5.1 update will bring some nice enhancements to the M9

[petvas72]

Another cool feature coming with Android 5.1 for M9 is Color temperature. Now you can forget about custom mods... https://t.co/6GaA7fwVtN
http://twitter.com/LlabTooFeR/status/613243137788674049/photo/1

Sound sliders got some nice UI update as well. https://t.co/P8aiqTTzco
http://twitter.com/LlabTooFeR/status/613245016002142208/photo/1

 

[Cool Jeff]

Can't wait for this update!
It will transform the already beast M9 to a turbo charged perfected smartphone

 

[petvas72]

Especially the display calibration tool!

 

[Wynnsman]

Whats the advantage of color temp?

 

[msm0511]

Whats the advantage of color temp?

You'll be able to warm the temperature to give a more balanced look. Some have complained that the calibration is too cool on the M9 compared to the M8. It is definitely cooler than my iPhone 6. It's really only noticeable when looking at the two side by side imo. Nice option though.