trouble flashing eMMC

[TylerBlackberry]

I have trouble getting pine phone pro to boot after flashing the eMMC.  I am using towboot.

Using the published instructions below from the wiki, I boot from the SD card using Kali.   Downloaded a two images Mobian and Ubuntu touch .  used dd without issue while booted from SD card.

On reboot, it fails to boot. Tried both Mobian and Ubuntu touch images. I did extract to the .img file and not flashing the .xz or the .gz version of the image.

OS

1. Flash an OS to the microSD card (and optionally resize the partition, see below)
   
2. Insert microSD card and boot the phone
   
3. Download the desired OS' image on the booted OS or transfer it to the microSD card
   
4. Extract the image file if it is archived
   
5. Flash the image file to eMMC using 
   
   
   Code:

   dd if=IMAGE.img of=/dev/mmcblkX bs=1M status=progress conv=fsync