Troubleshooting: Q&A109Troubleshooting: 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 the lockcode, contact your device dealer.If you forget or lose a PIN or PUK code, or if you have notreceived such a code, contact your wireless serviceprovider.For information about passwords, contact your accesspoint provider, for example, a commercial internet serviceprovider (ISP) or wireless service provider.BatteryQ: Why does my battery drain fast?A: Features using Bluetooth technology, or allowing suchfeatures to run in the background while using otherfeatures, increase the demand on battery power andreduce battery life time.Also packet data connections increase the demand onbattery power. If you have set Packet data connection toWhen available in Connection settings, and there is nopacket data coverage (GPRS), your device periodically triesto establish a packet data connection, which causes theincreased demand on battery power.To prolong the operating time of your device, turn theBluetooth technology off when you do not need it. Also setPacket data connection to When needed. To close all theapplications that are running in the background, and youdo not use, press and hold , and select the applicationsfrom the list. Then exit the application.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.CameraQ: Why do images look smudgy?A: Ensure that the camera lens protection windows are clean.Display