If you're manually updating the device, be sure to double-check the serial number and firmware version. The device will not update if it is already running the most recent version.
You might be wondering how to double-check these particulars right now. Here are a few simple methods. The serial number of your devices may be found in two places: on the device's label and in the Arlo smartphone app.
To check the serial number, the manufacturer recommends using the mobile app. If you can't find it on the app and your device is offline, you can look up the information on the product label. The label's placement will differ depending on the device. Read more about arlo firmware update