I'm leanring the imx6ulevk and using the L4.14.98ga. I wanted to burn the u-boot and rootfs.sdcard into eMMC, but it failed. I don't how deal with it. I used the uuu according to the reference -- i.MX Linux User's Guide.
① The serial download mode is as follows:
SW601 ON OFF
SW602 ON OFF OFF OFF
② When I plug in the USB port, it would show the choose of accessing ubuntu. But when I used uuu to burn, the hint showed again.
③ The Ubuntu interface is shown below：