Mini-Review - 5442-ZE-S3 AKA T54IR-ZE-S3 - Replacement to 5442-ZE

You can just factory reset by pushing the button or doing it in the camera GUI.

Most here would opt for the button if possible.

Kicks and grins - meaning most here only update IF the release notes say it fixes a problem they have - so if your camera is working properly, don't update it just to be on newer firmware. We have threads every week where an update removes a feature someone was using.
Yeah, getting to the reset button can be a pain sometimes and even when you get to it you will have to realign your camera again. I know some have theirs installed very high up, second floor...