[SOLVED] Not possible to expand SD card

[Nachteule]

Hmmm, it should work, but you have already swap partition, that's an indication for root fs expansion has been already done, but probably with the wrong size.

When you start your Pi, do you see the splash message sd card resize..., and/or fs resize... and/or creating swap... ?

You could start that process again if you remove swap partition and reboot again

Before removing swap partition, you have to stop swap first:

Terminal

sudo swapoff -a