Use the Samsung Members app to locate the nearest or to initiate a chat with a support representative.
The fastest way to access the diagnostic screen is through the phone's keypad. This "General Test Mode" is used by technicians to verify hardware functionality.
Tapping these turns the entire screen into a solid block of that specific color. Use this to check for dead pixels, backlight bleeding, or permanent screen burn-in. samsung galaxy diagnostics screen tool fixer
If this tool were developed, here is how it would likely function:
Stuck pixels are often caused by a stalled sub-pixel transistor failing to cycle its voltage. Enter the *#0*# menu. Use the Samsung Members app to locate the
Samsung devices feature built-in diagnostic tools, including the Samsung Members app for component testing and a hidden *#0*# menu to identify screen issues. For software-related display issues, users can initiate a "Repair apps" function within the device's recovery mode. Find detailed instructions on running these diagnostics at Samsung Support . Run diagnostics on your Galaxy devices with Samsung Members
Your Samsung Galaxy smartphone is a highly sophisticated piece of engineering. However, when the touchscreen misbehaves, the battery drains unexpectedly, or the sensors stop tracking, you do not need to rush to a repair shop immediately. Built deep into Samsung's One UI software is a powerful, hidden utility designed to test every hardware component. Tapping these turns the entire screen into a
Use these screens to spot stuck pixels or dead pixels. A dead pixel will show up as a black dot on a colored background, while a stuck pixel will remain a single color regardless of the background.
If your device fails the Touch Matrix test, displays permanent dark shapes during the RGB color checks (screen burn-in), or shows visible vertical green/pink lines during the display test, software cannot repair the issue.
: This code may be blocked by certain carriers or on some newer models.