Would you like help identifying whether your adapter has a genuine or counterfeit PL2303 chip?
This guide explains where to safely obtain Prolific USB-to-Serial Comm Port driver version 3.2.0.0 (released in 2021), how to install it on Windows, verify the device, and resolve common problems (including signature enforcement, compatibility, and counterfeit chip issues). It also includes rollback/uninstall steps and security considerations.
How to Download and Install Prolific USB-to-Serial Driver Version 3.2.0.0 prolific usb to serial comm port version 32 00 download 2021
The definitive workaround to restore your hardware is to roll back to the stable . This guide covers why this error happens, where to safely find the driver, and step-by-step instructions to get your hardware communication back online. Why Version 3.2.0.0 is the Universal Fix
The Prolific USB to Serial Comm Port version 32.00 is a highly sought-after driver that offers several features and improvements over its predecessors. Some of the key features of this version include: Would you like help identifying whether your adapter
, right-click the Prolific device under "Ports (COM & LPT)," select Uninstall device , and check "Delete the driver software for this device". Disconnect the Device : Unplug your USB-to-Serial adapter. Run the Installer : Install the 3.2.0.0 driver from the downloaded file. Force the Old Driver Plug the device back in. It may still show an error. Right-click it in Device Manager Update Driver Browse my computer for drivers
If your adapter is blocked by v3.2.0.0:
Some software programs cannot read COM ports numbered higher than COM4. If your device manager assigned it COM12, open the port properties, go to Port Settings > Advanced , and change the COM Port Number to a lower available slot.
Open and find your Prolific adapter under Ports (COM & LPT) . Right-click the device and choose Update driver . Click "Browse my computer for drivers" . How to Download and Install Prolific USB-to-Serial Driver
Disconnect the USB-to-Serial cable from your computer.