Added: What worked was: sudo apt-get purge nvidia-* sudo apt-get purge bcmwl-kernel-source
I tried what is written here: Ubuntu gets stuck in a login loop
The first answer didn't worked. Some other ones I can't try them as I can't connect to the internet as I can't access to the network manager and some of suggestions are about editing the profile documents: the command lines for the terminal are not given and I don't know them. I hope you can help me.
