Inaudible call volume after updating iPhone 8 to 12.2
I've used my iPhone for a couple of years without difficulty hearing those who call me. Within the last several weeks I've had difficulty hearing the caller if I don't switch the phone over to its external speaker. The external speaker works just fine. The internal speaker volume, even when the volume indicator is at maximum, is so low that I have difficulty hearing. I've researched this problem and it seems to exist in the last several generations of iPhones and in subsequent generations, as well. Although I can't be certain of the cause, the only change to my iPhone is the software update, so I deduce that the update caused the problem. The phone held to my ear and speaking to and hearing the caller is the main function of the device, even though it's a mini-computer. Obviously, I've researched the topic and tried the suggestions that are posted with other users who have experienced this problem. Is there a different or newer solution that works?
iPhone 8, iOS 12