Upgrade device firmware

As long as your ALTAIR has been setup in your home network, it will download and upgrade to the latest firmware automatically, even it is currently used as a stand-alone DAC. 

If you have never setup your ALTAIR as a streamer, the device will not be able to upgrade automatically. Please configure your ALTAIR to join your home network to receive updates.

After ALTAIR has been configured to join your home network, it will check new firmware and upgrade automatically from time to time without need of user's attention.