Every time that the device is connected to the network, it will automatically check if there are any updates available for its firmware. If an update is found, the device will automatically update itself.
The front LEDs may flicker when this is happening, and the device may restart itself automatically. It is recommended that before using it for the first time, charge the unit for a few hours while connected with a cable to the network.
This will ensure that it will update itself to the latest firmware.