@mark1250, I'm not getting any response from the phone that it recognizes the SD card. What I read suggests the phone would hang with the SD card's image and show a red light. Mine just skips the SD card and tries to boot from the eMMC. Also, last I was able to check, when I executed lsblk and fdisk -l the card didn't showing up, at all. The results list only mmcblk2 and zram partitions. There should be mmcblk0. Having noted that, I might still try the modified JumpDrive image in the blog post you suggested.
Nah, that modified JumpDrive image didn't work. The phone still boots to a K and a gear.
Nah, that modified JumpDrive image didn't work. The phone still boots to a K and a gear.