: This often indicates a driver version mismatch, common with Prolific chips. You may need to manually roll back to an older driver version.
Depending on your chip, you should download the driver from the official manufacturer's website to ensure security and compatibility:
To successfully download and install a driver for a adapter, you must first identify the specific chipset inside your device, as this determines which driver is required. The most common chips are manufactured by FTDI , Prolific , and Silicon Labs . 1. Identify Your Chipset
The "USB-to-COM" cable is an adapter that allows modern computers (which use USB) to communicate with older serial devices (which use RS-232/COM ports).
: Extremely common but often subject to "counterfeit" chip issues where newer drivers may not work with older or unofficial chips. Visit the Prolific Support page for official files.
: If you see this in Device Manager, right-click and select Update driver > Search automatically .
: Open Device Manager and expand the Ports (COM & LPT) section. You should see a listing such as "USB Serial Port (COM3)". Troubleshooting
