How To Fix WhatsApp Video Calls Not Working on Android and iPhone

When it comes to using WhatsApp for video calls, a lot of folks bump into issues just when they’re about to have that long chat or catch up with friends. Sometimes it’s just a minor glitch, or perhaps permissions got mixed up, and other times it’s a faulty app or network weirdness. The main goal here is to troubleshoot what’s going wrong without jumping straight into reinstalling everything. Usually, you can fix the problem with some basic checks: ensure your internet is stable, permissions are correct, and background data isn’t blocked. This guide covers common causes and reliable ways to get your WhatsApp video calls working again, whether you’re on Android or iPhone.

Many times, these issues boil down to simple settings hiccups or network hiccups that can be easily fixed. Honestly, a lot of times, just rebooting the device or updating the app clears things right up. But if not, there are some deeper tweaks like permissions, background data, or even cache clearing that might do the trick. The goal is to get smoother video calls without pulling your hair out, so let’s go through some of the most effective fixes that I’ve seen actually work in real-world setups.

How to Fix WhatsApp Video Calls Not Working

Check Your Internet Connection

First thing’s first—your internet connection has to be solid for video calls to go smoothly. If your Wi-Fi or mobile data is spotty, the call quality will suffer or might not connect at all. Use the internet speed tester website or app to see if your download and upload speeds are decent. If your connection’s trash, you probably won’t get consistent video, plain and simple. On some setups, the connection might look fine but still be laggy, especially on Wi-Fi with interference or weak signal. If your internet seems solid but calls still fail, move on to the next steps.

Restart the Device

It’s kind of weird, but restarting your phone can clear out stuck processes and refresh network settings that might be causing the problem. Sometimes, background apps hog resources or the network stack gets jammed. Doing a quick reboot can fix that—just hold down the power button, tap Restart, and wait for the device to fire back up. On some phones, a full power cycle fixes weird glitches that don’t respond to anything else. Just remember, this is the low-hanging fruit—most times it helps, especially if the bug appeared out of nowhere.

Check App Permissions for Camera and Microphone

Permissions are a big deal because WhatsApp won’t be able to access your camera or mic if they’re denied upfront. Sometimes during installation or updates, permissions get disabled. On Android, navigate to Settings > Apps > Manage Apps > WhatsApp > Permissions. Make sure Camera and Microphone are toggled on. On iPhone, open Settings > WhatsApp and enable Microphone and Camera. This is super common, especially if you’ve previously denied permissions accidentally or if the app updated and reset some toggles. Expect the call to connect after fixing permissions—sometimes, that alone is enough to fix the issue. In my experience, on some phones this step has fixed problems on the first try, but other times, you need to restart after changing permissions or toggle airplane mode for changes to kick in properly.

Enable Background Data and App Refresh

WhatsApp needs to run in the background to receive calls properly. If background data or app refresh is turned off, incoming calls might get missed or not ring. On Android, go to Settings > Connection & Sharing > Data Usage > WhatsApp and turn on Background Data. For iPhone, open Settings > WhatsApp and enable Background App Refresh. On some devices, if you have a custom battery or data saving mode enabled, this could block background activity and cause missed calls or failed connections. Enabling this is often overlooked but crucial for seamless WhatsApp calling.

Turn Off Data Saver Mode

Many users turn on Data Saver mode to stretch their mobile data, but it can squish app features, especially real-time ones like calls. If Data Saver mode is active, messaging and calling might be restricted in the background. For Android, head to Settings > Privacy > Special Permissions > Unrestricted Data. Find WhatsApp and toggle it off or on accordingly. On iPhone, go to Settings > Cellular > Cellular Data Options and disable Low Data Mode. Turning this off usually restores WhatsApp’s ability to handle real-time calls smoothly.

Disable Battery Saver Mode

Battery saver, or low power mode on iPhone, is designed to extend battery life but often at the cost of background activity. If this mode is enabled, WhatsApp may not be able to access camera or mic correctly or may delay notifications. On Android, go to Settings > Battery > Battery Saver and disable it temporarily. On iPhone, toggle Low Power Mode off via Settings > Battery. Give it a try—sometimes this sneaky setting is the culprit preventing calls from going through, especially after you’ve had the phone on low power for a while.

Clear Cache/Data for WhatsApp

On Android, clearing cache or data can fix corrupted temporary files. To do this, head to Settings > Apps > Manage Apps > WhatsApp. Tap Clear Cache first—this deletes temporary files that might be causing conflicts. If that doesn’t work, and you’ve backed up your chats, try Clear Data, but remember, this wipes everything inside WhatsApp, so backup first via WhatsApp backup instructions. On iPhone, you can’t clear cache directly but can try deleting and reinstalling the app, making sure to back up your chat history first.

Update or Reinstall WhatsApp

If all else fails, it’s worth checking if there’s a bug with your current version. WhatsApp updates fix bugs and improve performance, so keeping it fresh is a good idea. For Android, open Google Play Store, search for WhatsApp, and hit Update or Uninstall and then reinstall if needed. For iPhone, do the same via App Store. Remember to back up your chats before reinstalling, just in case. Sometimes, a fresh install clears out stubborn bugs that block video calling.

In some rare cases, the problem might be on WhatsApp’s servers themselves, especially if everyone you’re talking to also reports issues. If you notice widespread outages, just wait it out—the servers go down for maintenance or updates from time to time. Checking online status or social media updates from WhatsApp can give you a hint.

Fixing WhatsApp video call issues often involves a mix of these tweaks, and sometimes it’s just a matter of trying multiple things until one sticks. Usually, if you methodically rule out connectivity, permissions, background activity, and app bugs, you’ll get to the bottom of it. Just keep in mind that some issues are device-specific or network-specific, so what works on one setup might not immediately on another—hence needing a bit of trial and error.

Summary

• Check your internet connection speed and stability
• Restart your device to clear minor glitches
• Ensure Camera and Microphone permissions are granted
• Enable background data and app refresh for WhatsApp
• Turn off battery or data saver modes temporarily
• Clear cache on Android or reinstall WhatsApp if needed
• Update WhatsApp to the latest version

Wrap-up

Most of these fixes are straightforward enough, and with a bit of patience, video call problems can usually be sorted out. Sometimes it’s just about flicking a toggle or giving the app a fresh install. If issues persist even after trying everything, it might be worth reaching out to WhatsApp support or checking if their servers are down. Either way, these steps should get you back to catching up with friends without too much hassle. Fingers crossed this helps someone avoid the endless frustration.