Dass das FP eine SIM Karte kaputt macht hab ich noch nie gehört, aber umgekehrt kann es passieren, dass eine SIM bzw ein micro-SIM adapter den SIM-slot zerstören kann:
So I was trying to remove one of my SIM cards from the FP2. Turns out that it was a nanoSIM inside a microSIM adapter. It got a bit loose and took one of the pins with it. You can see it on the picture, the right SIM card slot is missing the rightmost pin. I managed to salvage it, but I don’t think there’s much I can do with it - it’s probably too tiny to be soldered back in place.
I’m thinking about buying another SIM card reader from eBay or something, and then soldering it above the broken …