I tried switch on multiple time and it works only very few time. Are you able to add control over USB C where we can manually change beside auto logic?If you buy on Aliexpress, you warranty will be only with the Aliexpress seller. https://en.shanling.com/category/256
But of course I can give you some advice or troubleshooting on the MW200.
Anytime you connect MW200, you need to turn it on (even if it was turned on before) and once you start playing music, it should switch into USB DAC mode.
But if you are connecting to USB-C port, we got some reports that MW200 doesn't work with USB-C ports, if you use certain USB-C to USB-C cables.
Shanling controller app only works via Bluetooth.
Also can USB C to 3.5mm connector work? For example connect USB C end to MW200 and 3.5mm end to my phone.