If the "Touch" test reveals areas that don't turn green when you swipe over them, you have a dead zone.
No factory reset. No repair shop. Just a hidden tool that knew exactly what your screen needed.
Method 1: Accessing the Hardware Diagnostic Menu via Secret Codes samsung galaxy diagnostics screen tool fixer
To ensure the Samsung Galaxy Diagnostics Screen Tool Fixer works for you, avoid these errors:
In the world of smartphone repairs, few things are as mysterious and powerful as Samsung's hidden diagnostic tools. Whether you're dealing with a faulty screen, unresponsive sensors, battery issues, or even dreaded screen burn-in, the Samsung Galaxy diagnostics screen tool fixer is your gateway to identifying and potentially resolving these problems. This comprehensive guide explores every aspect of Samsung's diagnostic ecosystem—from the secret codes that unlock hidden menus to the specialized tools that can recalibrate your display. If the "Touch" test reveals areas that don't
| Issue | Can the tool fix it? | Notes | |-------|----------------------|-------| | Dead pixels | ❌ No | Hardware defect – needs screen replacement. | | Screen burn-in | ❌ No | Permanent OLED wear – not repairable by software. | | Touchscreen dead zone | ⚠️ Rarely | If caused by software calibration error, toggling touch test might reset it (very rare). | | Ghost touches | ⚠️ Sometimes | Running touch test can help diagnose; if software-related, a reboot or firmware reinstall fixes, not the tool itself. | | Sensor not working (e.g., proximity) | ⚠️ Unlikely | The tool can recalibrate some sensors (e.g., gyroscope) by running the test. Works ~20% of the time. | | Screen color tint | ❌ No | Usually hardware or display setting issue. | | “Black screen” but phone on | ✅ Possibly | If screen is working but not displaying due to a software freeze, entering diagnostic mode via button combo (not dialer) can sometimes wake it. Rare. |
For those comfortable diving deeper, Samsung devices accept hundreds of service codes. Here are additional useful ones: Just a hidden tool that knew exactly what your screen needed
Furthermore, if you are buying a used Samsung Galaxy, always run the *#0*# code before handing over any cash. It is the fastest way to ensure you aren't buying a device with hidden screen burn-in or a faulty vibration motor.
You select [3] Force panel power cycle .