Samsung devices always use the Samsung SPM to unlock Remote View, Remote Control, scheduled and remote reboots, and Kiosk Mode device locking. Installing it requires configuring the device as a Device Owner, the same mechanism used by SPM DPC, in addition to activating the Knox license. This article covers the full installation flow.
How It Works
Installing the Samsung SPM involves two separate activations, both are required:
- Device Owner – configured through ADB, the same way as SPM DPC. This is what grants the SPM its system-level privileges.
- Knox activation – done through the SPM app itself, after installation, to enable Samsung's Knox platform.
Installing the Samsung SPM
- Perform a Factory Reset on the device and enable Developer mode. Important: When asked, do not sign in with a Google account. The Device Owner needs to be configured before any account is added to the device.
- Download the Samsung SPM package from the SPM download page.
- Connect the device using ADB (ADB Connection Guide).
- Install the Samsung SPM by running:
adb install -r <path-to-samsung-spm.apk> - Activate the Device Owner by running:
adb shell dpm set-device-owner module.platform.signage/.AdminReceiver - Launch the SPM app on the device. Check "I have read and agree to all terms and conditions", then tap Confirm when prompted to activate the Knox license.
- Install the OnSign Player app (download it directly on the device or install it with ADB), open it, and grant all requested permissions.
- On your Dashboard, go to the device's Player settings and configure the Lock password. This password is required to exit Kiosk Mode, if it isn't set, Kiosk Mode will not be enabled.
- Allow the player to sync so it can download the latest content and settings.
- Restart the device, or fully close and reopen the OnSign Player app, to apply the password lock.
Troubleshooting
- Setting the Device Owner fails with a "not allowed" error: A Google account was already added to the device before running the command. Resolution: perform a Factory Reset again and set the Device Owner before adding any account.
- Kiosk Mode does not lock the device: No Lock password was configured in the Player settings. Resolution: set a Lock password on the Dashboard and restart the device.
- The Knox activation prompt never appears: Not all Samsung devices support Knox. Make sure your device is listed here: Devices Secured by Knox.
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