It seems like the cam has an incomplete update download that has not been executed and isn’t allowing for another update or flash. This may need to be purged before retrying.
My next step would be to do a factory reset and new setup (don’t delete from the app). Then I would again attempt the firmware update. If it fails again, I would factory reset again and try a flash update prior to any reinstall. I am always careful to only use a high quality name brand 32GB SD Card that has been freshly formatted.