16assembling andpreparing yourmobile phoneGet started by assembling and setting up your mobilephone for its first use.Install the SIM card and batteryWhen you subscribe to a cellular service, you willreceive a Subscriber Identity Module (SIM) card withsubscription details, such as your personalidentification number (PIN) and optional services.To install the SIM card and battery,1. Remove the battery cover.If the phone is on, press and hold [ ] to turnit off.