Prolific 3.3.2.105 💯 Real

It was released before Prolific implemented strict hardware validation checks that disable non-original chips.

Because Windows will automatically "update" this back to a non-working newer version, a specific manual process is required: Download and Run : Execute the driver installer for version 3.3.2.105. Device Manager : Right-click your PL2303 device and select Update Driver Manual Selection prolific 3.3.2.105

: Ensure the software is looking at the correct COM port (e.g., COM6) as assigned in the Device Manager. It was released before Prolific implemented strict hardware