If you own a Samsung Galaxy device, you’ve probably heard whispers about a secret menu—a hidden laboratory inside your phone where you can test sensors, calibrate the touchscreen, and check the health of your battery.
is the official way to run a comprehensive diagnostic on over 24 phone functions. How to Access: Samsung Members app (pre-installed or available on the Galaxy Store ) and navigate to the tab at the bottom. Run Diagnostics: Phone diagnostics and select Touch screen Touch Test: samsung galaxy diagnostics screen tool fixer hot
To diagnose or troubleshoot a Samsung Galaxy screen issue, you can use the Samsung Members app for a guided self-test or a secret dialer code The Samsung Galaxy Diagnostics Screen: How to Fix
Touch Precision: The "Touch" test presents a grid of squares that turn green as you trace them. This identifies "dead zones" where the digitiser might be failing. Run Diagnostics: Phone diagnostics and select Touch screen
Recommendation: Run diagnostics monthly to preempt thermal buildup, especially after system updates.