How to repair micro sd 16gb card? It shows 31mb

Memory Cards Mobile memory, professional cards and all other st
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this worked for me. I selected the Format Size Adjustment to “on” under the Options button. the 297mb card magically had 29.7gb after formatting. pretty sure the card was linux formatted for a cyanogenmod boot drive which is why it did not show full capacity. thanks a bunch unklefunky