Yesterday my SDHC card reader wouldn't mount/read any of my SDHC cards.
I finally determined that there may be some debris on the pins in the card reader so My "fix" was to cut a piece of cardboard to the same width as the SDHC card but several inches longer so I could pull the cardboard in & out of the slot. I then covered the cardboard with a thin lens cleaning cloth after cutting it to same size as the cardboard. I covered both sides of the cardboard with the lens cleaning cloth, dampened it with alcohol then inserted both into the card reader slot & gently moved it in & out several times. I waited several minutes for everything inside the card reader to dry. My reader now reads/mounted my SDHC card. Apparently, I removed some debris from the card reader pins.
I finally determined that there may be some debris on the pins in the card reader so My "fix" was to cut a piece of cardboard to the same width as the SDHC card but several inches longer so I could pull the cardboard in & out of the slot. I then covered the cardboard with a thin lens cleaning cloth after cutting it to same size as the cardboard. I covered both sides of the cardboard with the lens cleaning cloth, dampened it with alcohol then inserted both into the card reader slot & gently moved it in & out several times. I waited several minutes for everything inside the card reader to dry. My reader now reads/mounted my SDHC card. Apparently, I removed some debris from the card reader pins.
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