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An unfused i.MX6 SoM will fall back to booting from USB when it has not found any bootable code on the attached storage. Therefore it can be used to deploy software to a new system. Since the HummingBoard 2 there are also boot select jumpers that allow explicitly selecting USB as the boot source. The particulars can be found in this articleHummingBoard Edge/Gate Boot Jumpers .
Identify the OTG port
To quote our developer Jon: “it is the top port next to the Ethernet jack” More formally it is the top port on the U5 header. This holds true of all our i.MX6 based boards.
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However it is more likely that neither Linux nor even U-Boot are available at this point. Refer to section Booting from USB (OTG)i.MX6 U-Boot how to load u-boot to RAM.
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