16CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY ANINCORRECT TYPE.DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.Charging the batteryFor initial use, you need to charge your smartphone for eighthours. After that you can charge it each day to recharge thebattery to full capacity.Connect the AC adapter cord to the micro USB connector onyour smartphone.Removing the batteryOpen the batterycompartment as shown in“Installing the battery“ onpage 15. Lift the battery outof the compartment usingthe clip on the top of thebattery.Replace the battery cover asdescribed above.Installing a SIM or microSD cardTo take full advantage of your smartphone’s telephonycapabilities, you must install a SIM card. The SIM card holder islocated at the bottom of the battery bay.Additionally, you may wish to increase your smartphone’sstorage by inserting a microSD card into the slot provided. Thisis next to the SIM card slot.12