How do you go about flashing the BB Blue? I have written the image to my SD card, and the Blue will boot from the SD card just fine. However, the usual method of holding down the SD button and applying power does not work. The Blue still simply just boots from the SD card.
Which image are you using? Did you edit /boot/uEnv.txt?
To turn these images into eMMC flasher images, edit the
/boot/uEnv.txt file on the Linux partition on the microSD card and
remove the '#' on the line with
Enabling this will cause booting the microSD card to flash the eMMC.
Images are no longer provided here for this to avoid people
accidentally overwriting their eMMC flash.
For testing, flasher and other Debian images, see