- The mod files ( lib64 and vender) Thanks to Adrien55 for providing these folders. Link: https://mega.nz/#!hu5mkAhZ!T-Pchx6Jl...m5sr8TQBBEjvrs
- Root explorer app. ( about $4 on google play). find it on Google Play or your market of choice!
- Your device must be rooted ( these boxes come rooted anyway!, so not to worry about this)
Now You need to follow the same procedure again for the second folder on your sd/usb and copy that also to you system folder using MOUT/RW button. After this the same black screen or reboot happens and your box might restart.
Now to see if it was done successfully, simply download DRM info from google play. Running DRM info I am able to see now that Widevine CDM is present on my box!
just to clarify, I did all this on Stock firmware. Not sure how it might act on a custom firmware.
Do it all at your own risk! It worked for me!