@Lagauffre
I️ have been struggling for weeks yuh this. I️ also bought a different HDMI adapter: https://www.amazon.com/gp/aw/ya?ac=bia&ref=yo_pop_mb_bia&reorder_params=B01F1SZB2W%2C112-0615068-3893811
Once I️ read your post I️ tried hooking up the pi to my tv. Shutdown, reboot. Shutdown reboot. No issues. Thank you posting this, I’ll bet this is why a lot of people are having the same issue!

@cyperghost You mean this post? I used the Adafruit retrogame software for the GPIO to keyboard stuff. It was easy.

i figured it out- By default the default localization options were set for England. I changed it for UTF 8 and all is well now. I checked my wpa-supplicant.conf and saw a foreign symbol in place of my #. problem solved.