Dark glowing screen after update
 

Hello!

After a long time i returned to my old beloved phone, disabled noka repositories and added the new mirrors. After a massive update with above 270 Mb now screen is only glowing dark and no ui appears. Screen goes black after a while but with power button i can "wake it up". I have cssu enabled since it came public and had no issues with it untill now.

Any suggestions what i can do to bring it back to life?