I fixed the USB port connecting and disconnecting by replacing the USB port. I fixed the power+volume buttons not working by replacing the entire connector. T

I fixed the USB port connecting and disconnecting by replacing the USB port. I fixed the power+volume buttons not working by replacing the entire connector. The Bluetooth issue remains as I haven't looked into exactly which parts are responsible for it or how to fix it. I can try to keep at it forever but it's an uphill battle. I can keep replacing parts on the Pixel 3, but one day the motherboard might die. Unfortunately, I don't want to purchase a hot air rework station and handle reflowing those chips as the pitch of the joints is too fine.