Open https://box.orlandoviols.com/ with your login, and device settings/expert settings, and check your firmware version at the end - since 2020-10 there is a button for updating if you don’t have the most recent version…
The full manual is in https://github.com/gisogrimm/ovbox/wiki/Installation
Don’t update on the terminal but create a new SD card for now. The update process is not stable enough.