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Android kiosk screen flickering with “Access Denied” in Hexnode

Android kiosk screen flickering with “Access Denied” in HexnodeSolved

Participant

10 hours ago

An Android tablet managed with Hexnode is locked in kiosk mode and the screen keeps flickering/flashing. It also shows the message: “Access Denied. You’ll be redirected back shortly.”

The device has app allowlisting enabled because we need our custom enterprise app to update automatically. After checking the device, there are a lot of blocked packages listed, so I suspect one of them is being blocked while the kiosk app is trying to run. Is removing allowlisting the only fix, or is there a better way to stop the flickering and access denied loop?

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mary_romero

Hexnode Expert

28 minutes ago

Marked SolutionPending Review

This usually happens when an app or service required by the kiosk workflow is not allowed to run. In Android kiosk mode, Hexnode blocks apps outside the permitted kiosk configuration. If a required package launches in the background and is blocked, the device may briefly show the “Access Denied” message and return to the kiosk app, which can look like screen flickering.

If allowlisting is not required for your setup, removing the allowlisting configuration from the policy can prevent these background blocks. However, if you need allowlisting for enterprise app updates, you can keep it enabled and add the required blocked packages as Background Apps.

Recommended steps:

Reproduce the issue on the kiosk device.
Run a Scan Device action from Hexnode.
Open the device in Manage and go to the Applications tab.
Check the Blocked Packages section for recently blocked package IDs.
Add the required package to Hexnode using its bundle/package ID.
Go to Policy > Kiosk Settings > Android Kiosk Lockdown > Background Apps.
Add the required package under Background Apps and save the policy.

Only packages that are actually needed by the kiosk app or its update workflow should be added as Background Apps. Avoid adding unrelated blocked packages unless they are confirmed dependencies.

Regards,
Mary Romero

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Android kiosk screen flickering with “Access Denied” in HexnodeSolved

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