I have four cams and maybe will add a few more (when an outdoor model becomes available). There should be an easier way to grant permission for a “system wide” firmware upgrade.
Right now you have to go into each camera and do the upgrade, after this is done, you need to switch to settings in the next camera and repeat; quite combersome.
This should be a one step process. Why would you want to upgrade firmware in one camera and not on another?