Find information about wireless coverage indicators

217

Turn off a wireless connection

217

Network connection indicators

217

Turn on wireless coverage notification

198

Check the wireless coverage level using a voice command

37

About the preferred wireless network list

218

Add a wireless network to the preferred wireless network list

218

Change the order of preferred wireless networks

218

Delete a wireless network from the preferred wireless network list

219

Turn off data service

219

About roaming

220

Switch wireless networks manually

220

About global roaming

220

Global roaming prerequisites

220

Connect to a GSM network

221

Change the network mode

221

Verify the status of network connections and services

221

Wireless network coverage troubleshooting

221

Power and battery

223

Turn off your device

223

Set your device to turn on and turn off automatically

223

Check the battery power level

223

Check the battery power level using a voice command

38

Reset the device

223

Extend battery life

223

SIM card

225

About the SIM card phone book

161

Load the SIM card phone book

161

Add a contact to your SIM card

161

Change a SIM card contact

161

Delete a SIM card contact

162

About SIM card security

226

Protect your SIM card with a PIN code

226

Security

227

Security basics

227

Encryption

228

Password keeper

229

Advanced security

232

Smart cards

233

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