What you need to do is attempt to reinstall the latest available BIOS, but this time use the Jumper-based BIOS Recovery method. This process is documented here: Intel NUC BIOS Recovery Update Instructions. Here re some recommended extra steps you should perform:
- It is better to use a USB 2.0 flash disk than it is a USB 3.0 flash disk.
- Regardless, you should reformat your USB flash disk first. Do this on a Windows-based PC (not Linux and not MACOS). Do a full reformat; disable the Quick option and use the FAT32 file system.
- Place only the .BIO file for the BIOS on the flash disk.
- Follow the instructions for doing the jumper-based BIOS Recovery process.
Just to be sure, it is worth following this process on both NUCs.
Hope this helps,
Thanks. I'll give that a try tomorrow. In the meantime I formatted an older USB 2.0 Flash Drive in my Windows 10 Desktop and installed just the .BIO file and tried updating using the F7 method again. This time I took a quick snapshot. Some of the text is outside the TV boarder, but most can be read. See the attached image below:
BIOS Update Fail.jpg 605.4 K
It worked !
I removed the bottom cover and spotted the yellow jumper. Removed it and inserted the USB drive. Powered on and sat back to watch it update. Took quite a while (~5 minutes) but all went well. I powered down, replaced the jumper and reset the BIOS (default) and made some individual changes before exiting and trying the system. It will be a week or so until I'm sure the issues I had are gone.
I really appreciate the help.
After a week my problems were still present. I did manage to fix both the intermittant black screen and intermittant start from suspend. The problem turned out to be the placement of the external USB IR (infrared) sensor I was using. When placed directly under my LCD TV, these problems happened. When I moved the IR sensor away from the TV a few inches, both problems seem to be gone. Again, it will take a week or so to be sure. I googled IR interference and found this solution.