I have a NUC5i5MYHE which still has the factory BIOS installed, running Manjaro Linux 64-bit.
Hoping to update the BIOS, I downloaded the "OS Independent" BIOS update iFlash BIOS update [MYBDWi5v.86A.0044.BI.ZIP].
I copied the .BIO file to a USB drive and shut down. On startup, I pressed F7 and got to the update BIOS menu. There I selected the USB, and then selected the .BIO file. A message appeared asking if I really want to update the BIOS using that file. I pressed Return to confirm.
Then the NUC rebooted and went to the normal Linux login screen. I logged in and checked the BIOS version; it was still the original version, not the new one.
I've done this twice. Any suggestions?
If you think the only/best solution to create a DOS boot disk and run the update from that, it would help to have a link to a page explaining how to do that for newbies.
The best way to update bios is to use recovery method: https://www.intel.com/content/www/us/en/support/articles/000005532/mini-pcs.html BIOS Recovery Update Instructions for Intel® NUC
The easiest is to recover bios from Power Button Menu:
If for some reason you have difficulty to boot into Power Button Menu, you shall recover your Bios using Security Jumper method
Thank you for the detailed guide.
But it didn't work for me. At Step 3, pressing F4 from the Power Button Menu does nothing; the NUC simply restarts.
As described in the original post, I can get to the BIOS flash menu by pressing F3, but when I select the BIOS file and press enter, the machine simply restarts without updating the BIOS.
By pressing on F3 you can not get Bios menu. However, by pressing F7 you may update bios - but this is not bios recovery (only some parts of bios firmware are re-flashed). Did you follow my instruction in Step 1 (i.e. fully reformat your USB to FAT32 in Windows machine)? If you did, please use an other USB stick. I think that with the USB stick what you are using now (if was fully formatted in Windows), you will not be able update or recover bios (even using Security Jumper removed method).
The USB should be fully formatted to FAT32 in Windows (disable the Quick option). Since you have Linux OS on your NUC, you can't format it in your NUC. You shall try on other computer. You can also download SD Formatter tool: https://www.sdcard.org/downloads/formatter_4/ SD Memory Card Formatter - SD Association and use it for repairing your USB format. You have two version of this tool: for Windows or for MAC.
And again, USB formatted in Linux will not work in Bios update.
The full format erases all old data on the USB. NTFS file system is also supported by Bios update (spouse to work too), however in this forum I've observed that in most cases the FAT32 format was successful.
FYI - While NTFS is (also) supported for booting, only FAT32 is supported for BIOS usage. The need for reformatting is because many USB flash disks come formatted for one of the FAT32 lookalikes generated by Linux or MACOS and these lookalikes are not 100% compatible with FAT32 (as implemented by the Intel BIOS). The need for not using the QUICK option is so the sectors of the flash disk are completely reformatted. This is necessary for full compatibility with the Recovery BIOS. Alas, there are still some USB 3.0 flash disks that are not compatible with the BIOS.
I finally had time to try opening the NUC and taking out the BIOS security jumper.
Then I inserted a USB formatted to FAT32 using Windows, full format not quick format, and containing only the file MYi50044.BIO.
When I turn on the machine, the Configuration Screen appears. This means that the machine did not detect the USB with the .BIO file, right?
Just to make sure, I press F3 and get a screen saying "Please turn off power and reinstall the BIOS Security Jumper in Normal or Lockdown position."
Just what I expected - your USB is not recognized for some reason.
While booted into O.S. is the USB port working? Can you see this USB with its contents?
Try work with other USB.
Downlod bios file again, may be yours is corrupted?
Yes, as described in the original post, when I boot using the power button menu I can see and select the .BIO file on the USB, but when I select it to update the BIOS, the NUC just reboots without updating. I will try downloading it again and see if that works.
It works! The problem seems to have been a corrupted .BIO file on the USB. Many thanks for your help.