I took a chance and bought a second J3 (first one bricked and never recovered) because I wanted to take more time to explore the EQ options.
Unfortunately, the second one has a defective battery!
I've charged it three times, and it can't last longer than eight hours. When it
is working, it has a split personality. The simple act of disconnecting it causes half my covers to change and be attributed to the wrong album. I'm using it in MTP mode. MSC mode (for some reason) put the tracks out of order if there were more than nine in a folder. So Track 10 would be seen as Track 1, Track 11 would be 2 - and Tracks 1 and 2 would be 3 and 4, and so on. But now it's doing it in MTP mode too, that's when it's not blank-screening me for no reason!
P.S I forgot how much I disliked the placement of the volume control. I use it in the palm of my hand, so my thumb is at the top right hand side, and it doesn't feel at all intuitive to slide it right down to the bottom to access the button.
P.P.S I forgot how pretty the screen was