I had the same problem, tried 3 different flash drives, USB2 and USB3.
Here's how I solved it:
1 put the SY0044.bio file somewhere on your local hard disk instead of a flash drive, lets say in /tmp.
2 do the F7 method and select the SY0044.bio in /tmp.
That worked for me.
However, another Linux user reported that this solution only worked for him after he put the SY0044.bio in the /boot/efi directory on the local hard disk.
If one not work, try the other.
Thanks, I'll give it a try. BG
Yes, it worked. I put the file in /boot/efi. Much appreciated! BG