10-25-2021, 08:35 AM
I've got me an A-A USB cable to try the recovery process but failed to do that (probably didn't do the sequence right). Instead I tried again to boot with eMMC disabled and enable it once the boot started. I've stopped the U-boot from automatically booting and it showed that eMMC does indeed exist. After that I booted into Linux and did `dd if=/dev/mmcblk1 of=/dev/mmcblk2` (from SD card to eMMC). Rebooted again and it booted from eMMC.