How to easily fix the LG G3 QHD screen's annoying oversharpening issue

With great technology advancements come some not so great tradeoffs, though, and chief among those for the G3 is its battery life, which is inferior to most other 2014 flagships on account of the big, ultra high-res display. The other issue is screen oversharpening - edges of text or icons in LG or some 3rd party apps often look like you've moved the sharpening slider in Photoshop to the max, resulting in ugly etched rims surrounding text and other elements on the screen. Fret not, however, as there is now an extremely easy way to fix that, and still enjoy the G3's breathtaking pixel density. Needless to say, you have to have root on your G3, and here's what you need to do afterwards:

1. Download the latest sharpening mod 3.0 for the LG G3 directly on your device, or transfer it to the phone afterwards;

2. Reboot LG's finest in the custom recovery tool of your choice you have installed (here's what you need to do to install one, if you don't know what that is), and archive your boot partition just in case;

3. Pick the .zip file with the sharpening mod on your phone from there, and install it, choosing a sharpening value from 0-40, in 5 step increments;

4. Reboot the phone, and turn off the screen at least one time to make the fix operational.

source: Skin1980 (XDA-Devs)