Samsung SGH X820 Manual

Also see for SGH X820: Service manual

100Health and safety informationPotentially explosive environmentsSwitch off your phone when in any area with a potentiallyexplosive atmosphere, and obey all signs and instructions.Sparks in such areas could cause an explosion or fireresulting in bodily injury or even death.Users are advised to switch off the phone while at arefuelling point (service station). Users are reminded ofthe need to observe restrictions on the use of radioequipment in fuel depots (fuel storage and distributionareas), chemical plants, or where blasting operations arein progress.Areas with a potentially explosive atmosphere are oftenbut not always clearly marked. They include the areasbelow decks on boats, chemical transfer or storagefacilities, vehicles using liquefied petroleum gas, such aspropane or butane, areas where the air contains chemicalsor particles, such as grain, dust or metal powders, and anyother area where you would normally be advised to turnoff your vehicle engine.Emergency callsThis phone, like any wireless phone, operates using radiosignals, wireless, and landline networks as well as user-programmed functions, which cannot guaranteeconnection in all conditions. Therefore, you should neverrely solely on any wireless phone for essentialcommunications like medical emergencies.To make or receive calls, the phone must be switched onand in a service area with adequate signal strength.Emergency calls may not be possible on all wireless phonenetworks or when certain network services and/or phonefeatures are in use. Check with local service providers.To make an emergency call:1. Switch on the phone.2. Key in the emergency number for your presentlocation. Emergency numbers vary by location.3. Press [ ].Certain features like Call Barring may need to bedeactivated before you can make an emergency call.Consult this document and your local cellular serviceprovider.