Nokia Lumia 822: BasicsChapter 4An HSDPA/HSUPA data connection (network service) isopen.voice mailboxThere is no SIM card in your phone.Your SIM card is locked.Your phone is roaming and not on your home network.Silent mode is switched on.Airplane mode is switched on.Vibrate mode is switched on.Battery power levelBattery saver mode is switched on.The battery is charging.Use your phone offlineIn places where you do not want to make or receive calls, you may stillaccess your music, videos, and offline games if you switch airplanemode on.On the start screen, swipe left and tap Settings > airplane mode> On .When airplane mode is switched on, your connection to the mobile net-work is closed and all radio frequency signals between the phone andthe mobile network are prevented. You need to manually set wireless,bluetooth, and NFC back to On to use them after selecting airplanemode.Switch the phone off when mobile phone use is not allowed or when itmay cause interference or danger. Remember to comply with any ap-plicable safety requirements.Set the phone screen to switch off after a short timeFrom the start screen, swipe left, and tap Settings > lock screen>Screen times out after.Lower the screen brightnessFrom the start screen, swipe left, and tap Settings > brightness,switch Automatically adjust to Off , and select the desired level.Use network connections selectively• If you are listening to music or otherwise using your phone, but donot want to make or receive calls, switch airplane mode on.• Set your phone to check for new mail less frequently.• Switch Bluetooth on only when needed.• Use a Wi-Fi connection to connect to the internet, rather than amobile data (GPRS /Edge/3G/4G) connection.• Stop your phone scanning for available Wi-Fi networks. On the startscreen, swipe left and tap Settings > Wi-Fi and set it to Off .Your phone is connected to an LTE network.Your phone is connected to a EVDO, TD-SCDMA, orUMTS network (network service).1X Your phone is connected to a 1X network (network ser-vice).An EDGE data connection (network service) is open.A Wi-Fi connection is available.A Wi-Fi connection is active.A Bluetooth device is connected to your phone.Your calls are forwarded to another number or yourThe icons may vary depending on your region or network service pro-vider. For a complete list of icons, see www.windowsphone.com/.Status bar icons26