Unlock Hidden Features on Your Xiaomi 11T Pro: A Guide to Secret Codes
- Why use it: If you bought a used phone and want to verify the camera sensors work, if you suspect your gyroscope is drifting, or if your screen has dead zones.
- Tests included: Touchscreen test, LED light test, Speaker test, Microphone test, Accelerometer, and SIM card detection.
Accesses the diagnostic menu to test the screen, sensors, and speakers. *#*#4636#*#* Testing Menu
: Allows you to check the status of Google Play Services and Firebase Cloud Messaging for troubleshooting notification issues. About Phone/Version Details ( *#*#0000#*#*
Do NOT press the call/green button. The menu should appear automatically within 1 second.
If nothing happens, delete the last character and re-type it. Rarely, MIUI requires a “trigger” character.
If still nothing, restart your phone and try again – some services (like telephony stack) may be hung.