I replaced the original Intel 520 series SSD from my Lenovo X230 by another SSD which was straight forward. Then I decided to reuse the Intel SSD in another PC. This turned out to be a nightmare. The only result I ever got, was an I/O error. My first attempt was to use the Intel SSD toolbox to erase the whole disk. The answer I got: Secure Erase can not be done, because ATA security is enabled. Disable ATA security before erasing the current drive. Unfortunately the toolbox didn't tell me how ton disable ATA security.
So what can I do now ?