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Originally Posted by jammin
need to jailbreak my 3g....... is it easy to do?
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Using QuickPwn to Jailbreak the iPhone 3G Firmware 2.2 | Apple iPhone School
Very easy. Only problem is that you will lose everything on your phone (apps, contacts, text messages, photos) unless you can back them up. I will never go back after jailbreaking mine. Every time Apple updates the firmware you will have to re-jailbreak (again, losing all contacts, photos etc).
If you're completely content with your phone I wouldn't suggest it. There may be a rare chance something goes wrong and brick your phone making you have to buy another one. Do your research and make sure it's something you want to do before attempting it. The only way to go back to original Apple software is to do a restore using iTunes which works perfectly fine but will, again, delete everything on your phone.