Hi,
When I had to reset my switch, I had to hold the reset button for quite a while, more than 5 seconds.
It might be worth unplugging the switch from power , for at least 30 seconds, then attempting one more factory reset , as per attached screenshot ( see highlighted part at bottom end of screen shot).
If that does not work, I'd suggest trying to contact HP support via one of the phone numbers of this page:
https://www.arubainstanton.com/contact-support/#contact
Or here : https://www.hpe.com/contact
Travis.
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Travis Thorne
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