Don't know if this will help but I have a phase1b and had to undo the anti-udate mod in able to force update after VOD came in.(Thanks to Edcase without who's help I wouldn't have done).
On mine there were a couple of wires on the underside of the board going from battery to a couple of other points. There was also a couple of tracks cut which are virtually impossible to see which needed to be re-soldered. I downloaded the pic from here and worked from that Apparently there were a few ways to do mod? After that force the update and it should go about scrolling through numbers on front and hey presto job done!
Also attached another thread where I got a bit of info about another way this is done.
http://www.world-of-digital.com/forums/showthread.php?t=34576&highlight=1000+anti+update