Setup 4G on Xiaomi phone: a complete guide for all models

You bought a new smartphone Xiaomi, inserted SIM-map, but mobile Internet is slow or not connected at all? The problem is often the wrong settings 4G-Even if your operator is supporting you. LTE, The phone can automatically switch to an outdated one. 3G or 2G, significantly reduces the loading speed.

In this article, we’ll look at all the possible ways to set up 4G on Xiaomi, from basic settings to hidden engineering menus, and the instructions are relevant for all models: Redmi Note 12/13, POCO X5/F5, Mi 11/12/13 and older devices on MIUI 12/13/14. You’ll also learn how to check the frequency support of your phone and what to do if 4G never worked.

Why Xiaomi doesn’t run 4G: The main reasons

Before you start settings, it is important to understand why the smartphone does not catch LTE-Here are the most common reasons:

• 📵 Incorrect network mode – the phone is configured only to 3G or 2G manually.
• 📡 Lack of frequency support – your Xiaomi may not support ranges 4G your operator (relevant to imported models).
• 🔄 Failure in settings APN — network-point (APN) lost after updating or resetting.
• 📱 The old version of the old version MIUI It may not work well with modern networks.
• 🔋 Battery savings – some energy saving modes turn off LTE self-reliance.

If 4G used to work and now it’s gone, it’s probably a problem with settings or software failure. If the smartphone is new and has never caught LTE, it’s worth checking your model’s frequency support. For example, the Redmi Note 10 Pro for India does not support the Russian B20 (800 MHz) bands that Tele2 is actively using.

⚠️ Note: If you bought Xiaomi abroad (e.g., the global version for China or India), there is a high risk that it does not support the Russian version. 4G-Check the compatibility on the FrequencyCheck website.

How to enable 4G on Xiaomi: basic setup

To start with, basic network settings are checked, and this method works on all Xiaomi smartphones, regardless of the MIUI version.

1. Open Settings (the gear icon on the main screen).
2. Go to section. SIM-Maps and mobile networks (or Mobile Network on older versions).
3. Choose yours. SIM-card (if two of them).
4. Click Network Type (or Preferred Network Type)
5. Set the value of 4G (preferably) or LTE/3G/2G (auto).

If you don't have one, your firmware is hiding those settings, and then try an alternative way:

• 🔍 Enter the Settings Search query Network Type.
• 📌 If nothing is found, go to the setup via the engineering menu.

After changing the settings, restart the phone. If 4G doesn't show up, check the APN hotspots - often they get lost after a MIUI update.

Set up APN for 4G on Xiaomi

APN (Access Point Name is the gateway address through which the phone connects to the Internet, 4G It may not work smoothly or it may not work at all. APN Xiaomi takes less than a minute:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map → Access points (APN).
3. Click on the three dots in the top right corner and select the New Access Point.
4. Fill in the fields according to your operator’s data (see the table below).
5. Save the settings and restart the phone.

If you haven’t set up your 4G APN yet, try it out.

• 🔄 Remove all old access points and create a new one.
• 📵 Temporarily shut down SIM-map back on.
• 🔧 Reset your network settings (see the next section).

Delete all existing APN|Create a new profile with operator data |Authentication Type Check (PAP)|Save and restart phone |Check internet speed after setting up

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Hidden 4G settings: engineering menu on Xiaomi

If standard methods don't work, you can try to set up the network through an engineering menu, which is suitable for power users, because the wrong changes can lead to failures.

To open the engineering menu:

1. Open the Phone app.
2. Enter the code ##4636##
3. Select Phone Information (or Phone Information).
4. Scroll down to the Set preferred network type block.
5. Select LTE only or LTE/WCDMA/GSM auto.

If this code doesn’t work, try alternatives:

• ##2263## - information about ranges.
• ##4636## → Information on SIM-map.

⚠️ Note: In the engineering menu, don't change settings you don't understand. For example, changing Band Mode can cause total network loss if the phone doesn't support the selected ranges.

On some Xiaomi models (e.g. Redmi 9A or POCO M3), the engineering menu is blocked by the manufacturer, in which case only firmware through Fastboot or contacting the service center will help.

Checking the support for 4G-frequency with your Xiaomi

If you tried all the ways, but 4G never worked, it's possible that your smartphone just doesn't support the right frequencies.

• 🌍 Imported models (e.g. Redmi) K50i for India).
• 📱 Old phones (Redmi) 4X, Mi A1).
• 🔄 Smartphones with custom firmware.

To check the compatibility:

1. Find out the exact phone model in Settings → About Phone → Model.
2. Go to Kimovil or GSMArena.
3. Find your model and check the supported ones. 4G-ranges (LTE bands).
4. Compare them to your carrier’s frequencies (see the table below).

For example, if your Xiaomi only supports B1/B3/B7 and the operator is actively using B20, then some areas will not work 4G.

• 🔄 Change the operator to the one whose frequency supports the phone.
• 📱 Buy a smartphone with full support for Russian ranges (for example, Redmi Note 12 Pro)+ 5G).

💡

If you travel frequently, choose models that support the maximum number of ranges (e.g. Xiaomi). 13T pro POCO F5 Pro. This guarantees stability. 4G abroad.

Resetting network settings on Xiaomi

If none of these methods worked, try resetting your network to factory settings, which will remove all stored Wi-Fi, Bluetooth, and mobile settings, including APNs.

How to reset:

1. Open the Settings. → SIM-maps and mobile networks.
2. Click on the three dots in the upper right corner.
3. Select Resetting of mobile network settings.
4. Confirm the action.

After discharge:

• 🔄 The phone will automatically pick up the settings. APN (may need to reboot).
• 📵 If 4G not appear, manually create an access point (see section about the APN).

⚠️ Note: Network reset does not delete personal data (photos, contacts, messages), but all saved Wi-Fi passwords will have to be re-entered. If you sync with Mi Account, they will automatically recover.

💡

Network resetting is the last step before you go to the service, and 80 percent of the time, it solves a 4G problem if it's caused by a software failure.

What if 4G never works?

If you’ve tried all the methods, but Xiaomi’s 4G still doesn’t work, the following problems are possible:

• 🔧 Hardware malfunction – the communication module is damaged (for example, after falling or getting moisture).
• 📶 Operator problems – temporary network problems (check on another phone).
• 🔄 Lockdown IMEI — If you bought a phone with your hands, it could be blacklisted.
• 📱 Incompatible firmware – custom or beta versions MIUI They may conflict with the network.

Actions in each case:

1. Hardware malfunction: Contact the service center, and it costs 1,500 to 3,000 to repair the communications module. ₽.
2. Operator problems: Call support or check the network status on the site (for example, MTS coverage card).
3. IMEI Block: Check the status by *06# on CheckIMEI. If the blocking is confirmed, contact the seller.
4. Firmware: Update MIUI to the latest stable version via Settings → About Phone → System Update.

If nothing works, the last option is Fastboot, which is a radical method that will bring the phone back to factory status, and you can find instructions for your model on the 4PDA forum.

FAQ: Frequent questions about 4G on Xiaomi