Argh - I messed up my memory card. Is it dead?

[powerflexer]

Hello guys. I wanted to remove magic lantern, and dumb as I were, I just removed all files from the sd-card. Now the camera (EOS 600D) won't start with the sd-card in it. It works with other sd-cards, but not this one. I tried formatting it from my PC (win7), both as FAT and FAT32 and with both quck and a slow (full) format.

Is the card dead? It's a sandisk card.

Please help Could i maybe restore the files i've deleted? (The magic lantern files from sd-card).

[nanomad]

Download eosCard and use it to re-install magiclantern on your card (format it as FAT32 first)