What does lock do on the side of an SD card?
Answer:
Locking an SD card or USB thumb drive will prevent background from being delete or changed. It can also prevent you from adding files to the card. If the card is inserted contained by a device and you are unable to hide away files to the card, check to make sure it hasn't be accidentally locked.
it makes the card write proof, but still readable.
Both the above answers are correct. It's newly like a write-protect serration on a floppy disk.
Related Questions: