● To reset the device from time to time foroptimum performance, power off the device andremove the battery.These suggestions apply equally to your device,battery, charger, or any enhancement. If any deviceis not working properly, take it to the nearestauthorised service facility for service.DisposalThe crossed-out wheeled-bin symbol on yourproduct, literature, or packaging reminds youthat all electrical and electronic products,batteries, and accumulators must be taken toseparate collection at the end of their working life.This requirement applies to the European Union andother locations where separate collection systemsare available. Do not dispose of these products asunsorted municipal waste.By returning the products to collection you helpprevent uncontrolled waste disposal and promotethe reuse of material resources. More detailedinformation is available from the product retailer,local waste authorities, national producerresponsibility organizations, or your local Nokiarepresentative. For the product Eco-Declaration orinstructions for returning your obsolete product, goto country-specific information atwww.nokia.com.186 Care and maintenance