The original repo can be found at https://github.com/Diazole/dumper
Dumper is a Frida script to dump L3 CDMs from any Android device.
** IMPORTANT **
The function parameters can differ between CDM versions. The default is  but you may have to change this for your specific version.
CDM_VERSIONcan be retrieved using a DRM Info app.
Use pip to install the dependencies:
pip3 install -r requirements.txt
- Enable USB debugging
- Start frida-server on the device
- Execute dump_keys.py
- Start streaming some DRM-protected content
Known Working Versions
- Android 9
- CDM 14.0.0
- Android 10
- CDM 15.0.0
- Android 11
- CDM 16.0.0
- Android 12
- CDM 16.1.0
Temporary disabling L1 to use L3 instead
A few phone brands let us use the L1 keybox even after unlocking the bootloader (like Xiaomi). In this case, installation of a Magisk module called liboemcrypto-disabler is necessary.
Thanks to the original author of the code.