LOST SOUND ON IPHONE PHONE CALLS on my 5s
I lost about 90% of the sound on my incoming phone calls. Caller can hear me fine but I can hardly hear them. Any help would be appreciated. I tried most suggestion that were on the internet but none worked. Only had the phone about 14 months and it's like new but of course Apple can't help.
iPhone 5s, iOS 9.3.1