Enabling fullscreen mode (disabling header and footer) on Kobo eReader (e.g. Aura One)

kobo-fullscreen.md

Fullscreen reading removes the header (book title) and footer (page progress) for a pure text reading experience. There's a hidden setting to toggle fullscreen on/off, but it exposes a bug that needs to be patched in the Kobo's onboard CSS.

1. Edit the "Kobo eReader.config" on the device http://blog.the-ebook-reader.com/2014/10/20/how-to-enable-full-screen-mode-on-kobo-ereaders/
2. Check your firmware version in Settings->Device information. These instructions are for 4.7.10413
3. Download stock firmware https://www.mobileread.com/forums/showpost.php?p=3625746&postcount=5
4. Review instructions for patching https://www.mobileread.com/forums/showthread.php?t=293052
5. Enable the fix by editing libnickel.so.1.0.0.patch and setting patch_enable to yes for the fullScreenReading fix

diff --git a/libnickel.so.1.0.0.patch b/libnickel.so.1.0.0.patch
index cd2b96c..6ae8de0 100644
--- a/libnickel.so.1.0.0.patch
+++ b/libnickel.so.1.0.0.patch
@@ -530,7 +530,7 @@ replace_bytes = 9FFA74, 24 F6 00 E7, 01 20 01 20

 <Patch>
 patch_name = `Fix three KePub fullScreenReading bugs`
-patch_enable = `no`
+patch_enable = `yes`
 # Multi-version patch: 4.7.10413 - 4.7.10413+
 #
 ## (See http://www.mobileread.com/forums/showpost.php?p=3113460&postcount=16

6. Follow the rest of patching instructions, copy KoboRoot.tgz to .kobo/ on device https://www.mobileread.com/forums/showthread.php?t=293052
7. Enable fullscreen mode by toggling the new "Show header and footer" option in Reading settings
8. Enjoy being inside the text written by the author, with absolutely no UI. Thanks to the fine hackers that made it possible!