I have a rooted froyo 2.2.1 (rooted via the adb method) and can't seem to get the OTA update for gingerbread now. In following steps listed on this website and others, im trying to SPF flash the original 2.2.1 ROM and when using RSDLite v4.9 to do so, the flash failed and the phone is stuck on the 'SW Update, In Progress...' screen and it seems RSDLite now thinks my phone is just some engineering flash device. It's very strange.
Can someone tell me what I might try next? I'm afraid to even unplug the phone from USB.