I just got back a my Raspberry shake that I loaned to a school teacher for a couple years. It no longer shows up on the raspbery shake network when I plug it in. It also does not show up on my home computer network. I tried plugging in a monitor and keyboard. It does not seem to boot. just a black screen. I moved the SD card to a Raspberry pi that I know is working, same thing, just a black screen.
I think maybe the SDcard was corrupted and want to download a new operating system, but don’t know where to find it.
Please help.
Thanks,
Bill