
If your Arlo camera is linked to the Arlo base station, the firmware update will normally happen automatically. In addition, the gadget should be turned on with at least a 15% battery charge. To minimise camera downtime, Arlo devices receive automatic firmware updates between 3 and 5 a.m. Minor upgrades come every three months, and large updates happen once a year on average.
When a firmware upgrade is in progress, you won't be able to see your camera in real time. The motion and sound detection will continue to function, and the Arlo camera will continue to record. When the Arlo firmware is updated, the front LED will glow alternately amber and blue. When your device is updated, it will re-sync with the base station, and the LED will rapidly become blue.
Read more @ arlo firmware update