This is what I understood the first-sale doctrine to be as well. Turns out there's a whole separate section for trademark law: https://en.wikipedia.org/wiki/Fi

This is what I understood the first-sale doctrine to be as well. Turns out there's a whole separate section for trademark law: https://en.wikipedia.org/wiki/First-sale_doctrine#Overview_of_trademark_law_application https://en.wikipedia.org/wiki/First-sale_doctrine#Overview_o... Does that prevent you re-selling a device with an unlocked bootloader if you clearly indicate that it is unlocked? Probably not, but it's more complicated than I thought at first glance.