How to turn on 4G Xiaomi: All ways + error solving

Have you bought a new Xiaomi or upgraded your firmware, but mobile internet is slower than expected?Maybe your smartphone defaults on an outdated 3G or even 2G standard, even though your tariff and carrier network support 4G (LTE) – a problem that is especially relevant for Redmi Note, POCO and budget lines, where the manufacturer sometimes saves on automatic network setup.

In this article you will find the most relevant ways of forced inclusion. 4G We're going to go to Xiaomi in 2026, including hidden settings for advanced users, and we're going to look at not only the standard menu path, but also alternative methods. USSD-And if the Internet never works, there's a checklist at the end of the article to diagnose the problems.

Why Xiaomi may not work with 4G

Before you get to the settings, it’s important to understand the root of the problem. Here are 5 of the most common reasons why your Xiaomi isn’t catching 4G:

• 📱 Resetting network settings after update MIUI or resetting the phone to factory settings.
• 📡 Operator does not support 4G In your area (or requires additional activation).
• 🔧 Incorrect network mode in settings (for example, only selected) 3G or 2G).
• 📶 Weak signal – the phone automatically switches to a more stable but slower network.
• 🛠️ Software bugs in firmware (especially relevant for customized ROM orbeta MIUI).

If you've recently changed SIM-card or operator, the problem may lie in the inconsistency of settings APN. For example, Tele2 and Iota often require manual settings, while MTS and Beeline are usually set up automatically.

Method 1: Enable 4G through standard settings

The easiest and safest method is to use the built-in MIUI menu. The instructions are suitable for all modern Xiaomi models, including the Redmi 12/13, POCO X5/F5, Xiaomi 13/14 and older devices on the MIUI 12-14.

1. Open the Settings app (cog icon).
2. Go to section. SIM-maps and mobile networks (or mobile network on some firmware).
3. Choose yours. SIM-card (if two of them).
4. Tap on the network type (or preferred network type).
5. Set a 4G (preferably) or LTE value. If there is no such option, select 3G/4G (auto).

When you change your settings, restart your phone. If the network indicator on the top panel changes to 4G or LTE, the problem is solved. If not, move on to the next way.

Method 2: Manual selection of network operator

Sometimes the phone can't automatically connect to 4G because of operator identification errors, and manual network search can help:

1. Go to Settings → SIM-cards and mobile networks.
2. Choose yours. SIM-Map and tap Network Operators.
3. Turn off the option Automatically and wait until the phone finds the available networks.
4. In the list, select your operator (for example, MTS or Beeline) marked with 4G or LTE.
5. Confirm the selection and restart the device.

If it's not on the list. 4G-network, this may mean that:

• 🚫 Your operator does not provide 4G in your area (check the coverage on the operator's website).
• 🔄 SIM-The card is outdated and does not support LTE (Contact the Salon for a Replacement).
• 📵 The phone is locked under another operator (relevant for devices purchased abroad).

💡

If after manually selecting the network, the 4G indicator appeared, but the Internet does not work, check the APN settings (see section below).

Method 3: Set up APN for 4G

APN (Access Point Name) is the Internet entry point your carrier provides, and if the APN settings are lost or not automatically applied, 4G may not work even with the right network settings. Here's how to check them:

1. Go to Settings. → SIM-maps and mobile networks → [yours SIM] → Access points (APN).
2. If there are several profiles, choose the one that matches your operator (for example, Internet.mts.ru for MTS).
3. If there are no profiles or they are incorrect, click Add APN and enter the data manually (see table below).
4. Save the settings and restart the phone.

If the 4G APN has not worked after setting up, try resetting the network settings:

1. Go to Settings → About the phone → Reset settings.
2. Select Network Reset (not to be confused with a full reset!).
3. Confirm the action and restart the device.

Method 4: USSD-activation 4G

If previous methods have not worked, try activating the 4G through USSD-These are free short queries that are sent to the operator to customize the services:

• 📶 MTS: Dial *111*466# and call (call).
• 📶 Beeline: send SMS textual 4G 5252.
• 📶 MegaFon: dial *558# and follow the instructions in the menu.
• 📶 Television2: type *155*1# check available services.

After sending the team, wait. SMS-response from the operator (usually within 1-5 minutes) 4G not activated, contact support – it is possible that this option is blocked on your tariff or requires an additional fee.

⚠️ Attention: USSD-If the team does not work, check the current code on the official website of the operator or through the support chat.

Method 5: Hidden settings for advanced users

If standard methods don't work, you can try the engineering menu or the developer's settings, and these are ways to be careful, because the wrong changes can disrupt the network.

Method 1: Engineering Menu (MTK)

For phones running MediaTek processors (e.g. Redmi 9/10, POCO M3/M4):

1. Open the Phone app and type ##4636##.
2. Select Phone Information.
3. Scroll down to the Network Type Installation block.
4. Select LTE only or LTE/WCDMA/GSM auto.

Method 2: Developer mode

For all Xiaomi models:

1. Activate Developer Mode: Go to Settings → About Phone and tap the MIUI version 7 times.
2. Return to the main settings menu and open Additional → for developers.
3. Find the option Mobile Network Configuration and set 4G/LTE as your priority mode.

⚠️ Warning: Changes to the engineering menu can lead to unstable network operation or even loss of communication.If you are not sure about your actions, skip this method and contact the service center.

💡

If the network signal is lost after the changes in the engineering menu, return the settings to the factory settings or reset via ##4636# → Radio reset.

What to do if 4G never works

If none of these methods worked, the problem could be deeper.

• 🔍 Check it out. SIM-Insert it into another phone if you 4G It works, the problem is your Xiaomi.
• 📡 Check the coverage: check on the operator’s website if it is supported 4G in your area (for example, in some villages and on the roads may be only 3G).
• 🔄 Update the firmware: go to Settings → The phone. → Update the system and install the latest patches.
• 🛠️ Reset your network settings: how to do this, described in the section about APN.
• 📞 Contact us for support: if nothing helps, contact the operator or service center Xiaomi.

If you suspect a hardware malfunction (for example, the phone doesn’t catch the network even in 2G), it could be:

• The communication module (an antenna or chip) is damaged.
• Oxidized contacts SIM-map.
• Sloppy. SIM-Tray (check if the card is tightly inserted).

In such cases, self-repair is not recommended – contact the authorized Xiaomi service center.

FAQ: Frequent questions about 4G on Xiaomi