- u need write mainine uboot to emmc or spi dl.khadas.com - Index of /firmware/uboot/mainline/ u can do it via krescue (Mainline u-boot for khadas sbc) or use other soft
- try boot up mainline linux from sd/USB
PS: just check Krescue tread for other info
HOW-TO easy write mainline uboot to EMMC or SPI
Krescue - main menu → advanced - > experimental
- Update/Write U-Boot by online to EMMC
- Update/Write U-Boot by online to SPI-Flash
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