[JMG]

I just sold my 3G and I want to jailbreak and unlock it as well as erase all my personal info from it.

So far I think I have to restore to factory, jailbreak using redsnow, then unlock with ultrasnow. At this point I heard you can restore to factory again and the jailbreak will dissappear, but the unlock will stick? Is this true and how do i confirm this if I am mailing the iphone out to the new owner? (i need to confirm before I mail out so it doesnt have to be sent back etc)

If anyone has done this before please let me know what I need to check and do to make sure none of my account info is the phone. THANKS!!!