ha?!?!! got it roll-back to original.
took out the battery 1st, plug-in the USB cable, then put-back the battery, and u'll able to see 'nokia' logo with USB logo on top-right, during that time, make sure hold-'U' key....
*i dunno why... but it required me few times to get into 'update-mode'.
once u get into update-mode... just follow the following step...

http://talk.maemo.org/showpost.php?p...5&postcount=64

*make sure u have PR1.3 firmware and flasher tools ready.