Certain models of the Amazon Kindle e-book reader are designed for users outside the United States. Because most cellular networks outside the U.S. operate using GSM technology, a Subscriber Identity Module (SIM) card is required. Unlike most cellphones, removing the Kindle's SIM card requires a little more effort than merely disconnecting the battery. The SIM card occupies a slot on the system board and you must open up the Kindle to access it.
Place the Kindle face down on a table. Insert a small flat-blade screwdriver into the space between the metal case and the plastic RF cover at the top. Slide the tip of the screwdriver along the groove until you locate the two tabs securing the cover. Press the tabs with the screwdriver and slide the plastic cover off.
Remove the two Phillips screws fastening the back panel in place. One screw on each side must be removed using the Phillips screwdriver.
Remove the 20 Phillips screws securing the plastic support structure to the front case.
Unplug the two speaker cables from the system board. The cables attach just below the speakers on each side. Lift the plastic support off the Kindle.
Slide the metal SIM card cover to the unlocked position as shown on the cover and lift it up. Lift the SIM card out of its holder.