Flashing a Custom ROM isn’t difficult, but it also isn’t always straight forward. In this video, XDA TV Producer TK gives a generic overview of the process. He explains the reasons for the many steps you will find in flashing a Custom ROM. While this video won’t give you the exact steps for your device, the foundation taught in this video will help you understand what you are doing.

via How to Flash a Custom ROM – Android Basics 101 – XDA Forums.