The situation when a smartphone Huawei stops receiving incoming calls can cause panic, especially if you are waiting for an important conversation. The screen remains black, and the subscriber hears short beeps or an unavailable message. Most often, the problem lies not in hardware failure, but in erroneous software settings or accidental activation of blocking modes.
In this article we will analyze in detail all the possible reasons for the lack of incoming calls on devices with the shell EMUI i HarmonyOS. You'll learn where to look for hidden switches, how to check your SIM card status, and what system services might be blocking your connection. Restoring telephony functionality often takes only a few minutes if you know where exactly you need to look.
Checking basic communication settings and airplane mode
First of all, you need to make sure that the device is physically capable of receiving a cellular network signal. Sometimes users accidentally activate Airplane mode, which completely disables all radios. Check the top notification shade: the airplane icon should be grayed out. If it's lit, tap on it to turn it off.
Make sure yours SIM card determined by the system. Go to settings and check the slot status. If the card is not visible, try restarting your smartphone or reinstalling the SIM card in a different slot. On dual-SIM devices, it is important to check which card is assigned to receive voice calls by default.
Sometimes a simple reset of the network settings helps. This action will return your mobile data and call settings to factory defaults without deleting your personal files. Go to Settings → System and updates → Reset → Reset network settings. After this procedure, the phone will need to restart.
⚠️ Attention: Resetting network settings will delete saved Wi-Fi passwords and paired Bluetooth devices. You will have to connect to wireless networks again.
If the problem remains after resetting the network, try manually selecting a telecom operator in the "Mobile network" menu, turning off automatic selection.
Do not disturb mode and blocking notifications
One of the most A common cause of silence on the handset is the activated mode "Do not disturb" (Do Not Disturb). In this state, the phone can receive calls, but does not beep or vibrate, creating the illusion that the device is not working. You can check the status in the quick settings of the curtain or through the settings menu.
Go to the section Settings → Sounds and vibration → Do not disturb. Make sure the switch is off. If you need to leave the mode active but allow calls from loved ones, set up exceptions. The system allows you to skip calls from selected contacts or repeated calls from the same number within three minutes.
It is also worth checking the notification settings for the Phone application. If it has notifications turned off or the priority is set to Quiet, you may miss the call visually. Go to Settings → Applications → Applications → Phone → Notifications and make sure all sliders are active.
- 📵 Check the schedule of the Do Not Disturb mode, it may turn on automatically at night.
- 🔔 Make sure that the ringer volume is not turned down to zero using the adjustment buttons.
- 🚫 Check whether the blocking all incoming calls function is enabled in the mode settings.
Forwarding settings and blocking numbers
The call forwarding feature can be activated accidentally or intentionally, redirecting all incoming calls to another number or to voicemail. To check this, open the Phone application, tap on the three dots in the corner of the screen and select Settings → Call forwarding.
In this menu you will see four options: always, when busy, when not answering and when unavailable. If any of the items is active and a third-party number is specified, disable it. On some models Honor i Huawei this item may be called “Advanced settings.”
Another reason is that your number or all unknown numbers are blacklisted. Check your list of blocked contacts. Attackers or spam services can sometimes accidentally add you to their databases, but more often the user himself blocks important numbers in an effort to fight advertising.
Secret codes for checking forwarding
Enter the code ##002# in the dialer and press call. This command forcibly cancels all types of forwarding at the operator level, if the service is supported by the network.
Working with the Phone application and clearing the cache
The system application responsible for making calls may fail due to accumulated cache or an error in the contact database. If the dialing interface is slow or freezes when there is an incoming call, you need to clear the application data.
Go to Settings → Applications → Applications → Phone → Storage. Click the button “Clear cache”, and then "Reset" (or “Manage space” → “Clear all data”). Don't worry, your phone book will not be deleted, as it is stored in a separate Contacts application or in the cloud.
After clearing the data, the application will return to the “as after purchase” state. This often solves problems with identifying the number and displaying the call card. If you have a third-party calling application installed (for example, from Yandex or Truecaller), try temporarily disabling it and making the system dialer the main one.
| Action | Settings menu | Result |
|---|---|---|
| Clear cache | Applications → Phone → Storage | Deleting temporary files, speeding up work |
| Resetting data | Applications → Phone → Reset | Returning dialer settings to factory |
| Updating the application | AppGallery / Google Play | Installing error fixes by the developer |
| Checking rights | Applications → Phone → Rights | Allowing access to phone and contacts |
Clearing Phone application data is a safe procedure and does not delete call history or contacts if they are synchronized with your account.
Network preferences and network type selection
Modern smartphones Huawei support various communication standards: 2G, 3G, 4G and 5G. Sometimes a conflict in standards or a weak LTE signal causes the phone to hang in data mode and cannot switch to the voice channel. This is especially true in areas of poor reception.
Try to force change the network mode. Go to Settings → Mobile network → Network mode. If "5G/4G/3G/2G (auto)" is selected, try switching to "3G/2G Only" or "4G Only". This will help you understand whether the problem depends on a specific communication standard.
Also check the VoLTE (Voice over LTE) settings. If your operator supports this technology, calls are made over a 4G Internet channel, which improves quality. However, if the Internet is unstable, calls may be dropped. Try disabling VoLTE in the SIM card settings: Settings → Mobile network → SIM card → VoLTE.
⚠️ Attention: In some regions, operators have already disabled 2G and 3G networks. Switching to 2G/3G Only mode may result in complete loss of connection. Check the current standards with your provider.
Specific settings of the EMUI and HarmonyOS shell
Shells from Huawei have functions for optimizing work in the background, which can aggressively close telephony processes to save money charge. If the Phone app is unloaded, an incoming call may not go through. You need to add the application to the protected list.
Open the battery settings and find the item “Launch applications”. Find "Phone" and "Contacts" in the list. Make sure that the AutoPlay switch is enabled and background running and secondary startup are enabled. This ensures that the system does not “kill” the call waiting process.
Another feature is the “Smart Unlock” function or gestures. On some models, the Flip to Silent feature may not work properly when the phone is placed on an uneven surface. Disable this option in the menu Settings → Accessibility → Simplifying operations.
☑️ Diagnosis of problems with calls
What to do if nothing helps
If all software methods have been exhausted, and incoming calls still do not go through, the problem may be on the side of the telecom operator or the equipment itself. Call your operator's support service from another phone and ask to check the status of the line and the Incoming Calls service.
The card may have experienced a technical problem that requires re-registration in the network. The operator may send a special signal or offer to replace the SIM card with a new one, since old chips degrade over time and make worse contact with the smartphone reader.
In extreme cases, when there is a suspicion of a hardware malfunction of the antenna module, you will need to reset the entire smartphone to factory settings. Before doing this, be sure to back up your data via the cloud Huawei Cloud or to your computer.
Settings → System and updates → Reset → Reset your phoneRemember that a full reset will delete all photos, messages and installed applications. Use this method only when other options have failed.
Why do calls go through, but the screen does not light up?
Most likely, the problem is in the proximity sensor or screen settings. Check to see if there is a protective film on the top of the display that is blocking the sensor. Also go to your screen settings and make sure Raise to Wake or wake gestures are enabled.
How do I know if my number is blocked by my operator?
Try inserting your SIM card into another phone. If calls don’t arrive there either, then the problem is on the operator’s side or the card itself. If everything works on another phone, then there is a problem in the settings of your Huawei smartphone.
Can a virus block incoming calls?
Yes, malware can intercept control of the phone or redirect calls. Scan your device with the built-in Phone Manager antivirus or a third-party solution. Remove recently installed suspicious applications.
Does full memory affect receiving calls?
A critical lack of free memory (less than 100 MB) can lead to unstable operation of system processes, including the phone. Free up space by deleting cache or unnecessary files so that the system works correctly.