weird issue with this phone. when using a case that goes round the edges and back but doesn't cover the front at all, if on a phone call and the phone is against your head, the person on the other end hears them self when they talk. i believe with the case on the phone struggles to figure out that the voice that comes through the ear speaker is background noise and not what's being said by the person holding the phone so sends it back through, but no idea why as the case doesn't cover anything on the front, and has a large gap for the charger so doesn't come close to covering that either.
the case:
https://www.amazon.co.uk/Spigen-Hybrid-CUSHION-Crystal-bumper-Ultra-Clear/dp/B016CBF3DE
any suggestions what we can do to fix?
i'm aware that when on loud speaker, if i cover the top speaker of my phone, this makes the person on the other end also hear them self. no idea why but it does. perhaps others can test this for me to see if this is just me or not. this isn't the issue as i never put the phone on loud speaker and then cover the top section, however the case issue is a problem as it makes it impossible to the person talking to me to speak as they get jammed hearing themselves 1 second later