(1) Whether the camera photos can be read has nothing to do with the lock switch on the SD card. That's the function of locking the file against modification, that is, it can't be written. Reading is unrestricted.
(2) In addition, the SD card is durable and not so easily damaged. So the first two answers are biased.
Simple method:
Turn off the camera, then take out the SD card (memory card), insert it into the SD card reader slot of the computer or notebook (if the notebook or computer model is older, you may not have this card reader, you can buy an SD card reader with USB interface, the market price is 5~ 10 RMB), and then you can read the photos.
If you have any questions, please attach detailed error information and I will help you to answer them.