Key fob failure help

[8MYROVER]

Within less than 2 weeks both key fobs on my O3 ceased to operate. Replaced batteries in both, still dead. Attempted to reprogram to vehicle, and it is not reading them. No internal damage or corrosion. Any ideas what would make them both fail dead as a door nail? Hate to go to the stealer for this issue. I have searched all the key fob postings and don't find anything regarding any special setting or other operations.