18assembling andpreparing yourmobile phoneGet started by assembling and setting upyour mobile phone for its first use.Install the SIM or USIM card andbatteryWhen 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 use UMTS services, you can purchase aUniversal Subscriber Identity Module (USIM) card.
