3G in DFU mode not recognized by Itunes.

[enakajah]

I have loaded 2.2.1 on my 3G This was not previously unlocked or jailbroken.

Went through the new Pwnagetool 2.2.5 and got into DFU mode.

The ITunes did nothing. Both the computer and phone sat there doing nothing.

Put it into recovery mode and Itunes came up and started to load the custom restore and got the Unknown error 21 .

Went back and put it into DFU and nothing. Unplugged the USB and plugged in and nothing.

Can someone tell me what I am doing wrong.

Thanks.

[jfaras]

I'm having the same problem. I've reset my phone to the standard config and have started over a few times, but I keep getting the same error.

[sistersugar]

Try powered usb hub for the entire process. OS X v10.5.6 caused the same probs for me. Powered usb hub solved all my problems.