Finally, my Airpods Pro updated its own firware version to the latest 6B32 with adaptive sound mode control during a normal case charging even without myself noticing meanwhile I was about to develope a short writeup on ways to update firmware version manually if Airpods series does not update automatically when there are no viable network connections; but apparently at this phase it is needless.

And my Airpods case has finally arrived after an anxious delivery delay wait time just now! #daily #dev