I just received my El Cheapo from K-Retro, if I boot off of the Benn Venn boot.bin, it loads and shows the firmware as .08 - if I copy the boot.bin from the v20240409-a.zip file it will not boot and just says no boot file.
How odd. I’ve just downloaded the menu again and put it on my SD card (16Gb in this case but 8Gb is what I recommend and sell in our shop), and it loads up no problems. Do you have the CONFIG.BIN file on the card as well? If that’s there, the only thing I can think of is that the SD card is not compatible. What brand is the card?