Lock keys and screenWant to avoid accidentally making a call when your phone is in your pocket or bag?To lock the keys and screen of your phone, press the power key.Unlock the keys and screenPress the power key, and drag the lock screen up.Set the keys and screen to lock automaticallyTap Settings > lock+wallpaper > Screen times out after, and select the length of time after whichthe keys and screen are locked automatically.Connect the headsetEnjoy your favourite music, or free your hands for other things when in a call.Connect the headset to your phone.Do not connect products that create an output signal, as this may damage the device. Do not connectany voltage source to the audio connector. If you connect an external device or headset, other thanthose approved for use with this device, to the audio connector, pay special attention to volumelevels.Change the volumeTrouble hearing your phone ringing in noisy environments, or calls too loud? You can change thevolume to your liking.Use the volume keys.© 2013 Nokia. All rights reserved. 10