I am definately not making a video.
I may make a short writeup, but atm i dont have time.

Also, this is really not a beginners task.
There is nothing that will make this an easy task - at least not without someone willing to spend a considerable amount of time programming.

I had sometime ago same results with downgrading as mentioned here. However, Iam not sure on the consequences of the CMT not being downgraded by these steps.