Firmware Update

I activated my InReach mini today - everything has worked fine except the firmware update.  I was able to use InReach Sync on my Mac to successful sync my messages, contacts, etc - however - the firmware version remains at 2.70.  I have sync it 3 times - but the firmware is still 2.70.  How do I force InReach Sync to update to the latest firmware (which according the website is 2.80)