Fastboot is only half of the equation, a target device will also require a bootloader that can connect to a network and listen for fastboot commands.

This article includes the Fastboot OEM Unlock Command as one of the basic terminal command that every Android owner should know because even though you as an individual users may not need it, this ...

When you set up ADB, you’ll get fastboot commands, too. Fastboot commands like “fastboot flash” will allow you to install custom recoveries and kernels.