how do I unlock a sd card?
There should be a tab along the rail of the card holder. Pressing the tab will release the card.
I figured it out. So dumb.. I looked more closely at the SD card, found a little groove that locks and unlocks the card. The SD card in my camera kept reading out "card locked." it wouldn't allow me to do anything with the card, but I finally figured out how to unlock the sd card itself.
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Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them