Ah then that's probably not going to fly with the Lenovo ones. (In my defender for buying it, finding good 11 inch laptops these days is hard- netbooks have mostly died out in favor of tablets and such. Plus, I needed Skylake for hardware HEVC decoding since nothing in the relatively cheap laptop range is going to have a discrete card that can do that, and 1080p HEVC takes a fair chunk of CPU to decode.)
Re: EFI updates