So, I decided to test my updated N810 and installed Advanced Backlight. If I try to rotate the screen, it doesn't really rotate. Screen stays the same (or sometime there are some artifacts) BUT the actual controls are changed. For example if I rotate the screen upside down, the image that I see is the same but I have to click top right corner to access the home menu instead of bottom left.
So do I need to do some additional steps to get the Advanced Backlight to work or is my N810 still not upgraded?