Remote security features — Set up remote lock. If you lose your phone, you canremotely lock it or delete the data saved on it.Hide private information from your notificationsDon't want to let other people see who has called you? When you have missed a callor received a message, a notification is displayed on the lock screen. You can definehow much information is displayed.Select and Notifications > Notifications, and activate or deactivate Hide privateinformation.When Hide private information is activated, only the number of received messagesand missed calls is displayed.When Hide private information is not activated, when you have received a messageor missed a call, the following information is displayed:• The name of the person who has tried to call you• The sender of the message you have received• Part of the message contentDevelop your own applicationsYou can create your own applications for the phone using an applicable softwaredevelopment kit (SDK).You need to activate developer mode on the phone to be able to use it as a target forapplication development. Developer mode enables connectivity between thedevelopment host and the phone, and provides a few additional tools on the phone.Activate developer modeSelect and Security > Developer mode, and activate Developer mode.It is recommended that you do not activate developer mode, unless you intend todevelop applications for the phone. Activating developer mode does not expose thephone to security risks, but you may accidentally delete important system files.For more information, go to developer.nokia.com.Reset your phoneIf your phone stops respondingRestart your phone. Press and hold the power key for at least 8 seconds. To switchyour phone on again, press and hold the power key until the phone vibrates.No content, such as contacts or messages, is deleted.100 Phone management