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Were currently blocked in our release, because the HoloLens 2 won't let us install our signed app via AppInstaller when not in developer mode... We have a website that displays a QR code with the correct ms-appinstaller link that should install the application. The app itself is deployed by our Azure pipeline:
Scanning the QR code with the HoloLens 2 opens up the AppInstaller. The installer gets stuck after a few seconds. Clicking it again shows the following message:
"For proper functioning of the app, try to launch a Windows app package"
This only shows up, when the HoloLens is not in developer mode. Everything works as intended in dev-mode. We do not intend on publishing this application to the Windows Store, the only way to update or download it should be our website.
Why can't we install the signed application?
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The HoloLens Development tag is specifically for programming questions. You're unlikely to find deployment experts here. You'll be better off opening a support ticket per https://learn.microsoft.com/en-us/hololens/hololens2-support#hololens-2-support
My guess is either that your HoloLens doesn't have App Installer capabilities enabled or that your HoloLens doesn't trust the cert that the appxbundle is signed with. If it's signed by your own CA you'll need to make sure that the cert is pushed down to the device.
See Install Apps on HoloLens 2 via App Installer (learn.microsoft.com) .
Thank you for the hint. I created a Support ticket.