How to upgrade the firmware for Axis cameras
Download the firmware to your computer. Log in to the camera as an administrator putting it's IP address in URL. Go to Settings > System > Maintenance in the camera's web page.
Then press the button 'Select file' that you had downloaded and clisk 'Upgrade' button:
Please, be advised that the upgrade may take a while. During this process, please do not turn off power to the device. When the upgrade is finished, the product will restart automatically.