USB Ports not working at all


I’ve just bought a Hi10x. I am plugging in devices (pen drives, a keyboard) into the USB ports but no device is recognizes. Nothing, absolutely nothing happens.

What’s the matter here? I am thinking about returning my device to Chuwi and never ever buy anything again from them.

Chuwi, any help here?

Thanks in advance.

I have over 20 Hi10Xs.
After a certain lot, a phenomenon that the device is not recognized by the USB port occurred, and when we investigated with a microscope, it seems that the positional relationship between the tablet housing and the USB connector has deteriorated.
Even if the USB cable was firmly inserted, it could not be recognized because it did not go all the way in. I scraped off the resin part of the USB cable to make the device recognized.