Why is there no sound on Facebook videos on my iPhone?

Quick Summary

There are a few common reasons why Facebook videos may not have sound when viewed on an iPhone:

The iPhone’s ringer/silent switch is set to silent
The volume on the iPhone is turned down or muted

The video was uploaded without sound or has no audio track
The Facebook app’s audio settings are disabled
The iPhone has a technical issue like a software bug or hardware problem

The most likely culprits are the iPhone being muted or having a low volume, or the video not having any audio included. Trying some basic troubleshooting like adjusting the iPhone’s volume, updating the Facebook app, restarting the iPhone, and checking the video on another device can help isolate the cause.

Detailed Explanations and Troubleshooting

Here are more detailed explanations for the common reasons Facebook videos have no sound on the iPhone and how to troubleshoot each potential issue:

iPhone Ringer or Silent Switch Set to Silent/Mute

One of the first things to check is whether your iPhone’s ringer/silent switch on the side is enabled or disabled. If this switch is set to silent/mute, it will mute all sounds from your iPhone including Facebook videos. The switch has an orange colored indicator that shows when it is in silent/mute mode. Flip the switch back so the orange indicator is not showing to turn sounds back on.

You can also go into the Settings app -> Sounds & Haptics to check that the Ringer and Alerts volume is not set to 0% or muted. Make sure it is set to an audible level.

iPhone Volume Is Turned Down or Muted

Another obvious but sometimes overlooked reason is if the iPhone’s volume is set too low or muted. This mutes all sounds on the device including Facebook.

To check this, use the volume buttons on the side of the iPhone while a Facebook video is playing to ensure the volume slider is set to an audible level, and is not muted. The tiny speaker icon shows mute is enabled if crossed out.

You can also go into Settings -> Sounds & Haptics and make sure the volume sliders for Ringers and Alerts and Media are set to audible levels.

Video Has No Audio Track

Some Facebook videos have no sound because the original video file uploaded to Facebook did not contain any audio track. The video itself has no sound included in it.

You can check if this is the issue by trying to play the video on another device like a computer. If the video also has no sound on the other device, then it confirms the video has no audio track included. There is nothing you can do to get sound in this case other than reaching out to the video creator.

Facebook App Audio Settings Disabled

The Facebook app has its own audio and video settings that could be disabling sound.

To check them, go into the Facebook app Settings -> Media and Sounds. Make sure that the following options are enabled:

– Play Videos Automatically
– Play Videos with Sound
– Always Play HD When Using Cellular Data

Toggle these on if they are off to ensure videos will play with sound by default in the Facebook app.

iPhone Software Bug or Hardware Issue

In some cases, no sound on Facebook videos could be the result of a software glitch or hardware issue with your iPhone:

– Software bug – An iOS bug or Facebook app bug could be preventing videos from playing audio. Updating the device and app to the latest OS and app versions could fix software bugs.

– Speaker damage – Hardware damage to the iPhone’s speakers would cause no sound. You would likely notice the issue extends beyond just Facebook videos if speakers are damaged.

– Headphone jack issue – Faulty headphone jack or connected headphones/Bluetooth audio devices could cause sound to not come through the iPhone speakers. Try disconnecting any wired or wireless audio devices.

– Proximity sensor problem – The iPhone proximity sensor that disables sound during calls could be stuck and incorrectly muting sound. A restart could fix it.

If the issue only happens on Facebook, a software bug is more likely. But any hardware damage or malfunction will cause the no sound problem to extend to videos and audio from all apps.

Fixes and Solutions

Here are some troubleshooting steps to try to fix no sound on Facebook videos playing on your iPhone:

1. Adjust the iPhone ringer/silent switch to ensure it is not set to mute.

2. Use the iPhone volume buttons to raise the volume and ensure it is not muted.

3. Check Settings -> Sounds & Haptics to make sure volume sliders are set high enough for audible sound.

4. Play the Facebook video on another device to see if the source video has no audio track.

5. Go into the Facebook app’s Settings -> Media and Sounds and make sure video and audio options are enabled.

6. Update the Facebook app and iOS software to the latest versions in case bugs are causing the issues.

7. Restart the iPhone to reset any software glitches or hardware issues.

8. Try disconnecting any headphones, Bluetooth devices, or accessories plugged into the headphone jack.

9. Test audio and videos in other apps to see if issue is isolated only to Facebook.

10. Backup the iPhone and reset to factory settings if nothing else works to eliminate any persistent software bugs.

11. Have an Apple technician inspect the iPhone if hardware damage like speaker issues are suspected.

Following basic troubleshooting steps can usually resolve no sound problems for Facebook videos playing on iPhones. Check the iPhone’s mute switch, volume, any connected devices, the Facebook app settings, and update software. Hardware damage may require professional repair if simple resets and app updates do not fix the audio issues.

Preventing Facebook Video Sound Problems

Here are some tips to avoid running into no sound problems when watching Facebook videos on your iPhone:

– Always keep the iPhone ringer switch unmuted when wanting to hear audio.

– Check volume buttons and volume sliders before watching videos to make sure sound is turned up.

– Update iOS and the Facebook app regularly to have the latest bug fixes and optimizations.

– Don’t use any unsupported spare parts for repairs that could cause compatibility issues.

– Avoid getting moisture or debris in the iPhone’s speakers that could damage them.

– Only connect accessories and peripherals that are Apple authorized to prevent potential conflicts.

– Restart the iPhone and Facebook app periodically to clear out any temporary glitches.

– Monitor Facebook videos you upload to be sure they contain an audio track before posting.

– Delete and reinstall the Facebook app if it develops persistent bugs or glitches.

– Back up your data so you can comfortably reset or restore your iPhone to factory settings if needed.

Following these tips will minimize the chance of running into playback issues for Facebook videos. Quickly troubleshooting any problems when they arise will also help restore sound.

Why Facebook Video Sound Works on Some Devices But Not iPhone

If you are noticing the Facebook videos have sound when played on some devices like a computer but not your iPhone, it points to an issue specific to your iPhone device.

Some potential reasons the sound would work on other devices but not your iPhone:

– iPhone is muted – The iPhone’s mute switch is enabled or volume is too low. Other devices have sound since they aren’t muted.

– Facebook app issue – A bug or setting in the Facebook app for iOS is causing sound to fail. Other devices use a different app version.

– iOS issue – An issue with your version of iOS or configuration is preventing sound. Other devices use different operating systems that aren’t affected.

– Hardware problem – The iPhone has a hardware defect like speaker damage that results in no sound. Other devices don’t suffer from the hardware problem.

– Incompatible accessory – A headphone splitter or audio accessory plugged into the iPhone could be incompatible and causing issues. The accessory doesn’t impact sound on other devices.

Essentially the iPhone has a unique configuration in terms of hardware, software, settings, and connected devices that is leading to the sound issue. Tracking the problem down to iPhone-specific factors will be key to fixing it.

Conclusion

No sound when playing Facebook videos on the iPhone is often an annoyance that can be fixed with some simple troubleshooting. Checking that the iPhone isn’t muted, adjusting app settings, updating software, and restarting the device can all help restore sound.

Hardware defects will require more advanced repair. But iOS, Facebook app, and configuration issues are the most common causes that can be addressed yourself. Just be sure to systematically isolate the issue on your iPhone versus other devices to zero in on device-specific problems causing sound to fail.

Common Sound Issues on iPhone Facebook Videos
Issue	Possible Cause	Fixes
Muted sound	iPhone mute switch enabled Low iPhone volume Facebook app settings	Disable mute switch Adjust volume buttons Check Facebook app media settings
No audio track	Video uploaded with no sound	Add audio track before uploading video
Intermittent sound	iOS or Facebook app bug	Update iOS and Facebook app
No sound on videos	Speaker hardware damage	Get iPhone speakers repaired