Yep, I know fondly of this problem, now that I have looked in these forums for the past 6 pages on this error. Had 2.2.1 jailbroken tethered, rebooted without an 1-click booter program, and now I get the USB unrecognized, etc etc. I have tried opening iTunes and plugging in my iPod, then doing the DFU method, 10 sec both buttons, 8-10 sec just home button. No DFU mode comes on. No sound of the chime. I tried this 5 times in a row, no luck. I used this guide: http://www.ifans.com/forums/showthread.php?t=137646 So can anyone help walk me through this? I am restoring and waiting for an untethered, simply because this is a pain in the butt. EPIC CRAZY FIX! LOL Never mind this thread. I just had to research into 'precise' timing, EXACTLY 10 seconds from both, then only home button, finally hearing a chime. Now restoring to original 2.2.1 firmware, and waiting for an untethered. I was very stupid, both for timing and for making this thread. Phew!