Ordering from JLCPCB
When you order from JLCPCB, upload the Gerber files located in the repository folder of the board you want to make, and select the options in the screenshot below (you can customize the color). Make sure it detects the board as 4-layer!
NOTE: The screenshot shows ENIG as the surface finish. If you are using tactile switches (clicky buttons like the GBA SP had), then you can choose HASL, but the finish will be silver instead of gold. I find ENIG easier to solder parts on. ENIG must be selected if you are not using tactile switches.
