Hi Ken,
A bit late I see, but my best advice is to search for the best USB to serial converter for Synscan upgrade (I think its a prolific or Belkin)....
I basically boat anchored my Synscan handset the day after I bought it when I tried to update it with my USB to serial converter...
When I used the home PC's PROPER Serial DB9 port, it magically updated like it should and became working again....so....
Rule 1: Use a native DB9 (old) serial port for the upgrade.
Rule 2: If no Rule 1 exists, buy a PROPER USB to serial converter. Search here on IIS to see the preferred (read: working) USB to serial adaptors out there.
The Chinese clone P.O.S. USB to serial I had now resides in the proverbial backyard after it was thrown somehow through the window you mentioned in your post.
"Universal" Serial Bus seems to be a misnomer.....as we all know.....
Cheers
Chris
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