The Galaxy Nexus comes with a 4.65” Super AMOLED HD 720p display that is considered to be among the best in its class. It produces crisp and vivid images; a little too vivid for some, actually, as it turns out that the display isn’t set at best Gamma, Color Balance and Color Temperature values. Over on XDA-Developers, mumchristmas has found a way to correct these values and we’ve got a simple-to-follow (at least for those of who you are familiar with flashing ROMs/kernels) step-by-step guide ready after the break.
As always with advanced hack ‘n’ flash procedures, your device must be rooted and have ClockworkMod Recovery flashed. Be sure to backup using nandroid image!
DISCLAIMER: Redmond Pie will not be held responsible if you lose data or your device gets damaged in the following of this guide. Proceed at your own risk.
Step 1: Flash the latest version of Android Open Kang Project (AOKP) [XDA Thread]. AOKP is a popular ROM which supports startup tweaks which, in turn, are required for this hack to work.
Step 2: Similarly, you must flash a kernel that supports ColorControl. The person behind this hack suggest franco.Kernel [XDA Thread]
Step 3: Once you have flashed AOKP and franco.Kernel and have booted the device, set your display’s brightness to 50%. You can do this from Settings > Display.
The developer suggests going for 50% since at this point the display’s brightness is around 120 lux which is fairly close to desktop LCDs.
Step 4: Using a root-ready file explorer such as File Expert [Market Link], navigate to /etc/init.d/900colorcontrol-b50 and add the follow lines of code:
echo "-10 0 -10" > /sys/class/misc/colorcontrol/v1_offset
echo "1820000000 1900000000 2000000000" > /sys/class/misc/colorcontrol/multiplier
The developer chose 182 190 200 as valus because default value was 200. Anything higher could damage your display.
Step 5: Reboot your device.
If you followed the steps correctly, your Galaxy Nexus will now boot with a nearly perfect color temperature. If you don’t like these settings, you can always play around with them until you settle on something that suits you.
For queries, please visit the official thread.
You may also like to check out:
- How To Set Up The Galaxy Nexus As A Desktop Replacement
- Install/Flash CyanogenMod 9 Nightly On Supported Devices (Galaxy Nexus/Nexus S/XOOM) [Tutorial]