How to Enable VoLTE and VoWiFi on Xiaomi 12, 12X, and 12 Pro

In this comprehensive tutorial, we will show you the steps to enable VoLTE and VoWiFi on Xiaomi 12, 12X, and 12 Pro devices. In recent years, more users are getting inclined toward voice-over LTE or WiFi. The reason for the same is the plethora of benefits associated with it. For example, you could directly place a call via WiFi (WIFi Calling) even if there is no carrier network signal.

Likewise, you wouldn’t even have to carry out any additional recharges just for the sake of talk time. However, while most devices come with this technology, not everyone keeps it enabled by default. Unfortunately, the latest Xiaomi flagships also fall in this domain. But fret not. Using a simple workaround you could easily enable VoLTE and VoWiFi on Xiaomi 12, 12X, and 12 Pro devices. And this guide shall make you aware of just that. Follow along for the instructions.

Xiaomi 12X

How to Enable VoLTE and VoWiFi on Xiaomi 12, 12X, and 12 Pro

  1. To activate the VoLTE and VoWiFi on Xiaomi 12, 12X, and 12 Pro, you need a global version and install the
  2. Make sure to flash the Magisk on your device.
  3. Once that is done, go to Settings > About Phone > Tap on Build Number 7 times > Go back to Settings > System > Advanced > Developer Options > Enable USB Debugging.
  4. Connect your device to the PC via USB cable and proceed with the below steps to enable VoLTE and VoWiFi on Xiaomi 12, 12X, and 12 Pro.
  5. Then download and install the Android SDK Platform Tools on your PC.
  6. Head over to the platform-tools folder, type in CMD in the address bar, and hit Enter. This will launch the Command Prompt.
    cmd platform-tools
  7. Now type in the following command in the CMD window and hit Enter:
    adb shell
    setprop sys.usb.config diag,serial_cdev,rmnet,adb
  8. Once it is done, your phone should be recognized by PDC (if not install Qualcomm driver and check Device Manager)
  9. Start PDC (from QPST tool) on PC
  10. Now deactivate the first profiles (sub0 & sub1) that are active ( mine was ROW_Comercial )
  11. Now select the carrier sub0 & sub1 then click activate
  12. Remove ROW_Comercial ( you need to remove it because after restarting the phone, the software will re-select it )
  13. Now you need to restart your phone
  14. Enjoy your voWIFI


Please note that this will enable only the option in settings in case it is hidden. It will not make VoLTE/VoWiFi work if the phone does not support it.

Xiaomi can´t enable the option if the carrier doesn´t verify/grant Xiaomi permission to do so. Testing this is a very tedious process.

If VoLTE/VoWiFi is not working for you after toggling it on in settings, this means there´s no config file for your carrier yet.

In my case, VoLTE was already supported by default. I could enable VoWiFi with the third prop because Xiaomi already has the correct config in the modem. Lucky for me it works and it was only a matter of making the option visible.
It might be enabled by default in the future if the carrier agrees.

That’s it. These were the steps to enable VoLTE and VoWiFi on Xiaomi 12, 12X, and 12 Pro devices. If you have any queries concerning the aforementioned steps, let us know in the comments section. Rounding off, here are some iPhone Tips and TricksPC tips and tricks, and Android Tips and Tricks that deserve your attention as well.


  1. Io ho un 12 lite con SIM Tim e WiFi di casa Tim, bel telefono ho abilitato le chiamate wifi ma quando faccio una chiamata in assenza di rete mi dice che devo collegarmi ad una rete WiFi, anche se è già connesso. Seguendo questa guida posso risolvere?

    1. Capisco il tuo problema con il tuo 12 lite e le chiamate Wi-Fi. Sebbene questa guida possa offrire alcuni suggerimenti utili, potrebbe non essere specifica per il tuo dispositivo o operatore. Ti consiglio di contattare l’assistenza clienti TIM per ottenere aiuto specifico per il tuo problema. Potrebbero essere in grado di fornirti istruzioni dettagliate su come risolvere il problema delle chiamate Wi-Fi sul tuo dispositivo.

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