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<p>https://askubuntu.com/questions/1032417/ubuntu-18-04-lts-bluetooth-0cf33004-discovery-not-working</p>
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sudo apt install git build-essential dkms
git clone https://github.com/jeremyb31/newbtfix-4.15.git
sudo dkms add ./newbtfix-4.15
sudo dkms install btusb/4.0
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