Thread:Talk:R-Car/Boards/Yocto-Gen3/Can't Modify U-Boot Environment Variables on Updated Firmware

I am trying to get up and running with the R-Car H3 Starter Kit Premier Board (h3ulcb). I first followed the instructions here http://elinux.org/R-Car/Boards/Yocto-Gen3 to build Yocto 2.19 for the board. When I attempted to run the built Yocto image on the board (both via tftp and via microSD), I received a kernel panic message. The limited resources on the internet (i.e., the other posts on this wiki) indicated this could likely be resolved by updating the firmware. I then followed the instructions here http://elinux.org/R-Car/Boards/H3SK#Flashing_firmware to update the firmware on the board. Now when I turn the board on, I cannot get to the stage where the option of cancelling autoboot (as shown in examples in the links given). I am therefore not able to change U-Boot's environment variables to specify the Image file to boot. It seems that U-Boot is perhaps not loading at all. Any help would be greatly appreciated!

Output of boot sequence is below: