How to enable only 4G on Android: all methods

In a situation where the mobile data is unstable and the data transfer speed drops to a minimum, automatic network selection is often to blame. Your smartphone tries to switch between 2G, 3G and 4G standards in search of a better signal, but instead loses connection or gets stuck in a slow band EDGE. Forced installation of the mode "LTE only" allows you to fix the device on the fastest available network, providing stable ping and high download speeds.

However, it is worth understanding that fixing to one communication standard has its own risks. In areas with unstable 4G coverage, you may completely lose access to the Internet, as the phone will no longer “fall off” to slower, but working networks. In addition, on some models, incoming calls may not go through in this mode if the technology is not activated VoLTE. Therefore, before making changes to the radio module settings, it is important to weigh the pros and cons.

In this article we will look at all the legal ways to switch the network mode on Android. We will look at standard settings, hidden engineering menus for different processors, and an advanced method via a computer using USB debugging. You'll learn how to safely manage your device's RF modules to get maximum performance from your data plan and carrier equipment.

Why do you need to force 4G on at all

The main reason why users tend to limit the operation of the modem to the standard LTElies in the imperfection of the base station switching algorithms. When you are at the edge of the coverage area, the smartphone may constantly jump between 3G and 4G. This process, called handover, causes micro-disconnections in the connection, which is critical for online games or video calls. Fixing to one standard eliminates these jumps.

Another important reason is saving battery power. Constantly searching for a signal and switching between frequencies requires significant energy consumption from the processor and radio module. If you are sure that there is stable 4G in your location, then blocking unnecessary modes can extend the battery life of the device by 10-15%. This is especially true for older models with worn-out batteries.

It is also worth noting the impact on speed in congested networks. Sometimes operators deliberately drop subscribers to 3G when the load on LTE towers is high. Forced mode forces the phone to ignore these load balancing commands, holding the connection at high speed until the signal physically disappears. However, in remote areas, this can lead to a complete loss of connection.

⚠️ Attention: In the "LTE Only" mode, regular voice calls (GSM/UMTS) may not work on many smartphones if your operator does not support VoLTE technology. Make sure this feature is activated in the settings or check with your provider for support, otherwise you will become unavailable for calls.

Standard method through Android settings

The safest and simplest method does not require installing third-party software or connecting to a computer. Smartphone manufacturers often hide this option deep in the menu, but it is available on most devices running pure Android or shells like MIUI and OneUI. First you need to open the main settings menu of your device.

Go to section Connections or Mobile network. The name of the item may differ depending on the firmware version and phone model. For example, on Samsung the path usually looks like Settings → Connections → Mobile networks, and on Xiaomi - Settings → SIM cards and mobile networks. Your goal is to find the item responsible for the type of network.

Find the parameter "Network Type" or "Network Mode". In the list that opens, you will see options like “5G/4G/3G/2G (auto)”, “3G only” and others. You need to select an item whose name contains the word LTE and no mention of other standards, or select the highest possible priority for 4G. If the "LTE Only" item is not in the list, you will have to use other methods.

It is worth considering that some telecom operators block the ability to select a network mode at the firmware level, which they distribute through their communication stores. In this case, the standard menu will contain only automatic selection. This is a common practice for budget devices sold complete with a SIM card.

Using the engineering menu for different processors

If the standard settings do not give the desired result, the engineering menu comes to the rescue. This is a hidden section of the system intended for engineers to test equipment. It is accessed through a special code in the Phone application. However, the set of commands is radically different depending on what processor is installed in your smartphone.

For processor-based devices MediaTek (often found in Xiaomi, Realme, budget Samsung) the code is used ##3646633##. After entering, you will be taken to the menu Engineer Mode. Go to the Telephonytab, then select BandMode. In the list Set Preferred Network Type find the option LTE Only and click Set. This action will instantly switch the radio module.

Owners of smartphones with processors Qualcomm Snapdragon (many flagships, Motorola, some Asus models) are less fortunate, since there is no universal code. The combination ##4636##often works, which opens the testing menu. There you need to select Phone information and in the drop-down list "Set your preferred network type" select LTE Only. If the code does not work, the manufacturer may have blocked access.

What to do if the codes do not work?

If entering the code in the dialer does not give anything, try installing the "MTK Engineering Mode" application from the Play Market for MediaTek processors. For Snapdragon, sometimes activating developer mode and using ADB commands, which will be discussed below, helps.

Be extremely careful in the engineering menu. There is no protection against erroneous actions, and changing the wrong parameters can lead to the phone no longer seeing the SIM card or even losing the ability to make calls until the settings are reset. Change only the parameters related to network selection (BandMode).

⚠️ Attention: On Huawei and Honor smartphones with Kirin processors, access to the engineering menu through codes in the latest versions of EMUI is closed. To change the network mode on these devices, you often need to connect to a PC and special software, or obtain root access.

Advanced method via ADB and computer

The most reliable method, which works on almost any Android smartphone with USB debugging enabled, is to use the utility ADB (Android Debug Bridge). This method allows you to send commands directly to the system, bypassing interface restrictions. You will need a computer (Windows, macOS or Linux) and a USB cable.

First you need to activate developer mode on your phone. Go to Settings → About phone and quickly click 7 times on the item "Build number". After this, a new section will appear in the settings menu For developers. Inside, find and enable the item "USB debugging". Confirm access permission when connecting to a PC.

Install package Platform Tools to your computer. Open a command prompt (CMD) or terminal in the utility folder and connect your phone. Enter the command adb devicesto make sure the device is visible. To switch the network mode, use the following command, which changes the global preferred network setting:

adb shell settings put global preferred_network_mode 11

Here the number 11 corresponds to the mode LTE Only for most devices. If you need to return automatic selection, use the command adb shell settings put global preferred_network_mode 0 (or another value depending on the model, often 0 or 9). This method is good because it does not require superuser rights and works even on locked bootloaders.

Table of codes and parameters for different devices

Since the Android ecosystem extremely fragmented, there is no universal pill. Below is a summary table to help you navigate the methods for various popular brands and platforms. Use it as a cheat sheet when searching for the menu you need.

Brand / Processor	Engineering menu code	Menu path	Features
Xiaomi / Redmi (MediaTek)	##3646633##	Telephony → BandMode	SIM card selection required
Samsung (Exynos/Snapdragon)	#0011# or ##4636##*	Service Mode / Phone Info	Often hidden in the service menu
Poco / Realme	##4636##	Information about the phone	Works on most models
Pixel / Motorola	##4636##	Phone Information	Pure Android, stable operation
Huawei / Honor	No universal	Through the Project Menu application	Special installation required. APK

Please note that numbers in ADB commands or menu item names may vary slightly depending on the Android version. For example, on Android 10 and above, some settings have been moved or protected by additional permissions. Always check the current network status at the top of the screen after applying the settings.

Possible problems and their solutions

After switching to the mode "4G only" users often encounter a number of problems that may seem fatal, but are actually solvable. The most common situation is the message “No network” or a constant search, despite the fact that there is a tower nearby. This means that at that particular point, the LTE signal is not strong enough to hold the connection, and the phone cannot drop to 3G.

Another common problem is the inability to make outgoing calls. As mentioned earlier, voice communication in 4G networks is carried out over packet data transmission (VoLTE). If the operator does not support this technology in your region or on your tariff, the phone simply will not be able to install a voice channel. There is only one solution - temporarily return the "Auto" mode or turn on 3G.

It is also possible that errors may occur in the operation of messengers. If the 4G signal is poor, data packets may be lost, resulting in an endless "sending" status on WhatsApp or Telegram. In such cases, do not torture the device, return automatic network selection. Stable 3G is better than unstable 4G, which constantly breaks the connection.

⚠️ Attention: Settings interfaces and access codes may change with firmware updates. If these codes do not work, look for up-to-date information for your specific model and version of Android on specialized forums, since manufacturers often block access to engineering menus for security reasons.

Frequently asked questions (FAQ)

Is it safe to constantly keep the "LTE Only" mode?

Yes, it is safe for the hardware of the phone. The radio module will not overheat and will not fail. The only risk is that you may miss an important call if you find yourself in an area where there is no 4G coverage and the phone cannot switch to 3G. Use this mode situationally when you need stable speed.

Why are the settings reset after a reboot?

Some manufacturers specify network priority in configuration files, which are overwritten when the system boots. To save the setting permanently, you may need root access and editing system files or using specialized applications like "Force LTE Only (4G/5G)" from the Play Market that run in the background.

Does this mode affect the rate of battery drain?

The impact is twofold. On the one hand, the phone does not waste energy searching for other networks, which saves battery. On the other hand, if the 4G signal is weak, the modem operates at maximum amplification power, which, on the contrary, can speed up the discharge. The effect depends solely on the quality of coverage in your area.

Is it possible to enable 5G in the same way?

Yes, the logic is the same. In the engineering menu or via ADB, you need to select a mode containing the designation NR (New Radio) or 5G Only. However, the 5G network still has very limited coverage, and fixing on it will lead to a complete loss of connection in 95% of cases, since the phone will not be able to switch to 4G.

Are root access needed to change the network mode?

In most cases, no. Standard settings, the engineering menu or ADB commands are quite enough to temporarily or permanently change the mode. root access is required only if the manufacturer has blocked all software capabilities for changing this parameter at the system kernel level.