This indicates that the Pro’s memory is full. Please do all of your data’s backup BEFORE attempting the following as the data will be permanently deleted:
You have done all of your backups;
Click on the HW SETUP tab at the top of the CRA SW page
Then click on REWIND MONITOR
Once it is done, unplug the monitor and connect the Pro to the App.
Schedule a mock 24 hours test with the app. The light should blink green. You can override the ongoing measurement by scheduling a new one at any time.