Help : Xiaomi Redmi Note2 with Settings denials

[hene]

Thanks for your feedback Master Infinity,

As i stated before although i feel you might be right on your assumption about possible device fault (but not necessarily at the hardware level -- most probably at software level and i average: at MIAUI level:
In the urge of defending structural environmental responses the MiaUI Team most probably cooked hard contradictory measures against user-commands that change their own fixed "defaults" -- MIAUI launcher rather dies off than accepts compliance with User (even if Supersu) 'reversing' orders.

I do not know much but up to this line,i'm sure i'm correct! -- which is a sad minus Note, IMMO. Will try another (LAST) flashing operation with the large 'developper' Rom.
IF RED lighted again, then may have to proceed to CianogenMod 12.1...

Regards,
H