Typically, you have a flash controller chip on top (near the contacts), and memory chips below. If you want to get an idea of the probability and cost to recover your data, open up the card enclosure to see what's inside. If something like that's happened to your card, then carefully straightening (I tried this with mine and didn't have a high success rate) or removing the offending divider may let you access the card - otherwise, I suspect scottbb is right and the chip or an internal connection is broken. Since the divider turns out only to be attached to the body of the card at the leading and trailingĮdge of the contacts, that basically let it hinge at the trailing edge - so if it hit anything while being inserted, it would swing across over one of the neighbouring contacts and prevent the card reader connection from reaching the contact. They're pretty thin bits of plastic, and on my card, one of them had broken where the divider meets the leading edge of the card. I tracked the problem down to the plastic dividers between the contacts.
I have an SD card that wasn't being recognised by some devices. I think scottbb's answer is probably correct - but there's one other possibility that's worth checking, which might give similar symptoms.
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