@Chris-Stratton Yes, I'm aware that a "hard brick" is possible :)
Can you share the information on how it's possible to change the UART Port for U-Boot?
I removed read-only from DTB and it worked.
However during initial porting attempt, my bootloader failed to load kernel.
While trying to fix it, I accidentally erased my u-boot so I have to open the shield.
Onion have just released the Uboot source code: https://github.com/OnionIoT/omega2-bootloader.git
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