Question: iPhone 6 plus
I just purchased a refurbished iPhone 6 plus from a reputable company.
I love it.
But....I can't find how to increase the incoming voice volume. I can't hear my caller unless I put it on speaker. Then I can hear them ok, but even with volume (on side buttons) turned up all the way, incoming voices do not hardly sound.
iPhone 6 Plus, iOS 11.2.6