Why do calls disconnect or lose signal on my Galaxy phone?

1. Why is my Samsung Galaxy not connecting to the network?

Call disconnections or lack of network signal often occur due to incorrect device settings, outdated software, or carrier-specific configurations. Common causes include:

- Airplane mode being accidentally enabled

- Outdated software versions affecting network compatibility

- Incorrect APN (Access Point Name) settings

- Carrier selection mismatches or roaming restrictions

- Network interference from nearby devices or environmental factors

2. How to update your Samsung Galaxy software

Ensure your device runs the latest software version to avoid known bugs affecting network performance. Follow these steps:

1. Open Settings on your Samsung Galaxy device.
2. Scroll down and select Software update.
3. Tap Download and install to check for updates.
4. Follow the on-screen prompts to complete the installation.

Note: Software updates may resolve network-related issues introduced in older firmware versions.

3. How to check your Samsung Galaxy device settings

Device settings can unintentionally block network connectivity. Verify the following:

3.1. Turn off Airplane mode

Airplane mode disables all wireless communications, including cellular networks. To disable it:

1. Open Settings on your Samsung Galaxy device.
2. Go to Connections or Network settings.
3. Find Airplane mode and toggle it off.
4. Wait a few seconds and check if the network signal returns.

3.2. Check call blocking settings

Blocking unknown or private numbers may prevent incoming calls. Adjust these settings:

1. Open the Phone app on your Samsung Galaxy device.
2. Tap the three-dot menu in the top-right corner.
3. Select Settings or Call settings.
4. Look for Blocked calls or Call rejection options.
5. Ensure that blocking for unknown or private numbers is disabled.

4. How to reset network settings on Samsung Galaxy

Resetting network settings can resolve persistent connectivity issues. Note that this action will erase saved Wi-Fi networks, Bluetooth pairings, and APN configurations.

1. Open Settings on your Samsung Galaxy device.
2. Go to General management or System settings.
3. Select Reset settings.
4. Tap Reset network settings.
5. Confirm the action when prompted.

5. How to configure APN settings on Samsung Galaxy

Incorrect APN settings can disrupt network connectivity. Reconfigure them using your carrier's recommended values:

1. Open Settings on your Samsung Galaxy device.
2. Go to Connections or Network settings.
3. Select Mobile networks or Cellular networks.
4. Tap Access Point Names (APN).
5. Choose your carrier from the list or add a new APN profile manually.
6. Enter the correct APN details provided by your carrier.
7. Save the changes and restart your device.

6. How to select your carrier on Samsung Galaxy

If your device connects to an unintended carrier, switch to your subscribed network:

1. Open Settings on your Samsung Galaxy device.
2. Go to Connections or Network settings.
3. Select Mobile networks or Cellular networks.
4. Tap Network operators or SIM card settings.
5. Choose your carrier from the available options.
6. Restart your device to apply the changes.

7. Additional things to check

If the issue persists, consider these additional troubleshooting steps:

- Ensure your SIM card is properly inserted and undamaged.

- Test your device in a different location to rule out signal interference.

- Contact your carrier to verify account status and service coverage.

- Perform a soft reset by removing the battery (if removable) or restarting the device.

Supported Samsung Galaxy devices

This guide applies to most Samsung Galaxy devices, including:

Galaxy S24, Galaxy S25, Galaxy S26, Galaxy Z Fold, Galaxy Z Flip, Galaxy A series

Related Samsung support topics

- How to update software on Samsung Galaxy devices

- How to reset network settings on Samsung Galaxy phones

- How to configure APN settings for your carrier