If a Windows or driver update broke functionality, you can roll back to a previous version.
If the patched driver does not resolve the issue, consider these alternative troubleshooting paths:
Mike nodded, "I thought that might be it. But how do I fix it?" jxmcu driver patched
Identify the specific USB-to-serial chip on your JXMCU board (look at the writing on the smallest square/rectangular chip near the USB port). It is usually a , CH341 , or PL2303 .
: Official drivers for older chips often lack support for Windows 10 or 11 , leading to "Device cannot start" errors. If a Windows or driver update broke functionality,
To use the patched driver effectively, follow this sequence:
Look through the list and select the older or patched version (e.g., Prolific driver version from 2008 or 2009). Click to apply. Preventing Windows Update from Overwriting the Patch It is usually a , CH341 , or PL2303
This guide addresses driver issues as of mid-2026. For the latest stability, ensure your PLC programming software (GX Works2/3) is also updated. If you'd like, I can:
Click on in the top menu and select Show hidden devices .
Do not let Windows automatically search for a driver, as it will simply re-download the broken version.