How to connect and configure mobile Internet on Xiaomi smartphones: a complete guide

Why Xiaomi is not working on mobile Internet and how to fix it

Xiaomi smartphones are some of the most popular devices on the market due to their combination of price, performance and functionality. However, even they sometimes face problems connecting to the mobile Internet. The reasons can vary from a simple error in the APN settings to hardware malfunctions of the communication module. In this article, we will discuss all possible ways of connecting and diagnosing, from basic to advanced.

It is important to understand that the configuration algorithm depends on several factors: the phone model (Redmi Note 12, POCO X5, Mi 11, etc.), the firmware version (MIUI 14, HyperOS), the telecom operator (MTS, Beeline, MegaFon, Tele2) and even the region of use. For example, some models for Russia and the CIS have 5G bands disabled by default, which requires manual activation.

If you've just bought a smartphone or changed your SIM card, start by setting it automatically. 80 percent of the time, the system is the operator's setting, but if the Internet doesn't work, don't panic: below you'll find solutions for all situations, including rare errors like "no network" at full signal levels.

Method 1: Automatic connection of mobile Internet

The easiest method is to let the smartphone customize the network settings itself, which works for most modern Xiaomi models on MIUI 12 and later.

1. Put it in. SIM-card in the tray (on hybrid slot models, make sure the card is installed in the slot) SIM 1 for network priority).
2. Go to Settings. → SIM-maps and mobile networks.
3. Choose yours. SIM-Map and activate the switch "Mobile data".
4. Wait for the 4G, 5G or E icon to appear in the status bar.

If the Internet is not working after 1-2 minutes:

• 🔄 Restart your phone – sometimes it resets temporary communication module crashes.
• 📶 Check coverage area – in basements or remote areas, the signal may not be available.
• 📱 Make sure that SIM-The card is activated by the operator (especially if the card is new).

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On HyperOS models (e.g. Xiaomi 14), the path to settings may be different: Settings → Connections → Mobile network.

Method 2: Manually configure APN access points

If the automatic setting does not work, you will have to enter the APN (Access Point Name) settings manually, which is unique for each operator and region. Below is a table with the current settings for the main Russian providers (data checked in June 2026):

To enter these settings:

1. Open the Settings. → SIM-maps and mobile networks → [Yours. SIM] → Access points (APN).
2. Click on the + icon in the upper right corner.
3. Fill in the fields as above. Leave the rest of the parameters (proxy, port, server) blank.
4. Save the settings and select the profile you created in the list.

The name field is filled in without errors |

APN introduced in lower case |

The authentication type corresponds to the table |

Protocol APN chosen correctly (IPv4/IPv6)|

Saved profile marked with a tick-->

If the Internet does not appear after saving, try:

• 🔄 Reboot your phone – sometimes new settings are only applied after a reboot.
• 📵 Turn on/off flight mode for 10 seconds.
• 📱 Delete all the others APN-Profiles leaving only one (setting conflict is a common cause of failures).

Method 3: Configure preferred network type (4G/5G/3G)

By default, Xiaomi chooses automatic network mode, but sometimes this leads to a slow 3G connection instead of 4G or 5G.

1. Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Type of network.
2. Choose one of the options: 5G/4G/3G/2G (auto) is recommended for most users; 4G only if 5G is unstable in your region; 3G only to save charge (but the speed will be lower).

For models with 5G support (Xiaomi 13 Pro, Redmi Note 12T Pro, etc.) additional options are available:

• 📶 Priority 5G — forced 5G Mode (can reduce battery life).
• 🔄 Dynamic choice – the smartphone itself switches between 4G and 5G.

If the Internet has disappeared after the change of mode:

⚠️ Attention: On some firmware MIUI In the manual selection only 4G Voice communication (VoLTE) may be disabled, in which case return the setting to the Auto or update the software.

Method 4: Diagnostics of problems with SIM-map and communication module

If none of the previous methods worked, the problem may lie in the hardware.

1.Verification SIM-map

• 🔍 Check the card for damage – scratches on the chip or chips can disrupt contact.
• 🔄 Try inserting. SIM In another phone, if there is no network, the operator has a problem.
• 📱 Check out the slot – on hybrid models (Redmi Note 11) slot SIM 2 may not support 4G.

Testing of the communication module

Enter the code in the phone application:

##4636##

Go to the “Phone Information” menu and pay attention to:

• 📶 Network status – if written Disabled or Emergency Calls Only, SIM unreactivated.
• 🔄 Type of network - should LTE (4G) or NR (5G). If UMTS (3G) or GSM (2G), check the settings APN.

3. Resetting network settings

If all the parameters are correct, but the Internet does not work, reset:

1. Go to Settings → About Phone → Resetting → Resetting Network Settings.
2. Confirm. Once you reboot, you'll have to re-enter your Wi-Fi passwords and set up your APN.

⚠️ Note: On HyperOS models, network resets can also remove saved VPN-configurations and settings of Bluetooth devices. save important data in advance.

Method 5: Optimizing the speed of mobile Internet

Even if the Internet works, the speed can be slow. Here's how to improve it.

1. Disabling background traffic

Some apps consume the Internet in the background to limit them:

1. Open Settings → Applications → Permissions → Autostart.
2. Turn off auto-run for unnecessary applications (such as social networks or instant messengers).
3. Go to Settings. → SIM-maps and mobile networks → Data traffic and set limits for greedy apps.

2. Incorporation of traffic saving mode

MIUI has a built-in data compression mode:

• 📉 Activate “Traffic Savings” in Settings → Connections → Saving traffic.
• 🔄 Enable Data Compression in Mi Browser or Google Chrome.

3.Amendment DNS-server

Sometimes the standard DNS operator is slow. Try alternatives:

1. Install the DNS Changer app from Google Play.
2. Choose public DNS, for example: 🌍 Google DNS: 8.8.8.8 and 8.8.4.4 🌍 Cloudflare: 1.1.1.1 and 1.0.0.1

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The most effective way to speed up the internet is to use a combination of browser traffic compression and public DNS, which can increase page load speeds by 20-30%.

Method 6: Solving Rare Problems

If the standard methods did not help, consider the non-obvious reasons:

1. Conflict with two SIM-map

On dual-SIM models (POCO X5 Pro, Redmi Note 12 Pro+), there are sometimes conflicts between cards.

• 🔄 Turn off mobile data for the second SIM customized.
• 📱 Change the cards in places - slot SIM 1 usually takes priority.
• 🔧 Update the firmware - in older versions MIUI There were two-card management bugs.

2. IMEI lockdown

If the phone was wanted or bought by hand, its IMEI could be blocked.

1. Enter *#06# and your IMEI will appear.
2. Check it on the operator’s website or through imei.info.

If IMEI is blocked, contact the operator with documents on the phone.

3. Problems after firmware update

Sometimes, after an update to MIUI or HyperOS, network settings are lost.

• 🔄 Reverse to the previous version of the software via Fastboot (instructions are available on the forum) 4PDA).
• 📱 Perform reset to factory settings (don’t forget to make a backup!).

Hardware malfunctions

If nothing helps, there may be problems with:

• 📡 Antenna module - check if there were falls or moisture.
• 🔌 Slot. SIM-cards - try to clean the contacts carefully with alcohol.
• 🔋 Power module - with a discharged battery (<15%) some models are offline 4G.

FAQ: Frequent questions about mobile Internet on Xiaomi