Why Android on Xiaomi is blocking incoming call notifications – and how to fix it

Are you missing important calls on your Xiaomi because your smartphone doesn't show notifications of incoming calls? This problem is more common on devices with MIUI than on pure Android, and is related to both firmware features and power saving settings. In some cases, even third-party applications that conflict with system services are to blame.

In this article, we’ll break down 7 main reasons why Android is on Xiaomi (including Redmi models, POCO And Black Shark can block call notifications, from basic settings to hidden firmware bugs, and you'll learn how to diagnose a problem, which settings to check first, and what to do if standard methods don't work" MIUI, which are not found in other Android shells and are often a source of trouble.

1. MIUI energy saving: the main culprit behind missed calls

The most common reason is aggressive battery optimization in MIUI. By default, the system limits the background activity of applications, including telephony system services, to extend battery life, which causes call notifications to either be delayed or not arrive at all.

The problem is particularly acute on devices with MIUI 12/13/14, where power saving algorithms have become even stricter. Even if you manually added the Phone app to exceptions, this does not guarantee stable operation - Xiaomi can reset settings after updates or reboots.

• 🔋 Super Saving Battery: Blocks all background processes, including call processing.
• ⚡ Auto-optimization for applications: MIUI It can “freeze” telephony services if the smartphone has been lying without activity for a long time.
• 🔄 Resetting settings after update: MIUI Sometimes resets power saving exceptions when installing new versions.

⚠️ Warning: If you use Performance Mode in battery settings, this can make the problem worse.This mode not only doesn't help with notifications, but also increases the heating of the device.

2. Conflict with memory cleanup applications

The second most common source of problems is third-party RAM cleaner utilities like Clean Master, DU Speed Booster, or even the MIUI-built Safety → Cleanup tool, which often kill system processes, including com.android.phone, which handles calls.

Especially insidious are applications with the “Game Acceleration” feature (such as Game Turbo in POCO/Redmi), which can block notifications of calls during gaming sessions, even if you have not activated this mode manually, and after leaving the game, the telephony service may not automatically recover.

• 🧹 Autocleaning RAM: Kills Call Processes If They Are Hanging in Memory For Too Long.
• 🎮 Game mode: blocks all notifications, including calls, unless exceptions are configured.
• 🔍 Antiviruses with “optimization”: some (e.g. Avast) have cleaning modules that interfere with system services.

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Before removing third-party memory cleaners, check if they have an "Ignore System Applications" feature in the settings. Sometimes it's enough to turn off optimization for the telephony service.

Errors in notification settings for the Phone application

Sometimes the problem lies in the basic notification settings, which are divided into several levels in MIUI, and turning off even one setting can lead to the loss of alerts about calls.

• Incoming Call Notifications (responsible for the pop-up window)
• Sound signals (responsible for the ringing melody)
• Vibration (responsible for tactile recoil)

If any of these options are disabled, you can skip the call, and MIUI also has a hidden setting to Show notifications on the lock screen, which can be turned off by default for the Phone app.

Open Settings → Annexes → Phone. → Notifications|Check that "incoming calls" are included|Make sure the sound and vibration are not switched off|Check the display on the lock screen|Reboot your phone after the changes-->

4.Problems with SIM-card

If the call notifications are missing for only one person SIM-cards (on two-symbol Xiaomi), the problem may be related to the:

• 📶 Unstable signal network: with weak coverage, the smartphone may not have time to process the incoming call.
• 🔄 Wrong settings. APN: Errors in the configuration of the access point can affect the transmission of call signals.
• 🆔 Profile conflict USSD: If the operator recently updated the settings, they may have lost.

To test this hypothesis, try:

1. Insert SIM-card to another smartphone and check if calls are coming.
2. Reset network settings: Settings → SIM-maps and mobile networks → Resetting network settings.
3. Update the operator profile (usually through the USSD-Team, for example ##4636## → Phone information → Update profile).

⚠️ Note: Some Xiaomi models (e.g. Redmi Note 10 Pro) may lose access to the network after resetting LTE. In this case, you will have to add manually. APN Operator through the settings → SIM-map → [yours SIM] → Access points (APN).

5. firmware bugs and conflicts with updates

MIUI is known for its “raw” updates, which often introduce new bugs, for example, after the release of MIUI 14.0.3, many users of Xiaomi 12T and POCO F4 complained about the loss of notifications about calls.

• 🐛 Error in the service Telecom: the system process responsible for processing calls, could be dyed.
• 🔄 Conflict with Google Play Services: after updating Google services, sync settings sometimes get lost.
• 📱 Incompatible with the new Android kernel: if the firmware is built on the basis of the latest version of Android, but not optimized for iron.

To check if the firmware is to blame:

1. Check out reviews about your model on forums (like 4PDA or Xiaomi Community) if the problem is massive, it's likely a bug.
2. Try to roll back to the previous version of MIUI via Settings → About Phone → System Update → Three Points → Select an Service Pack.
3. If a rollback is not possible, install a patch from the community (such as MIUI EU or Xiaomi.eu), where bugs are often fixed faster than in official builds.

6. Conflict with Dual Apps or Second Space

Dual Apps and Second Space in MIUI may interfere with call processing if:

• 📱 You cloned the Phone or Contacts app".
• 🔄 Distribution of notifications between spaces is included.
• 🔒 One of the spaces is locked (for example, by fingerprint), and the call comes to the locked space.

To correct:

1. Remove the clone of the Phone app if you have one: Settings → Dual Apps.
2. Disable notification separation: Settings → Second Space → Notifications → Allow notifications from the main space.
3. Check if the space where the calls are coming is blocked.

7. Hardware problems: when iron is to blame

If all software methods have been tried, but call notifications still don’t come, the problem may be in the hardware:

• 📡 Faulty communication module: if the antenna or modem is damaged, the smartphone may not “catch” the call signal.
• 🔋 Worn-out battery: When the battery is under 15%, the system can turn off the telephony module to save energy.
• 🔌 Problems with SIM-tray: oxidation of contacts or loose fit of the card.

For diagnosis:

1. Check if it's being determined SIM-map in Settings → SIM-If the status is "No service", the problem may be in the communication module.
2. Try calling from the second slot (if any) if calls come only to one SIM, guilty SIM-cardboard.
3. Connect your phone to charge and check if calls come in when the battery is low, and if so, there's a battery problem.

⚠️ Note: If the smartphone falls or overheats during the call, this may indicate a malfunction of the communication module.In this case, self-repair is not recommended - contact the Xiaomi service center.

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Before visiting the service center, back up your data via Settings → About Phone → Backup. Hardware repairs may require a factory reset.

FAQ: Frequent questions about missing call notifications on Xiaomi