Quote:
Originally Posted by minosimo
it seems the process is more like flash uboot, access uboot via serial, and use that to flash the ubootenv and rest of the emmc?
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Yup, that's mostly it.
Uboot is a second stage loader (like grub on your computer). AFAICT fastboot is implemented on top of uboot.
So the first step is to load u-boot in memory and jump to it (via uuu). Then from a u-boot prompt enable fastboot.
I'm afraid you'll need that UART.