Removing your SIM card can help with activation issues/errors, browser connection problems and a blank or frozen screen.
Don't attempt to remove the SIM card while the device is powered on. Doing so may harm the SIM card and/or the device.
Ensure that the device is powered off.
From the top edge of the device (display facing up), remove the card tray.
Utilize the insertion/removal tool (or a paperclip) to unlock the tray by inserting it into the provided slot (figure 1) then remove the tray (figure 2).
Remove the SIM card from the tray.
From the bottom of the card, carefully lift to remove. To assist, use the opening on the opposite side of the tray to dislodge (using a fingernail or similar tool).
If applicable, refer to Insert SIM Card.
Insert the card tray.
Press in on the tray to lock it into place.
Check out these interactive demos (S9 or S9+) for more info.