MMI not saving brightness settings
 

Hello this is my first post on this forum so be nice, :)

I have an AUDI A1 1.4 TFSI 2012 with MMI Display and SD retro-fitted Navigation.

I found recently that the dashboard and MMI screen is TOO DIM.
I went to -->Menu-->MMI SETUP--> Display Brightness and I set my brightness to highest possible.
Problems are the following:

1. Is not noticeably brighter on max

2. The MMI doesn't save the brightness setting once I turn off the engine and leave my car for a while. (same goes for some of my settings for navigation) :(

All other settings seem to be saved just fine. Except MMI Display brightness.

Thank You guys in advance :)