if the sdcard was booting that means the emmc uboot partition was working before...
a better approach would have been to reinstall to emmc after booting to sdcard.
if you borked the emmc and the sdcard no longer boots then you probably need an emmc usb adapter or more involved solution.
a better approach would have been to reinstall to emmc after booting to sdcard.
if you borked the emmc and the sdcard no longer boots then you probably need an emmc usb adapter or more involved solution.