8. Reset
the phone.
Poor sound quality on calls
Start by checking your volume setting. You can only adjust the call volume with the volume
buttons while you're on a call.
Wired headset
1. Make sure the headset is inserted completely into the headset jack.
2. If you are using a case or cover, remove it and re-insert the headset to see if it was
interfering.
3. Try a different headset to determine if the issue is with the original headset.
Earpiece
1. Check that nothing is covering the microphone:
• If you are using a case, cover or screen protector, remove it and see if it was causing
the issue.
• Check that the protective film that was shipped with the phone has been removed.
2. While in a call, try using the speakerphone or a wired headset to see if the sound quality
improves. If it doesn't, the issue is probably network signal strength instead of hardware.
3. Turn your phone off and then on again.
Press and hold the Power button, then touch Power off. Then turn it on to establish a new
connection with the network.
4. Use safe mode to see if apps that you have installed are causing the issue and uninstall as
needed.
5. Check if a software update is available for your phone.
6. Reset the phone.
Bluetooth device
Check the battery level of the Bluetooth device and phone and charge if necessary. Bluetooth
devices may disconnect or create noise when the phone or Bluetooth battery are low.
Can't make/receive calls
Try these troubleshooting steps.
Fix a problem : Call and SIM issues 192
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