in your upgrade instruction (JCATUSBFEMTO_FW20) you write in your pdf-file:
"• Run STARTUPDATE.exe file and press any key to continue (do NOT
interrupt the process)"
Sorry, but there is no such file!
In folder "2PORTS" you have a readme.txt with quite different instructions
In folder "1PORT" you have no readme.txt instructions.
A little bit confusing! Could you please give some clear instructions?