Samsung phones have a Grayscale mode that turns the screen black and white when the battery is getting low. It is a battery saving tool which helps you get extra juice out of your dying battery.
This works because unlike colored pixels, AMOLED displays don’t need battery power to display black pixels. So if you own a device with an AMOLED screen, you too could benefit from this feature.
However, currently this feature is locked to Samsung software only. But if you want to use it, you can still do it by following these simple steps:
With these easy steps, you can easily install and run Samsung’s Grayscale mode on any other android device with an AMOLED screen.
It may take some time and effort to root your phone, or set up ADB on your computer, but in the end, the result is worth it.