Hey, thanks for posting the question. Happy to help.
Please remove the policy from the device and restart the device to exit from the conference room display mode.
Kindly follow the below steps to remove the policy from the device:
1.login to your Hexnode portal.
2. Navigate to Manage–>Devices
3. Click on the device from which the policy is to be removed. You will be directed to the device summary page.
4. Click on the Policies subtab and remove the policy by clicking on the trash icon.
PS:-> If the policy is associated to a device group, you’ll have to remove the device from the device group.
->If the policy is associated with a dynamic device group, then you cannot remove the policy from the device.
Kindly use the link for a reference.