This message was posted on behalf of Intel Corporation
I have tested this behavior under a very similar unit, the Intel® NUC Kit NUC5PGYH. I pressed and hold for 3 seconds and this menu showed up with BIOS 58;
Then I updated to BIOS version #61, and the loop issue appeared. I will update your thread as soon as I have more instructions on how to proceed with this matter.
Thank you very much for reporting, we really appreciate this.
We removed Version 61 and a new BIOS version will be coming soon, for now please keep using an earlier version.