I have a second hand Rock PI4 ,it’s v1.3 ,does not have spi flash IC.
Let’s say I have two SD card, and one NVME SSD. My final goal is booting Rock Pi4 from NVME SSD.
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Boot Rock Pi4 from the first SD card. then insert the second SD card via a SD card reader on USB port.
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Inside OS, write something call “uboot” (I am not quite understand uboot) into second SD card.
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Then write OS image to nvme SSD.
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Power off Rock PI4 , unplug the first SD card ,and insert the second SD card, and connect NVME SSD.
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Then it will boot ?
It is correct ? any one can provides some more detail (better with the command line instructions)
PS: I already bought one SPI flash IC , but I don’t have hand soldering experience, not sure I can make it work ?