DFL can be activated at boot by sliding the power button and pressing the brightness buttton at the same time.

DTB was taken from https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/releases/download/v3.10/boot_focal.tar.gz and decompiled, then SPI interface was enabled according to https://github.com/avafinger/bananapi-zero-ubuntu-base-minimal/issues/49 .

This will help bridge touch input with graphics, as I'll try to implement, specifically for the emulator, a compatibility layer that will launch the main Qt GUI with the XCB platform plugin and not the Kobo one to be able to input touch.

DFL (Direct Firmware Loader) mode is a special boot environment where InkBox OS exports the entire MMC over USB storage. The user has 3 seconds from ~ when the green light starts blinking (kernel is loaded) to press both Home and Power buttons to enter DFL mode. If only one of these two or none at all is activated, the boot process continues as normal.