Step 1: We'll Assume You Can Disassemble Your N64
Step 2: The Board
Step 3: The Emblem
When you get the emblem off peel the gunky glue off the back this will really make your emblem glow allowing maximum light to shine through!
Edit: doing another and took a pic of how the opening should look:) This one I had to use a hair drier but it eventually came off fine...don't get in a hurry