Digital rights managementContent owners may use different types of digital rightsmanagement (DRM) technologies to protect their intellectualproperty, including copyrights. This device uses various typesof DRM software to access DRM-protected content. With thisdevice you can access content protected with WMDRM 10,OMA DRM 1.0, OMA DRM 1.0 forward lock, and OMA DRM 2.0. Ifcertain DRM software fails to protect the content, contentowners may ask that such DRM software's ability to accessnew DRM-protected content be revoked. Revocation may alsoprevent renewal of such DRM-protected content already inyour device. Revocation of such DRM software does not affectthe use of content protected with other types of DRM or theuse of non-DRM-protected content.Digital rights management (DRM) protected content comeswith an associated activation key that defines your rights touse the content.If your device has OMA DRM-protected content, to back upboth the activation keys and the content, use the backupfeature of Nokia PC Suite.If your device has WMDRM-protected content, both theactivation keys and the content will be lost if the devicememory is formatted. You may also lose the activation keysand the content if the files on your device get corrupted.Losing the activation keys or the content may limit yourability to use the same content on your device again. For moreinformation, contact your service provider.BatteryBattery and charger informationYour device is powered by a rechargeable battery. The batteryintended for use with this device is BL-4U. Nokia may makeadditional battery models available for this device. Thisdevice is intended for use when supplied with power fromthe following chargers: AC-8. The exact charger modelnumber may vary depending on the type of plug. The plugvariant is identified by one of the following: E, EB, X, AR, U, A,C, K, or UB. For example, the model numbers for the chargercan be, among others, AC-8C, AC-8U etc.The battery can be charged and discharged hundreds oftimes, but it will eventually wear out. When the talk andstandby times are noticeably shorter than normal, replace thebattery. Use only Nokia approved batteries, and rechargeyour battery only with Nokia approved chargers designatedfor this device.If a battery is being used for the first time or if the battery hasnot been used for a prolonged period, it may be necessary toconnect the charger, then disconnect and reconnect it tobegin charging the battery. If the battery is completelydischarged, it may take several minutes before the chargingindicator appears on the display or before any calls can bemade.Safe removal. Always switch the device off and disconnect thecharger before removing the battery.Proper charging. Unplug the charger from the electrical plugand the device when not in use. Do not leave a fully chargedbattery connected to a charger, since overcharging mayshorten its lifetime. If left unused, a fully charged battery willlose its charge over time.Avoid extreme temperatures. Always try to keep the batterybetween 15°C and 25°C (59°F and 77°F). Extremetemperatures reduce the capacity and lifetime of the battery.A device with a hot or cold battery may not work temporarily.Battery performance is particularly limited in temperatureswell below freezing.Do not short-circuit. Accidental short-circuiting can occurwhen a metallic object such as a coin, clip, or pen causes directconnection of the positive (+) and negative (-) terminals ofthe battery. (These look like metal strips on the battery.) Thismight happen, for example, when you carry a spare batteryin your pocket or purse. Short-circuiting the terminals maydamage the battery or the connecting object.Disposal. Do not dispose of batteries in a fire as they mayexplode. Dispose of batteries according to local regulations.Please recycle when possible. Do not dispose as householdwaste.Leak. Do not dismantle, cut, open, crush, bend, puncture, orshred cells or batteries. In the event of a battery leak, preventbattery liquid contact with skin or eyes. If this happens, flushthe affected areas immediately with water, or seek medicalhelp.Damage. Do not modify, remanufacture, attempt to insertforeign objects into the battery, or immerse or expose it towater or other liquids. Batteries may explode if damaged.Correct use. Use the battery only for its intended purpose.Improper battery use may result in a fire, explosion, or otherhazard. If the device or battery is dropped, especially on ahard surface, and you believe the battery has been damaged,take it to a service centre for inspection before continuing touse it. Never use any charger or battery that is damaged. Keepyour battery out of the reach of small children.Nokia battery authentication guidelinesAlways use original Nokia batteries for your safety. To checkthat you are getting an original Nokia battery, purchase itfrom a Nokia authorised service centre or dealer, and inspectthe hologram label using the following steps:38 Digital rights management© 2009 Nokia. All rights reserved.38