---
tags: Android BSP Development, MyJob
---
# How to Set DeviceOwner For App with adb (Using testDPC Example)

## Where to download
### Locate MH5108_FixDeviceOwnerIssue directory

* The adb command locate in adb folder.
Copy **adb** to **/usr/local/bin**
* The TestDPC apk loacte in TestDPC folder.

## How to use
### 1. Install TestDPC Apk
`$ adb install TestDPC_6102.apk`

### 2. Set DeviceOwner permission for testDPC
It will set the given component as active admin, and its package as device owner.
`$ adb shell dpm set-device-owner com.afwsamples.testdpc/.DeviceAdminReceiver`

> The **dpm** utility is to create a new file called **device_owner.xml** under **/data/system/device_owner.xml** that references the *Device/Profile owner* apps
>

### 3. How to check if an Android app already is a Device Owner
There are two method that can check if the app is DeviceOwner
#### a. Using adb command to check device_owner.xml (*Need root permission*)

kevinlee@kevinlee-Protech-ubuntu:~$ adb shell cat /data/system/device_owner_2.xml
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<root>
<device-owner package="com.afwsamples.testdpc" name="" component="com.afwsamples.testdpc/com.afwsamples.testdpc.DeviceAdminReceiver" userRestrictionsMigrated="true" />
<device-owner-context userId="0" />
</root>

#### b. Via Android platform
Settings -> Security -> Deviceadministrators


A DeviceOwner app will not be uninstall and the button "*Deactivate this device administrator*" will be highlight.

>Note.
>If showing the below picture, it is not correct to set DeviceOwner for app.