3.  During a call, check that the proximity sensor works by covering it to confirm that it turns off 
your screen, preventing accidental touches during calls. Y
ou can also download an app to 
automatically lock your screen during calls; search for ‘call screen lock’ on Play Store.
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.
People can't hear me on calls
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.  Check to see if your phone is using Voice privacy. (This feature is not available on all 
models.) Turn it off to see if sound quality improves:
1. 
Touch 
.
2. 
Touch   > 
Settings > Calls.
3.  Turn off Voice privacy.
3.  If the issue occurs while using the speakerphone or a Bluetooth headset, check your signal 
strength.
In the 
status bar, see how many bars your network connection has. If you see only one or 
two bars, change locations to improve your signal strength, particularly if you are indoors.
4.  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.
5.  Check if a software update is available for your phone.
6.  Turn off Voice Match.
1.  Open the Google app.
2.  Touch More > Settings > Voice > Voice Match.
3. 
Turn 
Access with Voice Match off 
.
Saying ‘OK, Google’ won't work from all screens but you can touch the search widget first, 
then say ‘OK, Google’.
7.  Use 
safe mode to see if apps that you have installed are causing the issue and uninstall as 
needed.
Fix a problem : Call and SIM issues 191