Data for your new device is not available until the first night after you update your serial number and device number and use your device. If you already used your device for the first night but you don't see data, first try resyncing the data.  If that does not work, check that: Your CPAP device is turned on and plugged into power Bluetooth is enabled on your CPAP device You have a good WIFI or cellular signal on your phone The serial number in MySleepDash matches what is on the bottom of your device