How To Use Secret Codes On Tcl 40 R 5g Site

Your TCL 40 R 5G is more than just a budget-friendly 5G smartphone; it’s a sophisticated piece of engineering running on Android 13 (or later). Beneath its typical user interface lies a hidden diagnostic layer accessible through (Unstructured Supplementary Service Data), often referred to as "secret codes" or "engineering codes."

Displays unique identification numbers (IMEI/Serial) for your device. *#*#4636#*#* Testing Menu How to Use Secret Codes on TCL 40 R 5G

| Code | Function | |------|-----------| | *#*#0673#*#* | Audio loopback test (tests microphone and speaker path). | | *#*#0289#*#* | Speaker and vibration test (plays melody and buzzes vibrator). | | *#*#0842#*#* | Device vibration test alone. | Your TCL 40 R 5G is more than