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1, try to plug the mobile hard disk into the USB interface behind the computer to solve the problem of insufficient power supply. Because the front USB port is connected with a long data cable, there is often insufficient power supply.

2. Maybe the system USB controller is out of order. An error occurred in the universal serial controller in the device manager due to multiple connection failures. Please check and refresh it in Device Manager.

3. It may also be the quality problem of damaged (damaged) mobile hard disk.

It may be caused by a virus that can't be opened. You can right-click-My Computer-Management-Disk Management. Open the flash drive from the inside.