Also you can install it in the original HDD bay or use a USB HDD enclosure to check your drive is still working. To check if the HDD or SSD is defective you could just swap with a different drive to check if that is true. In this how-to we will briefly explain some of the troubleshooting you can do to investigate why your drive is not working the HDD Caddy.
Your HDD Caddy is not working after installing can be related to a software or a hardware problem.