I have AKG Y500 Bluetooth headphones that worked perfectly well with the Catalina OS. Upgraded (I think actually downgraded!) to Big Sur and ever since the headphones crackle if left to connect automatically. The only solution is to 'remove' them using Bluetooth options and then reinstate them when I want to use them again. Thought this was an upgrade but hey ho. Is there any solution to this?
Make sure you are completely up to date with Big Sur 11.6 there have been several bluetooth fixes from earlier Big Sur releases.
Hold Option+Shift and click on the Control Center icon top-right of the menu bar. Then click Bluetooth. There will be an option to Reset the Bluetooth Module, do that and see if it helps.
Download and run Etrecheck. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.
IMPORTANT:
Before running Etrecheck assign Full Disk Access to Etrecheck in the Etrecheck's Privacy preference pane so that it can get additional information from the Console and log files for the report:
Also click and read the About info to further permit full disk access.
Copy the report
and use the Additional Text button to include the report in your reply.
Then we can examine the report and see if we can determine what might be causing the problem.
My macOS is updated (Big Sur 11.6), did the reset to the Bluetooth Module.
Didn't help, the headphones continue to crackle if left to connect automatically.
Having the same problem after trying all of the fix suggestions. Also experiencing lagging mouse and interruptions on Zoom when using EarPods.
Problems with Bluetooth since moving to Big Sur
