Aruba uses a specific schema. For the AP-635 (Wi-Fi 6E), you need versions 8.10.x.x or higher (since 6 GHz support debuted in AOS 8.10).
Disclaimer: Ensure you have a valid backup of your configuration before performing any firmware updates. HPE Aruba networking equipment should only be managed by qualified personnel. aruba ap 635 firmware download upd
To ensure network availability, execute the following checks before initiating the upd process: Aruba uses a specific schema