Selling 3GS how to delete personal data and preserve unlock

[brush]

I have a 3GS unlocked using blackra1n. It is running 3.12 with base band 5.11.07

I have sold the phone and will ship it on 6/25, the day after my Iphone 4 arrives from Apple (hopefully!)

So is there way to delete personal data, contacts, and photos and not screw up the unlock?

I think Cydia has two apps that might help. Iwipe and another that erases contacts called erase contacts. I wonder if in Itunes I deselect all photo folders and apps, Sync, and then delete all contacts with erase contacts ap and then run Iwipe if I will have cleaned up my phone enough to sell it. Any suggestions would be appreciated.

In case it helps, I do have the SHSHs on file in Cydia

[confucious]

If you have your blobs then just restore to 3.12 and unlock again - if the unlock for 4.0 hasn't been released by then.

[brush]

Thanks Confucious. Could you do me a huge favor a give me the steps to do that? I'd hate to loose the ability to unlock. Thanks

[confucious]

See Caching Apple's Signature Server - Jay Freeman (saurik)

[bobright]

just curious was it a 32GB and how much did you get for it?

I'm looking to sell my 3GS 32gb unlocked as well

[brush]

sold on Ebay last week for $435 with a ship date of 6/25. It is a 32g. Some are going for more.

[philo]

You sold pretty cheap. 32 gig for 435 you sold too low. If it were me selling a 32 in great shape with the old bootrom i'd have held for a minimum of $550.