My SW revision is 123103 (= manufacturing date?)
I have the same problem: connecting..connecting, atmel id FFFFFF.
The unit is going from standby to ON when the update program is started.
And sometimes it asks for enter vrate:0 (on the screen)
Cable is ok, no shorts etc, I made 2 to be sure, with same results.
When I remove the 10 pins connector and place a loop between aux (4) and ground (1) , the update program takes a long time connecting.. and stops...