Write protection problem in old canon rebel- help? (1 Viewer)

I have one of the early Rebels, the T1, I think. The memory cards have all decided to write-protect themselves. I tried moving the teeny switch on the cards, no response. I tried moving a teeny switch in the card slot, it busted off. I read the funny manual on the CD that came with the camera. I looked up the "properties" of the cards. No luck.
Anybody got any suggestions? This has me flummoxed. Otherwise, it is a pretty good camera.

The switch on the SD card is not a switch but a bit of plastic that operates the switch in the SD card holder. So looks like a camera repair

The problem just fixed itself, and I didn't do anything? Go figure. I think camera companies do this on purpose, hoping we will buy a bigger newer model.