Hi volks,
first of all my english ain't so well, so please have some patience with me 
actually i can't get install LibreElec on my Nuc or any other PC. Im tryed with this how to, all steps are working and the files are oh my stick. But not one device want to boot from the stick. My first idea try it on my other PC maybe the nuc hast some failture, doesen't work. Next try wars to get a new USB Drive, sadley still the same.
Now i'm hope somebody here get an idea what is wrong.
Perhaps you need to 'clean' your USB stick(s) first with this tool:
HP USB Disk Storage Format Tool
And then write the diskimage again to your USB stick.
Any NUC should be able to boot from an USB stick, unless you enabled Fastboot in the BIOS.
Just formatting isn't always enough. The HP USB tool also cleans the boot sector. It has helped people in the past.
Which NUC is it? Have you tried different USB ports? IIRC there might also be a problem with booting from USB 3.0.
It's an Nuc DN2820FYKH i'm try it on diferent USB Ports to. The next try is fomating with th HP USB tool
Hmh, my only idea is to check the bios settings again: Would make sure, both, UEFI and Legacy modes are enabled and USB is checked in the advanced boot configuration. Press F10 during boot and you should(!) be able to see and select the USB stick in the menu. At least if it works like my on my HSW i5 NUC...
Some usb sticks just won't boot easily. Try some others.
Are you trying to dual boot with an old openelec install?
I tried the same thing & it won't work. You have to unplug the hard drive that has openelec installed.
