Use APKPure App
Get Pixel Fixer old version APK for Android
장치 화면에서 스턱이나 죽은 픽셀을 복구합니다.
If any pixel in your device screen seems to be black or not working than this app can help you.
This app detects any stuck pixel or Dead pixel and then Fixes those pixels.
Only those pixels will be fixed which doesn't have any Hardware Damage.