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Jay3GSM

macrumors newbie
Original poster
I'm gonna sell my iPhone, so I want to delete all my personal data, but retain the unlock. Any suggestions on the best way to do this?
 
I'm gonna sell my iPhone, so I want to delete all my personal data, but retain the unlock. Any suggestions on the best way to do this?

Best way, restore to Official Apple IPSW, then re-JB and unlock.

Difficult on 3GS, easy on 3G.
 
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