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How to lockdown your devices onto Digital Signage Kiosk

Digital signage kiosk helps in addressing people at airports, malls, streets, and other public places in an easier way. It transforms your Android devices onto images/video streaming screens, which enables you to play the media files in loops.

You can also trim, mute, and add custom background music to your videos. Transmission speed and animations can also be added, which helps in transforming your ideas into virtual reality. Moreover, you can change/remove the display content anytime using Hexnode.

Notes:

The supported formats for media files are JPG & PNG for images, MP4 & Matroska (MKV) for videos and, MP3 and OGG for audio.
This feature is supported on Android 5.0+ and Android TV OS 5.0+ devices.
Digital signage for Amazon Fire OS supports only streaming the image files.

To enable Digital signage display in Android kiosk mode

Login to your Hexnode portal.
Navigate to Policies.
Select an existing policy or create a new one by clicking New Policy.
Provide a policy name and a suitable description.
From Kiosk Lockdown > Android Kiosk Lockdown, select Digital Signage Display and click Configure.

Enable digital signage – Check this option to enable digital signage display. You can upload the files to be set in digital kiosk, only if this option is enabled.

Add Folders/Files

Folder/File Path – Provide the file path on the target device. e.g/:/storage/emulated/0/hexnodemdm

General

Settings	Description
Include sub-folders	Check this option to include the files within the sub-folders.
Limit to	Choose the number of sub-folders to be included from the specified sub folder. This can take values from 1-9.
Order by	Choose the ordering by which media should be arranged. Name: Select this option to sort files alphabetically. Type: Select this option to arrange by media type. It will be sorted by images first followed by videos in the folder. Random: Selecting this option arranges the media files randomly.
Play custom background music	Check this option to play a custom background music.
Fit to full-screen	Check this option to fit the image/video to the display screen. Normally, images/videos get cropped if their aspect ratios are different from the display screen.

Video

Settings	Description
Play videos in the folder	Check this option to play the videos in the folder.
Mute video volume	Check this option to mute the video.
Trim clips	Check this option to trim video clips. The duration to be trimmed is to be specified in MM:SS format.

Image

Settings	Description
Display images in the folder	Check this option to display images in the folder.
Display duration	Provide the time duration to display the image, in seconds.

Transition

Settings	Description
Animation scale	Choose the animation scale to be applied for transition. The value could be Off, 0.5x, 1x, 2x and 3x.
Animation effect	Choose the type of animation effect to be applied for transition. It could be Fade/Slide/Zoom.
Background color	Choose the background color of the transition.

Add Videos

Upload the videos to be set in digital signage kiosk.
Select the uploaded file and click on Configure.

Settings	Description
Loops	Provide the number of sequences to play the video repeatedly.
Fit to full-screen	Check this option to fit the video to the display screen. Normally, videos get cropped if their aspect ratios are different from the display screen.
Trim clips	Check this option to trim video clips. The duration to be trimmed is to be specified in MM:SS format.
Mute videos	Check this option to mute the video.
Play custom background music	Check this option to play a custom background music.

Add Images

Upload the images to be set in digital signage kiosk.
Select the uploaded file and click on Configure.

Settings	Description
Loops	Provide the number of sequences to display the images repeatedly.
Fit to full-screen	Check this option to fit the image to the display screen. Normally, images get cropped if their aspect ratios are different from the display screen.
Display duration	Provide the time duration to display the image, in seconds.
Play custom background music	Check this option to play a custom background music.
Animation scale	Choose the animation scale to be applied for transition. The value could be Off, 0.5x, 1x, 2x and 3x.
Animation effect	Choose the type of animation effect to be applied for transition. It could be Fade/Slide/Zoom.
Background color	Choose the background color of the transition.

Audio

Configure the audio settings for the files uploaded.

Settings	Description
Mute videos	Check this option to mute the video.
Play custom background music	Check this option to play custom background music.
Music	Upload the audio file to be played in the loop.

Display

Configure the display settings for the digital signage.

Settings	Description
Fit to full-screen	Check this option to fit the image/video to the display screen. Normally, images/videos get cropped if their aspect ratios are different from the display screen.
Shuffle	Check this option to shuffle media files.
Screen orientation	Choose to set the screen orientation to either Portrait/Landscape mode. You can also choose to set the default mode.
Brightness	Choose the brightness mode. Keep current brightness – Check this option to use the current brightness on the phone, while digital signage is enabled. Set brightness – Set brightness – Check this option to customize the screen brightness level on an active digital signage display. You can move the slider towards right/left to increase or decrease the brightness level on the device, respectively. Note: The slider position set here might not accurately represent the device end slider position. The brightness scale and the display brightness curve, which varies with the device model, cause this inaccuracy.
Sleep after	Provide either the time (mm:ss)/number of loops, after which the device should go to sleep mode.

Associate the policy to target devices

You can associate the policy to devices by two methods.

If the policy has not yet been saved.

Navigate to Policy Targets.
Click on +Add Devices.
Select the devices and click OK.
Click on Save to apply the policies to devices.

Apart from devices, you can also associate the policies to device groups, user and user groups from Policy Targets.

If the policy has been saved, you can associate it with another method.

From Policies, check the policies to be associated.
Click on Manage → Associate Targets and select the devices.
Click on Associate to apply the policy to the devices.

Note:

Once the files are uploaded, a table listing the uploaded files appears.
On devices running Android 11+, ‘Manage All Files’ permission is required for the Hexnode UEM app to access device storage.

This permission should be granted for the Hexnode UEM during enrollment.

Mange All Files permission on Hexnode UEM app

When the Hexnode UEM/Hexnode for Work app is updated, ‘Manage All Files’ permission may not be granted. Hence, to avail file management and distribution functionalities, user should grant this permission when the Hexnode UEM app prompts while opening the updated app.

Manage All Files Permission during update

If the screensaver or digital signage is configured with the kiosk policy and the ‘All Files Access’ is denied to the Hexnode UEM app, kiosk activation fails. To activate kiosk mode, you need to grant permission when the prompt ‘Kiosk Activation Failed’ appears on the device.

Permission to activate kiosk mode

Alternatively, you can also give ‘All Files Access’ for the Hexnode UEM app from the device settings page.

Table listing the details of the uploaded files.

It displays the file name, type of file, number of loops and the Status of the file.
The status can be toggled off, if the specified file is not to be used.

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