Why is AirPods Pro no longer compatible with iOS 12?
For months I used my AirPods Pro with my old iPhone 6, which has iOS 12.4.8. Suddenly, it no longer connects and requires an update that's not available with the phone. Is there a work-around?
AirPods Pro have always required iOS 13.2 or later to set up.
Possibly you can use them in this limited way with your iPhone 6.