Scandisk Extreme Pro 64gb Micro SD Read Only (Mac)

Memory Cards Mobile memory, professional cards and all other st
2

Hello, 

in that case the card seems to be defective and needs to be replaced. so i would suggest contacting sandisk for a replacement

here you can find the link for the replacment

http://kb.sandisk.com/app/rmaform/session/L3RpbWUvMTQ3NDI3NDQ5MC9zaWQvMWJGTEJfLW0%3D