Used to create a bootable micro SD card that automatically flashes the tablet when inserted.
Image extraction: sudo dd if=/dev/mmcblk0 of=./img/device-emmc.img bs=4M status=progress conv=fsync allwinner a50 firmware
There is an ongoing community effort to support Allwinner chips in the "mainline" Linux kernel. Firmware for A50 in this context involves using Device Tree Blobs (DTB) to describe hardware peripherals like the PMIC (Power Management IC) and display controllers. 3. Firmware Structure and "Burning" Tools Used to create a bootable micro SD card