The AP-505 is a "unified" access point, meaning the same hardware runs different firmware depending on your management style:
The AP-505 is a newer generation device. It generally requires a to function. If you try to downgrade to an older legacy version used by AP-305s or 205s, the device will fail to boot or join the controller. Final Verdict aruba ap 505 firmware top
For the AP-505, the firmware files are usually labeled under the "Orion" image family. The AP-505 is a "unified" access point, meaning