Comment by simne

If possible for exact this plane, could make software update just as routine procedure.

But as I hear, air transporters could buy planes in different configurations, so for example, Emirates airlines, or Lufthansa always buy planes with all features included, but small Asian airlines could buy limited configuration (even without some safety indicators).

So for Emirates or Lufthansa, will need one empty flight to home airport, but for small airline will need to flight to some large maintenance base (or to factory base) and wait in queue there (you could find in internet images of Boeing factory base with lot of grounded 737-MAXes few years ago).

So for Emirates or Lufthansa will be minimal impact to flights (just like replacement of bus), but for small airlines things could be much worse.