How to turn on mobile Internet on Xiaomi smartphone: instructions for all models

Xiaomi’s mobile internet may suddenly stop working after update MIUI, shift SIM-Most often, the problem is solved in a few steps - but many users lose hours finding the right menu or settings. APN. In this article you will find the most relevant ways to include 4G/5G For all modern models, Redmi Note 12, POCO X5, Mi 13 etc.), including solutions to rare errors such as “Emergency Calls Only” or the absence of a network icon.

We'll not only break down the basic settings, but also the hidden developer settings that help when standard methods fail, such as how to manually select a network type (e.g. LTE only) or reset a communication module configuration without losing data. All instructions tested on MIUI 14 and HyperOS (2026).

Checking the basic conditions before setting up

Before digging into the settings, make sure the problem isn't with external factors. Here are 4 critical points that are often overlooked:

• 📶 Operator coverage area: even if there is a tower nearby, your SIM can be tied to another region (relevant to MegaFon/Beeline with roaming). IMEI.
• 💳 Active fare: some rates (for example, "For calls" from Tele2) block mobile Internet. Go to the operator's personal account or dial *100#.
• 🔄 Rebooting the smartphone: after installation SIM upgrade MIUI The communication module can "hang." Turn off Xiaomi for 30 seconds, then turn on.
• 📱 Slot for SIM: Two-Simplified Models (Redmi Note 11 Pro, POCO F4) The internet only works in the slot. SIM 1 by default. Move the map.

If everything is fine, but the Internet is still down, go to the settings. Start by checking the data mode:

⚠️ Note: Xiaomi with HyperOS (2026) has changed the way to set up the network. → SIM-Maps and mobile networks, it won’t work – use the current screenshots below.

How to turn on mobile data: step-by-step instructions

The fastest way to activate the Internet is to use the notification bar, but if the mobile data icon is inactive or not, you'll have to dig deeper.

1. Open Settings (the gear icon on the main screen).
2. Go to the Connections and Sharing section → Mobile network (on HyperOS) or SIM-maps and mobile networks (on MIUI 12-14).
3. Choose yours. SIM-card (if two of them).
4. Activate the mobile data switch (should turn blue).
5. Make sure that data transfer is enabled in roaming (if you are not in your home region).

If the mobile data switch is inactive (grey), the problem may be:

• 🚫 Lack of network: Check the signal indicator in the status bar.
• 🔒 PIN-code SIM: Unlock the card through the notification “Enter” PIN».
• 📵 Hardware lock: on some Xiaomi for China (models with the prefix C in the title) mobile Internet is disabled at the firmware level.

If the Internet does not work after turning on mobile data, go to setting up APN access points - this solves 70% of problems.

APN setting for all operators (MTS, Beeline, MegaFon, Tele2)

APN (Access Point Name) is the "address" that a smartphone connects to the carrier's Internet. If it's configured incorrectly, you'll see an H+ or 4G icon, but the pages won't load. Here's how to fix:

1. Open Settings → Connections and Sharing → Mobile Network → Additional → Access Points (APN).
2. Click on + (add a new access point) or select an existing one.
3. Fill in the fields according to the table below (leave the rest of the parameters by default):

After filling, save the settings and restart the smartphone. If the APN is not saved or disappears after a reboot, this is a sign of a firmware failure.

1. Reset network settings: Settings → About Phone → Settings Reset → Reset Wi-Fi, mobile network and Bluetooth settings.
2. If it does not help, reset all settings (without deleting data).

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On some Xiaomi firmware for Europe (EEA), APN hotspots are hidden. To see them, click on the three dots in the upper right corner of the screen from APN and select Reset to Default Values.

Selection of network type: 2G, 3G, 4G (LTE) or 5G

Xiaomi automatically chooses the network type by default, but sometimes this leads to problems, such as in some regions, MegaFon has disabled 3G, and the smartphone gets stuck on it, instead of switching to 4G.

1. Open Settings → Connections and Sharing → Mobile Network → Network Type.
2. Choose one of the options: LTE (4G) is optimal for cities; LTE/3G/2G (auto) – if 4G is unstable; 5G only – for models with support (Mi 11 Ultra, Redmi K50 Pro); 2G only – for saving charge (the Internet will be slow).

On Xiaomi with a MediaTek processor (e.g. Redmi 10C, POCO M4 Pro), voice communication may be lost when selecting 4G Only mode. In this case, use LTE/3G/2G.

If the Internet does not appear after the change of the type of network, check:

• 📡 Presence 4G/5G in your area (on the operator's website);
• 🔧 Update of the firmware: old versions MIUI may not support new standards (e.g., VoLTE or 5G NSA);
• 🛠️ Antenna damage: if the smartphone fell, the contact of the communication module may have gone away (especially relevant for the mobile phone). POCO F3 metal-framed).

Error Solving: “No Network”, “Only Emergency Calls”, “No Internet Access”

If after all the manipulations the Internet has not worked, use this table of diagnostics:

To diagnose hardware problems, use a communication test:

1. Dial ##4636###.
2. Select Phone Information.
3. Check the status of Mobile Network Type (should be LTE or NR for 5G).

⚠️ Note: If #4636### is displayed in the Unknown section IMEI Or Mobile network state, which is a sign of damage to the communication module, in which case only repairs in the service center (cost for Xiaomi - from 3 000) will help. ₽).

Hidden settings for experienced users

If the standard methods didn’t work, try these advanced tricks:

• 🔧 Reset the Communication Module settings: Open Settings → About the phone. 5 times press the version. MIUI (Developer mode activates. Go back to Settings. → Additionally. → For developers, find Network Settings Reset and select Mobile Network Settings Reset.

Manual selection of the network

In Settings → Mobile Network → Network operators choose Selection manually and wait for the scan. Sometimes the smartphone sticks on a weak tower.

Modem mode change

In ##4636## → Phone Information → Set preferred network type, try LTE only or NR/LTE/TD-SCDMA/GSM variants.

These methods will help if the problem is caused by:

• 🧩 Firmware conflict (for example, after installing customized hardware) ROM);
• 🔗 Blocking the operator (for example, Xiaomi with a link to China);
• 🔧 Failure of the modem (often after updating) MIUI).

Frequent questions and answers

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If after all the manipulations mobile Internet on Xiaomi did not work, the problem with 90% probability hardware: damaged module, antenna or contacts SIM-In this case, contact the service center (repair costs 2,500-5000). ₽ model-wise).