Galaxy Tab S 8.4 micro card problem.

Hello,
I'm having a problem with my micro card slot. I used to have a generic 64gb card and had saved many apps to it. Well I was using so much space I decided to get 128 gb samsung micro sdxc card when I first put it in everything looked normal, I formated it fine. However when I went to transfer my apps to the card, it said insufficient space. I unmounted it, and reinserted it, same thing. So I unformatted it and removed it. Now the tablet won't accept either card. It says calculating for a sec, and won't go any further. HELP!

Both cards work fine on my laptop.