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hello,i have take my screen out of my phone to clean up the earpiece and when i put it back again it gives a black screen and i have tried a new screen and it has the same problem sorry for my bad grammar
It is possible you have put wrong screws back in wrong holes and caused “long screw damage”. Screws must be put pack in same hole they were removed from. Or…if you didn’t disconnect power and turn off, you could have damaged back light circuit. Try to turn back on and look at screen closely under light to see if you can see vague image on display. Google long screw damage. This is only a guess based on common mistakes and damage on screen replacements