Bookworm 6.12.y for the uConsole and DevTerm

[Rex]

I haven’t done it myself but in the QMK post the question was asked.

QMK firmware for uConsole keyboard

Great effort and I am ready to try this firmware. But I still have a question, if I brush and don’t continue to use it, how can I restore the official firmware and use the official refresh method?

I’d try the instructions @olly laid out.