iPhone 7 Plus ear speaker eventually stops working after replacement.
So I had an iPhone 7 Plus come in for a screen replacement the other day. Customer tested the phone before he left, was able to make a call, use camera, etc. Came back in a couple of days later because he couldn't hear out of the ear speaker. In fact, when he made a call, he didn't even have the option of putting it on speaker phone as that was greyed out. He could however use it on blue tooth. So I ordered a replacement front camera, OEM. Replaced it, the phone was working well again. All components seemed to work. Customer came back in today, same thing had happened. Any suggestions?
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