Do I need to upgrade my firmware?

Only if you meet the criteria below:

Z2 Auto Firmware 2.1.0.9 for iPhone 11 Users Trying to Connect to Nitelog

June 1, 2020 – Breas Medical announces the release of Z2 Auto Firmware 2.1.0.9. The new firmware corrects a connection issue between the iPhone 11 and the Z1 and Z2 Autos to Nitelog for devices manufactured before June 2020. Only these patients need the upgrade. Upgrade to the new firmware is not necessary unless you have an iPhone 11. It does not affect the performance or functionality of the Z1 or Z2.  All Z2 Auto CPAPs manufactured after  June 1, 2020 will have the new firmware already installed. Click on link below for more information. https://breas.us/z1-z2-firmware-upgrade/