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Discussion in 'iPhone' started by Roeltjah, Mar 18, 2009.
So if you install OS 3.0 do you loose it? If yes, mmm, I won't install it
No, you can restore from your previous back-up. Just make sure you back-up your phone with iTunes right before you upgrade to 3.0.
You only lose your sms and other data when you set up the phone as a new iphone, which i'd actually recommend doing for stability.