[Elecraft] PC not finding KUSB port

[Kenneth Talbott]

Looks like you are a victim of Prolific's end-of-life for certain pirated part numbers.  Any driver later than version 1.4 checks the chip ID and refuses to start (Error 10 Cannot Start) for 2303 parts HXA (and probably others).  Easy workaround is to MANUALLY  install version 1.4 of the Prolific driver.  When cable refuses to start (yellow mark, Error 10) you can then MANUALLY update (downgrade) the driver by selecting from the list of installed drivers.  BTW, this is a Windows 8 issue, XP apparently never tries to update to the rev 1.8 driver.  Email me off-list and I will try to remember the details.  The actual key-by-key instructions vary depending the OS version.  Perhaps others with more current experience can help.

Ken - ke4rg at arrl.net

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dennis L. Haarsager
Sent: Saturday, January 24, 2015 8:48 PM
To: Elecraft at mailman.qth.net
Subject: [Elecraft] PC not finding KUSB port

I'm doing firmware updates this weekend, and my KX3 and PX3 went fine after installing the device driver using the KXUSB cable and a laptop running Windows 8.1 Pro 64-bit.  <snip>