VoLTE on Xiaomi phone: why you need, how to turn on and what models support the technology

Have you ever noticed that while talking on the phone, the Internet suddenly “slows down”, and after the call is completed, the pages in the browser are updated with a delay? or annoyed by intermittent communication in places with unstable coverage? Chances are, your Xiaomi just doesn't use VoLTE technology, which is a communication standard that solves these problems once and for all, but why is it necessary in practice, and why operators are actively switching to it, abandoning outdated ones. 2G/3G-network?

In this article, we will discuss how VoLTE (Voice over) LTE) It changes the quality of calls on Xiaomi smartphones, what models support it, and why without this feature, your phone may be out of the game by 2026. MIUI And we'll warn you against the typical mistakes that lead to communication problems.

What is VoLTE and why is it better than regular calls?

VoLTE (Voice over LTE) — This is voice transmission technology on networks. 4G (LTE), Unlike traditional calls that work through 2G or 3G. The big difference is that VoLTE converts your voice into digital data packets and sends it over an Internet channel, like messaging, but unlike WhatsApp or Telegram, you don't need a separate tariff, it works through a separate service. SIM-map.

Why is this important to Xiaomi owners?The fact is that most modern smartphones (including Redmi models, POCO and flagship Mi) default on legacy networks for calls, even if you have 4G active for the Internet.

• 📉 Internet speed drop during a conversation (phone switches to the Internet) 3G/2G).
• 🔊 Poor sound quality – noise, echoes, communication breaks.
• ⚡ Fast battery discharge due to constant switching between networks.
• ⏱️ Delays in connection (up to 5-10 seconds when dialing the number).

In 2026, operators Beeline, MegaFon, MTS and Tele2 are actively turning off 2G/3G networks in favor of 4G/5G, so without VoLTE, your Xiaomi may soon lose the ability to call at all. For example, in Moscow and St. Petersburg, there are already “4G only zones” where phones without VoLTE are left without communication.

5 Key Benefits of VoLTE for Xiaomi

Going to VoLTE not only gives you a stable connection, but also a number of hidden bonuses that many people don't know about.

1. Sound quality is like messengers. HD Voice technology allows you to hear your interlocutor more clearly, without distortion, and the difference is especially noticeable in noisy places, such as on the street or in transport.
2. Instant connection: Calls start in 1-2 seconds (versus 5-10 seconds in 3G), which is critical for emergency calls.
3. And the parallel Internet, you can talk and use YouTube, Google Maps, or TikTok at the same time, without any cliffs.
4. Battery savings: The phone does not waste energy switching between networks, which increases the operating time by 10-15%.
5. Support for video calls via SIM. Some operators (for example, "MegaFon") allow you to call ViLTE (LTE video) without additional applications.

But there is a downside: not all Xiaomi models support VoLTE out of the box, and in some regions operators have not yet completed network setup, for example, in the outback of VoLTE can work unstable, although problems are rare in cities.

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If after turning on VoLTE noticed that the battery began to sit down faster, check the settings Battery Mode in MIUI. Sometimes the system limits the background activity of network processes, which leads to communication interruptions.

What Xiaomi smartphones support VoLTE: the full list

In theory, all Xiaomi phones on Qualcomm Snapdragon processors (400, 600, 700, 800) and MediaTek Helio (G-series, P-series, Dimensity) support VoLTE.

• 📱 Flagships (Xiaomi) 13/14, Mi 11/12, Black Shark – Out of the box support, often with ViLTE.
• 📱 Mid-size segment (Redmi Note) 11/12, POCO X5/F5) — VoLTE is available, but may require manual activation.
• 📱 Budget models (Redmi) 10A, POCO M5) — Support depends on the region and firmware version.
• ❌ Outdated devices (Redmi) 4X, Mi A1) — VoLTE may not be present at iron level.

To find out if your Xiaomi technology supports, check out:

1. Xiaomi’s official support website (the specification section of your model).
2. Phone settings: Settings → SIM-maps and mobile networks → [yours SIM] → Enable VoLTE.
3. Mi Community app – it often publishes lists of supported devices for specific regions.

⚠️ Note: If your Xiaomi is purchased in China (local version), VoLTE can be disabled software. ROM or EEA ROM.

How to enable VoLTE on Xiaomi: step-by-step instructions

Activation of VoLTE on most Xiaomi smartphones takes no more than a minute, but there are a few pitfalls.

1. Check the support of the operator. Make sure that your rate and SIM-For example, MTS has all the rates except Super MTS for laptop, and Tele2 has only tariffs with unlimited minutes»).
2. Update your firmware. Go to Settings → About Phone → Update your system and install the latest version of MIUI. Many models only have VoLTE after the update.
3. Activate the function in settings: Open Settings → SIM-maps and mobile networks. Choose yours. SIM-If you have more than one card, find Enable VoLTE or Improved Calls and move the slider to the right. If you don't have one, see What to do if VoLTE doesn't turn on».
4. Reboot the phone. Once activated, it is recommended to restart the device so that the changes take effect.
5. Check the work. Call another number and pay attention: 📶 The status bar should have a VoLTE icon or HD. 🔊 The sound should be cleaner, without noise. 🌐 The Internet should work during a conversation.

Operator support check | Update MIUI to the latest version | Activate VoLTE in SIM| Phone Reboot | Test call to check-->

If after turning on VoLTE calls began to break off or communication disappears, try:

• Disable and turn on the function again.
• Reset network settings: Settings → SIM-maps and mobile networks → Resetting mobile network settings.
• Calling in support of the operator – sometimes a link is required IMS-profile to your number.

Hidden settings VoLTE: how to make work on unofficial firmware

If your Xiaomi doesn’t officially support VoLTE (like the Chinese version of the Redmi K50), but the hardware allows it, you can try activating the feature via an engineering menu or third-party firmware.

Ways for Advanced Users:

• 🔧 Engineering menu: Dial on the keyboard ##4636##. Select Phone Information. Scroll down to Set preferred network type and select LTE only LTE/UMTS Go back and find the VoLTE provisioned item — if you have one, turn it on.

Global ROM firmware

Install the official global firmware via the Mi Flash Tool. Instructions are available on the 4PDA or XDA Developers forums.

Patches through Magisk

For rooted devices, there are modules like VoLTE Enabler that force support to be enabled, but this can disrupt other features like Google Pay.

⚠️ Warning: Changing the settings in the engineering menu may cause a failure IMEI or loss of network. Before experimenting, save a backup through Settings → Additionally. → Backup and reset.

Frequent VoLTE issues on Xiaomi and how to fix them

Even if VoLTE is enabled, Xiaomi users often encounter bugs, and here are the most common bugs and ways to fix them:

If none of these methods worked, try:

1. Insert SIM-card to another slot (if the phone has two slots).
2. Disable Wi-Fi Calling (sometimes conflicting with VoLTE).
3. Reset your phone to factory settings (pre-decide backup!).

In extreme cases, contact the Xiaomi service center - the problem may be in the hardware malfunction of the modem.

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If MIUI VoLTE has stopped working after the update, try rolling back to the previous firmware version. Sometimes new builds contain bugs that only fix the following patches.

VoLTE vs Wi-Fi Calling: What’s Best for Xiaomi

Many people confuse VoLTE and Wi-Fi Calling, but they are different technologies with different use cases.

When to use something:

• 📶 VoLTE – for everyday calls in a city where there is a stable phone 4G.
• 📶 Wi-Fi Calling – in uncoated areas (basement, country house) or abroad (to avoid roaming).

On Xiaomi, both functions can be enabled simultaneously.

1. Activate VoLTE (as described above).
2. Enable Wi-Fi Calling: Settings → SIM-maps and mobile networks → [yours SIM] → Wi-Fi calls.
3. The phone will automatically switch between technologies depending on the signal.

FAQ: Answers to Frequent Questions about VoLTE on Xiaomi