Ah! silly me.
Everything worked like a charm, except I'm back to the red light and black screen when I turn off the laptop, remove SD card and boot back up. Oh well...
As for no internet on mrfixit SD card, I tried two different SD card OS on two different PineBkPros. It's the laptop itself - must be a loose connection. I'll stick it back in when I have a small screwdriver to hand. It is strange that the OS does not turn off properly. Maybe its because I flashed the image to the SD card using Etcher instead of using dd.
Everything worked like a charm, except I'm back to the red light and black screen when I turn off the laptop, remove SD card and boot back up. Oh well...
As for no internet on mrfixit SD card, I tried two different SD card OS on two different PineBkPros. It's the laptop itself - must be a loose connection. I'll stick it back in when I have a small screwdriver to hand. It is strange that the OS does not turn off properly. Maybe its because I flashed the image to the SD card using Etcher instead of using dd.