If this tool were developed, here is how it would likely function:
The most direct way to access the diagnostic screen is through the phone's dialer. This is often referred to as the Hardware Test Mode or LCD Test. Open your Phone app. Tap the Keypad tab. Enter *#0*# . samsung galaxy diagnostics screen tool fixer
This is a lightweight, secret diagnostic panel accessible only via a specific key combo during boot (Volume Up + Power + Bixby button, held for 7 seconds until the screen flashes amber). If this tool were developed, here is how