Well... I have MB model ipod touch 2G (jailbroken), and it's on firmware 3.1.2, currently. I haven't upgraded it to 3.1.3 or 4.0, (actually I didn't even know they existed.) But, one day, a problem started. Whenever I close an app, it goes to safe mode. It applied to every apps, even Settings... So, I tried to restore it and JB again, but I couldn't restore it from 3.1.2 to 3.1.2 FW with iTunes 9.2. I looked at other threads, and tried [editing hosts files], [TinyUnbrella(which only works for MC, so I failed)], and reinstalling different versions of iTunes several times, and rebooting, and re-JB... Everything failed. and I got some questions... if Tinyunbrella only works for MC, does it mean that MB doesn't have to have SHSH blobs? I certainly didn't upgrade to 4.0, but when I clicked "Make my life easier" in Cydia, it showed that My SHSH version saved is :4.0... which I never had. I tried everything... please help...... 1. I want to restore to 3.1.2, which is my current FW; I never upgraded to higher FW. 2. ipod goes to safe mode whenever I close my apps: any apps, not just cracked ones.