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Get LCD & AMOLED-Test Pro old version APK for Android
Find dead pixels and sub-pixels on your display - LCD- and AMOLED-ready
Find dead pixels and sub-pixels on your display.
Try to fix the persistence of dead pixels. Every 15 seconds, the color changed automatically to excite the crystals to move again. CAUTION: This process may take several hours and a fix is not guaranteed. But it's worth a try.