Sd card dont function

[Man of steel ray 56]

How do i get to work

 

[tony bag o donuts]

Welcome to AC!
What exactly is your issue?
Have you tried formatting the card in the phone?
Is the card not compatible with the S3? For instance, I don't think a 256gb card works in the S3.

 

[B. Diddy]

Welcome to Android Central! Many more details are required for us to give you a useful answer.