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I can't make voice/video calls

My friend and I can't hear each other in calls

This Help article is for Android users. For iOS users, see this Help article.

LINE voice and video calls are made over an internet connection, so make sure the connection you're using is stable.

If a call has no sound or is broken up, it may be because:

• You're connected to a Wi-Fi network being used by many people.

Note:

- We recommend using a 3G or 4G network.

- If you use a 3G or 4G network, you will be charged for the data used during calls.

• The signal is weak.

• You're updating apps or uploading/downloading files while on a call.

• Some router settings are affecting your connection.

If you've checked everything above but are still experiencing issues, try the following troubleshooting tips, and have your friend do the same.

• Update LINE to the latest version here.

• Restart your device.

• Close all running apps.

• Delete any unnecessary apps and data on your device.

• Try using a stronger network connection.

• Turn your 3G, 4G, or Wi-Fi OFF and ON again.

• Check if you can access the internet using other apps without any issues.

• Turn your speaker and mic OFF and ON.

• Try adjusting the volume on your device.

If you're unable to resolve the issue with the troubleshooting tips above, try each of the suggestions below in the following order.

• Uncheck Enable Full HD voice call (if this option is available).

• Tap Audio call mode > Normal mode.

• Uncheck Use OpenSL.

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Issues with receiving calls and notifications

No video appears in a video call

I can't hear anything when I connect a Bluetooth device (Android OS version 12)

If your smartphone is running Android 12 and you connect a Bluetooth device, you may experience issues such as:

• Being unable to hear friends in LINE calls.

• Being unable to make voice/video calls.

You may be able to resolve these issues by changing your Bluetooth permission settings. To do so, try following the steps below.

Note: The names in your settings and the order of these steps may differ depending on your device.

1. Go to your device's Settings > Apps.

2. Tap LINE > Permissions.

3. Tap Nearby devices > Allow.

If changing your Bluetooth permission settings doesn't resolve the issue, try the troubleshooting tips below.

• Pair the Bluetooth device with your device again.

• Turn your device's Bluetooth setting off and then back on several times.

• Turn off any other Bluetooth devices connected to your device.

• Recharge the battery on your Bluetooth device.

Note:

- We cannot guarantee that Bluetooth devices (e.g. smartphone accessories, earphones) will function normally, as this is dependent on the performance of your smartphone.

- If none of the troubleshooting tips above resolve the issue, please contact the manufacturer of your smartphone or Bluetooth device directly for further assistance.