How to remove set-device-owner in Android DPM?

Question

I have made an app device owner using ADB, by following this link : How to make my app a device owner?

but now, I\'m not able to revert this.

In the device a

Answer 1

you can use the following ADB shell command to remove device owner

adb shell dpm remove-active-admin ComponentInfo{}

Disables an active admin, the admin must have declared android:testOnly in the application in its manifest. This will also remove device and profile owners

Answer 2

By specifying the android:testOnly="true" attribute in the AndroidManifest.xml it will be possible to uninstall the app or remove admin with:

adb shell dpm remove-active-admin package.name/MyDeviceAdminReceiver

But on a production device, this attribute should not be included and the app will be a non-test admin. From that point, it will not be possible to remove it or uninstall the application without wipe/factory reset.

Thankfully, updates can be done when the app is signed with the same key and when the version code is equal or greater:

adb install -r path/to/kiosk.apk

If you would like to get rid of admin and application on a production device programatically you have to reinstall it with a few new changes. Firstly you can wipe data programmatically if you have permission <wipe-data \> in device_admin_receiver.xml with:

devicePolicyManager.wipeData(DevicePolicyManager.WIPE_RESET_PROTECTION_DATA)

If you don’t have this permission new version should not start LockTask and remove its package from default Home app list with:

devicePolicyManager.clearPackagePersistentPreferredActivities(adminComponentName, packageName)

You could then manually go to Settings to perform a wipe/factory reset.

Information found on https://snow.dog/blog/kiosk-mode-android

Answer 3

fyi: adb shell dpm remove-active-admin only available from Android 7

Answer 4

You can unset it programmatically. You need to call this function in your device owner application

DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);

dpm.clearDeviceOwnerApp(context.getPackageName());

For more information see

Update: This method is deprecated in API level 26

Answer 5

The only way out is to flash or factory reset the device.