@utubu uasi
Hi，
There is no problem when you use a DELL computer to connect our product, but there is a problem when connecting to Surface Laptop 3; then the problem still exists after upgrading the program, so it can be inferred that the problem is most likely on your Surface computer. It is recommended that you update the USB driver and try again.
The method is: connect the product to the computer, right-click this computer--Management--Device Manager--Universal Serial Bus Controllers--Check and update the installed USB drivers one by one
