ultimate 2 bluetooth not connecting to pc

I bought an Ultimate 2 Bluetooth Yellow, and the cable was not working, so I returned it through Amazon and got a replacement right? Now the dongle is not working. I tried everything, updating, downgrading then updating again, tried all USB and USB C ports, but nothing. The Bluetooth works fine, but the dongle does not connect for anything. Bro it was so much trouble to get a refund on the first one, and now the replacement is also problematic. Omg bro I am tired, please help.