Hi, My s/n both start 1709A and do not have the FCC ID on them , in place it says 136-174MHz and 400-470MHz. I have had mine for a couple of years so I assume yours are newer. Just looked it up , I purchased mine in Oct and Nov 2017 via Amazon. With that logic does that mean the first digits are the year and possibly month of manufacture? i.e yours are jan 2019 and mine Aug 2017?
Had the same write error as the first post on my Windows 10 Desktop, reloaded everything straight to a Windows 10 laptop and success first time--weird error, ports were low numbers??? No idea what the problem is but it is now working fine (on my laptop).
Lots of people are running it on W10 x64. The problem does not seem to be related to W10, either 32 or 64 bit.
Some people find they have to use a different USB port, so the problem is possibly in the driver that does not support some newer USB hardware.
I didn't write the driver. Its from a project called LibWDI
The installer I'm using was compiled ages ago by someone else, and I guess I should attempt to rebuild it, but its not top of my very long To Do list as it works for 99% of people