Galaxy Diagnostics Screen Tool Fixer May 2026

This cycles through solid colors (Red, Green, Blue) to help you spot dead pixels or backlight bleeding. 2. The Hardware Menu: Secret Dial Codes

For a deeper, "bare-metal" look at your screen's health without the overhead of an app, you can use secret diagnostic codes. How to use Samsung Members Diagnostics galaxy diagnostics screen tool fixer

You will see a grid of squares. Drag your finger across all of them; if they turn blue, your digitizer is healthy. Any white spots indicate a dead zone. This cycles through solid colors (Red, Green, Blue)