How to enable and configure MTS mobile Internet on Xiaomi: a complete guide 2026

Mobile Internet from MTS on Xiaomi smartphones (including the Redmi line, POCO and Mi) usually connects automatically after installation SIM-maps, but sometimes requires manual adjustments, problems can arise from incorrect settings. APN, outdated firmware or conflicts with network settings. This article will help you understand how to include 4G/5G, set up an access point and eliminate common errors – from the lack of a network icon to slow speed.

Xiaomi’s feature is that MIUI interface can vary depending on the firmware version and regional build (global, Chinese, European).We’ll look at universal ways for all models – from the budget Redmi Note 12 to the flagship Xiaomi 14 Ultra. If you just bought a phone or changed operator, our instructions will save time on finding solutions.

1. Check the basic conditions before setting up

Before you change your settings, make sure the problem isn’t in the obvious:

  • πŸ“Ά Signal Level: The network indicator should be displayed in the top panel (4G/5G/E). If it is not, check the coverage area of MTS on the official map.
  • πŸ“± Active. SIM-map: insert the card into the slot SIM 1 (only Xiaomi supports some models) 4G). Make sure that the service "Mobile Internet" is connected in the personal account of MTS.
  • πŸ”„ Flight mode: Turn it off in the notification curtain or in Settings β†’ Connections β†’ Flight mode.
  • πŸ”‹ Account balance: with zero or negative balance, the Internet can be blocked. USSD-team#.

If all the conditions are met, but the Internet is not working, move to manual configuration. On new Xiaomi models (for example, Redmi Note 13 Pro+), additional confirmation of mobile data access rights for individual applications may be required.

πŸ“Š What kind of smartphone you Xiaomi?
Redmi (Note, A, 10, etc.)
POCO (F, X, M, etc.)
Mi (11, 12, 13, etc.)
Black Shark
Other

2. Automatic setting of the MTS Internet

MTS offers automatic SMS-sending, which is suitable for 90% of users and takes less than a minute:

  1. Open the Messages app.
  2. Create a new SMS and send an empty message to 1234.
  3. In 10 to 30 seconds, the configuration will arrive with an SMS, click on the link in the message or confirm the installation.
  4. Reboot your phone (required!).

If SMS didn't come:

  • πŸ“΅ Check if Xiaomi is blocking service messages: Settings β†’ Annexes β†’ Communications β†’ Permits β†’ SMS.
  • πŸ”„ Switch the network to Only 3G (temporarily) in Settings β†’ SIM-maps and mobile networks β†’ Preferred type of network.
  • πŸ“ž Call the MTS hotline (0890) and request resending settings.

πŸ’‘

If you automatically configure the Internet only in your browser and not in apps, check the APN settings for IPv6 (see section 4).

3. Manual setting up APN for MTS on Xiaomi

If the automatic setting does not work, create an APN manually. settings for MTS (current for all regions of Russia in 2026):

Name: MTS INTERNET|

APN: internet.mts.ru|

Proxy: Not specified |

Port: Not specified |

Username: mts|

Password: mts|

Server: not specified |

MMSC: not specified |

MMS-proxy: not specified|

MMS-port: not specified|

MCC: 250|

MNC: 01|

Type of authentication: PAP|

Type APN: default,supl|

APN Protocol: IPv4/IPv6|

Roaming protocol: IPv4|

Turn on/off APN: On-->

Instructions for adding APN:

  1. Go to Settings. β†’ SIM-maps and mobile networks β†’ [Choose. SIM MTS] β†’ Access points (APN).
  2. Click Add (the + icon in the upper right corner).
  3. Fill in the fields according to the checklist above. Pay attention to the register: Internet.mts.ru (small letters!)
  4. Save the settings and select the profile you created in the APN list.
  5. Reboot the phone.

Important: On some Xiaomi models (e.g. Redmi 9A), the APN type field may be hidden, in which case you manually enter the comma: default,supl,mms (even if you don’t need MMS).

What to do if you do not save APN?
Chinese MIUI firmware (e.g. Xiaomi 12S Ultra) can block APN editing. Solution: 1. Install global firmware via Mi Flash Tool. 2. Use the APN Editor app from Google Play (root rights required). 3. Contact the service center for flashing on the European version.

4. Network type setup (4G/5G) on Xiaomi

By default, Xiaomi chooses automatic network mode, but for maximum speed, it is better to manually specify priority:

Xiaomi modelRecommended network regimeMax. speed (Mbps)
Redmi Note 12/13, POCO X54G (LTE)150–300
Xiaomi 13/14, POCO F5 Pro5G (SA/NSA)500–1000
Redmi 10A, POCO M54G (LTE only)150
Xiaomi Mix Fold 35G with priority1500+

How to change the network mode:

  1. Open the Settings. β†’ SIM-maps and mobile networks.
  2. Choose. SIM-map.
  3. Go to the preferred network type.
  4. Select: For 4G: LTE or 4G/3G/2G (auto). For 5G: 5G/4G/3G/2G (if supported).

Save and restart the phone.

πŸ’‘

On 5G-enabled models (such as Xiaomi 13T), 5G can automatically turn off roaming. To avoid this, set 5G Only mode (if available).

5. Solving Connection Problems

If the internet still doesn’t work after setting up, check the following points:

⚠️ Attention: Xiaomi with two SIM-Mobile data can automatically switch to the second SIM. Turn off this function in Settings β†’ SIM-map β†’ Data switching.

  • πŸ”„ Resetting network settings: Settings β†’ System system β†’ Resetting settings β†’ Reset your Wi-Fi, mobile network and Bluetooth settings. APN (see section 3).

Signal problems

  • Check if the case is blocking the antenna (relevant for the POCO X3 Pro with a metal body).
  • Turn on the Enhanced. LTE In Settings β†’ SIM-map β†’ [Yours. SIM] β†’ Improved. LTE.

Firmware update

Outdated software can cause conflicts with MTS networks. Update through Settings β†’ About phone β†’ System update.

If nothing helps, try an alternative APN for MTS:

Name: MTS 4G


APN: 4g.internet.mts.ru




User name: mts




Password: mts




Type APN: default,supl

6. Optimization of mobile Internet speed

Even with the right settings, the speed can be lower than expected.

  • πŸš€ Turn off background restriction: Settings β†’ Annexes β†’ Application management β†’ [Select the application] β†’ Mobile data: Enable Background and Unlimited Data.

Check the network load.

During rush hours (18:00-23:00), speed can drop. Use apps like Speedtest to monitor.

Change the DNS.

Go to Settings. β†’ SIM-map β†’ [Yours. SIM] β†’ Access points (APN) field DNS Please specify 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare).

⚠️ Attention: On Xiaomi with MIUI 14 and later may trigger "intelligent network switching" that reduces speed to save battery. β†’ Battery. β†’ Power regimens.

7. Frequent errors and their correction

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

Symptoms.Possible causeDecision
4G/5G is available, but the internet is not working.Incorrect APN or traffic blockingCheck the APN (Section 3) and Balance (*100#)
The Internet only works in the browserLimiting IPv6 or ProxyIn APN, install APN Protocol: IPv4
Constantly switching to 3GWeak 4G/5G signal or energy savingTurn off traffic savings in SIM settings
APN settings are not savedRestrictions of firmware or access rightsUse the APN Editor (root required)

If the problem persists, try the test mode:

  1. Enter the dialer ##4636##.
  2. Select Phone Information.
  3. In the Select Preferred Network Type section, select LTE only.
  4. Go back and check the Internet.
πŸ”Ή Why Xiaomi doesn’t work 5G MTS, although the phone supports?
Possible reasons: Yours SIM-card does not support 5G (Check in the MTS personal account or replace it with MTS Smart 5G). In the network settings selected mode 4G/3G/2G instead 5G/4G/3G/2G. Your region is not covered by the network 5G MTS (check the coverage map) on Xiaomi's Chinese firmware 5G It can be disabled software (requires firmware for the global version).
πŸ”Ή How to enable mobile Internet for a specific application?
In MIUI, you can allow or prohibit the use of mobile data for individual applications: Open Settings β†’ Applications β†’ Application Management. Select the desired application (for example, YouTube or Telegram). Go to Mobile Data. Turn on switches Background data and Unlimited data. To save traffic, turn off background data for unnecessary applications.
πŸ”Ή Can I use mobile Internet MTS on Xiaomi in roaming?
Yes, but there are nuances: in roaming, MTS can automatically reduce the speed to 128 Kbit/s (operator restriction) for full-fledged 4G/5G Connect the option "Full Internet in roaming" through *111*725# (On some Xiaomi models (e.g. Redmi Note) 11) roaming off 5G β€” Check the network settings. The cost of roaming traffic: ~10 RUB / MB (no options). We recommend connecting the package "Unlimited roaming" for 299 rub.
πŸ”Ή Why After Updating MIUI Mobile Internet is missing?
MIUI updates sometimes reset APN settings. To restore: Remove all saved APNs for MTS. Add a new APN manually (see Section 3). Reboot your phone. If the problem persists, roll back to the previous firmware version via the Mi Flash Tool or wait for a patch (usually released within a week of the major update).
πŸ”Ή How to check if the mobile Internet is working on the second SIM-map?
On two-sim Xiaomi (for example, POCO X4 Pro) mobile data is by default linked to SIM 1. To switch: Open Settings β†’ SIM-Maps and mobile networks. Select mobile data. Specify the desired data. SIM-Note: on some Xiaomi models, the second one is used SIM supportive 4G/5G (only 3G).