Which proprietary charger? I always had Xiaomi phones and they always use USB ports.

Xiaomi uses a proprietary charging protocol, I believe it is called Hypercharge. It also requires a proprietary cable with an extra pin/chip.

dobladov 7 hours ago | parent | next [-]

Also, it's only for fast charging, you can use any other charger or wire without an issue.

You can charge it just fine with regular usb-c charger. So not a problem.

	▲	retired 5 hours ago \| parent [-]
		At very limited charging speeds though. That goes against the USB-PD mandate.