How to remove Wi-Fi calls on Xiaomi: 5 working ways

Have you noticed that your Xiaomi automatically switches voice calls to Wi-Fi even when the mobile network is stable? Or does the operator impose this feature and you want to return to classic calls over the cellular network? The problem with Wi-Fi calls on Redmi, POCO or Mi devices is common - and it is solved in several ways.

In this article, we will not only break down standard shutdown through settings, but also covert methods for MIUI 12-14 firmware, and explain why the function sometimes turns on itself. It is important to understand that on some Xiaomi models (for example, Redmi Note 11 Pro+ 5G), VoWiFi is activated at the firmware level and requires manual rollback through ADB if the operator blocks the change of settings.

Before proceeding with the instructions, check:

• 📱 Phone model – on newer chipsets (e.g. Snapdragon 8 Gen 2), VoWiFi may work differently than on older ones (Helio) G96).
• 📶 Version MIUI — In Settings → About the phone (relevant to MIUI 14.0.5+).
• 🔄 Operator Policy – some (such as MTS or Tele2) force VoWiFi activation via the Internet SIM-map.

1. Standard VoWiFi Disconnection via MIUI Settings

The easiest way is to use the built-in system options. It works on most Xiaomi devices (except custom firmware models).

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-card (if there are several).
3. Slip on the item Calls over Wi-Fi (or VoWiFi).
4. Move the slider to the off position.

If the Wi-Fi call is not on the menu, it means:

• 🔍 Your carrier does not support VoWiFi (check on the provider’s website).
• 🛠️ You have firmware installed without this feature (relevant to older Redmi models) 4X or Mi A1).
• 🔒 The operator has blocked the change of settings (solved by ##4636## or ADB).

⚠️ Attention: On some firmware MIUI 13+ After disconnecting VoWiFi, the ability to call through the phone may disappear LTE (To return it, restart your phone or manually activate Settings. → SIM-map → Challenges 4G (VoLTE).

2. Hidden menu of engineering settings (code ##4636##)

If the standard method didn’t work, try the engineering menu, which is suitable for most Xiaomis, but requires caution – don’t change the other options!

Instructions:

1. Open the Phone app and type the combination: ##4636## (some models may require ##4636###).
2. In the menu that opens, select Phone Information (or Phone Information).
3. Scroll down to the VoWiFi or Wi-Fi Calling block.
4. Click on the drop-down list and select Disable (or Disabled).

If you still have VoWiFi active after this action:

• 🔄 Restart your phone – sometimes changes only apply after a reboot.
• 📵 Check if the function is not included at the level SIM-cards (some operators, such as Beeline, activate it through the USSD-team).

3. Disconnection via ADB (for advanced users)

If you block the change of your VoWiFi settings, you will have to use Android Debug Bridge (ADB), which works on 90% of Xiaomi devices, but requires a computer and enabled debugging over USB.

Step-by-step:

1. Activate Developer Mode: Go to Settings → About Phone and tap the MIUI version 7 times.
2. Return to Settings → Additional → For developers and enable USB debugging.
3. Connect your phone to your PC, install ADB Tools, and execute the commands:

adb shell


settings put global wifi_calling_enabled 0




settings put global wifi_calling_available 0

After you've done the commands, restart the device. If VoWiFi is still active, try the additional command:

adb shell am broadcast -a android.intent.action.ANY_DATA_STATE --es phone 0

⚠️ Attention: Misuse of the right ADB If you're not sure what you're doing, you should see a specialist, and you should also note that after you reset your settings or update. MIUI You have to repeat the procedure.

4.Operator problems: how to block VoWiFi at the SIM level

Some Russian operators (for example, MegaFon or Yota) activate VoWiFi at the level of the Internet. SIM-You can't turn it off via the phone:

1. Call support and ask to disable the service, and tell them that you have problems with the quality of calls over Wi-Fi (this is an official reason for deactivation).
2. Replace SIM-New card (sometimes helps if VoWiFi is linked to a specific card).

If the operator refuses to disable the function, try:

• 📲 Insert SIM To another phone (not Xiaomi) and disable VoWiFi there.
• 🔄 Use it. USSD-For example, for MTS, this may be *111*777# (But teams change a lot).

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If the operator imposes VoWiFi, try using a virtual SIM (eSIM) – sometimes the function is disabled by default.

5. Alternative solutions: rolling back firmware or resetting settings

If none of these methods work, radical measures remain:

1. Reverse to the old version of MIUI (if VoWiFi appeared after the update). To do this, download the necessary firmware from the official Xiaomi website and run through Fastboot or Recovery.
2. Factory reset helps if the problem is caused by a setting conflict. Important: pre-backup the data!

Before you resort to these methods, check:

• 🔍 Is there any forums (for example, 4PDA or XDA-Developers) information about the bug with VoWiFi for your model.
• 📦 Does the antivirus (e.g., Avast or Xiaomi’s built-in Security) block changes to system files.

⚠️ Note: Firmware rollback may result in a loss of warranty if the device was purchased less than a year ago. 5G) They may not work properly.

6. Frequent errors and their solutions

When you turn off VoWiFi, you're faced with typical problems, and here are the most common ways to fix them:

If your problem is not described in the table, check:

• 🔧 Logs of the system through the Logcat application (look for errors with the ImsService or WiFiCalling tag).
• 🌐 Regional settings – VoWiFi is only available for certain countries (e.g. India or the EU) on some firmware).

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If VoWiFi is disrupting your work but you can’t turn it off, consider using third-party calling apps (like Google Voice or Zoiper).

FAQ: Frequent questions about VoWiFi on Xiaomi