Why is call sound quality poor on my Galaxy phone?

Why is my Samsung Galaxy phone experiencing poor sound quality during calls?

Fix poor call audio quality on Samsung Galaxy devices caused by weak signal, SIM issues, software glitches, or hardware problems. Learn how to troubleshoot in-call noise, voice cuts, and clarity issues.

Poor sound quality during phone calls on your Samsung Galaxy device can result from weak network signals, SIM card issues, software bugs, or incorrect settings. Follow these steps to resolve in-call audio problems effectively.

1. Why does poor sound quality happen during calls?

In-call audio issues often stem from network-related or device-specific factors. Common causes include:

- Weak cellular signal in your location

- Damaged or improperly inserted SIM card

- Outdated software or app versions

- Incorrect call settings or audio routing

- Hardware issues like faulty microphones or speakers

2. How to check your network signal strength

1. Open the Phone app on your Samsung Galaxy device.
2. Dial *#0011# to access the Network Information menu.
3. Check the signal strength value displayed. A value of -90 dBm or higher indicates a strong signal, while values below -110 dBm suggest poor reception.

If the signal is weak, move to a different location or switch to a Wi-Fi calling-enabled network if supported by your carrier.

3. How to inspect your SIM card

1. Power off your Samsung Galaxy device.
2. Remove the SIM card tray using the provided eject tool.
3. Inspect the SIM card for physical damage, dirt, or misalignment.
4. Reinsert the SIM card securely into the tray and reinsert it into your device.
5. Power on your device and test the call quality.

If the issue persists, test your SIM card on another compatible device to confirm its functionality.

4. When should you restart your device?

A simple restart can resolve temporary software glitches affecting call quality. Restart your Samsung Galaxy device:

1. Press and hold the Power button.
2. Tap Restart.
3. Wait for your device to reboot completely.
4. Test the call quality again.

If the problem continues, proceed to the next troubleshooting step.

5. Additional things to check

Ensure your device meets the following criteria:

- Your device's software is up to date.

- The Phone app and related carrier apps are updated to their latest versions.

- Call settings are configured correctly (e.g., speakerphone, Bluetooth audio routing).

- No third-party apps are interfering with call functionality.

6. Supported Samsung Galaxy devices

This troubleshooting guide applies to most Samsung Galaxy devices, including:

- Galaxy S24, S25, S26 series

- Galaxy Z Fold and Z Flip series

- Galaxy A series devices

Related Samsung support topics

- How to update software on Samsung Galaxy devices

- How to enable Wi-Fi calling on Samsung Galaxy phones

- How to reset call settings on Samsung Galaxy devices