1st, carrier in your profile means the network your phone is on.
2nd, a media card is what is used in cameras and mobile phones to store media: pics, vids docs etc
3rd you need a Micro SD card
4th you can get these almost anywhere
amazon, electronic shops, etc
"That's it then. Cancel the kitchen scraps for lepers and orphans, no more merciful beheadings... and call off Christmas."