Ok, so I was running Lithium Mod NG, and flashed back to stock so I could try out a new ROM. I received the notification that the 2.2.1 OTA was available, so I downloaded it, and now I can't run z4root to re-root my phone. I've tried to flash back to recovery mode, but every time I do, I only make it as far as a black screen with a white triangle, with a yellow exclamation point in it. I can't access my nandroid backups or anything. On top of that, I'm getting FCs about once every 4 or 5 minutes, and my battery won't charge past 60%. I also can't uninstall SU, and obviously, I can't use ROM Manager to reboot into recovery, nor can I run Titanium Backup to perform any functions, since I don't have root. Please! Can ANYONE help me out at all?! Thanks.