3 Select Phone autolock period, and define the length of time after which the deviceis locked automatically.Lock your device manuallyIn the home screen, press , select Lock phone, and enter the lock code.Unlock your deviceSlide the lock switch, enter the lock code, and select OK.If the lock switch is out of reach, press the menu key, and select Unlock.Lock your device remotelyForgot your device at work and want to lock it to prevent unauthorised use? You canlock your device remotely using a predefined text message.Enable remote locking1 Select Menu > Settings and Phone > Phone management > Securitysettings > Phone and SIM card > Remote phone locking > Enabled.2 Enter the text message content. It can be 5-20 characters, and both upper and lowercase letters can be used.3 Enter the same text again to verify it.4 Enter the lock code.Send the lock messageTo lock the device remotely, write the predefined text, and send it to your device as atext message.To unlock your device, you need the lock code.Find more helpSupportWhen you want to learn more about how to use your product or you are unsure howyour device should function, go to www.nokia.com/support, or using a mobile device,nokia.mobi/support. You can also read the in-device guide. Select Menu >Applications > User guide.If this does not resolve your issue, do one of the following:• Reboot your device. Press and hold for about 8 seconds. The device vibrates threetimes and switches off. To switch your device on again, press .• Restore the original factory settings.• Update your device software.Find more help 113