I'm trying to flash Beaglebone back from element14 by step on Getting Started page , it can't flash or boot on sdcard on deabian 9.1 LXQT or 9.3 loT lasteset Firmware Image, but I can flash on Old Firmware debian7.5 from step "dd if=/dev/mmcblk0 of=/dev/mmcblk1" on stackoverflow this page. I use debug port, It show
U-Boot SPL 2018.01-00002-ge9ff418fb8 (Feb 20 2018 - 20:14:57)
Trying to boot from MMC1
U-Boot 2018.01-00002-ge9ff418fb8 (Feb 20 2018 - 20:14:57 -0600), Build: jenkins-github_Bootloader-Builder-38
CPU : AM335X-GP rev 2.1
I2C: ready
DRAM: 512 MiB
No match for driver 'omap_hsmmc'
No match for driver 'omap_hsmmc'
Some drivers were not found
Reset Source: Power-on reset has occurred.
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment
what should I do? thanks you.