How to update airMAX airOS firmware
Open the web user interface of your airOS 6 device (airMAX “M” Series devices)
Open the system tab and note the board version (XM or XW):
Go to the Ubiquiti Website (https://ui.com/downloads/) and select the AirMax M series downloads. Then select the Device you wish to upgrade and download the Firmware applicable to your board version (XW or XM):
Go back to the System tab of your device and upload the firmware to your device hat you just downloaded:
Once the Firmware has been uploaded, click the “update” button and wait for the device to update: