Basics16Increasing the charging speedTo increase the charging speed, turn the device or its screen off when you charge the battery.While charging the battery when the device is turned off, the icon appears on the screen.If the fast charging feature is not activated, on the Home screen, tap Apps → Settings →Device maintenance → Battery → → Advanced settings, and then tap the Fast cablecharging switch to activate it.• You cannot use the built-in fast charging feature when you charge the batteryusing a standard battery charger.• If the device heats up or the ambient air temperature rises, the charging speed maydecrease automatically. This is a normal operating condition to prevent damage tothe device.Wireless chargingThe device has a built-in wireless charging coil. You can charge the battery using a wirelesscharger (sold separately).Fast wireless chargingYou can charge your device faster using the fast wireless charging feature. To use this feature,you must use a charger and components that support the fast wireless charging feature.A fan inside the charger may produce noise during fast wireless charging. To reducethe fan noise, you must deactivate the fast wireless charging feature. The on/offoption will be added in your device’s settings menu when you first place it on thecharger. On the Home screen, tap Apps → Settings → Device maintenance →Battery → → Advanced settings, and then tap the Fast wireless charging switchto deactivate it. Deactivating this feature will reduce noise, but may result in slowercharging times.