On MAC OS X open finder, hold down ALT and click Go then Library in the top menu bar.
On Windows open Run from the start menu, type %appdata%\.minecraft\ and click Run.
Locate the Minecraft Application Folder:.
Download the MrCrayfish’s Device Mod below or from anywhere, make sure the mod is compatible with the version of Forge installed.
The first thing to do is make sure you installed Minecraft Forge.
This is a simple tutorial that will helps you to install MrCrayfish’s Device Mod for Minecraft 1.13, 1.12.2 and others version successfully! Report Video MrCrayfish’s Device Mod Installation