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This runbook is about bluetooth connection debugging on laptops. | ||
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## Check for running daemon | ||
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systemctl status bluetooth.service | ||
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## Check for interface status | ||
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hciconfig hci | ||
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If interface is `DOWN` try to bring it | ||
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hciconfig hci0 up | ||
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Resetting the interface can also help | ||
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hciconfig hci0 reset | ||
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## Check for missing firmware | ||
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You might be missing firmware if you get a `file does not exist` on `hciconfig hci0 up`. | ||
To check for a missing firmware error: | ||
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journalctl | grep -i firmware | ||
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If this is the case download the firmware from your Linux distro / the vendor and put it in | ||
`/lib/firmware`. |