White Screen (Basic troubleshooting already done)

[Flavor]

I think it'll work with the Freeplay Zero image, actually. I haven't done this in a while, though. You might need the Freeplay CM3 image. Anyway, we've done this with a ribbon cable for testing before. It's a good idea to try. I just don't recall if there's anything else that needs to be considered.

Also, make sure you get the pins connected the right way. It's easy to get things backward or upsidedown when you're using a ribbon.