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Android Central Question
Dropped my galaxy S21 from a standing height onto tile with the stock tech21 case. No physical exterior damage. It just has a black screen. It turned on once and everything looked fine but the screen wasn't reacting to my finger inputs (couldn't swipe screen or use thumbprint to unlock.) So far I've tried holding power button for 20 seconds, holding power and down volume for 30 seconds, plugging it in and hitting the power button. All it does is vibrate. I need help because I use my phone as a controller for my insulin pump. Where do I go to get it fixed?