I am kinda confused what you mean by black blob, but anyhow a SD card cannot do this to a camera as long as the camera supports the memory card. I feel there is a little more to it then this. The lcd will need to be repaired this will need to be taken to a camera shop to repair this with a new lcd around $50 bucks respectivly. I find it hard to understand this ether as this should not have happend. the memory card if compatable should not have shorted this camera lcd out.
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