I am not able to install the BIOS-Update [BECFL357]. Every time when I confirm "restart and install" the NUC (NUc i7-8559U ) restarts but the update wasn´t installed.
In order to get better information about your system, please download the Intel System Support Utility (SSU). Run the SSU scan and save the results. The .txt file with the results please attach to your post.
In this case instead of using the express method for BIOS update, you may try to update BIOS using BIOS Recovery from the Power Button Menu method:
I do not know how you got to that page.
You can choose your update method here:
I normally do the first one (.BIO).
However, you should do the 2nd one (.MSI).
Read and understand what you are doing BEFORE actually attempting the update. Questions? Ask first.
Doc (not an Intel employee or contractor)
Please download the BE0087.bio as instructed in my previous post and follow the instructions from my post. Please do not download the .msi file as advised by Scott, since the .msi file is used for express update (which failed in your case), while I've instructed to perform BIOS Recovery from the Power Button Menu.