Android Screen Calibration
Android devices have a screen calibration utility called G-Sensor calibration. You can find it in Settings > Display. To make sure that the three axes are calibrated properly, this program is runwhile the mobile device is laid on a flat surface. You can tell whether the surface is level by the horizontal and vertical leveling bubbles on the display. Then press the Calibrate button to reset the G-Sensor, as shown in Figure 8-3.
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Figure 8-3 G-Sensor calibration on a typical smartphone.
Resetting the Device
Use a reset to solve calibration and other types of problems. Try this before returning the unit for service:
Soft reset—Power down the device off and then power it back on again. Solves temporaryproblems.
Hard reset—Removes all data and applications and returns the device to its original factorystate; be sure to back up all information and settings on the device first.
GPS and Geotracking
The Global Positioning System (GPS), developed by the U.S. Department of Defense (DoD) is a worldwide system of satellites that provide location information for anything with a GPS receiver. Any mobile device with a GPS receiver can use this system to identify its location and utilize map-ping programs and any other applications that rely on GPS.
To enable/disable GPS on an Android-based device, go to Settings > Location, and select Use GPS Satellites. To enable/disable GPS on an Apple device such as an iPad, go toSettings > Location Services.
Note
When GPS is enabled, geotracking (tracking and recording the location of a mobile device over time) is also enabled.
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Mobile Network Connectivity and Email
Configuration
Cell phones use GSM (Global System for Mobile Communications) for voice calls. When sending data, any of the following may be used depending on the phone and the network connection:
GSM or general packet radio service (GPRS) for 2G 3GPP or EDGE for 3G
Device meets IMT-Advanced, has a 4G antenna, and in range of a 4G transmitter for 4G
Enable/Disable Connectivity
To turn off all connectivity (GSM, Wi-Fi, GPS, Bluetooth), use the Airplane mode found in recent and current devices:
Android (typical)—Settings > Wireless & Networks and check mark Airplane Mode, as shown in Figure 8-4 or press and hold the Power button.
Apple tablet—Settings > Airplane Mode, as shown in Figure 8-5.
Airplane Mode Is Enabled
Figure 8-4 Airplane mode on a typical smartphone.
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Airplane Mode Is Enabled
Figure 8-5 Airplane mode on a typical Apple tablet.
The airplane icon on both systems indicates that Airplane mode is in use.
Note
Some airlines require the device be turned completely off.
Wi-Fi Connections
Mobile devices will use Wi-Fi connections where available. To connect
Android—Settings > Wireless & Networks > Wi-Fi Settings; if necessary, tap Add Wi-Fi
Network; enter SSID if necessary; enter passcode if necessary.
Apple iOS (iPad, iPod touch, iPhone)—Settings > Wi-Fi; tap Other and enter SSID if net-work not listed; enter passcode if necessary.
Note
Android devices should be updated to support WPA2 if they currently lack support for WPA2, because this is the strongest Wi-Fi encryption standard.
Bluetooth Connections
Used for connections to headsets, printers, and to create wireless personal area networks (PANs) between Bluetooth-enabled devices.
Android devices—Must be enabled before useiOS devices—Typically enabled
To use a headset with an Android device, follow these steps:
1. Settings>Wireless & Networks> and check the box forBluetoothto enable it.
2.Tap Bluetooth Settings.
3.Prepare the headset. With some headsets, you hold down a button on the headset.
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4.Tap Scan for Devices on the Android device while holding down the button on the headset.
5.On the Android device, under the Bluetooth device tap Pair with This Device.
6.Enter a pin code if necessary. Many devices come with a default pin of 0000.
7.To disconnect, tap the Bluetooth icon shown in Figure 8-6 and select OK.
To connect to other devices (mobile or a PC with Bluetooth), your device must be set to discover-able.
Figure 8-6 shows an Android device after being paired with a headset (look for the Bluetooth icon).
Bluetooth Is Enabled
Headset Is Discovered
and Connected
Figure 8-6Bluetooth Settings Screen on an Android smartphone showing the Motorola H700headset connected.
To connect to an iOS device, follow these steps:
1. Settings>General> and tapBluetooth.
2.Tap Bluetooth to enable it (if it isn’t enabled already).
3.Prepare the headset.
4.Tap the device name, and it should automatically connect, as shown in Figure 8-7.
5.Enter a pin code if necessary.
6.To remove the device, click it, and on the next screen, tap Forget.
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Bluetooth is enabled
Headset is discovered and connected
Figure 8-7 Connected Bluetooth headset on an iPad2.
To check connections to the device, try to use it.
Email Configuration
You must provide the following:
Email service type (POP3, IMAP, Exchange) Email address and password
Incoming server name
Security settings (SSL or TLS) Port number (110 for POP3)
Outgoing server name (SMTP server) Security settings
Port number (25 for SMTP)
Account options (when to check for mail, notifications, and so on)
On Android, start the process from Menu > All Apps > Mail.
On iOS, start the process from Settings > Mail, Contacts, Calendars > Add Account > Other >
Add Mail Account
In the event you cannot connect, be sure to verify that you have a
Working Internet connection
Correct server names, port numbers, and security settings
To access Gmail on your device, install the Gmail app, or use your browser to access it.
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Mobile Device Security
To protect the information on your mobile device, follow these recommendations:
Set up a screenlock (password, PIN, pattern) Disable visible passwords
Specify how long to lock the phone after inactivity
Configure credential storage so that a password must be used to access the credentials on the device
Lock the device
Install a locator app
Install a remote wipe program
Use a remote backup service (iCloud, Android Cloud) Back up settings (Android only)
Update the operating system Install antivirus
Use a mobile device management (MDM) suite in organizations with many mobile devices
Laptop and Tablets: How They’re Different
Table 8-2 describes the differences between laptops and tablets.