Looks like we can do free it from here. https://support.google.com/chromeosflex/answer/11541904?hl=e...
I'm trying it now to upgrade a 2017 Acer Chromebook.
I'm trying it now to upgrade a 2017 Acer Chromebook.
As near as I can tell, my Chromebook pulled a restore image from the USB drive correctly. But when it was done, I was left with the exact same OS I started with.