Hi, Recently I upgraded my jail-broken phone to 3.0 by pressing "update" in Itunes. The upgarde went well but I lost Cydia. I am still able to log on my carrier (Smartone HK), which is not an "offical iPhone carrier". My questions are: 1. My phone is now unlocked but not jail-broken? 2. How to get Cydia back without loosing my SMS, call history etc? Thanks.