Why video call in WhatsApp does not work on Android: a complete analysis of the reasons and solutions

Video calls on WhatsApp have long become a common way of communication, but sometimes they refuse to work on Androiddevices. The problem can manifest itself in different ways: the call does not connect, the screen remains black, the sound disappears, or the application crashes completely. The reasons range from trivial ones - for example, a disconnected microphone - to complex technical failures.

In this article we will analyze all possible reasonswhy video calling in WhatsApp does not work on Androidand will give step-by-step guide how to eliminate them. From checking permissions to diagnosing network settings, you will find a solution even for non-obvious cases.

If you have already tried to restart your phone and reinstall the application, but the problem remains, do not rush to blame the developers. In 80% of cases, problems are related to device or network settings. Let's start with the simplest and gradually move on to deeper diagnostics.

1. Checking basic WhatsApp permissions and settings

The first thing you need to do is make sure that WhatsApp has access to the camera, microphone and network. On Android these permissions may be reset after updates or crashes.

Open Settings → Applications → WhatsApp → Permissions and check that they are enabled:

• 📷 Camera - without it video call is not possible.
• 🎤 Microphone —otherwise the interlocutor will not hear you.
• 📡 Storage —needed for cache and temporary files.
• 🔗 Phone (for some versions) - to identify the device.

If permissions are enabled, but the problem remains, try reset them and issue again. Sometimes system glitches block access even with active checkboxes.

Attention! On Android 13+ a division of permissions has appeared into “Only during use” and “Always”. For WhatsApp select "Always", otherwise when switching between applications during a call, access to the camera may be interrupted.

2. Problems with Internet connection

Video calls require a stable Internet connection. Even if you have a connection, WhatsApp may not work due to:

• 📶 Weak Wi-Fi/mobile network signal - check the speed on speedtest.net.
• 🔒 Traffic blocking operator - some tariffs limit VoIP.
• 🛡️ VPN or firewall —they can filter data packets.
• 📵 Traffic saving modes —disable it in the network settings.

To diagnose the problem:

1. Switch from Wi-Fi to mobile data (or vice versa).
2. Disable VPNif it is active.
3. Try calling through another network (for example, connect to another point Wi-Fi).

If the call works after changing the network, the problem is in your main connection. Contact your provider or check your router.

Symptom	Possible cause	Solution
The call connects, but the video freezes	Low Internet speed	Switch to another network or reduce the video quality in the WhatsApp settings
There is sound, but no image	Blocking the camera or codecs	Check permissions and reinstall the application
The call is immediately dropped	Blocking by the operator or firewall	Disable the VPN/firewall or contact the operator

3. Problems with the camera or microphone

If WhatsApp does not see the camera or microphone, the problem may be:

• 🔧 Hardware failure - check camera in another application (for example, in the standard "Camera").
• 🤖 Conflict with others applications —some apps (for example, Zoom or Skype) can block access.
• 🔄 Incompatibilities with firmware —custom ROMs (for example, LineageOS) may lack drivers.

To check the hardware:

1. Open the standard application Camera and take a photo.
2. Record a voice memo via Dictaphone.
3. If the camera/microphone does not work there too, the problem is in the hardware part of the device.

Attention! On some models Xiaomi, OPPO i Vivo there is a “Second Space” or “Private Mode” function that can block access to the camera for certain applications. Check your security settings!

Check the camera in the standard application|Record sound through a voice recorder|Disable other applications that use the camera|Check the "Private Mode" settings (for Xiaomi/OPPO)-->

4. Conflicts with other applications

Some apps may interfere with the operation of WhatsApp:

• 🛡️ Antiviruses (for example, Avast, Kaspersky) - block access to the network.
• 🔄 Memory optimizers (for example, Clean Master) - kill background processes.
• 📱 Launchers (for example, Nova Launcher) - can limit the rights of system applications.
• 🎮 Game accelerators (for example, Game Turbo on Xiaomi) - disable background tasks.

Solution:

1. Temporarily remove suspicious ones applications.
2. Add WhatsApp to the antivirus/optimizer exceptions.
3. Disable "Battery Saver" for WhatsApp in the battery settings.

On Samsung check the menu Settings → Device care → Battery → Background restrictions — WhatsApp must be in the allowed list.

How to check which application is blocking WhatsApp?

Install App Inspector from Google Play. Run it while trying to make a video call - the app will show which processes are actively using the camera/microphone or blocking the network.

5. An outdated version of WhatsApp or Android

WhatsApp regularly updates video communication protocols. If you have an older version of the application or firmware, calls may not work. Minimum requirements for 2026:

• 📱 Android 6.0+ (for full support of WebRTC).
• 🔄 WhatsApp 2.23.12+ (older versions do not have optimization for new codecs).

How to update:

1. Open Google Play → find WhatsApp → click Update.
2. If there are no updates, download the APK from the official website whatsapp.com/android.
3. To update Android go in Settings → System → Software update.

⚠️ Attention! On devices with Android 5.1 and lower video calls in WhatsApp are not officially supported. If you have such a device, consider alternatives like Telegram or Skype.

6. Blocking by operator or regional restrictions

In some countries or on certain tariffs, operators block VoIP traffic (including video calls). This is relevant for:

• 🌍 UAE, Saudi Arabia, China - there WhatsApp is limited at the provider level.
• 📱 Corporate tariffs - some companies block messengers.
• 💳 Budget tariffs —operators save traffic by limiting video.

How to bypass blocking:

1. Use VPN (for example, ProtonVPN or Windscribe).
2. Try to call via Wi-Fi (if the blocking is only on a mobile network).
3. Contact your operator and find out if it is supported. VoIP on your tariff.

⚠️ Attention! In some countries, using VPN to bypass messenger blocking may be illegal. Check local laws before use.

7. WhatsApp server failures or account problems. data-i="194">Sometimes the problem is not in your phone, but on the other side

Sometimes the problem is not in your phone, but on the other side WhatsApp:

• 🔌 Server crash - check the status on downdetector.com.
• 🔒 Account blocking - if you violated the community rules.
• 🔄 Synchronizing contacts —if the contact has not been updated for a long time, the call may not go through.

What to do:

1. Check whether calls are working for your friends (ask in another messenger).
2. Update your contacts in WhatsApp: Settings → Chat → Backup.
3. If the account is blocked, contact support via Settings → Help.

If servers WhatsApp really don’t work, you just have to wait. Usually the problems are solved within a few hours.

8. Hardware limitations or damage to the phone

If none of the above helped, the problem may be in the hardware:

• 🔌 Damaged camera cable - a common problem after falls.
• 🔋 Worn out battery —at low charge (<15%) Android disables energy-intensive functions.
• 📱 CPU overheating —at temperatures >60°C the system limits performance.

How to check:

1. Connect the phone to the charger and try to call (if the problem is in the battery, the call will work).
2. Install AIDA64 and check the processor temperature during a call.
3. If the camera does not work even in other applications, take the phone to the service.

Attention! On some budget smartphones (for example, Redmi 5A or Samsung Galaxy J2), video calls may not be supported due to a weak processor. Check the specifications of your model at gsmarena.com.

FAQ: Frequently asked questions about video calls on WhatsApp

🔍 Why do I have a black screen during a video call, but there is sound?

This is a typical problem with access to the camera. Check:

1. Permissions for WhatsApp in the settings Android.
2. The performance of the camera in other applications.
3. Availability of updates for WhatsApp and firmware.

If the camera works in other applications, but not in WhatsApp —reinstall the messenger.

📵 Why does the video call immediately reset after connecting?

The reasons may be different:

• Blocking firewall/antivirus.
• Unstable Internet connection (try switching to another network).
• Conflict with another application using the camera/microphone.

Start by checking the Internet and disabling VPN/antivirus.

🔄 How to reduce traffic consumption during video calls?

There is no built-in video quality setting, but you can: WhatsApp There's no built-in video quality setting, but you can:

1. Turn off mobile data for WhatsApp and use only Wi-Fi.
2. Enable traffic saving mode in settings Android.
3. Use alternative messengers with bitrate settings (for example, Telegram).

📱 Why do video calls work worse on the new phone than on the old one?

Possible reasons:

• Aggressive battery optimization on the new device (check the settings).
• More strict permissions in the new version Android.
• Conflict with pre-installed applications (for example, Game Space on Xiaomi).

Try resetting the network settings or rolling back WhatsApp to the previous version.

🔒 Is it possible to record video calls in WhatsApp?

Officially - no, WhatsApp does not provide such a function. Unofficial methods:

• Use third-party applications to record the screen (for example, AZ Screen Recorder).
• Connect your phone to a PC and record the screen via OBS Studio.

Attention! Call recording without the consent of the interlocutor may violate privacy laws in your country.