LG LGL45C User Manual page 246

Tools and Calendar
Write Protection
The microSD adapter has a built-in Write Protection lock to
prevent accidental overwriting or removal of your data when the
microSD card and adapter are inserted in another device.
Slide the Write Protection lock tab down into the "Lock"
G
G
position to prevent overwriting of data. To allow data to be
added or removed from the microSD card, slide the Write
Protection lock tab up into the normal position.
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