For a guided experience with automated results, use the Samsung Members App . Open the app and tap Support (or the Discover tab). Step 2: Select Phone diagnostics . Step 3: Tap Touch screen or Display to run specific tests.
. Pressing too hard on an AMOLED display can damage additional pixels or crack the underlying OLED layer.
If the diagnostics screen tool clearly displays permanent black spots (bleeding OLED ink), unresolvable dead zones, or permanent severe burn-in, your hardware has reached the end of its life cycle.
If your device completely failed the test (dead zones that won't turn green), shows bright green/purple vertical lines across the display, or remains completely black during use, software fixes cannot help you. galaxy diagnostics screen tool fixer
Samsung doesn't leave you completely in the dark when it comes to diagnostics. Several powerful tools are already embedded in your device's software.
Spot isolated screen defects before they spread.
Use this to draw on the screen. The grid must be entirely covered to pass. SUB KEY: Tests physical buttons. SENSOR: Checks proximity and light sensors. Method 2: Samsung Members Diagnostics (The Official Fixer) For a guided experience with automated results, use
If your diagnostic tests (using *#0*# ) reveal a genuine hardware failure, no tool will fix it. Here are the actual solutions:
When DIY fixes aren't enough, here are the more heavy-duty solutions used by repair shops and advanced users.
Small, unresponsive dots on your screen are typically classified as dead or stuck pixels. A appears as a permanently black dot because it receives no power. A stuck pixel is frozen on a single color (red, green, or blue). Stuck pixels have a much higher chance of being revived through software or physical methods, while truly dead pixels often require hardware intervention. Step 3: Tap Touch screen or Display to run specific tests
While software can these problems, physical damage (like cracks or severe "burn-in") usually requires a hardware repair. 🛠️ Official Diagnostic Tools 1. The "Secret" Hardware Menu
Evaluates gyroscopes and proximity sensors that interact with your screen.
Displays real-time, raw data streaming from your accelerometer, gyroscope, magnetic sensor, and proximity sensor. How to Use the Tool as a "Fixer"