Just wanting a little help with my iPhone 3g 16gb White. I bought this off ebay and its running unlocked and jailbroken on version 2.0.2 (5C1) and modem firmware 05.11.07. Its defo unlocked as using my vodafone uk sim in it. I want to update my iPhone to a newer version 3.0 or 3.01 as I cant download any decent apps n want to have more fun with the phone. I'am new to all of this so go easy on me. I've downloaded all the software to upgrade to 3.0 but dont wana do it n lock phone out. Many thanks for your advise. also just been told of person i bought it off he upgraded the iPhone to 3.1 n then downgraded back to 2.0.2, dont know if this makes any difference?