13Chapter 1Getting StartedSecurity and Movement RelatedFollow the instructions for the relevantlocation (e.g., airplane, hospital, etc.) whenusing a wireless communication device(wireless LAN, Bluetooth, etc.).Avoid exposing a drive to magnetic fields.Security devices with magnetic fields in-clude airport walk-through devices and se-curity wands.The airport security devices that check car-ry-on luggage, such as conveyor belts, usex-rays instead of magnetism and will notdamage a drive.When carrying the notebook computerwith other items, such as the adapter,mouse, books, etc, take care not to pressanything against the notebook computer.If a heavy object is pressed against thenotebook computer, a white spot or stain mayappear on the LCD. Therefore, take care not toapply any pressure to the notebook.In this case, place the notebook computerin a separate compartment away from otherobjects.Before upgrading the computer, be sureto shutdown the computer first and thenseparate all connected cables. If thenotebook computer has an external type(removable) battery, separate the battery,too.Failure to do so may cause electric shock.Safety PrecautionsWarningFailure to follow instructions marked with this symbol maycause personal injury and even fatality.