Change USB to Serial Com port

See how to change USB to Serial Com port. If you are attempting to connect to a device using a USB to serial comm port. It is best to explain how to accomplish this task. However, the COM port is missing, and the ports option is unavailable in Device Manager. Despite this, you may not be able to seamlessly connect and use my phone/modem with the computer. Let’s open Device Manager to investigate further. See also the hardware ID codes such as usb\vid_0403&pid_6001&rev_0600 as well as usb\vid_0a12&pid_0001&rev_8891.

Change USB to Serial Com port

It seems you’re trying to connect to a device using a USB to serial comm port, but you’re unable to find the COM port in Device Manager. Likewise see also the Prolific USB to Serial Driver as well as the USB to RS232 Driver articles on this website. Here’s what you can do:

  • Open Device Manager.
  • Look for any devices with exclamation marks or labeled as “Other devices” or “Unknown devices.” These may indicate your USB to serial comm port device.
  • If you find such a device, right-click on it and select “Update driver.”
  • Choose “Search automatically for updated driver software” and let Windows search for and install the necessary drivers.
  • If Windows is unable to find the drivers automatically, you may need to manually install them. In that case, follow the steps mentioned earlier to manually add legacy hardware for the COM port.
  • Once the drivers are installed, the COM port should appear in Device Manager, allowing you to connect to your device. Let me know if you need further assistance!
See also  Working principles of RS485

Lastly see also the Serial Port Cards as well as the Prolific USB to Serial Comm Port Driver.

Additional COM port issues

The COM port should be listed in Device Manager under Ports (COM & LPT). See if you can find them. If they’re not listed in the Device Manager, you can try these suggestions to see why the ports aren’t showing up.

Method 1: Check for hidden devices as below and see if it helps.

First, press Windows+X and click on Device Manager. Then, click on the View menu and select Show hidden devices. See if this helps in getting the ports to show up.

Method 2: Install the latest drivers for your motherboard and see if this helps.

Similar, buy a Startech ICUSB1284 6-foot cable to your printer, and Windows automatically detected the printer once you connected it to a USB 2 port. The printer is working fine, but you’re unsure which LPT port it’s using. Lastly see also the Prolific USB to Serial Comm Port on here as well as the Cant access WD (Western Digital) SES.