This issue is caused when Microsoft Windows does not properly detect the chipset or videodisplay.

  1. If you have to manually install a driver for the device — perhaps the driver is already installed on your system — you can use the Update Driver button in the device’s Properties window. If the device driver is already installed on your system, click the “Browse my computer for driver software” link and choose an installed driver.
  2. Connect personal audio cable into accessory port. Connect personal audio cable into accessory port. S witch processor off and back on or press increase/decrease buttons until EA appears. Www.cochlear.com Mains Isolation Cable For use with any audio / video device with headphone jack, household electrical or battery operated.
  3. This issue might have occurred due to corrupted/ outdated drivers after upgrading to Windows 10. Try the below troubleshooting steps and check if it helps. Step 1: I suggest you to run Hardware and Devices troubleshooter checks for common problems and makes sure that any new device or hardware connected to your PC is installed correctly.

Cochlear Port Devices Driver

Corrupt or missing motherboard or chipset drivers

Cochlear Port Devices driver

From the list of devices, select USB Audio Device. Make sure that the 'Location' field below the list shows the name of the Korg USB MIDI Device, and click the Properties button. The 'USB Audio Device Properties' dialog box will appear. Click the Driver tab, and then click the Update Driver button.

Cochlear Port Devices Drivers

Download and install the latest chipset and video card drivers. If you or someone you know built your computer, it came with the motherboard CD. This CD contains the chipset drivers. Otherwise, you can find drivers for all the major chipsets on our motherboard drivers page.

Corrupt or missing video card drivers

If installing the latest chipset or motherboard drivers doesn't resolve your issue, make sure you have the latest drivers installed for your video card. For a listing of video card drivers, see our video card drivers page.

Other PCI device that Windows cannot identify

If you tried the above two steps and your Windows Device Manager still contains an Unknown PCI device, likely the device cannot be identified.

If you that the device not being identified is installed, we suggest you obtain the latest drivers for that device. A listing of drivers is on our drivers page.

If you have recently finished installing or reinstalling Windows onto the computer and are getting the unknown PCI device, we suggest you manually identify the PCI device through the registry.

Additional information

  • See the PCI and drivers definition for further information and related links.
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