Use *#0*# to ensure the screen has no dead pixels and all sensors work.
⚠️ Never change a setting unless you have documented the original value. Most service menu changes take effect immediately without a "Save" button. To help you find the right tools, let me know: Your specific device model (e.g., S24, A54). What problem you are trying to solve.
Checking pixels, vibration, sensors, and speakers.
