If you decide to downgrade from Froyo, you MUST completely wipe the device before you do so. I used Android's built-in wipe, but that resulted in multiple force closes on boot-up and the traditional android set-up walkthrough itself force-closed.
The only solution I found was to root the device and use the wipe device feature in Amon-Ra's recovery to completely wipe the device, cache, and dalvik-cache. It did the trick, and the phone started up with no issues at all.
The only solution I found was to root the device and use the wipe device feature in Amon-Ra's recovery to completely wipe the device, cache, and dalvik-cache. It did the trick, and the phone started up with no issues at all.