MicroPython blank screen?

I tried flashing a Pico 2 Wireless with the firmware from here: GitHub - LofiFren/PicoCalc - the device powered up, but the screen was blank. I had an SD card installed with the files installed as described but maybe I missed a step? I thought it wasn’t working, so I put everything back to as supplied and am back on MMBASIC.

I tried again, and found I could connect with Thonny. I was missing boot.py for the above uf2; I switched to the official one and it goes into REPL just fine on screen.

edit(‘file.py’) will invoke an editor (yay!) but what do I do to exit the editor? Esc will take me out but doesn’t save any edits - anyone know?

To save inside the editor, press CTRL-S

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