Instructions on inserting/removing your SIM can help with activation issues/errors, browser connection problems and a blank/frozen screen.
Don't attempt to insert the SIM card while the device is powered on. Doing so may harm the SIM card and/or the device.
Ensure the device is powered off.
From the right edge of the device (display facing down), open the slot cover using your thumb or finger.
With the gold contacts facing up and the notch facing out, insert the SIM card into the tray as shown then insert the card tray.
Ensure the card fits into place.
Press in on the tray to lock it into place.
Close the slot cover.
Press from the bottom to the top of the cover to lock it in place.