Help how do you install an sd card?musician's

[unknown1001]

So I just bought my Kyocera hydro and I'm using my old 8gb SD card from my old phone and it has a lot of music and pictures but when I put my SD card it says I have nothing on it but when I go to storage it says that the SD card has 4gb used up. How do I install it so I can see all my pictures and music?

 

[Hydra119]

I also have a Hydro phone that doesn't recognize an sdcard.