I'm using an iPhone 3G updated to 3.1.3 and iTunes on 22.214.171.124. USed to jailbreak when it was at 3.0, before updating it to 3.1.3 and never jailbreak it since then. Problems I'm facing currently are: 1) Whenever I sync the iPhone, it won't wtop synchronizing with iTunes. I've tried everything, deleting all mp3s, videos, even untick all infos, but nothing seems to work. It just remains at synchronizing until I forced un-sync the phone. Problem is, sometimes ti isn't properl synchronized and I'm afraid it will ruin the phone. 2) I tried to hard-reset the phone but everytime I try it, it goes back to it's normal state before hard-reset. And yes, I've googled methods for hard-resetting and tried all types of hard-reset, but nothing seems to work. Please advise me on this matter as I don't want to end up with a useless device in my pocket. Thank you.