iPhone 5S Audio quality
Hi
I've recently got hold of a refurbished iPhone 5S 32GB, running iOS 12.5.1.
It's in good shape and everything seems to be working fine, except the audio coming out of the 3.5mm headphone jack sounds awful! Vocals sound distant and are barely audible, and have a weird echo-y and muffled effect.
I've tried 3 different sets of wired headphones, which I know sound great when connected to my PC. But when listening to music on the iPhone, something is definitely wrong.
EQ is off, and I've tried both my iTunes purchased music and YouTube in the Safari browser, I get the same problem with both.
The weird thing is I've tried it with Bluetooth headphones and they sound fine, so I'm not sure what's going on with the headphone jack.
iPhone 5s