@Natty not sure, as I don't understand exactly what they mean. I asked for clarification. If anyone understands, feel free to provide the relevant feedback.
@BeastOfCaerbannog I think F.21 is a version... I guess they had a similar problem and fixed it by upgrading the BIOS/UEFI which seems possibly reasonable
@Zanna That's what I also thought. But I have seen people referring to Fedora releases in a similar way. That's why I asked. Though Fedora 21 would be an ancient version...