How to Zoom with S Pen on Galaxy Note 3
When you use S Pen to work with your one of Galaxy Note series devices, you can literally do all the actions from typing, selecting, copying to ...
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The ultra power saving mode on the Galaxy S6 turns the screen from color to Black and White. But if you want to manually change the Galaxy S6 screen color to black and white, you need to do as follows:
1. Open the Settings application on your Galaxy S6
2. Under the Device tab, tap to open the accessibility settings
3. Under the Categories option, tap the Vision option
4. Now, scroll down and make sure to enable the Grayscale option