Teddybee reacted to SteeMan in Armbian for Amlogic S905X3
You didn't follow the instructions correctly. The instructions say to "copy" the u-boot.sd file, not rename. The install to emmc uses the u-boot.sd file so if it doesn't exist because you renamed it you would see the problems you are having. Fix this situation on your sd card and redo the install to emmc.