How to remove the talk time limit on Xiaomi phone: all working methods

Xiaomi smartphone owners often experience a sudden call interruption in 30 to 60 minutes or a microphone lockdown after a long conversation, due to hidden MIUI restrictions that the manufacturer implements to “protect users” from overheating or excessive power consumption, but such limits often interfere in critical situations, such as during important conference calls or conversations with loved ones.

The problem is complicated by the fact that the call restriction settings are hidden deep in the system menus or are not at all in the standard interface. MIUI 14/15 Some of the methods of shutdown have stopped working, and alternative solutions require technical skills. In this article, we will discuss all the current ways, from simple changes to the menu to the use of the new technology. ADB-Commands and modifications of system files.

It is important to understand that restrictions may vary depending on:

  • 📱 Smartphone models (Redmi Note series, POCO, Xiaomi 13/14 different limits)
  • 🔄 Versions MIUI (In India/China/Global, different policies)
  • 🔋 Battery state (when the battery is worn) >80% of the limits are tightened)

If you're willing to risk system stability for unlimited calls, read on. But remember, some methods can cause you to reset your settings or lose your warranty.

1. Checking the current restrictions: how to know your limit

Before you turn off the restrictions, you need to understand what the limit is on your device. There are three types of locks in MIUI:

  1. Programming timer – Automatically complete a call after a fixed time (usually 30/60 minutes).
  2. Thermal limit - switching off the microphone or speaker when the processor overheats (relevant to the Snapdragon 8 Gen 1/2).
  3. Energy saving – forced termination of a call with a low battery charge (even if the settings are turned off).

To diagnose the problem:

  1. Make a test call to another number and record the time before the cliff.
  2. Check the temperature of the processor through the AIDA64 app (Sensors section), and if the temperature is above 50°C before the cliff, the thermal limit is to blame.
  3. Install the Phone Info app and check the system event log (Settings → About Phone → MIUI version, tap 5 times on the build number).
📊 What kind of limitation do you have?
The call stops in 30 minutes.
The microphone turns off when heated.
Calls are blocked at low charge
Other
I don't know.

A key feature of the software limitation is that the call is terminated in exactly a round number of minutes (30, 60, 90), regardless of charge or temperature, in which case one of the methods below will help.

Method 2: Disconnection through the hidden menu of engineering settings

The safest method is to use the engineering menu (#4636## or #36446337## for new models) which works on most Xiaomi/Redmi/POCO devices with MIUI 12-15, but may not be available on firmware in China.

Instructions:

  1. Open the Phone app and type in the combination: ##4636## If it didn't work, try: ##36446337###
  2. In the menu that opens, select Phone Information (or Phone Information).
  3. Scroll down to the Call Settings section or Call Settings.
  4. Find the parameters: 🔹 Call duration limit – set the value of Disabled or 0. 🔹 Voice call timeout – turn off or set the maximum value.

Save the settings and restart the phone.

Make a backup copy of the data

Check the battery charge (>50%)

Remember the current network settings

Do not interrupt the process of changing parameters-->

⚠️

Note: Some models (Xiaomi 13 Ultra, Redmi K60 Pro) have the engineering menu locked. Attempting to enter the code may cause network resets. If nothing happens after entering the combination, move to the next method.

Method 2: Change settings via ADB (for advanced)

If the engineering menu is not available, you can use Android Debug Bridge (ADB), a debugging tool through your computer, which requires USB debugging and works on all versions of MIUI, but can disrupt your phone if the commands are incorrect.

Step-by-step:

  1. Preparation: 💻 Install. ADB Tools on PC. 📱 On your phone, turn on Settings. → The phone. → Version. MIUI (tap 7 times on the build number to activate Developer Mode. Return to Settings → Additionally. → For developers and enable debugging by USB.

Connection:

  • Connect your phone to your PC through USB-cable (original!).
  • In the command line (Windows: Win + R → cmd), enter: Adb devices Must appear with a serial number.
  • Disable restrictions: Follow the commands in turn: adb shell settings put global call_duration_limit_enabled 0 adb shell settings put global voice_call_timeout_ms 0 For models with MIUI 14+ You may need to use the adb shell am broadcast. -a android.intent.action.CALL_PRIVILEGED --ez disable_call_limit true
  • Reboot your phone with the command: adb reboot

💡

If the app doesn’t record sound from the microphone, try turning off Battery Optimization for Call Recorder in your phone settings and adding it to AutoRun.

5. Method 4: Root access and editing system files

For the most advanced users, there is a method with root rights and direct editing of MIUI configuration files. This is the most radical way, which is guaranteed to remove all restrictions, but requires unlocking the bootloader and installing Magisk.

🔧 What's needed:

  • 🔓 Unlocked bootloader (instructions for Xiaomi: official website).
  • 📱 Installed by Magisk (version 26.0)+).
  • 💻 System File Editor (Mixplorer or Root Explorer).