as title, i have some battery pack 11/2019. I want to replace the battery cell. my aircraft's current firmware is 500 and i get the battery firmware update message, i ignored it and didn't update. So can I cold-swapping the battery cell? Do I need to roll back to firmware 100? After reverting to firmware 100, is the battery firmware sure to return to firmware 100 like aircraft firmware? thanks! Sorry my english is poor 
