How to check what frequencies 4G and 5G Supports your Xiaomi smartphone: 7 working ways

Buying a Xiaomi smartphone is always a compromise between price and functionality, but there is one thing that many people forget: network frequency support. 4G on vacation abroad or whether they can take advantage of 5G From a new carrier in your city, for example, Redmi Note 12 Pro.+ The Chinese market does not support European ranges. B20 (800 MHz, which is why it will only work in Russia 3G-mode of operation.

In this article, we will look at all the ways to check supported bands, from standard settings to engineering menus and online services, and learn how different versions of the same smartphone for different regions, why and how they are used. POCO X5 The global firmware may be “losing» 5G, And how to avoid buying a phone with a stripped-down frequency, and at the end, a table of compatibility of popular models with networks of Russian operators.

If you're already experiencing a network problem or are planning to buy, this guide will help you avoid errors, starting with the simplest one: checking through your phone's settings.

1. Checking Supported Frequencies Through Android Settings

The fastest, but also the most limited, way is to look at network information in standard settings, which is suitable for basic diagnostics, but will not show a complete list of bands.

Open the Settings. → SIM-maps and mobile networks → [Choose. SIM] → Network type. Here you'll see the available modes:

• 📶 2G (GSM) — base-frequency 900/1800 MHz (used in Russia) B8 and B3).
• 📱 3G (WCDMA) — ranges B1 (2100 MHz) and B8 (900 MHz).
• 🚀 4G (LTE) — The current band may be displayed here (for example, B3 or B7), not a complete list.
• ⚡ 5G (NR) — If the option is active, the phone supports at least one fifth-generation range.

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Note: If there is no item in this menu 5G, It doesn't always mean there's no support. MIUI The option is hidden and enabled via the engineering menu (more on this below).

To see the current band being used, go to Settings → The phone. → Version. MIUI and tap 7 times on the item Core. The test version will open, where you can see the active frequency in the Network section (for example, the active frequency will be displayed in the Test version, LTE Band 3: However, this method does not work for all models.

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If there is no "Network Type" option in the settings, try inserting SIM-Some Xiaomi firmware hides advanced settings if detects only one SIM.

2. Engineering menu: hidden data about frequency support

Engineering menu (Engineer Mode) is a powerful diagnostic tool that allows you to see the full list of supported bands, as well as include hidden functions (for example, the main feature of the program, 5G The method works on most Xiaomi, Redmi and other smartphones. POCO, but it requires caution.

How to open the engineering menu:

1. Open the Phone app.
2. Enter the combination: ##4636###.
3. Select Phone Information (or Phone Information).
4. Scroll down to the Set preferred network type block.

Here you will see all available modes of the network, including the list of bands. LTE/5G (If supported, for example, for Xiaomi. 13 Pro can be displayed on this menu:

LTE: B1/B2/B3/B4/B5/B7/B8/B20/B28/B38/B40/B41


NR: n1/n3/n5/n7/n8/n28/n41/n77/n78

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Warning: Do not change the settings in the engineering menu without understanding the consequences! For example, forced selection of incompatible band (for example, the following is the case, B29 for Russian operators, it may lead to a complete loss of the network before resetting the settings.

3. Codes USSD Hidden commands for network diagnostics

In addition to the engineering menu, Xiaomi has special USSD-codes that output technical information about the communication module. These commands are universal for most smartphones on Qualcomm Snapdragon and MediaTek.

Basic codes for frequency check:

• 🔍 ##4636## - information about the phone and network (analogue of the engineering menu).
• 📡 ##2263## – displays the current band (e.g, LTE Band 7).
• 🔄 ##7262626## - Test of the communication module (shows supported ranges).
• 📶 *#0011# – Samsung service menu (works on some Xiaomi with Exynos chips).

Once you enter the code ##2263##, you will see a screen with technical data.

LTE Band: 3 (1800 MHz)


NR Band: n78 (3500 MHz)

This means that the phone is currently using Band 3 for 4G and n78 for 5G.

💡 Tip: If the code doesn't work, try adding a character at the end (e.g. ##4636##*#). MIUI This format is required.

4. Online services for checking frequency compatibility

If you need to know the supported bands before you buy a phone or compare several models, use specialized services. They collect data from official specifications and user tests.

Top.-5 check-in:

• 🌍 FrequencyCheck – Enter Xiaomi model and the service will show all supported bands with indication of regions.
• 📱 Kimovil – a database with filters by country and operator (for example, you can see that Xiaomi is a user of the same name). 12T Pro doesn't support B20 rustic).
• 🔍 GSMArena – In the characteristics of any model there is a Network section with a full list of frequencies.
• 📡 WillMyPhoneWork – checks compatibility with a specific operator (for example, MegaFon) 5G).
• 🛠️ DeviceBeast – Compares models for network support (useful for choosing between Redmi Note 12 and Redmi Note 12) POCO X5).

Example of FrequencyCheck check:

1. Choose the Xiaomi brand.
2. Enter the model (e.g. Redmi Note 11 Pro)+ 5G).
3. Please indicate the country (Russia) and the operator (MTS).
4. The service will show which bands are supported and which are not (for example, n78 for 5G It will be marked green if the operator uses it).

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Attention: Online services may contain outdated data! Always check the information with the official Xiaomi website or the documentation by phone, POCO F4 GT GSMArena can be listed without support B20, Although the global version supports it.

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If you buy Xiaomi from AliExpress or overseas sites, be sure to check out the support for bands for your region! CN) They are often devoid of European and Russian frequencies.

5. Applications for network frequency analysis

If you want detailed real-time information (like what band is in use or signal quality), install one of the specialized apps that not only show the ranges you support, but also the signal strength, nearby towers, and even the connection history.

The best Android apps:

• 📊 NetMonster shows the current band, signal strength and neighboring cells. 5G.
• 🔍 MTK Engineering Mode – for smartphones on MediaTek (e.g. Redmi) 10C).
• 📡 LTE Discovery – analyzes all available bands LTE and their priorities.
• 🌐 Network Signal Guru – Professional tool with support 5G SA/NSA.

How to use NetMonster:

1. Install the app and give access to phone functions.
2. Go to the Serving Cell tab – the current band is displayed here (for example, LTE B3).
3. On the Neighbors tab, you can see the neighboring towers and their frequencies.
4. In the Bandwidth section, check the channel width (e.g. 20 MHz for the bandwidth). B7).

💡 Tip: If the application displays Unknown Band, update the database in the settings or check the compatibility of your model on the developer website.

Install NetMonster or LTE Discovery|Provide all the requested permissions|Connect to a mobile network (not Wi-Fi)|Compare the displayed bands with the official model specifications|Check the strength of the signal (should be) > -100 dBm)-->

6. Comparison of versions of the same model: why bands are different

The same Xiaomi smartphone can be sold in different versions, and the list of supported frequencies will differ. For example, Xiaomi 13 has at least 3 modifications:

• 🇨🇳 Chinese version (CN) — Optimized for local operators, often lacks B20 and B8.
• 🌍 Global version (Global) – supports most European and Russian bands.
• 🇮🇳 Indian version (IN) — may not support B3 (1800 MHz, which is actively used in Russia.

How to find out the version of your phone:

1. Go to Settings. → The phone.
2. Find the Model item (for example, 2210132G For the Redmi Note 12 Pro+ 5G).
3. The last letters represent the region: G is the global version, C is Chinese, I is Indian, R is Russian (less common).

Example of differences POCO X5 Pro 5G:

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Note: When buying Xiaomi in the secondary market (such as from Avito or Yula), always check the model marking! 4G/5G It can be critical. For example, the Chinese Xiaomi. 12 (2201122C) Russia will only work in Russia 3G Operators using B20.

7. Frequent problems and solutions

If your Xiaomi doesn't catch 4G/5G, Despite the support of bands, the reasons can vary from operator settings to hardware constraints.

Problem 1: The phone can't see 5G, though it should

Problem 2: No network in roaming

• 🌍 Check if the phone supports bands of local operators (e.g. in Turkey used) B3 and B7, a in Thailand — B1 and B3).
• 📱 Enable data roaming: Settings → SIM-map → Data roaming.
• 🔄 Reboot your phone or turn on/off the plane mode.
• 📡 Manually select the operator network: Settings → Mobile network → Network operators.

Problem 3: Weak signal 4G, though the band is supported

• 📶 Check the signal strength in the NetMonster app (should be higher) -110 dBm).
• 🔧 In the engineering menu, increase the transmission power (option) RF Power Boost, if available).
• 📱 Update the firmware of the communication module (if available for your model).
• 🛠️ Check the antenna – sometimes after falls, the contacts will go away (especially in Redmi with a plastic case).

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If after all the manipulations 5G It doesn't appear, check it out. IMEI Some Chinese versions of Xiaomi have a "gray" IMEI, which operators block to access new networks.

FAQ: Answers to Frequent Questions