VoLTE Technology (Voice over) LTE) promises clearer calls and quicker connection, but in practice, owners of Xiaomi, Redmi and other POCO Often faced with problems: connection breaks, inability to reach or hear the interlocutor. In some regions, operators still do not support this feature stably, and on budget models Xiaomi VoLTE can conflict with the work of two SIM-map.
If you notice that VoLTE calls have gotten worse, don't be quick to blame your smartphone, and 80 percent of the time, it's just shutting down the technology. In this article, weβll break down all possible ways to deactivate VoLTE on Xiaomi devices, including hidden methods through the engineering menu and settings. SIM-We will also find out in which cases, disabling VoLTE can worsen the quality of communication instead of improving, a nuance that is often overlooked even by experienced users.
What is VoLTE and why you want to turn it off
VoLTE (from Voice over) LTE) β voice-transmission technology 4G-Networks instead of traditional 2G/3G. Theoretically, it should be:
- π Instant communication (without delay) 1-2 seconds)
- π€ Clearer sound (broadband codec) HD Voice)
- πΆ The parallel operation of the Internet during a conversation
In fact, Xiaomi users are complaining about:
- β Call breaks when switching between towers
- π Lack of sound in the interlocutor (one-sided audibility)
- π΅ Inability to reach the first time
- π Unauthorized Incorporation After Updating MIUI
The reason is often the carrierβs unstable support for VoLTE in your area or the conflict with MIUI firmware. For example, on the Redmi Note 10 and POCO X3 Pro models, many experienced a bug after upgrading to MIUI 14 when VoLTE activated automatically despite manual shutdown.
Method 1: Disable VoLTE through standard settings
The easiest method is to use the built-in MIUI menu, which works on all modern Xiaomi smartphones (starting with MIUI 12):
- Open the Settings app (cog icon).
- Go to section. SIM-maps and mobile networks.
- Choose yours. SIM-card (if there are several).
- Slip on the network type or network settings item.
- Find the VoLTE option (can be called Improved Calls or Voice over LTE).
- Move the slider to the off position.
On some models (such as Xiaomi 12T or Redmi K50), the path may be slightly different:
Settings β Connections and Sharing β SIM- Cards β [Select SIM] β VoLTEβοΈ Verification of VoLTE shutdown
β οΈ Attention: On devices with MIUI Global (European firmware) VoLTE option may not be on the menu if the operator has not certified the model for this feature. β3 via engineering menu.
Method 2: Deactivation through the menu SIM-maps (hidden method)
If you donβt have VoLTE in your settings, but youβre sure the feature is active (the HD or VoLTE icon is visible in the status bar), try an alternative path:
- Open the Settings. β SIM-maps and mobile networks.
- Choose yours. SIM-map.
- Slip it by its name (for example, MTS or Beeline).
- In the menu that opens, find Network Type β 3G Only or 2G Only.
- Choose 3G Only (recommended) or 2G Only (if you want maximum stability).
This method forcibly disables VoLTE, as calls will go through old networks, minus the loss of mobile Internet speed (on 2G it is limited to 256 Kbps).
| Network mode | Is VoLTE active? | Internet speed | Call stability |
|---|---|---|---|
| 4G/3G/2G (auto) | β Yes. | β‘ Maximum | β Failures are possible |
| Only 4G. | β Yes. | β‘ Tall. | β Risk of cliffs |
| Only 3G. | β No. | π’ Up to 42 Mbps | β Stable. |
| Only 2G. | β No. | π Up to 256 kbps | β Very stable. |
π‘
If after changing the network mode, the VoLTE indicator still burns, restart the smartphone in flight mode (10 seconds), then turn it off. This will reset the modem settings cache.
Method 3: Engineering menu (for power users)
If standard methods fail, you can disable VoLTE via the Engineering Mode, a method that is suitable for Xiaomi models running Qualcomm Snapdragon processors (most of the brandβs devices).
Instructions:
- Open the Phone app.
- Enter the code ##4636##
- In the menu that opens, select Phone Information (or Phone Information).
- Scroll down to the Set preferred network type block.
- Select LTE only or WCDMA only (to completely disable VoLTE).
- Press Turn off radio (turn off the modem for 10 seconds to apply settings).
For devices on MediaTek (such as Redmi 9A or POCO C31), use the following code:
##36446337##β οΈ Warning: Don't change other options in the engineering menu unless you understand their purpose! Incorrect settings can cause network loss or modem overheating. For example, activating Band Selection without knowing your operator's supported frequencies will make your smartphone "deaf".
What to do if the engineering menu is not opened?
Method 4: Disconnecting through settings SIM-card
Sometimes VoLTE is activated at the level. SIM-It's a card, not a smartphone, and you can turn it off through the operator's personal account or USSD-Here are the instructions for popular Russian operators:
| Operator. | USSD-team | Personal office |
|---|---|---|
| MTS | *111*465# β Select "Disable VoLTE" | My MTS β Services β VoLTE |
| Beeline | *110*180# | My Beeline β Services β Voice Services β |
| MegaFon | *105*465# | Personal Account β Services β VoLTE |
| Tele2. | *155*1# β Item "Network settings" | My Tele2 β Services β Voice Services β |
After you execute a command or change the settings in your personal account, restart your smartphone - this will speed up the application of changes. Please note that on some tariffs (for example, "All for communication" from MegaFon), VoLTE can be turned on by default and not disabled via USSD. In this case, call the operator's support to request that you deactivate the function manually.
π‘
Disabling VoLTE via the operator is the most reliable way if the function is activated itself after resetting the smartphone settings.
Method 5: Complete reset of network settings (last resort)
If VoLTE persists after each shutdown, the problem may be a damaged modem cache, in which case the network reset will help:
- Open the Settings. β The phone.
- Tap 7 times on the item MIUI (unlocks the menu for developers).
- Return to the main settings menu and select Additional β Reset.
- Tap Reset Network Settings (not to be confused with a full reset!).
- Confirm the action and wait for the reboot.
After discharge:
- π VoLTE will be disabled by default.
- π± You will have to re-enter Wi-Fi passwords.
- π‘ You can reset the settings. APN (Internet access points).
β οΈ Attention: On devices with MIUI 13 and older, after a network reset, sometimes the VoLTE option disappears from the menu. It's not a bug, it's just deactivated at the system level. To return it (if necessary), upgrade to the latest version of the firmware.
What to do if VoLTE is not shut down in any way
If youβve tried all the methods, but VoLTE continues to activate, the problem may be:
- Smartphone firmware β on some versions of MIUI (especially beta firmware), VoLTE is forced to turn on. Solution: roll back to stable version via Settings β About Phone β System Update β Three Points β Select Service Pack.
- Operator policy: some operators (e.g. Yota or virtual operators like Tinkoff Mobile) activate VoLTE at the level of the operator. SIM-The solution: replace SIM on the new (in the operator's cabin).
- Hardware modem failure β if the smartphone falls or overheats, the modem may not work properly.Solution: contact Xiaomi service center for diagnosis.
The last option is to disable VoLTE through ADB (requires a PC and USB-debugging):
adb shell settings put global volte_vt_enabled 0
adb shell settings put global enhanced_4g_mode 0These commands force VoLTE to disable at the Android level. Once they are executed, restart your smartphone. Note: on some models (POCO F3, Xiaomi 11T), after updating MIUI, these settings may reset.