I see the CB3-131 is on the GalliumOS hardware compatibility list (https://wiki.galliumos.org/Hardware_Compatibility) now, under Intel Bay Trail, and supposedly works with ChromeOS as a dual boot option. However, the installation guide (https://wiki.galliumos.org/Installing) links to https://wiki.galliumos.org/Installing/Preparing as a first step, which says "On Bay Trail Chromebooks, you will have to flash your firmware. Luckily, John Lewis' script makes it a very straight forward process. Unfortuantely, you'll have to open up your Chromebook. Also note that after completing this process, you will no longer be able to run Chrome OS on your Chromebook, so no dualbooting for this one I'm afraid."

This contradicts the entry in the HCL. Is this true? Were you able to get your CB3-131 to dual boot?