Sudden trouble with M3DS Real

Earlier today, my flash card was running just fine. Then I decided to put my MicroSD on my laptop to put some games on it (where as normally I put it in my computer), and now all of a sudden any time I try to run my M3DS Real on my DS, the system doesn't think there's a DS card in there. I've tried reformatting my MicroSD, I've updated the software; nothing works.Am I screwed? :|

This happens occasionally with my R4. Just blow on your MicroSD, and M3Real MicroSD slot. And then the Slot 1 on your DS. And just keep trying. And make sure to put the MicroSD in your Real carefully, same thing goes when loading it in your DS.

...oh ffs.It's seriously never done that before; I didn't think... I'm so sorry. =_=;;