Chosen Solution

Hi all, My screen is black, even if I try to replace the screen with another one - it remains black. I tried to check the battery, it isn’t dead, also I changed the backlight and still nothing did happen. Also - the display is working on another phone What else solution do you recommend to try? as I’m running out of solutions. Thanks!

We’ll need some history as in what happened before that caused this: drop, screen replacement, liquid damage, or spontaneously stopped working? Otherwise whey everyone else here said: you either have a damaged backlight circuit, or a damaged display circuit. Both need microsoldering skill and tools to fix.