Set up the MTS Internet on Xiaomi phone: a complete guide with proven solutions

Have you just purchased a Xiaomi smartphone and faced the problem of not having mobile Internet from the operator MTS? 4G/5G? This is a familiar experience for many Redmi users, POCO and Mi -- despite the automatic setting of the network, sometimes manual intervention is required. 90% The problem is solved by correct configuration of access points (APN) or resetting network settings.

In this article you will find relevant instructions for 2026 on setting up the MTS Internet on any Xiaomi models - from the budget Redmi Note 12 to the flagship Xiaomi 14 Ultra. APN, but also hidden settings to speed up the connection, solve problems with IPv6 All recommendations tested on firmware. MIUI 14 and HyperOS.

If you've tried to set up the Internet yourself, but you haven't succeeded, look at the typical bug section, which describes some of the non-obvious reasons why a smartphone might not catch the network even when you set it right. APN, including conflicts with two-sim slots and restrictions on IMEI.

1. Preparing the phone before setting up the Internet

Before you start changing your network settings, make sure your Xiaomi is ready to set up:

• 📶 Check the signal level: the top notification panel should display the MTS coverage grid (even without the Internet). If there is no signal, the problem may be in the network. SIM-phone-card.
• 📱 Activate. SIM-map: new MTS card requires activation through USSD-team *111*01# or in the operator's personal office.
• 🔄 Update the firmware: outdated software may contain errors with networks 4G/5G. Check for updates in Settings → The phone. → Updating the system.
• 🔋 Battery charge: when setting up the network, the phone should not run out. Recommended level is at least 30%.

Pay special attention to the type SIM-MTS for the maps. 4G/5G requires nano-SIM or eSIM (for supported Xiaomi models). If you use an adapter for micro-SIM, this can cause problems with logging in. SIM (For example, from another operator with a connection to the device).

⚠️ Attention: If you have moved SIM-The card from another phone where she worked with 4G, But Xiaomi doesn't have the Internet, which may be due to the incompatibility of the operator's profile, and in this case, only a complete reset of the network settings (described in section 5) will help).

Automatic setting APN from MTS

The easiest way to set up the Internet is to use an automatic configuration from the operator, and MTS provides this service for free:

1. Open the phone application and type the combination: *111*655#.
2. Press the call button. It'll come in a few seconds. SMS customized.
3. Keep the profile (usually the system offers to do this automatically).
4. Restart your phone (required!) to make the changes effective.

If the automatic setting does not work:

• 📵 Make sure that SIM-The card is activated and is in the slot SIM 1 (on some Xiaomi models, the automatic setup only works for the first slot).
• 🔄 Try sending it. USSD-team again in 5-10 minutes.
• 📶 Check if your phone has Flight Mode or Traffic Saving enabled in Settings → Connections and sharing.

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If the Internet has not been automatically configured, but in the list APN profile "MTS Internet" - try to manually select it in the settings (section 3.

On some firmware MIUI The automatic setting can be blocked by the security system, in which case a notification will appear: "The settings from the operator cannot be applied:

1. Go to Settings. → Annexes → Application management → Three points (⋮) → Special access → Installation of packages.
2. Find the phone in the list and allow the installation of packages.
3. Repeat shipment. USSD-setup APN.

3. Manual setting up APN for MTS on Xiaomi

If the automatic method didn't work, set the access point manually. APN for MTS in 2026:

Instructions for adding APN to Xiaomi:

1. Go to Settings. → SIM-maps and mobile networks → [Choose. SIM-map] → Access points (APN).
2. Click Add Access Point (or ➕ top-right).
3. Fill in the fields as above. Leave the parameters that are not specified empty.
4. Save the settings and select the profile you created in the APN list.
5. Reboot your phone is a must-do step to apply the changes.

Mandatory fields completed (APN, username, password)|

Type APN contains "default" |

Protocol established IPv4/IPv6|

Profile selected in the list APN (check-mark)|

Phone rebooted after saving-->

For Xiaomi models with support 5G (for example, Xiaomi 13T Pro, Redmi Note 12 Pro+) check in:

• 📡 B Settings → SIM-maps and mobile networks → Preferred network type selected mode 5G/4G/3G/2G (motor-car).
• 🔄 If 5G Not catching – try manually pointing to APN protocol IPv6 (instead IPv4/IPv6).

⚠️ Attention: On some firmware MIUI manually APN smack-up 4G/LTE It's a visual bug, check the speed of the connection using Speedtest.

4. setting up VoLTE and Wi-Fi Calling for MTS

If you want to use voice calls through 4G (VoLTE) and Wi-Fi calls, require additional settings, which are available on most modern Xiaomi (starting with the Redmi Note 10 and later) and allow you to improve the quality of communication.

To activate VoLTE:

1. Make sure yours is yours. SIM-card supports VoLTE (check in the personal account of MTS or through the USSD *111*525#).
2. Go to Settings. → SIM-maps and mobile networks → [Choose. SIM MTS] → Challenges through LTE.
3. Turn on the VoLTE switch (may be called Voice Calls via the LTE).
4. In the settings APN (section 3) add the Type field APN Ims (should be: default, supl, ims).

To set up Wi-Fi Calling:

• 📞 Enable the function in Settings → SIM-maps and mobile networks → [SIM MTS] → Wi-Fi calls.
• 🔄 If the option is inactive, update your firmware or check the support for the feature for your Xiaomi model on the MTS website.
• 🏠 Connect to a stable Wi-Fi network (corporate networks with portal authorization may not work).

If the Internet is lost after the VoLTE is turned on:

1. Get back to the settings. APN And make sure that in the Type field APN All three values are indicated: default, supl, ims.
2. Try to create a separate profile APN specifically for VoLTE with a name MTS IMS and ims.
3. Restart the phone and check the connection.

5. Resolving Internet problems of MTS

If after all the settings the Internet still does not work, use this diagnostic manual:

Verification of baseline parameters

• 🔍 Make sure mobile data is enabled (slider in quick settings or Settings) → Connections → Mobile data).
• 📵 Check if modem modem or access point is activated – these features can block the Internet on the main device.
• 🔄 Switch Network Mode to Settings → SIM-map → Preferred type of network only 4G (If there was a car).

5.2. Resetting network settings

If the problem persists, reset:

1. Go to Settings → About Phone → Settings Reset → Reset your Wi-Fi, mobile network and Bluetooth settings.
2. Confirm the action (you may need to enter a pattern lock or PIN-code).
3. After restarting, reset the APN (section).

Diagnostics SIM-map

Internet problems may be related to the SIM-card:

• 🔄 Transfer the card to another slot (if the phone supports Dual). SIM).
• 📱 Check the card on another phone – if the Internet does not work there, contact the MTS salon for a replacement.
• 🔍 Make sure that there are enough funds in the account (even with an unlimited tariff, access is sometimes blocked with a negative balance).

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If the Internet has been working after resetting, but after a few hours it has disappeared again, the reason may be the automatic update of the operator configuration. → SIM-map → Update of operator configuration.

Verification IMEI and lockdown

Some Xiaomi models (especially those imported from abroad) may be blocked from using the same system. IMEI to work with Russian operators:

1. Dial *#06# and you will see one or two numbers. IMEI.
2. If not IMEI Null or Invalid is a sign of a software failure.
3. For recovery. IMEI Contact the service center or use official Xiaomi tools (for example, Mi Flash with an authorized account).

⚠️ Note: If you bought your phone from hand, check it for locking on the phone. IMEI via imei.info. some devices may be blacklisted by operators.

6. Optimization of Internet speed MTS

Even if the Internet works, it may be slower than expected. Here's how to improve the connection:

6.1. Set up your preferred network

B Settings → SIM-maps and mobile networks → Preferred type of network:

• 📶 For maximum speed, select 5G/4G/3G/2G (motor-car).
• 🔄 If 5G Unstable - just install it. 4G (Sometimes this increases speed due to a more stable signal).
• 🏙️ In a bad environment, try it only. 3G — It can be faster than unstable. 4G.

6.2. Disabling traffic savings

The following can artificially limit the speed:

• 📉 Turn off traffic savings in Settings → Connections and sharing → Saving traffic.
• 🔄 B Settings → Battery and performance → Select High Performance Mode (Reboot may be required).

6.3 Use of alternatives DNS

Sometimes standard. DNS MTS are slow. Try replacing them:

1. Go to Settings → Connections → Private DNS.
2. Select the Private DNS Host Name and type:

Save the settings and restart the phone.

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To check the real speed of the Internet, use the Speedtest app from Ookla. Run the test in different places - the speed can vary greatly even within the same area due to the congestion of MTS towers.

6.4 Customization for online gaming and streaming

If you use the mobile internet for gaming (PUBG Mobile, Genshin Impact or streaming (YouTube, Twitch), activate:

• 🎮 Game mode in Settings → Special facilities → Game mode (reduces delays).
• 📶 In the settings SIM-Cards include improved coverage 4G (if there is such a clause).
• 🔄 Turn off Auto-Update apps in the Play Store → Settings → Auto-update applications so that background downloads do not occupy the channel.

7. Frequent errors and their solutions

Let’s analyze the typical situations faced by Xiaomi users when setting up the MTS Internet:

Pay particular attention to situations where the Internet works in some applications but does not work in others.

• 🔒 With operator-level traffic blocking (e.g. for torrents). Solution: Use VPN.
• 📱 With background traffic restrictions in MIUI. Check in Settings → Annexes → Application management → [Select the application] → Mobile data.
• 🔄 With conflict. IPv6. Try it in. APN set up IPv4.

8. Set up the Internet on specific Xiaomi models

Some Xiaomi models have unique network setup features. Consider the most popular:

8.1. Redmi Note 11 / 12 series

These models often have a problem with automatically switching between the two. SIM-map:

• 🔄 To secure the Internet for a specific SIM, Go to Settings. → SIM-map → Default data and select SIM MTS.
• 📶 If 5G No catches – update the firmware to the latest version MIUI 14 or HyperOS.

8.2. POCO F4 / F5

Nana POCO Snapdragon processors may not work with VoLTE due to lack of certification:

• 📞 To activate VoLTE, install regional firmware (for example, EEA Global instead).
• 🔧 From the Engineering Menu (#4636###) select Phone information and install VoLTE provisioned.

8.3. Xiaomi 13 / 14 series

The flagship models support 5G SA (standalone, but require special settings:

• 📡 B Settings → SIM-map → Type of network, select 5G SA/NSA.
• 🔄 If the speed 5G Low - turn off the Smart 5G in battery settings (this is an energy saving function).

FAQ: Frequent questions about setting up MTS on Xiaomi