I'm doing this. There is a detailed version of what I did. Now someone suggested me to install TWRP recovery, it could be installed via the playstore, but now I have no idea on how to make android run, it just opens in the CM recovery mode.
The second option seems to involve some kind of file transfer and manipulation of the files via a terminal on windows, but I have no clue on how to run files on my phone using Windows. I guess that the ADB is a tool for doing that, but until now I don't know how to do it.