*#*#34971539#*#*
(If a code above doesn’t run, your MIUI/firmware probably blocks it.)
Open the default or Dialer app on your Xiaomi 11T Pro.
While diagnostic codes are generally safe, use caution when modifying settings:
Secret codes are a series of numbers and symbols that, when dialed or entered into your phone, access specific functions, settings, or information. These codes are usually not documented in the user manual or official Xiaomi website, but they can be incredibly useful for troubleshooting, customization, and optimization.
*#*#4636#*#*
Accesses the diagnostic menu to test the screen, sensors, and speakers. *#*#4636#*#*
Displays the International Mobile Equipment Identity (IMEI) numbers and serial number.
To activate these features, you must enter the codes exactly as written into the . Open the Phone app. Tap the Keypad icon.