17assembling 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, or SIM card,with subscription details, such as your personalidentification number (PIN) and optional services.To use UMTS or HSDPA services, you can purchasea Universal Subscriber Identity Module (USIM) card.
