Why can't I hear someone calls me?

[AC Question]

I have a LG Optimus G Pro just recently I haven't been able to hear when someone calls me unless I put them on speaker, but they can hear my perfectly. Is there anything I could do to fix this. I've tried turning it off, but nothing happened. Thanks for the help!

 

[srkmagnus]

Try clearing the cache of the device and see if that helps. If not it could be a hardware problem with the speaker.