Thank you for reading this and long live this project! My hardware is very same as of the title of the thread.
I'm stuck at the installer's (currently posted "snap" download running on Ubuntu v.16.04 "LTS" desktop host), screen saying " waiting for recovery mode " after have manually selected my model at the installer's first prompt, and having switched the smartphone to " fastboot mode " first. I'm currently stuck now having the " UBPORTS Recovery " environment showing into the smartphone and no progress on the installer's side.
Please advise. Much appreciated.