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USB Type-C has a new feature called Alternate Modes. If your USB-C cable has this feature, you can connect to non-USB devices that support the same Alternate Mode. For example, if your USB-C cable has the Thunderbolt Alternate Mode, you can connect to Thunderbolt devices. There's no setting to turn on—your device automatically uses the appropriate mode if it's supported. They can be multiple reasons why Windows is struggling to recognize USB-C. If the cable doesn’t support the USB C feature, similar to the connected device, you will face the problem. The issue will also occur if the device is connected to the incorrect USB C port. How do I fix my USB-C port not working?
Your PC has a low battery, so it has temporarily limited the amount of power it can provide to the device. NOT Support MHL mode phone/tablet,such as LG Google Nexus 5X/6P, LG Stylist/LG G6,LG V30, Google Pixel, Pixel2, ZTE/ZTE max pro Phone,Oneplus 2/3/3T/5T,Moto Z force,Dell Inspiron series tablet,Asus zenpad s8 64gb,Nintendo Switch,etcIf you have a USB-C analog audio adapter connected to your PC, unplug it, then connect a USB-C digital audio adapter instead.
If your Windows 10 phone is already running the latest version of Windows 10 Mobile, try to connect your device to a Windows 10 PC instead. Your PC (or phone) is providing power to other devices, so it has temporarily limited the power it provides to the device you just connected to. Dust or dirt inside the USB port on your device might be preventing the charger from being inserted correctly. Make sure your PC, the external display, and the cable all support DisplayPort or MHL alternate modes.
To charge faster, your PC (or phone), charger, and cable must all support the industry standards. Your charger and cable must also support the power levels your PC (or phone) requires for the faster charging. For example, if your PC requires 12V and 3A for the fastest charging, a 5V, 3A charger won’t give you the fastest charging. There's a driver in the device you connected to that isn't supported in the version of Windows 10 Mobile your phone is running. For information about the supported devices, see Universal Serial Bus (USB).
Make sure your PC (or phone), the external display, and the cable all support DisplayPort or MHL alternate modes. It is light in weight and compact in nature to easily carry it with you wherever you want. The best thing is that the hub is compatible with several devices offering USB-C features. As the matter of fact, chances of encountering this issue are more than the rest of the problems. The situation is always ignored by people.However, there will be two reasons causing this happening. This USB port doesn't support DisplayPort or Thunderbolt or MHL. Plug the USB device into a different USB port on your PC.
The USB device might have limited functionality when connected to this port. Plug the USB device into a different USB port on your PC. A. The connection from USB-C to the display has errors. It might be the adapter went down, the HDMI to HDMI cable is not good quality, the HDMI cable length is over 15ft, or the display goes faulty on refreshing rate(without any other connection), and there is appear that the host device (USB-C device) is not working well. Your PC (or phone) might not provide enough power to the USB device. Plug a power adapter into your USB device, or try to use a different PC (or phone).