Need help finding the right replacement part.

[aarono123]

My girlfriends Samsung Galaxy S8+ is suffering with the black screen of death. Her pattern is she would charge her phone until 100%, unplug it turn it off then go to bed, repeat. She turned her phone on a couple of days ago and the screen doesn’t turn on but the phone does, she just can’t see anything because the screen is black. I got her an iPhone so all good but l still want to repair it so I can get her some important info back. What replacement part do you recommend I get? Digitizer? LCD? Battery?

 

[popatim]

Shine a light into it, if you can see the image then the backlight is out. I don't know if you can purchase it separately from the LCD.