next to the console port, there is a small hole, thats the reset button.
hold it down with a pin and power up the AP while reset button is pressed.
hold it for 10 sec. then when it boots up and cant find the controller, it will be an IAP which you then can upgrade with that version.
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Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba.
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