It turns out that Android P can't connect to my home wifi and Nokia doesn't allow me to download the.zip file to rollback to 8.1
I've tried all suggestions from this thread on 6 browsers, 2 pcs and another phone. It simply does not allow me to get the original OS back.
Can someone who made a rollback please upload the .zip on some other hosting site, I just can't do anything on my phone in this state.
you can get unofficialy file(s) here:
after you download i sugest check if file is correct, here is sha256 checkum of files downloaded from Nokia:
on Linux: sha256sum B2N-213B-0-00WW-B05-update.zip
on macOS: shasum -a 256 B2N-213B-0-00WW-B05-update.zip
on Windows: certUtil -hashfile B2N-213B-0-00WW-B05-update.zip SHA256
Thanks a lot for the reply. I ended up creating a third account and than it worked.
The links can be useful if someone still can't get the rollback. Thanks.