12Useful Information■ When using peripheral devicesFollow these instructions and the Reference Manual to avoid any damage to the devices. Carefullyread the instruction manuals of the peripheral devices.● Use the peripheral devices conforming to the computer’s specifications.● Connect to the connectors in the correct direction.● If it is hard to insert, do not try forcibly but check the connector’s shape, direction, alignment ofpins, etc.● If screws are included, fasten them securely.● Remove the cables when you carry the computer. Do not pull the cables forcibly.■ Preventing your computer from unauthorized use via wireless LAN/Bluetooth● Before using wireless LAN/Bluetooth, make the appropriate security settings such as dataencryption.■ Battery Recalibration● The battery recalibration may take a long time due to the large battery capacity. This is not amalfunction.• Full charge: Approximately 2.5 hours• Complete discharge: Approximately 2 hoursWhen performing “Battery Recalibration” without shutting down Windows, it may take more time tocharge/discharge.● Disable [Economy Mode(ECO)] when performing “Battery Recalibration”.■ SensorsThis computer is equipped with 4 sensors (acceleration sensor, gyro sensor, magnetic sensor,ambient light sensor), and you can use these sensors with any software that is compatible.The accuracy of each sensor output depends on the operating environment and other conditions.The results should only be used as a reference.The acceleration sensor, gyro sensor, and magnetic sensor are located on the left side of the LCD.The detection results of each sensor may vary depending on how you are holding the computer, theapplication software you are using, and other factors.● Automatic brightness adjustmentThe computer is equipped with an automatic brightness adjustment function that adjusts thedisplay screen based on the ambient light sensor. You can configure the automatic adjustmentfunction as follows.Display “Charm” and touch - [Change PC settings] - [PC and devices] - [Power and sleep],then set “Adjust my screen brightness automatically” to [On].The ambient light sensor is located at the top of LCD (è page 4).The ambient light cannot be detected properly if this area is obstructed or dirty.Handling and Maintenance