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KDFI fake FDTI usb Chip?

Verfasst: So Apr 23, 2017 3:22 pm
von ds23man
Hello all,

I am Dutch and running a KDFI setup on my 1973 Citroen DS 23IE. I tried to connect to the KDFI on my new laptop with Windows 10 and no luck ( device not recognized). If I connect to a other FTDI serial device everything is working fine. The KDFI still connects to my old Windows 7 laptop!

Maybe this is the problem:

https://rlogiacco.wordpress.com/2016/03 ... te-solved/

Anyone with a KDFI connected on a W10 machine?

Re: KDFI fake FDTI usb Chip?

Verfasst: Mo Apr 24, 2017 8:55 pm
von MK
I have several USB2Serial devices and used them on several laptops from win98 to win10.
On win7 there's no problem if you use old drivers and old cables. If you update the driver it may happen that formerly working cables turn into a dysfunctional 15 EUR piece of junk.

On win8 and win10 the old chips won't work. You'll need a new cable and the latest driver's .

In a nutshell: Profilic did that to make counterfeit chipsets worthless.
Here's a checktool which chipset you have:
http://www.prolific.com.tw/US/ShowProdu ... 25&pcid=41

As far as I know FTDI did the same, but I have no details on that.

Re: KDFI fake FDTI usb Chip?

Verfasst: Di Apr 25, 2017 7:28 am
von ds23man
The chip is on the KDFI 1.3 board. Will have to do trick installing the old drivers.

Re: KDFI fake FDTI usb Chip?

Verfasst: Mo Jul 16, 2018 11:30 am
von ds23man
Did anyone had succes connecting a KDFI 1.3 on a W10 computer?