You can change the csc by replacing the relevant files. See the screen shot of Ultimate 5.1 on my phone. Having csc as unknown should not be something to worry about though.
UBLS4 is an older ROM than XXLSC. It is a ROM for Mexico (if I remember correctly). Stick to XXLSC and this ROM. UBLS4 is also filled with bloatware of Mexican provider.
If you enabled NOLED in accessibility menu you must disable it. Air view should work again. Also if you use NOLED don't enable it in accessibility menu even if prompted. It still works.
If you enabled NOLED in accessibility menu you must disable it. Air view should work again. Also if you use NOLED don't enable it in accessibility menu even if prompted. It still works.
Visit the play store and download Super Video. You can set it as a widget. Also has pop up play function. Works without problems on my Note even full hd video. The best alternative to the build in player.