Remove the back cover
Turn the back of your phone towards you.
Take hold of the bottom of the back cover and remove it.
Take hold of the bottom of the back cover and remove it.
Remove the battery
Take hold of the bottom of the battery and remove it.
Insert your SIM
Place your SIM as shown on SIM holder and slide it in.
Insert the battery
Place the battery in your phone (top first), matching the battery contacts with the phone contacts, and press it into place.
Replace the back cover
Place the back cover on your phone, bottom first, and press it into place.