To check the device firmware and update if needed, is easy. Open the Centrios app, select Devices, select the device you wish to check firmware version, select Device Settings.
Scroll to the bottom of the settings screen. Firmware will state "Up to Date" or "Update Available". If available, select follow the on-screen instructions to download and install the firmware update.
New firmware is generally available when there is an update to the mobile app. Check all devices to ensure firmware is current.