Magnify with triple-tap
Go to Settings > System > Accessibility >
Magnification > Magnify with triple-tap.
Once enabled, use one finger to quickly tap
three times on the screen to zoom in.
Drag with two or more fingers to scroll.
Fold inward or open outward with two or
more fingers to adjust the zoom level.
Quickly tap three more times to exit zoom.
To zoom in temporarily, quickly tap on the
screen three times and hold your finger on the
last tap.
Drag your finger to move around the screen.
Loosen the fingers and return to the original
position.
Note:
You can't use zoom function on the keyboard or
navigation bar.
Power button ends call
Go to Settings > System > Accessibility and
then enable "Power button ends call". This
allows you to end a call by simply pressing the
power button.
Color inversion