Different volume with 3 or 4 pin headphones?
As I write this , I have no way of testing it, as I do not have any Apple '4 ring' 3.5mm headphones.
I was asked yesterday to go and 'fix' a lack of audio problem on a friends iPhone.
She plays music via iPhone through a set of powered speakers and a 3 ring standard 3.5mm jack plug.
Built in iPhone speakers work
When a set of her own '4 ring' Apple headphones are connected, they work.
When the 3.5mm 3 ring extension for the powered speakers is connected, the music stops.
The speakers do still work, I tested with my identical iPhone 5
It HAD been working with the powered speakers for months, yesterday 'mid song' it stopped.....so she says. I suspect user error, finger trouble.
I just wondered if the iPhone had a different volume setting for 3 ring and 4 ring 3.5mm accessories, in the same way it has 'headphone ' and builf in mode.. Wondered if there was a third mode she has muted.
I can't test that at my home, (no 4 ring headphones). and it is a 25 mile round trip to hers to check this theory out.... And she is not savvy enough to do it herself. She really would be better off with a cassette tape.... or wax cylinders !
