@Jason K Yes, you do not need to use the USB-A port, you just need to connect this product port c to your laptop, then Adapter hmdi port connected to another monitor, and finally download the inst...

I was referring to the "EP program upgrade". Don't I need to connect the hub to my Windows PC with a USB-A to USB-C cable (USB-A at PC, USB-C at hub)?   I bought it end of 2021 from Amazon.

Usually the installation step is to connect a Windows computer, connect only one HDMI port cable on the product, if you can recognize the display, then you can upgrade. When did you buy this produ...

Well, my computer does not have USB-A ports (that is why I bought the hub), and connecting it using a USB-A to USB-C adaptor does not work. "USB has been removed!"

Hi，Here are links to two updates. You download first and then try to install the first one if it doesn't solve your problem. Please install the second one. https://cdn.shopify.com/s/files/1/0660/6...

There is no serial number. See photos.  

Hi，It does not refer to the serial number of the box, but to the serial number of the product (usually on the back of the product, you can send us a photo.)

I have tried the other two methods and the problem did not go away. The serial number on the box is X001783W89.

@Jason K Hi，This means that you provide the product SN number and then update the corresponding program. If you don't know how to operate, you can try the other two methods first.

@Maxime Jaconelli Hi，Maybe you can try connecting with another computer model, because there may be a compatibility issue.