Touch screenTo control your device, lightly touch thescreen with your fingertips. The screendoes not respond when you use yourfingernails.If your fingertips are cold, the screen maynot respond to your touch.To avoid scratching the touch screen,never use a pen, pencil, or other sharpobject to write on the touch screen.Noise cancellationIf you are calling from a noisyenvironment, your device filters outbackground noise to make your voicesound clearer to the person at the otherend of the line.Noise cancellation is not available whenusing the loudspeaker or a headset.For the best noise cancellation, hold thedevice with the earpiece to your ear andthe main microphone towards yourmouth. Do not cover the secondarymicrophone at the back of the device.Insert the SIM card and batteryFollow the instructions carefully, to avoiddamaging the back cover.1 Unlock the back cover release latch,and lift the back cover.2 If the battery is inserted, lift thebattery out.3 Insert a SIM card. Make sure thecontact area of the card is facing up.Push the card in, until it locks intoplace.4 Line up the contacts of the battery andthe battery compartment, and insertthe battery.5 To replace the back cover, direct thetop locking hooks toward their slotsGet started 7