Use APKPure App
Get LCD & AMOLED-Test old version APK for Android
Cari dead pixel dan sub-piksel pada layar Anda - LCD dan AMOLED-siap
Find dead pixels and sub-pixels on your display.
To switch between colors swipe the screen or touch the screen longer to adjust the brightness.
LCD-Test Pro can try to fix the persistence of dead pixels. You'll find it in the market, too.