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How to solve uv printer “unrecognized USB device”?

1. Phenomenon description: The connection between the computer and the printer prompts “The USB device cannot be recognized”, which is displayed in the “Device Manager” 2. Reason analysis 1) The USB cable is of poor quality or damaged. 2) The power supply of the USB port is insufficient. Use a USB extension cable or connect to the front USB port of the computer to provide only a low current power supply. The computer can detect the device under low current conditions, but may not be able to maintain high-speed communication. 3) The driver is not installed or there is a problem with the installed driver. 4) The motherboards of some computers do not support USB2.0 well. 3. Solution 1) Buy a regular USB cable that meets the standard, and try not to use a USB cable. 2) Connect the data cable to the rear USB port of the computer, do not use an extension cable, and re-plug the USB cable to test. 3) Reinstall the printer driver test, please click here to view the driver installation method. 4. How to disable USB 2.0 devices on your computer? Method 1 to disable USB 2.0 devices: Disable the USB2.0 device in Device Manager. Method 1: “Device Manager” disables USB 2.0 devices. Right-click “My Computer” and select “Properties”, click “Hardware” and then select “Device Manager”, expand “Universal Serial Bus Controllers” and right-click USB2 to select “Disable” disables the USB 2.0 device. Method 2 to disable USB2.0 devices: Disable USB2.0 Supports in CMOS. Tip:

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