How to set up mobile Internet MTS on a Xiaomi smartphone: full instructions with solutions to problems

MTS connectivity issues on Xiaomi smartphones are one of the most common complaints users have had. Even if the SIM card is active and the balance is positive, the device may persistently display an “H+” icon instead of 4G or not connect at all, due to incorrect APN hotspot settings, firmware conflicts, or Qualcomm/Mediatek modems on Redmi, POCO, and Mi phones.

In this article, we will discuss all the ways to set up MTS mobile Internet on Xiaomi, from automatic setting parameters to manually entering APN and solving typical errors. Special attention will be paid to the nuances for new models (for example, Xiaomi 14 or POCO F6), where additional steps may be required due to the updated HyperOS shell. If you are faced with the problem of “the Internet is, but the sites do not open” or “the network is not at all” – here you will find proven solutions.

First, determine what your situation is:

• 📱 New SIM-Card: Internet does not work from the first connection.
• 🔄 Resetting – after updating or resetting, mobile Internet is missing.
• 📶 Poor coverage – network is available, but speed is extremely low (e.g. E instead of E) 4G).
• ⚡ 5G Not catching – on a supported device (Xiaomi) 13T Pro, Redmi Note 12 Pro+) no badge 5G.

1. Automatic setting of mobile Internet MTS

The easiest way is to let Xiaomi’s system download network settings from the operator itself, which works 80 percent of the time, but can fail if:

• 📡 SIM-MTS map released until 2020 (obsolete parameters) APN).
• 🔧 The smartphone has custom firmware (for example, LineageOS or Pixel Experience).
• 🛠️ The phone was purchased abroad (regional restrictions).

To start the automatic setting:

1. Open the Settings app → SIM-maps and mobile networks.
2. Choose yours. SIM-MTS card (if there are several of them).
3. Slip on Access Point (APN).
4. In the upper right corner, press three dots (⋮) and select Reset to default values.
5. Reboot your smartphone.

If the Internet does not work after the reboot, try sending it to the Internet. USSD-request:

*111*247#

After that, the phone will receive an SMS with the configuration - save it and restart the device.

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On some Xiaomi models (e.g. Redmi 10C), the automatic setup may not work due to operator locking, in which case you go to manually enter APN (Section 2).

2. Manual setting up APN for MTS on Xiaomi

If the automatic method didn't work, you'd have to enter the settings manually. APN (Access Point Name) is the "address" that connects the phone to the operator's Internet. For MTS, the current settings (2026) are as follows:

Instructions for adding APN:

1. Go to Settings. → SIM-maps and mobile networks → Access points (APN).
2. Click on + (add a new APN) or select an existing MTS profile to edit.
3. Fill in the fields as above. Leave the rest of the parameters (e.g., MMSC or Proxy) blank.
4. Save the settings and select the profile you created in the APN list.
5. Reboot the phone.

The "APN" field is filled in as Internet.mts.ru|

APN type includes default,supl|

Username and password - mts|

No additional gaps at the beginning/end of the fields-->

Important for Xiaomi owners with HyperOS: In newer versions of the shell (starting with HyperOS 1.0), the APN menu can be hidden behind the additional option “Additional Settings”. If you do not find the section, use the search in the settings on the request “APN”.

3. 4G/5G setup on Xiaomi for MTS

If the internet is working but the speed is poor (for example, 3G is displayed instead of 4G), check your network settings:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose. SIM-map.
3. Go to Network Type.
4. Set a 4G (recommended) or 5G/4G/3G/2G (auto) value for new models.

For forced 5G inclusion (if the smartphone supports, for example, Xiaomi 13 Ultra or POCO F5 Pro):

1. Enter the code in the phone app: ##4636##
2. Select Phone Information.
3. In the Network Type Installation section, select NR/LTE/UMTS/GSM (if available).

If, after switching over, 4G The internet is gone, return the settings to 3G/2G (Check your balance – there may not be enough money in your account to 4G-tariff.

4. Solving Connection Problems

If after all the manipulations, the mobile Internet MTS on Xiaomi still does not work, use this instruction:

⚠️ Note: Before resetting network settings, save important SMS (For example, with confirmation codes – they will be deleted!

• 🔄 Reset Network Settings: Go to Settings → System and device → Resetting settings → Reset your Wi-Fi, mobile network and Bluetooth settings. Reset after the reboot APN.
• 📶 Coverage check: Make sure your area has MTS coverage (check on the coverage map).If you are roaming, you may need to enable the option "Internet in roaming" (USSD: *111*651#).
• 🛠️ Firmware Update: Go to Settings → The phone. → Update the system and install the latest patches. Especially relevant for Xiaomi on HyperOS, where modem bugs are fixed with monthly updates.
• 🔋 Problems with SIM-map: Try to rearrange SIM to another slot (if there are two) or test the card on another phone. SIM older 5 For years, contact the MTS salon for a replacement - outdated cards may not support 4G/5G.

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If the Internet is up after resetting, but it's gone again after a few hours, it could be energy saving "SIM-maps and mobile networks" except battery optimization (Settings) → Battery → Optimizing the battery).

5. Acceleration of mobile Internet MTS on Xiaomi

Even if the Internet is working, the speed can be slow due to the wrong modem settings.

• 📊 Turn off background restriction: In Settings → SIM-maps and mobile networks → Data transfer check that the Background data transfer item is enabled.
• 🔗 Use it. DNS Google or Cloudflare: In the settings APN change the field DNS 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare) will help if sites are slow to open.
• 📵 Turn off traffic savings: In some firmware MIUI/HyperOS There's a hidden option called "Saving Mobile Traffic." To turn it off, type it into the phone app: ##4636##, Then select the phone information. → Menus (⋮) → Save traffic and deactivate it.

For advanced users: If your Xiaomi is on a Qualcomm processor (like the POCO X6 Pro), you can manually select your preferred 4G bandwidth.

1. Install Network Signal Guru from Google Play.
2. In the LTE Band section, select the priority ranges for MTS: B3 (1800 MHz), B7 (2600 MHz), B20 (800 MHz).
3. Save the settings and restart the phone.

6. Features of settings for different Xiaomi models

Some Xiaomi smartphones have unique nuances when setting up mobile Internet. Consider the most popular series:

For Chinese versions of Xiaomi (for example, smartphones marked CN in the model name) may need to unlock the 4G/5G ranges. This is done through an engineering menu or special applications like MTK Engineering Mode (for devices on Mediatek).

⚠️ Warning: Incorrect actions in the engineering menu can lead to loss of the network! If you are not sure, contact the service center.

Verification of MTS balance and tariff

Often the problem is not the phone, but the tariff or lock on the part of the operator.

• 💰 Balance and Packages: Send USSD-request *100# or *111*09# (traffic-detailing).
• 📄 Active Services: Check if paid Internet-blocking options (such as Parental Control) are connected *111*5#.
• 🔒 Debt lock: If the balance is negative, the Internet will be disconnected.

If you have unlimited rates, but the speed is limited (for example, after 20 GB), check the tariff conditions on the MTS website. Some tariffs (for example, "All over 500") reduce the speed to 64 Kbps after exhausting high-speed traffic.

For corporates SIM-MTS cards may require a separate setup APN. Check your business administrator or customer service by calling 0890.

8. Alternative ways to connect to the Internet

If the mobile Internet MTS on Xiaomi has not worked, use alternative methods:

• 📶 Modem mode: Connect the phone to the laptop USB and enable modem modem in settings (Settings) → Access point and modem: If the Internet is running over a PC, the problem is settings. APN phone-on.
• 🔄 other SIM-Map: Temporarily install SIM If the Internet works, there is a problem in the MTS card (return to the salon for a replacement).
• 📡 Wi-Fi Calling: If the mobile network is weak but there is Wi-Fi, activate Wi-Fi Calls in the settings SIM-This will allow you to call and use messengers even without coverage. 4G.

If none of these methods worked, contact the Xiaomi service center – the problem may be in the hardware (for example, a faulty modem).

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Before you visit the service center, do a full reset (Settings → About Phone → Reset). If the Internet starts working after that, the problem was with the software settings, not the hardware.

FAQ: Frequent questions about setting up mobile Internet MTS on Xiaomi