: Displays solid colors to check for dead pixels or backlight bleeding.
Note: This code may be disabled by certain mobile carriers (like Verizon or AT&T). If nothing happens, use Method 2. Method 2: The Samsung Members App
The Samsung Diagnostics Screen (SDS) is a hidden menu accessible via the stock dialer. It tests: samsung galaxy diagnostics screen tool fixer hot
Open the app (pre-installed, or downloadable via the Galaxy Store). Tap the Support tab at the bottom right. Select Phone diagnostics . You will see a complete grid of individual component tests. Step-by-Step: Using the Tool to Fix an Overheating Phone
The Screen Tool Fixer is an invaluable resource for troubleshooting and fixing common screen issues on Samsung Galaxy devices. Here are some examples of problems that the Screen Tool Fixer can help resolve: : Displays solid colors to check for dead
Prevent rogue background apps from hijacking your CPU. Navigate to Background Usage Limits and move unused apps to the Deep Sleep list.
Did the *#0*# code the menu on your carrier's network? Method 2: The Samsung Members App The Samsung
Draw across the grid to find unresponsive "dead zones" on your digitizer.
Samsung includes a hidden hardware diagnostic menu in its One UI software. You do not need to download third-party apps to access it. You can trigger it using two primary methods. Method 1: The Secret Dialer Code Open the native app on your Samsung Galaxy. Open the keypad and type *#0*# .
The screen will instantly transition to a white grid menu filled with hardware test buttons.