How to Turn Only 4G on Xiaomi: 5 Ways to Work (Including Hidden Settings)

Are you tired of the constant jumps between 3G and 4G on your Xiaomi, which is causing Internet speed to suffer? Orperhaps your smartphone stubbornly clings to a weak 5G signal, although LTE coverage in your region is more stable? In this article, we will examine all the ways to forcely lock a 4G network only, from standard MIUI settings to hidden commands of the engineering menu.

The problem of unstable switching between generations of networks is relevant for most models of Redmi, POCO and Mi – from the budget Redmi Note 12 to the flagship Xiaomi 14 Pro. The reasons can be different: firmware errors, incorrect operator settings or hardware limitations of the modem chip. But the solution is always the same – to forcely block all networks except LTE (Band 3/7/20 for Russia).

Important: Before changing your settings, check if your 4G tariff supports (some carriers, such as Tele2, may require a separate option). Also note that on some models (such as POCO F5 with MediaTek Dimensity 920), a forced 5G shutdown can reduce the maximum download speed.

1. Standard method: through settings SIM-map

The easiest method is to use the built-in MIUI options, which is suitable for most Xiaomi smartphones based on MIUI 12-15 (including global and Chinese versions of the firmware).

1. Open the Settings app (cog icon).
2. Go to section. SIM-Maps and mobile networks (or mobile networks on some models).
3. Choose yours. SIM-card (if two of them).
4. Tap on the network type (or preferred network type).
5. In the list of options, select LTE (or 4G) only.

If you don't have LTE Only on your menu, the manufacturer has hidden it in the firmware, and then move on to the following.

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On some models (e.g. Redmi) 10C) after the choice LTE smack-up 4G It's in the status bar, but the Internet speed is going to be high.

2. Hidden Engineering Menu (#4636##)

If standard settings don’t allow you to choose 4G only, try the engineering menu, which is available on all Xiaomi smartphones, but access to it can be blocked on Chinese firmware.

Instructions:

1. Open the phone app and enter the combination: ##4636##
2. In the menu that opens, select Phone Information (or Phone Information).
3. Scroll down to the Set preferred network type block.
4. In the drop-down list, select LTE only.
5. Click Update (or Refresh) and restart your smartphone.

⚠️ Note: On some models (POCO X5 Pro, Redmi Note 11 Pro+) After these manipulations, the voice communication (calls) may disappear. If this happens, return the setting to the LTE/TD-SCDMA/CDMA/EvDo/GSM/WCDMA.

3. AT commands for forced 4G inclusion

If the engineering menu is not available, you can use it. AT-This method works on 90% of Xiaomi models, but requires the installation of additional software.

Steps:

1. Install the Shortcut Master app (or MTK Engineering Mode for smartphones on MediaTek) from Google Play.
2. Open the app and search for Secret Codes → AT Command Terminal.
3. Enter the command to force 4G: AT+QCFG="nwscanseq",01.1 Then: AT+QCFG="nwscanmode",1,1 And confirm: AT+QCFG="iotopmode",0.1
4. Reset the device.

To check the current network mode, enter:

AT+QNWINFO

The answer should be “LTE” without mentioning NR5G or WCDMA.

4. editing the build.prop file (for advanced)

This method is only suitable for users with unlocked bootloader and root rights, and allows you to permanently lock the 4G network at the system level.

Instructions:

1. Install a file manager with root support (such as Root Explorer or Solid Explorer).
2. Go to /system/build.prop.
3. Find a line. ro.telephony.default_network And change it to: ro.telephony.default_network=9 (where 9 — code).
4. Save the file, set the rights 644 (rw-r--r---).
5. Reboot your smartphone.

⚠️ Warning: Incorrect editing build.prop can lead to bootloop ( looped download).Before changes, back up the file!If the smartphone doesn't turn on after the reboot, restore the original version via TWRP.

5. Firmware custom modem software

If all previous methods did not work, there is an extreme option – to flash alternative modem software. This is true for smartphones with Qualcomm Snapdragon chips (for example, Xiaomi 12T, POCO F4 GT), where network settings are strictly tied to firmware.

What you need:

• 🔧 Unlocked Loader (Mi Unlock Tool).
• 📱 Custom recovery (TWRP Or OrangeFox).
• 📡 Modem software with support for LTE-only (see forums) 4PDA or XDA Developers for your model).
• 🔄 Backup of the current modem (required!).

Process:

1. Download the archive with the modem (for example, modem_lte_only.zip).
2. Download to TWRP (hold Power + Vol Up when enabled).
3. Backup the modem partition (Backup → Select modem).
4. Select a new modem through Install → Select an archive.
5. Clear the cache (Wipe) → Dalvik/ART Cache and reboot.

6 Problems after LTE-only and their solutions

Even if you only turn on 4G, you can have side effects, and here are the most common ways to eliminate them:

• 📞 Calls not working: Enable in VoLTE settings (Settings) → SIM-map → Voice through LTE). If there is no option, run a modem with VoLTE support.
• 📶 Network signal missing: Check if your carrier supports 4G In your area (for example, MTS in some areas only works in the region). 3G). Use the NetMonster app to analyze coverage.
• 🔋 Fast battery discharge: Forced mode 4G It can increase energy consumption. Turn off the background activity of applications (Settings) → Battery → Optimization).
• 🌐 The Internet is not working: Remove and re-add APN-operator profile (Settings) → Mobile network → Access points (APN)).

If the network is not stable after all the manipulations, check the IMEI Some Xiaomi (especially those purchased on AliExpress) may have a “broken” device» IMEI, That's why the modem is not working properly with the networks. IMEI team-wise:

*#06#

If you see a Null or 000000000000 instead of 15 digits, you need to restore the IMEI using the Maui META or SN Writer Tool.

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On smartphones with support 5G (for example, Xiaomi 13T) forced-out NR-Modem can improve battery life by 10-15%, as the Snapdragon 8 Gen 2 chip is less loaded on the search 5G-network.

FAQ: Frequent questions about setting up 4G on Xiaomi