Hi Serra, Gabriele,
Please note that this is a user-to-user support forum. Moderators, contributors including external Microsoft employees cannot directly intervene in Microsoft product features or access back-end systems. My role is limited to providing technical guidance on reported issues, requests, or ideas.
I understand that would be wonderful if we could reuse and repurpose electronic devices, giving them a second life instead of letting them go to waste.
From what you shared, without the Surface Hub Administrator credentials you won’t be able to follow the standard reset path from the Settings experience. Additionally, the Surface Recovery Image download page isn’t the intended channel for Surface Hub v1 recovery, so the serial-number error you see there aligns with using a workflow that doesn’t apply to this device family.
The practical next steps are contact the former company / IT admins to remove the Hub from management/tenant and provide the required admin access (and BitLocker key if applicable).
In the meantime, please try to check out and follow this guideline Use the Surface Hub Recovery Tool for Surface Hub v1 - Surface Hub | Microsoft Learn
I hope the process goes smoothly. Thank you so much for your understanding.
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