Upgrade IPhone to OS 3.0 beta, resolved error 1012, 1064

We upgrade our IPhone SDK, IPhone OS to 3.0 beta today. It was easy to upgrade IPhone SDK, but for IPhone OS, it was OK for IPhone 3G, but we spent the whole afternoon for upgrading IPhone 2G, we ran into error again and again, with different error code 1012, 1064. Finally, we fingered out, the IPhone need to be put in DFU mode, please check this link:

http://www.iclarified.com/entry/index.php?enid=1034

Basically:

1. Open iTunes and connect the iPhone to your Mac.

2. Press and hold the Home button and the Sleep/Wake button at the same time.

3. After exactly 10 seconds release the Sleep/Wake button. Continue holding the home button until you iTunes pops up a message telling you that it has detected an iPhone in recovery mode.

4. Restore.

Hope this works for you. Good luck!