Drifter! Thank you for your concern (^_^)
I already upgraded AS to 4.1 it can sync with all my PPC.
I also can upgrade my X50v 2003SE from A4 to A5, however, I still can't upgrade to WM 5.0 .
Somethings on PC has interrupted update utility....
I followed on-screen instruction, after the first hard reset it forced me to align screen in 2003 SE. On PC, it stopped responding here:
sometimes it shows;
I used sync cable with AC Adapter already, don't know why I can't.....
Thank you for any suggestion(^_^)