prolific usb to serial comm port com5 fix

Windows XP, 2000, ME, and 98 include a function that allows you to reassign the COM port. If the adapter is installed on COM5, a device with such a limitation will not work until the COM port is reassigned to COM1 - COM4. Sometimes a device won't work with the USB-to-Serial adapter even though everything appears to have installed correctly because some computers will only scan a limited number of COM ports.įor instance, it is possible that a computers has a limitation of scanning the first four COM ports. It is also possible that the COM port number assigned is too high. Update your computer's drivers using DriverMax, the free driver update tool - Ports - Prolific - Prolific USB-to-Serial Comm Port Computer Driver Updates.Prolific USB-to-Serial Comm is assigned to COM12 Updating the Drivers from Device Manager. Assuming you’ve successfully downloaded and unzipped the Profilic Windows 8/8.1 圆4bit drivers from our Administrative Tools section, go back to the Device Manager and right click on the Prolific USB-to-Serial Comm Port with the exclamation mark and select Update Driver Software: Figure 3. Driver Date:: Release Notes: Driver Version: 3.8.25.0: PC Matic Notes: Version History. Prolific USB-to-Serial Comm Port (COM3) - Driver Download. Click Sites and then add these website addresses one at a time to the list: You can only add one address at a time and you must click Add after each one. On the Security tab, click the Trusted Sites icon.

In Internet Explorer, click Tools, and then click Internet Options.

The reason is that Prolific USB/Serial chip 'clones' are often used in generic USB programming cables and the newer Windows drivers actual. I am using a driver version 3.3.2.105 (you do not need to install in compatibility mode). I can confirm that the older drivers do work.

Prolific usb to serial comm port com5 fix