There are two USB dongles on my Orange Pi One box, one is a USB Bluetooth in USB-OTG port and other is a mu7601 USB WiFi in the USB port. When I switched it from legacy kernel to lastest development kernel 4.11.x, the bluetooth card disappeared. So I exchange two dongles each other , the one in USB port works, and the one in USB-OTG port always failed.   Is there any solution?