Modern smartphones like the Poco X3 NFC or Poco X3 Pro offer a wide range of technologies to improve communication quality, one of which is Voice over LTE, which allows voice calls over fourth-generation networks, which provide cleaner sound and faster connectivity, but in some cases users are faced with the need to deactivate this option.
The reasons can range from compatibility issues with a particular carrier to the desire to save battery power in areas of uncertain reception. Disabling VoLTE on Xiaomi devices often requires performing non-standard actions, since manufacturers hide this setting in the depths of the system menu.
In this article, we will discuss all available ways to manage the function. HD-You'll learn how to hide a status bar icon, completely disable voice transmission through the 4G What risks may arise from interference with the radio module.
Why you should turn off VoLTE on the Poco X3
VoLTE (Voice over LTE) is designed to improve communication quality, but it doesn’t always work properly in real-world conditions. Owners of the Xiaomi Poco X3 sometimes notice that once this option is turned on, the phone starts to discharge faster or loses signal in buildings with thick walls.
The main problem is that not all carriers provide stable support for the technology in every region. If the base station is not working correctly, the smartphone can constantly switch between 3G and 4G modes, which leads to call breaks. Forced shutdown of VoLTE forces the device to use standard 2G/3G protocols for voice, which is often more stable.
Also worth noting is the impact on autonomy: Constant monitoring of LTE networks for voice calls requires additional CPU and modem resources, and if you don’t care about HD audio quality, you’d better sacrifice this feature for longer device life.
⚠️ Note: Before making changes to your network settings, make sure your carrier maintains alternative communication standards, otherwise you may be temporarily unable to make calls.
In addition, some users prefer to hide the HD icon in the status bar for aesthetic reasons: in the MIUI or HyperOS interface, this indicator can take up extra space and distract from viewing notifications.
Verification of operator support
Before you go to complex settings, you need to make sure that your plan and SIM-The card is generally supportive of the technology, and not all Big Four operators automatically activate the service for all subscribers.
Special services are often required USSD-without active service from the provider, any manipulation in the menu of the Poco smartphone X3 Check the relevance of the service through your operator's application.
Below is a table with examples of commands to check the status of the service from popular operators (teams can change, the relevance is better checked on official sites):
| Operator. | Check-in team | Activation command | Default status |
|---|---|---|---|
| MTS | *111*311# | *111*310# | Connected. |
| MegaFon | *155*0021# | *155*0050# | Connected. |
| Beeline | *110*1821# | *110*1820# | Disconnected. |
| Tele2 | *155*605# | *155*606# | Connected. |
If an error message comes after entering commands or the service is not activated, it is possible that your SIM-This is a card that's too old, and you'll need to replace the SIM in the salon with a new one that supports it. 4G.
It is also important that the network type is selected in the phone settings in the Mobile Network section. 4G (LTE). Without this point, switching to high-speed voice channels is impossible.
Hidden settings through the engineering menu
The most effective way to manage the hidden functions of the radio module is to use the engineering menu, which is closed on Xiaomi smartphones, but can be opened using a special application or third-party utilities.
Standard way through dial ##4636## on modern firmware versions MIUI It blocks the entry to the test menu for regular users. APK-Activity Launcher or a specialized application for the engineering menu.
After installing the utility, the algorithm of actions will be as follows:
- 📱 Run the installed application and find it in the list of “Testing” or “Phone Information».
- 🔍 In the menu that opens, scroll down to the “Set Preferred Network Type” section».
- 📶 Select a mode that does not have a prefix. LTE, for example, WCDMA preferred or GSM only to check the network without 4G.
- 🔄 To return to normal mode, select NR/LTE/GSM/WCDMA.
⚠️ Warning: Changing the settings in the engineering menu can cause the network to disappear completely. If the signal is lost after changing the settings, just restart the device or return the original values.
This is where you find the VoLTE Provisioned switch. If it's active (the tick is standing), the phone will try to use VoLTE even if the icon is hidden.
What to do if the menu does not open?
Use of Activity Launcher App
Activity Launcher is a secure tool that allows you to run hidden Android activity.It does not require root rights and is available in the official Google Play store.
Once the application is installed and running, you have to wait until all the installed programs are scanned, which can take some time, as the system analyzes hundreds of hidden processes.
We follow the instructions:
- 🔎 In the search bar at the top, type the word “VoLTE” or «IMS».
- 📞 Find the item related to «IMS Service or Carrier Config».
- ⚙️ When you enter the menu, you will see a list of switches associated with the operator configuration.
- ❌ Find the line “Enable VoLTE” or “VoLTE Flag” and turn the switch to the position “Off».
This method allows you to fine-tune the behavior of the phone without deep interference with the system, but the interface may differ depending on the version of Android and the shell of MIUI.
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If you can’t find the item you want, try searching inside the Activity Launcher app itself for “carrier,” which often leads to a hidden operator settings menu.
It's important to understand that when you update your firmware, you may reset, so you'll have to do it again, and you'll have to save screenshots of the original values, so you can quickly get it back to where it was if you need it.
Remove the VoLTE icon from the status bar
Often, users don’t have to turn off the technology so much as simply hide an annoying “HD” or “VoLTE” icon at the top of the screen. On Poco X3 smartphones, this can be done through standard settings without resorting to engineering menus.
To do this, go to Settings, select Notifications and status bar. Find the section that displays indicators. There may be a "Show VoLTE icon" switch.
If there is no standard switch, you can use the SetEdit app (requires caution) or command via ADB. But the easiest way is to use the engineer's codes if they are active:
##86583##Entering this combination on some firmware versions hides the VoLTE icon. Re-entering returns it back. The message "VoLTE carrier check was disabled" confirms the successful execution of the command.
It's worth noting that hiding the icon doesn't mean turning off the function itself. Calls will still pass through the LTE network if it's configured by the operator. It's just a cosmetic interface change.
Possible problems and solutions
Xiaomi Poco X3 users may face a number of challenges during the setup process, the most common being the lack of networking after changing the settings. If the phone says "Emergency Calls Only", check if the "GSM Only" mode is selected in the engineering menu.
Another problem is that you can't call when you have 4G enabled if VoLTE is forced to shut down, in which case the phone has to automatically switch to 3G to make a call, and if that doesn't happen, you may not be able to switch to lower standards in your mobile network settings.
- 📉 Unstable Internet: Frequent switching between 3G and 4G Data transfer speed may fall.
- 🔋 Battery Discharge: Network Search in “Only” mode 3G» cover-zone 4G It can consume more energy.
- 📞 Sound quality: without VoLTE, sound will be normal, telephone, no broadband audio HD Voice.
If you are confused in settings, you can always reset the network settings, which will return all modem parameters to factory values without deleting personal data (photos, contacts).
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Network resets are a secure operation that often solves communication problems better than manually picking up on engineering menus.
To reset, go to Settings → About Phone → Settings Reset → Reset your Wi-Fi, mobile networks and Bluetooth settings. Once rebooted, the phone will re-register on the default network.