Basics212 After fully charging, disconnect the device from the wireless charger.Precautions for wireless charging• 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, suchas metal objects and magnets, are placed between the device and the wirelesscharger.The device may not charge properly or may overheat, or the device and the cardsmay be damaged.• If you use the wireless charger in areas with weak network signals, you may losenetwork reception.• Use Samsung-approved wireless chargers. If you use other wireless chargers, thebattery may not charge properly.SIM or USIM card (nano-SIM card)Installing the SIM or USIM cardInsert the SIM or USIM card provided by the mobile telephone service provider.For dual SIM models, you can insert two SIM or USIM cards so you can have two phonenumbers or service providers for a single device. In some areas, data transfer speeds may beslower if two SIM cards are inserted in the device than when one SIM card is inserted.Use caution not to lose or let others use the SIM or USIM card. Samsung is notresponsible for any damages or inconveniences caused by lost or stolen cards.Some LTE services may not be available depending on the service provider. For moreinformation about service availability, contact your service provider.
