Nokia 5800i XpressMusic User Manual

Contents

Nokia 5800i XpressMusic User Manual Manual pdf 42 page image

security certificate in your device. For more information,contact your service provider.Important: Even if the use of certificates makes therisks involved in remote connections and softwareinstallation considerably smaller, they must be used correctlyin order to benefit from increased security. The existence ofa certificate does not offer any protection by itself; thecertificate manager must contain correct, authentic, ortrusted certificates for increased security to be available.Certificates have a restricted lifetime. If "Expired certificate"or "Certificate not valid yet" is shown, even if the certificateshould be valid, check that the current date and time in yourdevice are correct.Before changing any certificate settings, you must make surethat you really trust the owner of the certificate and that thecertificate really belongs to the listed owner.14. Green tipsHere are tips on how you can contribute toprotecting the environment.Save energyWhen you have fully charged the battery and disconnectedthe charger from the device, unplug the charger from the walloutlet.You do not need to charge your battery so often if you do thefollowing:● Close and disable applications, services, and connectionswhen not in use.● Decrease the brightness of the screen.● Set the device to enter the power saver mode after theminimum period of inactivity, if available in your device.● Disable unnecessary sounds, such as keypad and ringingtones.RecycleMost of the materials in a Nokia phone are recyclable. Checkhow to recycle your Nokia products at www.nokia.com/werecycle, or with a mobile device, www.nokia.mobi/werecycle.Recycle packaging and user guides at your local recyclingscheme.Save paperThis user guide helps you get started with your device. Formore detailed instructions, open the in-device help (in mostapplications, select Options > Help). For further support,see www.nokia.com/support.Green tips42 www.nokia.com/support