How to install the SIM or USIM card on Galaxy Note8?

Only Nano-SIM cards work with the device. Use caution not to insert the SIM card on position for memory card Insert the SIM or USIM card provided by the mobile telephone service provider.
 
NOTE : Use caution not to lose or let others use the SIM or USIM card. Samsung is not responsible for any damages or inconveniences caused by lost or stolen cards. Some LTE services may not be available depending on the service provider.

• Dual SIM models: In some areas, data transfer speeds may be slower if two SIM cards are inserted in the device than when one SIM card is inserted.

                   ( Single SIM models )                                           ( Dual SIM models )

Pictorial representation of the above settings are as follows : 

1). Insert the ejection pin into the hole on the tray to loosen the tray. Ensure that the ejection pin is perpendicular to the hole. Otherwise, the device may be damaged.

2). Pull out the tray gently from the tray slot.

3). For Single SIM models, place the SIM or USIM card on the tray with the gold-colored contacts facing downwards.
For Dual SIM models, Place the SIM or USIM card on the tray with the gold-colored contacts facing downwards.

Place the primary SIM or USIM card on the SIM card tray 1 ( 1 )
and the secondary SIM or USIM card on the SIM card tray 2 ( 2 ).

 
NOTE : Use caution not to insert the SIM card on position for memory card. Doing so can cause damage to the SIM card or device

4). Gently press the SIM or USIM card into the tray to secure it. If the card is not fixed firmly into the tray, the SIM card may leave or fall out of the tray.

5). Insert the tray back into the tray slot.

       ( Single SIM models )                                                ( Dual SIM models )

 
• If you insert the tray into your device while the tray is wet, your device may be damaged. Always make sure the tray is dry.
• Fully insert the tray into the tray slot to prevent liquid from entering your device.

• Use only a nano-SIM card.
• You cannot insert a nano-SIM card and a microSD card in tray 2 at the same time.

CLICK HERE to how to remove the SIM or USIM card on my Galaxy Note8 (SM-N950).