VoLTE on Xiaomi: why you need and how to remove the feature from the phone

Is VoLTE your Xiaomi friend or enemy?

You noticed that after the update MIUI In your Xiaomi status bar, the word VoLTE or HD Or maybe messenger calls stopped working and the battery went down faster? Maybe this is the fault of the communication standard. But before we rush to turn it off, let's figure out what it is and when VoLTE is really useful.

Voice over technology LTE (voice 4G) The idea was to revolutionize mobile communications: clearer sound, instantaneous connectivity, simultaneous conversation and mobile Internet, POCO Mis face problems, from accidental call interruptions to inability to use alternatives SIM-In this article, we will explain in detail how VoLTE works on Xiaomi when it should be turned off, and give step-by-step instructions for all versions. MIUI — from MIUI 12 to HyperOS.

Spoiler: 90% of the time, VoLTE is useful, but there are 5 critical situations where you need to turn it off immediately, see the problem section, and if you're ready to act, go straight to the disable instructions.

What is VoLTE and how does it work for Xiaomi?

VoLTE (Voice over LTE) — This is a voice transmission technology over the network. 4G, Unlike traditional calls that are used 2G/3G. On Xiaomi smartphones, it is activated automatically if:

• 📶 Your operator supports VoLTE (in Russia it is Beeline, MegaFon, MTS, Tele2, etc)
• 📱 The device is compatible (all Xiaomi models since 2018, including the Redmi Note 8 Pro, POCO X3, Mi 11 and newer)
• 🔄 The option is enabled in the settings (by default - yes)
• 📡 There's coverage. 4G/LTE in your region

When you make a call with VoLTE enabled, your voice is converted into digital data packets and transmitted over the carrier's Internet channel, which has several key benefits:

Xiaomi technology is implemented through built-in IMS-protocol (IP Multimedia Subsystem. This means that VoLTE doesn't need to install additional applications, it works at the firmware level, but there's a caveat: some carriers (like Yota or virtual carriers like Tinkoff Mobile) may not support VoLTE even on compatible phones. In this case, the indicator will flash, but calls will go through normal networks.

When VoLTE on Xiaomi should be turned off: 5 critical cases

Despite the obvious benefits, there are situations where VoLTE does more harm than good.-5 When it is necessary to turn it off right now:

1. Calls are cut off or never reach, if the caller hears you intermittently and the connection goes through the phone. 10-30 Seconds is a classic symptom of VoLTE conflict with the operator's network, especially in regions with unstable environments. 4G.
2. Fast battery drain.Volte increases the load on the modem, which can eat up to 20% charge in a day.On budget models (Redmi) 9A, POCO M3) That's particularly noticeable.
3. The paradox is that VoLTE should allow you to use the Internet during a conversation, but some firmware MIUI Block background data for WhatsApp, Telegram or Viber.
4. Roaming problems: In some countries (e.g. Turkey, Thailand) local operators do not support VoLTE for foreign countries SIM-This is why calls are not possible.
5. Conflict with Dual SIM. If you have two. SIM-VoLTE is only enabled on one card, the second one can stop catching the network or switch to the other. 2G.

⚠️ Attention! If you use Xiaomi with custom firmware (like LineageOS or Pixel Experience), disabling VoLTE can result in a complete loss of the ability to call.

Before disabling VoLTE, try alternative solutions:

• 🔄 Restart the phone – sometimes the modem malfunction is fixed this way.
• 📡 Manually select the operator network in Settings → SIM-maps and mobile networks → Choice of network.
• 🔧 Update the firmware - in new versions MIUI/HyperOS Frequently fix bugs with VoLTE.

Step-by-step: how to remove VoLTE on Xiaomi

If you decide to disable VoLTE, do it through standard settings or engineering menus. MIUI hyperos.

Method 1: Through standard settings (for most models)

This method works for 90% Xiaomi devices including Redmi Note 10/11/12, POCO F3/X4, Mi 11/12/13:

1. Open the Settings app.
2. Go to section. SIM-Maps and mobile networks (HyperOS may be called the Mobile Network).
3. Choose yours. SIM-card (if there are several).
4. Find the option: VoLTE (on older versions) MIUI) Improved calls or HD-voice (on new) Enable VoLTE (on global firmware)

Off.

Reboot your phone (required!).

If you don't have the option on the menu, your carrier doesn't support VoLTE, or you have outdated firmware. In this case, try method 2.

Method 2: Engineering menu (for experienced users)

This method is suitable for devices where VoLTE is not displayed in the settings, or if you want to disable it at the modem level. Be careful - wrong actions can disrupt the network!

💡

Before entering the engineering menu, write down the current settings APN You can find them in your operator's settings. → SIM-map → Access points (APN).

1. Open the Phone app.
2. Enter the combination: ##4636### on some models (POCO F5, Redmi K50) You may need to: #86583##
3. You will be taken to the Testing menu. Select Phone Information (or Phone Information).
4. Scroll down to the Set preferred network type section.
5. Select a mode: LTE/TDD/CDMA/EvDo/GSM/WCDMA (VoLTE on) GSM/WCDMA/LTE or 3G preferred (VoLTE disabled)

Turn off radio

Turn on radio

Reboot the phone.

⚠️ Attention! On some models (Xiaomi) 12T, Redmi K60) When you turn off VoLTE, you may lose the option in the standard settings through the engineering menu. To return it, reset the network settings in Settings. → System system → Resetting settings → Resetting mobile network settings.

Method 3: For firmware without VoLTE support

If you’re using custom firmware (like LineageOS or ArrowOS) where VoLTE is initially disabled but your phone is still trying to connect to it, try:

• 📱 Install Disable VoLTE module via Magisk (root rights required).
• 🔧 Edit the build.prop file by adding a line: persist.radio.volte_off=1
• 🔄 Back to the official firmware MIUI (If VoLTE is critically important).

💡

After the shutdown of VoLTE calls will pass through 3G or 2G, This can affect the quality of communications in low-coated areas!

VoLTE and Dual SIM: Features of setting up Xiaomi

If your Xiaomi supports two of your SIM-maps, VoLTE can be nuanced. By default, the technology works only on the main one. SIM-The card (the one you listed as a priority for calling) here's what you need to know:

• 🔄 Nana MIUI 13 and later you can turn on VoLTE for both SIM-The card, but only if both support the 4G.
• 📵 If you're on second SIM VoLTE is inactive, it will switch to 2G/3G during the first call SIM.
• 🔋 Double VoLTE increases battery consumption 25-30% — Keep this in mind when choosing a regimen.

To set up VoLTE for two SIM:

1. Go to Settings. → SIM-maps and mobile networks.
2. Select Double Settings. SIM (or dual SIM settings).
3. Activate the VoLTE option for both SIM (if there is).
4. If there is no option, check if the second one supports the option. SIM-map 4G (Insert it into slot 1 and check it out).

If, after activation, VoLTE on both SIM One of the cards stopped catching the net, try it:

• 🔄 Reboot the phone.
• 📡 Manually select a network for a problem SIM In Settings → Mobile network → Choice of network.
• 🔧 Reset network settings (see warning above).

VoLTE vs VoWiFi: What’s better on Xiaomi and how to combine them

In addition to VoLTE, Xiaomi has another technology called VoWiFi (Voice over Wi-Fi), which allows you to make calls over Wi-Fi, and these technologies can work together or conflict, and we'll see which one is better.

Xiaomi can include both technologies at the same time:

1. Activate VoLTE (as described above).
2. Go to Settings. → SIM-maps and mobile networks → Additionally. → Wi-Fi calls.
3. Enable the option and follow the operator's instructions (confirmation may be required via SMS).

If VoLTE stopped working after turning on VoWiFi (or vice versa), try:

• 🔄 Disable VoWiFi and restart your phone.
• 📶 Manually select the network 4G customized.
• 🔧 Reset network settings (see above).

⚠️ On some models, the Redmi Note 8 Pro, POCO F1) If VoLTE and VoWiFi work simultaneously, they can cause random reboots. If you notice a bug, turn off one of the technologies.

Frequent VoLTE issues on Xiaomi and their solutions

Even after you set up the right VoLTE, it can crash.-7 problems and ways of eliminating them:

If none of these methods worked, try a radical solution:

1. Make a backup copy of the data.
2. Perform a reset to factory settings (Settings → About Phone → Resetting).
3. After the reboot, do not restore the settings from the backup – configure VoLTE from scratch.

If the problem persists, it may be a hardware failure (such as a modem malfunction) in which case, contact the Xiaomi service center.

FAQ: Answers to Frequent Questions about VoLTE on Xiaomi