How to put android 4 on tablet with android 5?

Question

Android

Tablet sony xperia sgp771, by default comes with a five. But it is very necessary, no matter how strange it was, four.
You need to make a hard kiosk mode, but you can’t do everything on the fifth droid. Any ideas?

Answer 1

Compile device drivers from sources into the kernel for the quad, edit the configuration files, sign the kernel with Sony's digital signature... Although, you don't have all that :)

Answer 2

If it's not a secret - what can't be done on petrka, what can be done on 4k? I don't know how to do it, but maybe it's easier to buy a new tablet?

Answer 3

how do you dream of hitting your "bar"
from personal experience, I somehow caught fire to install a video wallpaper on a laptop (an old asus with one vidyuha) and this way and that, in general, my vidyuha burned out But the wallpaper launched