iPhone 5 in-call volume too low.
Brand new iPhone 5. Volume very low during calls. My 4s was MUCH louder.
Yes, obviously I took off the plastic film off the screen and the headpiece.
Yes, obviously, there is nothing blocking the speaker.
Yes, off course I made sure that there is no dust in there or anyhting else. It's a brand new phone!
And yes, off course I raised the volume all the way up during a call.
Now with all that out of the way, what can be causing such bad in-call volume? Is there anything I can do short of exchanging for another phone?
Thanks very much.
iPhone 5, iOS 6.1.3