long does it take for Reset all Settings?

[LareeEdley]

Due to a change in my companies policy, iPhone's are no longer allowed to be used so I'm selling my 3GS tonight and am doing a reset all on my 16GB 3gS. It's been going on for over an hour so far and I had 12GB free on it. How long does this take? I didn't want to do a factory restore through iTunes because there's too much confidential info on there and I saw at iPhone 3GS: Factory Reset this is the best way to reset it.

This has been going on for over 2hr's now. I don't have the SIM card in it because I was told to go back to my Blackberry. Could that have something to do with it? Also could I just stop the process by shutting the iPhone off and doing a factory restore from a new computer with iTunes on it?

Thank You

Which takes a few HRS. Also may take a longer time, this depends on, your PC and phone

 

[quietsailor]

Nice tip! Thanks. I bought a phone that was locked in limbo trying to factory reset.

 

[Koorosh Hedayati]

I reset my iphone for all setting and now it takes 8 hours.I don't know what to do?