MBP with EFI Problem does not boot

Hi everyone,

I have a huge problem with my computer.

After upgrading my iPhone to iOS 7.1 via iTunes i wanted to disconnect my iPhone from my Mac which produced a beachball. I have almost no beachball issues with my Mac since I upgraded to an SSD. After disconnecting the iPhone (beachball still spinning) my computer froze so I had to push the power button until it shut down immediately. After a restart it used it just minutes and it froze again and showed the beachball again. I shut it down with the long press on the power button again and did this several times, what made the problem even worse. After a few restarts I booted into recovery mode and tested the harddrive with disc utility which found a fail, but couldn't fix it (the fail was something with EFI and it sId it couldn't fix it because it can't work with this file format [filevault encrypted HFS+?]). After a restart my Mac didn't boot (and still doesn't) and just shows a blinking folder with question mark in it.

Because I have two USB-sticks with OS X on it (1 with lion and 1 with mavericks) I booted with them and tried to install a backup and even tried to install a new copy of OS X, but I doesn't find the SSD to install it on there. Just a recovery partition.

I have no idea how to fix this without another computer. Maybe I could delete the SSD with another computer, but is there a way to do this with my hardware?

My system:

13" MacBook Pro early 2011, Samsung SSD (840 Evo 500 GB), 8 GB RAM. The hole harddrive is encrypted via filevault 2.

OS: 10.9.2, backup (also encrypted) available.

I would be very thankful for every help and advice you may have.

Greetings,

Jonas