Samsung SM-S921W User Manual page 14

Getting started
Precautions for wireless charging
If you do not follow the precautions, the device may not charge properly or may
overheat, or the device and any cards may be damaged.
Do not place the device on the wireless charger with a credit card or radio-
•
frequency identification (RFID) card (such as a transportation card or a key card)
placed between the back of the device and the device cover.
Do not place the device on the wireless charger when conductive materials, such
•
as metal objects or magnets, are placed between the device and the wireless
charger.
If you use the wireless charger in areas with weak network signals, you may lose
•
network reception.
Use Samsung-approved wireless chargers. If you use other wireless chargers,
•
the battery may not charge properly.
Quick charging
Use a super fast charger or fast charger. To use the fast wireless charging feature, use a
charger and components that support the feature.
You can check the connection status of the charger by opening Settings and tapping
Battery.
If fast charging does not work, open Settings, tap Battery → Charging settings,
•
and then check if the feature you want is turned on. Also, check if the USB cable
and the USB power adapter are connected properly.
You can charge the battery more quickly while the device or its screen is turned
•
off.
If the wireless charger has an internal fan, the fan may produce noise during
•
fast wireless charging. Add a routine to set the fast wireless charging feature to
turn off automatically at the preset time using Routines. When the fast wireless
charging feature turns off, the charger's fan noise and the indicator light will be
reduced.
14