I had to use "Kernel Adiutor" (not a typo) since I'm unable to directly edit the build.prop file; The kernel in this SW revision is compiled with secure flag 1 and i presume that's the primary issue with directly editing the files from "/system". Also, the rootkit for this phone uses SuperSU so I had to install BusyBox cause Kernel Adiutor uses that package to run root functions; Simply installed the apk then clicked "Install" in the app after the analysis completed.
I did this with "Unknown sources" in "Security" and USB debugging enabled. Also, the phone needs to be connected to your PC.
- In Kernel Adiutor use the "Build prop Editor", click the + icon, make a backup then add the "persist.debug.wfd.appmonitoring" for Key and "1" for Value.
- Type the following in your OS shell:
- adb shell
- chmod 644 /system/build.prop
- Done, reboot phone.