Inserting Galaxy S3 SIM Card

It is recommended to use a plastic tool for opening the rear case in the next four steps in order to avoid damaging of the clips along the perimeter of the case.

On the top part of the unit, in the notch where the rear case and the rest of the phone connect, insert the plastic or any other slim tool.

Carefully twist the tool until the clips disconnect.

Once again insert the tool from the left top side and continue with gentle twisting of the tool so the the gap can widen up.

Continue to move the plastic opening tool around the perimeter of the top left corner, gently prying up along the rear case.

Lever the top right side first, and repeat the same action with the down right side of the case.

Lift up the rear part of the case and remove it from the device.

If some clips are still holding the case down at the bottom, you should carefully peel it up in order to separate it from the rest of the phone.

For this step you may not need to use any tools, but it is still recommended.

Insert the opening tool into the small notch above the battery and lever it carefully.

Take the battery out of its recess.

Push the SIM card with your fingernail deeper into the slot.

The moment you hear the click, release the card. It will come out of its slot instantly.

For the reassambly process, place the SIM card back into its slot and push it until it clicks again. This way you will be certain it is in the right position.

With your thumb slide the SIM out of the slot.

Take the SIM card out of the phone.