Samsung Galaxy Diagnostics Screen Tool Fixer -

Checks for dead pixels or screen discoloration.

Nothing changed.

This "exercise" ages the less-used pixels to match the burned-in pixels. It won't remove burn-in, but it makes it significantly less noticeable. samsung galaxy diagnostics screen tool fixer

For a deep dive into your hardware without downloading any apps, Samsung includes a hidden service menu. This is the gold standard for testing screen colors and touch sensitivity. How to Access: Open your phone’s dialer and type Key Screen Tests: RED, GREEN, BLUE: Checks for dead pixels or screen discoloration