Warning - camplus requires camera firmware to be upgraded to latest if going from monthly to annual

I just tried to change a monthly subscription to annual on a V2 which has been running camplus (monthly) since it’s inception.
The camera is 800+ miles away. I have no access.
The switch to annual DROPPED the cam from camplus and I was informed I had a license to assign. But going to assign a camera seems to require upgrading the firmware.
I have had many bad experiences involving upgrading V2’s with SD cards in them, all which were fixed by physically unplugging which is not possible.
I saw no warning that upgrade from monthly to annual would require a firmware upgrade.