Access Nook Glowlight 4 32gb Storage

[Nookie.Reader]

Hi, might be a noob question.
is there any way to access the 32gb storage of the GL4?
ive did a few research but none of them worked.
i was able to find the installing android on nook, but is there any cons in doing that? would it affect my battery? because my nooks battery can only last a few days, not even a week (wifi off and brightness off).
im mostly reading manga so the 5gb sideload is not enough.

if there is a way of accessing it without rooting (im scared of issues. i live in the Philippines, not much support on bricked nooks here)