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11 SIM card tray
Place a Subscriber Identication Module (SIM) card into the SIM card tray to establish a wireless Wide Area
Network (WAN) connection. For instructions on how to install and remove the SIM card, see “Installing
and removing the SIM card” on page 23.
Note: The SIM card tray is not functional on Wi-Fi-only models.
12 Emergency reset hole
If the tablet stops responding and you cannot turn it off or turn it on by pressing the power button, remove
the ac power adapter and reset the tablet by inserting a needle or a straightened paper clip into the
emergency reset hole to turn off the tablet.
13 Power connector
Connect the ac power adapter to the power connector to provide ac power to the tablet and charge the
battery. See “Charging the battery” on page 19.
14 Built-in stereo speakers
The integrated speakers provide audio output for video and music playback.
15 Windows button
Press the Windows button to go to the Start screen.
16 Multi-touch screen
Tap the screen to use the controls on the screen including icons, menu items, and the onscreen keyboard.
For more information, see “Using the multi-touch screen” on page 13
.
17 Front-facing camera
Your tablet has a 2-megapixel front-facing camera, which you can use to take pictures, create videos,
or make video calls in collaboration with Web applications. When the camera is started, the green
camera-in-use indicator turns on. For more information, see “Using the cameras” on page 22
.
18 Microphones
The built-in microphones capture sound and voice when they are used with an application capable of
handling audio.
19 Ambient light sensor
The ambient light sensor detects the brightness of the environment. The screen brightness automatically
adjusts depending on the ambient light conditions detected by the built-in ambient light sensor.
6 User Guide