[DuckieTigger]

Originally Posted by Jackie7

Hi,

I have recently bought a brand new Kindle Paperwhite from Amazon, abd despite my old Kindle 4, it is impossible to completely turn of the background illumination, i.e. even if I set it to zero, the backlight will still be visible in dark light. This will eat up my battery.

The question is: is that normal, or a bug? What can I do about it?

Originally Posted by Ephemerality

If you do want it off completely, there's a thread about it in Developer Corner

Originally Posted by VaultBoy

Without "hacking?" You don't.

That depends on your definition of "hacking". In above mentioned thread I did post a light toggle switch for KUAL (see here) which adds a button to KUAL (jailbreaking still required for it). This version does not modify any system files any more - unlike posts #1, #6, #63 in said thread. All those other 3 methods require some altering by yourself of system files.

You will also find: Turn Off Frontlight W/O Jailbreak in that thread, which lets you turn the light off w/o requiring jailbreak.

And I apologize for this shameless self-advertisement - 3 of those above mentioned and linked posts are done by me.