How to disable VoLTE on Xiaomi: step-by-step instructions

Modern Xiaomi and Redmi smartphones use advanced voice technologies by default, and VoLTE is one of them. This feature allows you to make calls over a 4G network, providing high audio quality and fast connection. However, not always operator technologies or firmware features work correctly, causing users to want to deactivate the option.

Often, device owners are faced with a situation where the phone “flyes” into 2G or 3G after a call, and the Internet stops working before the conversation is completed. In other cases, subscribers notice that battery consumption has increased significantly due to the constant search for a stable VoLTE signal in the area of insecure reception, in such situations, the only way out is forced switching to standard voice calls.

In this article, we’ll take a look at all the ways you can disable VoLTE on Xiaomi, from standard settings to more sophisticated methods through an engineering menu, and learn why an operator can impose this service and how to take back control of your gadget’s settings.

Why you should disable VoLTE on Xiaomi smartphones

Voice over technology LTE It was designed to improve connectivity, but in practice, in some regions and with certain providers, it doesn't work well. 4G Intermittent, the phone will constantly try to hold the signal LTE For voice calls, which causes the battery to run fast, disabling the function shifts voice communication to more stable, albeit less fast, standards. 2G and 3G.

Another common problem is that you can't use the Internet and voice at the same time, and while VoLTE allows you to do that, in reality, when you call in, your Internet connection can break if you don't have the right network configuration, and for gamers or those who are waiting for important messages during a conversation, this is critical.

⚠️ Note: Before making changes to network settings, make sure your data plan supports standard voice calls. In rare cases, some virtual carriers may only have VoLTE, and disabling the feature will result in a complete loss of signal.

Also worth noting is the effect on body heating: Constantly searching for a fourth-generation network to transmit voice makes your smartphone modem work in enhanced mode. If you notice that the top of the device warms up during a conversation, it's a direct signal to action. Forced switching to 3G often solves the problem of overheating in low-signal areas.

💡

Disabling VoLTE helps save battery power and stabilize communication in areas of uncertain 4G reception, returning the ability to use the Internet while talking through 3G technologies.

Standard method of disconnecting through phone settings

The easiest and safest way to remove an HD or VoLTE icon is to use the standard MIUI or HyperOS interface. Smartphone manufacturers often hide this setting, but most models have it available to the user.

The path may vary slightly depending on the operating system version «SIM-So here you'll see a list of SIM cards installed, if there are two, and you'll pick one that has a connection problem and you'll find the "Use VoLTE" switch. If the switch is active, just turn it off.

In some cases, especially on global firmware versions, this switch may not be visible in the menu.This does not mean that the feature is locked forever.Company operators often hide this option so that users do not turn off VoLTE, as this unloads their old 2G/3G towers.If you do not find the switch, do not despair - there are alternative methods.

• 📱 Open the Phone app and dial ##86583## is a hidden command to unlock the operator menu.
• 📡 After entering the code, you should see a pop-up notification saying “VoLTE carrier check was” DISABLED».
• 🔄 Get back to the settings. SIM-Maps – there should be a missing switch.

If the code doesn't work, your version of MIUI may be blocking access to these commands, so try entering ##4636##, which opens the engineering test menu, but beware: changing the settings in this menu without understanding their purpose can lead to network loss.

Use of the Engineering Menu for Advanced Users

The engineering menu is a powerful diagnostic tool built into Qualcomm and MediaTek processors, and it's the way you can force your phone to stop using VoLTE, even if the operator hides that possibility. USSD-call-in.

For MediaTek-based devices (which is typical of many Redmi budget models), the code usually looks like ##3646633##. Once you enter, the Engineer Mode interface will open. You need to go to the Telephony tab, then select SIM1 (or the desired SIM card) and find the Network Setting section. Here, in Voice Mode or similar, you need to select a mode that does not support IMS or VoLTE.

⚠️ Attention: In the engineering menu, it is strongly recommended not to change the settings in which you are not sure.Resetting network settings or changing frequency ranges can cause the phone to stop seeing the SIM card.

Users of Qualcomm processors (Snapdragon series) are more fortunate – they often have access to the menu using the code # #4636##. In the menu that opens, select “Phone Information.” Scroll down to the “Set Preferred Network Type” section, and select an option that does not have the letters “IMS” or “LTE preferred” in the title for voice calls, such as “WCDMA” or “GSM only” (for a temporary test).

It's important to understand that after you reboot your smartphone, the engineering menu settings can reset, and that's normal behavior for the system, which syncs with the operator profile, and if you want to permanently shut down and the standard switch doesn't appear, you'll have to resort to more radical measures through ADB.

Disconnect VoLTE via ADB-computer-team

Debugging method USB (ADB) It's the most reliable way to change system settings that are hidden from the average user, USB-It's a way of making changes to the phone's settings database that persist even after you reboot.

First, you need to activate the developer mode on your smartphone, and then you need to quickly tap the build number seven times in the About Phone section. Then, in the Developer menu that appears, turn on USB Debugging. Connect the phone to your PC and install ADB drivers if they are not already installed.

adb shell settings put global volte_enabled 0

This command compulsorily sets the global VoLTE flag to a value of "0" (off). In some cases, you may need to execute a command for a specific SIM card using the prefix settings put global. After completing the command, you should reboot the device and check the result.

• 💻 Install the Tools platform on your computer (official package from Google).
• 🔌 Connect your smartphone and allow debugging in a pop-up If you did everything right, the VoLTE icon will disappear, and the phone will stop initiating voice calls through the phone. LTE. However, it is worth remembering that updating the firmware or resetting the settings to the factory will return the system parameters to the original state, and the procedure will have to be repeated. 📊 What is the way to disable VoLTE you used?Through standard settings:Through engineering menu:Through ADB-The choice of method depends on your technical training and device model. Each method has its advantages and risks. Below is a table that will help you determine the best solution to the problem. Method Complexity Risk Efficiency Phone settings Low No Medium (often hidden) USSD-Codes Average Low High Engineering Menu High Medium (network failure) High ADB-The safest method, of course, is to use a standard switch in settings, but it's been shown that telecom operators are very much in the way of preventing this. Unlock codes work on most devices, but may stop working after the update. MIUI. Use of the ADB It requires a PC, but it gives you the most stable result. If you're afraid of experimenting with code, you'd better limit yourself to the first two methods. Remember, the goal is not to harm the device, but to improve the comfort of using it. 💡Before use ADB or engineering menu, back up important contacts and settings to quickly restore the phone in case of a failure.Possible problems and their solution After disabling VoLTE, you may encounter a situation that the icon «HD» It's gone, but the Internet doesn't work when you call it, because the technology is so powerful. CSFB (The return to switching channels is not always configured correctly by the operator, in which case manual selection of the network type will help: try to switch to "Only" mode. 3G» Another common problem is the disappearance of the badge. 4G/LTE That means the phone's stuck in mode. 2G/3G and cannot return to the high-speed network after the call is complete. 10 seconds or reboot the device. Also check if the “Saving Traffic” mode is activated in the settings. ⚠️ Warning: If after all the manipulations, the phone stopped catching the network at all (no service appears), do not panic. Go to the engineering menu or settings and return the network type to automatic mode «LTE/WCDMA/GSM Sometimes users complain that people hear them worse after turning off VoLTE. This is expected, because the quality of codecs in networks. 2G and 3G yield HD-If the quality of the connection is critical and VoLTE is not working well, try changing carriers or contacting support to update your network profile (FAQ) Does the VoLTE shutdown affect mobile internet speed? No, it doesn't directly affect the Internet speed when you're on standby or when you're browsing pages. During an incoming or outgoing call, the phone will switch to 3G, where data transfer speeds are lower than in the network 4G. Do operators charge extra for VoLTE? In most cases, the service is free if it is included in your tariff. However, traffic spent during a call can be charged under special conditions, so it is worth checking with your provider. Can VoLTE be disabled for just one SIM card? Yes, in two-symbol Xiaomi smartphones, network settings for each SIM card are available. SIM-You can leave VoLTE on the work SIM and turn it off on the personal one where there are problems. Will the setup reset after the system update? If you disabled VoLTE through the standard settings or ADB-commands, probability of reset is high with major Android update. The engineering menu codes often have to be re-entered after each phone restart.