Hi! I was able to select Quest just fine in Unity's Build Settings - Android - "Run Device" selection while being USB-connected (I have Developer Mode enabled on Quest etc.). Now however, Quest won't show up anymore in that list, even after restarting the PC, the Headset, as well as clicking Refresh on the list or changing to a different USB socket. (The USB connection itself works, as I can see the battery status change when plugging in.) What can I do? Thanks!
first check if adb can see it using "adb devices" command. if you don't have adb you will need to download it, it's small and standalone. if this can see it then it's a problem with unity, if it can't then there is a problem with the connection. I have noticed that PC-USB ports don't charge the quest up enough so try plugging it into the wall for half an hour.