Nokia 6800 User Guide 15 Copyright © Nokia 2003Welcome and quick guideREPLACE THE BACK COVER1 Place the top of the back cover on the lockingcatches on the back near the top of the phone.2 Slide the back cover until it locks into place.• SWITCH YOUR PHONE ON OR OFFWarning: Do not switch the phone on when wireless phone use isprohibited or when it may cause interference or danger.To turn your phone on or off, press and hold the power key for at least 3 seconds.Note: In the flip open mode, press b to turn off the phone.If the phone displays Insert SIM card even though the SIM card is properly inserted,or SIM card not supported, contact your wireless provider.Enter the PIN code or security code if necessary and press OK.Flip closedOn/OffOnOffFlip open