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MrRare2's DPC app based on OwnDroid.

This uses Android's Device Policy Manager.

This is mostly only used for MrRare2 but you can use it as well if you want.

Features

• Disable camera
• Disable screen capture
• Disable status bar
• Master volume mute
• Common Criteria mode
• Hardware monitor (temperatures, fan speeds)
• Reboot device
• Change time / time zone
• Lots of policies (permission, MTE, Nearby streaming, FRP)
• Lock task mode
• Security logging
• Network (VPN always on, private DNS, WiFi)
• Network logging
• User restrictions (change wifi state, change location state, block factory resetting via settings, etc..)
• App block install / uninstall / hide / suspend
• Manage users
• Reset password
• Set timeout
• Configure keyboard features
• App lock/hide
• Themes (Material Design 3 + Dynamic Color)

Working modes

• Root
• Shizuku
• Dhizuku
• ADB -> dpm set-device-owner dev.mr2.dpc/.Receiver

Provisioning errors

Existing accounts

java.lang.IllegalStateException: Not allowed to set the device owner because there are already some accounts on the device

Solution

1. Freeze those apps with accounts using Hail.
2. Or uninstall them

Existing users

java.lang.IllegalStateException: Not allowed to set the device owner because there are already several users on the device

Solution

Note

Some systems have a feature like "App cloning" or "Kids Space" which are usually just users.

1. Remove those users (secondary users, guest accounts, etc...)

API

You can check the receiver file for the intent extras to sends as well as the arguments

Intent based

Sending via shell

am broadcast -n dev.mr2.dpc/.ApiReceiver -a dev.mr2.dpc.api.ACTION_NAME --es key ...

Sending via code

Java

Intent intent = new Intent("dev.mr2.dpc.api.ACTION_NAME");
intent.setClassName("dev.mr2.dpc", "dev.mr2.dpc.ApiReceiver");
intent.putExtra("key", "...");
sendBroadcast(intent);

Kotlin

val intent = Intent("dev.mr2.dpc.api.ACTION_NAME").apply {
    setClassName("dev.mr2.dpc", "dev.mr2.dpc.ApiReceiver")
    putExtra("key", "...")
}
sendBroadcast(intent)

TCP (advanced)

Send a raw TCP response to localhost at the port defined in the app with a base64 encoded AES-GCM 256-bit JSON request, with the key being the SHA-512 of the API key using only the first 32 bytes, under the spec of IV + ciphertext + tag. Decoding is the opposite way: base64 decode -> AES decrypt with key -> parse JSON. It also uses the same spec.

Warning

Only use the TCP API at your own risk! The developers are not responsible for any type of damage this usage may cause, as with the usage of the app itself.

Build

Termux

• Install deps
  • pkg update && pkg upgrade -y && pkg install -y gradle kotlin openjdk-17 aapt2 apksigner wget
  • termux-setup-storage
• Install Android SDK tools (here)
• gradle build or gradle assembleRelease
• cp app/build/outputs/apk/release/app-release.apk /sdcard/MDPC.apk

Build errors

AAPT2

variant #1

AAPT2 aapt2-* Daemon #0: Daemon startup failed

Solution

Append this into ~/.gradle/gradle.properties:

android.aapt2FromMavenOverride=/data/data/com.termux/files/usr/bin/aapt2

And try again

variant #2

ERROR: AAPT: error: failed to load include path /data/data/com.termux/files/home/apps/sdk/platforms/android-*/android.jar. (target sdk >= 35)

Solution

As of now there has no official solution for this issue (as seen here) but you can try replacing the aapt2 binary on $PREFIX/bin with some pre built binaries like this one but I take no responsibility on these unofficial aapt2 builds, use at your own risk!.

Linux

• ./gradlew build or ./gradlew assembleRelease

Windows

• ./gradle.bat build or ./gradle.bat assembleRelease

License

Copyright (C) 2024 BinTianqi

Copyright (C) 2025 MrRare2

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.