issue releasing bluetooth daemon service

[gnaarald]

Describe the bug
in raspberry 4b the bluetooth daemon disabling using sudo systemctl disable bluetooth
does not release the resource to be used by hciconfig

To Reproduce
Steps to reproduce the behavior:

1. sudo systemctl disable bluetooth
2. systemctl status bluetooth.service
3. observe the UP RUNNING status

Expected behavior
in step 3 expecting to see DOWN

Desktop (please complete the following information):

• OS: raspbian
• Version 5.4.79

Additional context
looks like the stopping alone still keeps the daemon, but these steps resolved the issue for me:

• sudo systemctl stop bluetooth.service
• sudo systemctl disable bluetooth.service
  to check:
• systemctl status bluetooth.service or hciconfig hci0

[FuturityUK]

Hi Gnaarald,
I also came up with the same solution.
Shame I didn't look at this Issues page first.
Neil