Smartphone screen (Android operating system) flickers - what to do?

Br
- in Mate series
1

I have a Huawei mate 20 lite smartphone. The smartphone has been flickering for some time. I have already made a backup and reset to factory settings. Unfortunately does not work. What to do?

Da

What happens if you set the brightness to max?

Otherwise I suspect a hardware problem that you probably can't fix on your own.