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

Do not press the call button. The action should trigger automatically within 1–2 seconds.

You may see codes online like *2767*3855# . These are "full factory reset" codes that erase your photos, contacts, and accounts without asking for confirmation.

| Code | Function | |------|-----------| | *#06# | Displays IMEI numbers (both SIM slots) and serial number. Essential for warranty or network unlocking. | | *#*#4636#*#* | (Phone info, Battery stats, Usage statistics, Wi-Fi info). Use this to check signal strength in dBm or enable/disable VoLTE. | | *#*#786#*#* | Shows device age, bootloader status, and reset counters (use carefully – do not press “Reset” unless intending full wipe). | | *#12580*369# | Software and hardware version info (system, bootloader, audio, RF). | | *#*#8255#*#* | Google Talk / GTalk service monitor (less useful now but shows sync status). | How to Use Secret Codes on TCL 40 R 5G

seven times. This unlocks "Developer options" under the System settings for debugging and UI customization. Important Safety Note : Be cautious when changing settings in the

This is the "master code" for MediaTek processors. You can adjust antennas, audio levels, and hardware settings. What you should use it for: Simply looking at the Device Info (CPU type, clock speed) or running the Location test to see how many GPS satellites your phone sees. What to avoid: Do not change values in "Audio" or "Hardware Testing" unless you have researched them first. Do not press the call button

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."

Bookmark this guide. Your TCL 40 R 5G has a hidden powerhouse of diagnostics—now you know exactly how to use it. These are "full factory reset" codes that erase

A: Some TCL firmware hides Phone Info. Use “Force LTE Only” (4G Switcher) app from Play Store instead.

Before diving into the list, it is important to understand what these codes actually are. USSD stands for Unstructured Supplementary Service Data. In simple terms, these are protocol codes that communicate directly with your mobile network operator or your phone’s internal firmware.

Shows the Specific Absorption Rate (RF energy absorption) for the device. *#*#426#*#* FCM Diagnostics