Hi, I have build own Ubuntu-QT image and copy with zImage & u-boot in nanopi-neo air eflasher - Ubuntu core partition install to the emmc. But below error will be get. how to install the own build u-boot, zImage into emmc ????? U-Boot 2017.05 (Jul 10 2017 - 11:16:21 +0800) Allwinner Technology C...