Ok, this is my first android phone. I am switching over from the 4s. I've had the S III for almost a week now so I'm trying to adjust. I bought a Samsung 32gb micro sd card off of Amazon. I assumed it would just be plug and play. I read that some sd cards are fake so I got the sd tools app to make sure it was legit. Every time I try to run a speed test it says error reading buffer. On the first page when you open sd tools app, at the top it says SAMSUNG-SGH-1747, which I thought was the phone, and it says total space 12.5 gigs. I also downloaded the App 2 SD app, and it says "The device does not have a real primary external storage, or the primary external storage is emulated. Bottom of the screen says Total: 12.05 GB Avail:11.55. So what do I do? Is the card bad? Is there a setting I'm missing?