Remove the battery cover by lifting from the slot on the bottom of the handset.
Remove the battery by lifting from the slot on the bottom of the battery compartment.
To remove, slide the SIM card out of the slot.
The SIM card is now removed.
To insert, slide the SIM card into the slot with the gold contacts down.
To replace the battery, ensure the metal contacts on the battery and handset are aligned and then press the battery into place.
Reattach the battery cover, pressing around the edges to snap into place.