Hi. I use the WTT 2.14 app with an USB-OBDII cable on WINDOWS7. The cable ist fron this shop. No problems at all! Now I have to change the laptop and the operating system to WINDOWS10. But it doesn't work.
What can I do? A new driver? A new WTT app e.g. WTT3.x?
Thanks in advance.
24th Aug 2021 12:50 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4935
Hi and welcome.
It will work on W10 you just have to do a small bit of lateral thinking
If I recall correctly you need to open the "Device Manager" > then tick "View" > then tick "Show Hidden Devices"
This should open the USB/COM port list showing the assigned numbers for each port. Click on each port number, eg (COM 3) (COM 4) (COM5) etc.
Now open up WTT and click "Extras" > COM PORT and a window should appear with a COM Port selected eg (COM 3) >Click "OK"
If it says "COM Port not available" unplug the adapter and move to the next USB port and repeat the last step above (in blue). A different COM Port will appear in the window, so click on it and see if it will accept that. If not move to the next USB until you find one acceptable.
This is from memory (not the best I'm afraid) so hopefully it's not the recipe for scrambled eggs I have given you!
It doesn't really work. I'm shure it was up to me.
Anyway I found the right driver for the converter cable. Inside the adapter there is an FT232 IC. And the driver for this USB- K-L interface is downloadable on the FTDI Chip - site:
Member Since: 06 Mar 2017
Location: Lost
Posts: 4935
Interesting, but I've never had to look for the driver. yµ (idµ - eAµ) ψ=mψ
24th Aug 2021 6:26 pm
discobob1980
Member Since: 22 Aug 2021
Location: Chorley
Posts: 30
Frisian Driver wrote:
@ PROFSR G: Thank You!
It doesn't really work. I'm shure it was up to me.
Anyway I found the right driver for the converter cable. Inside the adapter there is an FT232 IC. And the driver for this USB- K-L interface is downloadable on the FTDI Chip - site:
You have to click the [Stop Diagnose] button befor exit the WTT programm! Otherwise in many cases the next time you open WTT you can't start [Start Diagnose] the diagnostic part. In this situation click the [Stop Diagnose] and then click the [Start Diagnose].
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