Internal Display issues

[willisilliw]

hey - pretty new to pinebook pro and this forum, but really happy with what I've been seeing in the community. I had the same issue as the OP and thought maybe my sequence of events will be a small contribution.

TLDR - chmod 777 on all the mrfixit files from here before running script.

Sequence of events - maybe this will help with the search when others do it.
- I was completely confused when I could hear the ubuntu booting from SD card, but saw nothing. 
- searched a few things like "SD card not working", "bootable is unbootable", "display not working" etc etc
- ended up looking through a post about ubuntu eMMC and ended up thinking that it might be the uboot script that had broken
- tried that method where step 6 occurs - we flash the uboot, but to no avail.
- I then refined my search and included "uboot issues" ending me here.
- I then tried the script again with sudo, but still display showed nothing and the ubuntu drums played in the background.
- last thing i did (probably not ideal), performed a chmod 777 on all the files, then running the script. (this worked!)

TLDR - chmod 777 on all the mrfixit files from here before running script.

Thanks Pine64 Community