The only effect that will have is if you want to use the e-ink screen.
Every e-ink screen has a calibration (waveform) file.
Remove all USB attachements, re-boot it (again), let it go to sleep and tell us how the screensaver looks.
Black and White or does it have clearly defined grayscale values.
During start-up, the process may (??should??) replace the calibration file.
= = = =
In answer to the question you almost had to post here, the part of this thread you wanted was the part about getting it to accept:
PHP Code:
fastboot set bootmode main
Or about something similar (in this thread - which is about recovering an "Erase All" victim).
Use the 'search thread' tool and those words as keywords.
I may not have it quite correct, but something very like that is in here.