I found 2 issues:
How to add cLock on lockscreen? I don't have it there. Maybe I switched off something, but I looked almost everywhere and found nothing for turning it on.
How to disable CRT switch off animation?
I think it's hynix, because it's maybe-dead. I have flashned b937 by Vodafone and then 184.108.40.206 recovery. If I try to format /sdcard 0, after that phone has black screen and freeze. Also it keeps freezing in system. Is there any other way, how to try to rescue it?