any ideas - apart from resetting - which hasnt worked - I can make calls but no one can hear me .. and I can receive calls but no one can hear me !
Try disconnecting the headphones and then adjusting the volume, does it say headphones?
There might be something in the headphone jack, maybe lint, dirt, or something else in there.
Take a look at this Apple document for more information -> iPhone: Can't hear through the receiver or speakers
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