正式なコメント

It's not just the version of the operating system, but also the hardware, and unfortunately there are simply too many different units on the market for them to acquire and test.
Some devices cannot be connected with XDJ-RX and RX2 using a USB cable, including any Android 6/7 devices. For those who cannot connect their devices to CDJ or XDJ, please use WiFi instead of a USB cable. This means you'll have to use the USB link driver to a computer for units such as the RX2, which do not have an ethernet port.