O.k., some soldering to do. But my cheap soldering iron had a broken cable and to replace it I'd need to solder a new one to its pcb (#Pinecil not delivered, yet, when will they restock @PINE64?).
I do only this one #soldering iron, but I still had a little burner. So I tried the first time soldering with that one and got the job done 😏.
It didn't look really good and I put some hot glue for extra insulation and security.
Soldering iron working again.
#2/x
Done - working!
Put together the keyboard and tested again: Works, charges.
Thanks again to megi! His work can be found here: https://xnux.eu/
To make it safe giving the mini computer phone thing to my kids I hot glued close the usb-c of the #pinephone since it is strongly adviced not to use it while connected to the keyboard - especially for charging which would be the only connections my kids do regularly.
#4/4
Having a working soldering iron for small electronics again I went for the #pcb of the #pinephone keyboard.
Like shown on the pictures in the forum post I shorted D1 with a tiny little piece of wire.
I guess I'll go for one of those magnifying glasses my dentist uses. Even in good light I can barely see this stuff without magnification.
To check my job I took this picture. It works. It really works and charges again.
Still gotta put together all the parts for a final check...
#3/x