Dzerfas wrote: ↑
Jun 25, 2018 9:41 pm
I NEED HELP! PPLLEEEAAASSEE!
I have been trying to connect to my 72V 100A Sabvotron controller for almost a month!
My windows 10 laptop gives me a "Device descriptor request failed".
I have ran every diagnostic tool and even had to disengage windows control over unsigned drivers (ch341.exe).
It seems windows views the controller as a device rather then a serial connection via USB.
The red light is on on the contoller and green light stays off.
The throttle, ignition and speed control all work fine (no load).
I have tried three usb cables and spent countless hours in front of my laptop.
I will be happy to donate to charity or even your pay pal account if you can solve my issue. I am that desperate!!!!
Cheers and thank you!
Try uninstalling the drivers, and then going here > http://www.wch.cn/products/CH341.html
which is the manufacturers website, and downloading/installing (CH341SER.EXE) the drivers there.