hi, my brother's iphone 3g is at 3.1.3. he uses a PC to sync with iTunes. He wants to jailbreak so right now we are trying to jb with jailbreakme. Problem: iPhone is not letting him backup correctly. It takes 2 hours to backup and sync and when it's done it doesn't seem to have worked. wifi is NOT current;y working and he has tried restoring and even tried updating to 4.1 with no results. My suggestion is to either try restoring from dfu or to maybe try syncing with my mac. Any suggestions?