I bought new batteries a few days ago. The first time I put them in the drone I got a message in the goggles it detect it's a new battery and said that I need to update the battery firmware, But it's the drone or maybe goggles that does the battery firmware update process, you don't have to connect dji fly or dji assistant, you just click ok and it's start the battery update and you can fly right after (maybe a reboot first). so normally you shouldn't have to update the glasses and b3yond should not be altered, at worst if you are not sure, reapply the patch.