Troubleshooting: Q&A125Troubleshooting: Q&AAccess codesQ: What is my password for the lock, PIN, or PUK codes?A: The default lock code is 12345. If you forget or lose thelock code, contact your device dealer.If you forget or lose a PIN or PUK code, or if you have notreceived such a code, contact your network serviceprovider.For information about passwords, contact your accesspoint provider, for example, a commercial internet serviceprovider (ISP) or network service provider.Application not respondingQ: How do I close an application that is not responding?A: Press and hold . Scroll to the application, and pressto close the application.Bluetooth connectivityQ: Why can’t I find my friend’s device?A: Check that both devices are compatible, have activatedBluetooth connectivity, and are not in hidden mode. Checkalso that the distance between the two devices is not over10 meters (33 feet) and that there are no walls or otherobstructions between the devices.Q: Why can’t I end a Bluetooth connection?A: If another device is connected to your device, you caneither end the connection using the other device or bydeactivating Bluetooth connectivity. Select Tools >Bluetooth > Bluetooth > Off.DisplayQ: Why do missing, discolored, or bright dots appear on thescreen every time I turn on my device?A: This is a characteristic of this type of display. Some displaysmay contain pixels or dots that remain on or off. This isnormal, not a fault.Home network (UPnP)Q Why can’t the other device see the files stored on mydevice?A: Make sure that you have configured the home networksettings, Content sharing is turned on in your device, andthe other device is UPnP compatible.Q: What can I do if my home network connection stopsworking?A: Switch off the wireless LAN connection from yourcompatible PC and your device, and switch it on again. Ifthis does not help, restart your compatible PC and yourdevice. If the connection still does not work, reconfigurethe WLAN settings in both your compatible PC and device.See ‘Wireless LAN’, p. 70, and ‘Connection’, p. 120.