New Mi Note 3,, Stable(dev Versions Too)

Jan 4, 2018
I have this phone from April, all EU builds have the same bugs:
Auto brightness - night, evening, always goes down to 3~5%, the screen is too dark.

Volume in handsfree mode - the sound is too quiet, I can not hear the caller driving a car.

Themes app can't save current(edited) theme in internal memory. It hasn't permissions?
Is shows "...current theme settings have been backed up" but there isn't any copy.