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When i try to turn on my galaxy tab a 8.0 (2019) i see a black screen but its emitting some light in the dark, touch screen work i hear it unlocking and sounds work, the screen is extremly cracked you can see holes and u can see the insides of the tablet through the hole (the hole is located in a cornor) i do not know if the LCD is broken or its just the screen Despite there being a hole there was still display and its still working fine until i accidentally dropped the tablet again and everytime i tried to turn it on all i saw was light flickering through the hole usually it woudlnt flicker
@nguyenn “the screen is extremly cracked you can see holes and u can see the insides of the tablet through the hole” this alone is enough to declare your LCD as destroyed and I am not surprised you do not see anything displayed on it. Replace the screen assembly and re-evaluate. Use something like this video to help you with it. Use this guide Adding images to an existing question to add images to your existing Question.