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Chapter 14 : Troubleshooting 193
4 Grasp the tab and pull it up to lift the battery out of the
compartment.
5 Replace the battery.
6 To replace the cover, first fit the cover over the buttons at the top of
the smartphone, and then press all clasps to fasten the cover to the
body of the smartphone.
7 Press and hold the power button on the top right-hand corner of your
smartphone until you see a logo on the screen (approximately five
seconds). Your smartphone needs a few seconds to start up.
Screen and performance
The screen appears blank
If you hold the smartphone up to your ear while on a call, the screen goes
dark. This is normal behaviour. It prevents your accidentally tapping an
item on the screen and saves battery power. When you take the
smartphone away from your ear, the screen automatically turns back on,
ready for use. If the screen doesn't turn on fast enough for you, tap the
screen to wake it up.
The same behaviour occurs any time you're on a call and the smartphone
screen is placed near another surface. The screen turns on automatically
(if the smartphone is still on) when you move the smartphone away from
the other surface.
When the smartphone is on and idle, the screen first dims and then turns
off. This also is normal behaviour, caused by the auto shut-off interval. You
can adjust this auto shut-off interval to be as long as three minutes (see Set
the interval for turning the screen off automatically). At first, the screen
dims as a power-saving measure. Just tap the screen to brighten it. Then, if
your smartphone remains inactive for the full interval you set, the screen
turns itself off. Press the power button to turn the screen back on.
Follow these steps in sequence if you can't turn the screen back on:
1 Make sure you have removed the protective cover that came
attached to your smartphone screen.
2 Make sure that there are no stickers covering any part of the front of
the smartphone.
3 To brighten the screen if it has dimmed, tap the screen.
4 To turn on the screen, do one of the following:
Press the power button. Drag up to unlock the screen.
Slide out the keyboard.
If the keyboard is out, press any key.
TIP If your smartphone does not turn on after you press and hold the power
button, you need to connect your smartphone to the AC charger to charge it.
193


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