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Fails during boot - hangs in 'DRAM' - after attempt to update uboot

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The device 6UL SBC fails during boot - hangs after DRAM after attempt to update bootloader

Device (kinda) boots and prints the following:

CPU: Freescale i.MX6UL rev1.1 528 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 47C
Reset cause: POR
I2C: ready

... then it hangs. I mistakenly used the u-boot-dtb-signed-ccimx6ulsbc1GB.imx instead of the u-boot-dtb-signed-ccimx6ulsbc1.imx.
How do I get it back to a proper boot (any hints would be appreciated - I see there are some notes on a serial bootloader, but I'm not sure how that works).
asked Jan 16, 2019 in Linux by stpe New to the Community (1 point)

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1 Answer

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I'll answer my own question.

There is a perfectly good description on howto recover near-bricked devices at

.. so, note2self: RTFM :-)
answered Jan 17, 2019 by stpe New to the Community (1 point)