When browsing the support portal, you will encounter complex filenames. Understanding them prevents catastrophic deployment errors. A typical AP-505 firmware string looks like this: ArubaInstant_Gemini_8.10.0.x_xxxx Denotes controllerless capabilities (AOS 8).
The AP-505 has a separate bootloader (U-Boot). You rarely update this. Firmware is the OS. Never confuse the two; installing a firmware file as a bootloader will brick the device.
Official firmware images are restricted to users with a valid support contract and can be found at:
A standard RJ-45 or Micro-USB console cable attached to the AP-505.
Always download the official Release Notes document matching your firmware version. It lists specific fixed bugs, known vulnerabilities, and deprecated features.
Aruba AP-505 is a Wi-Fi 6 (802.11ax) access point that operates on the ArubaOS (AOS)
(legitimately)