I have already written about the error HMS-0500-0500-0001-0007 after the update. After rolling back the firmware, I continued to use Orca Slicer. But... I realized that I don't use that many features of Orca. And the notification about the availability of an update on the printer has started to annoy me during this time.

So I finished printing a batch on Orca, updated the printer, and calibrated the plastic (I still had to fiddle a bit with the Bambu Studio interface).

In fact, I personally do not see the need to stay on an older version of the software (for the possibility of using third-party slicers).