What to do when calls disconnect or there’s no network signal on your Galaxy device

Last Update date : Apr 28. 2026

If your calls disconnect or your Galaxy device has no network signal, the issue may be related to device settings or your carrier. Follow the steps below to troubleshoot the problem.

Check your device settings

 

Turn off Airplane mode

 

1. Open Settings and tap Connections.

2. If Airplane mode is enabled, turn it off and check your signal.

turn off the airplane mode

 

Check if unknown or private numbers are blocked

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1. Open the Phone app and tap More (three dots).

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2. Tap Settings.

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3. Tap Block numbers.

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4. Turn off Block unknown/private numbers.

You may need to reset your network settings if your calls disconnect, or your device keeps losing network signal.

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1. Open Settings and tap General management.

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2. Tap Reset.

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3. Tap Reset network settings.

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4. Review the information and tap Reset settings.

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5. Tap Reset.

Note:

  • This will reset Wi-Fi, Bluetooth, and mobile network settings.
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1. Open Settings and tap Connections.

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2. Tap Mobile networks.

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3. Tap Access Point Names.

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4. Tap More (three dots) and select Reset to default.

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5. Tap Reset.

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1. Open Settings and tap Connections.

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2. Tap Mobile networks.

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3. Tap Select roaming network.

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4. Turn off Select automatically and choose your carrier.

Notes

  • Network issues may be caused by carrier coverage or service interruptions.
  • Resetting network settings will remove saved Wi-Fi networks and Bluetooth connections.
  • Device menus may vary depending on model and software version.

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