Additional information: If instead of current version I use SD card image from 2017: https://get.debian.org/debian/dists/stable/main/installer-armhf/20170615/images/netboot/SD-card-images/ then I don't get the problem of getting stuck in this step. The installer actually starts. But because I have the old version then I get kernel mismatch:
lqqqqqqqqqqqqqqqqu [!!] Download installer components tqqqqqqqqqqqqqqqqqk x x x No kernel modules were found. This probably is due to a mismatch x x between the kernel used by this version of the installer and the x x kernel version available in the archive. x x x x If you're installing from a mirror, you can work around this problem x x by choosing to install a different version of Debian. The install x x will probably fail to work if you continue without kernel modules. x x x x Continue the install without loading kernel modules? x x x x <Go Back> <Yes> <No> x x x mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
