HTC One

Step 1 of 4

Insert your SIM

Insert the opener for the SIM holder into the small hole in the SIM holder on the side of your phone.

Step 2 of 4

Insert your SIM

Remove the SIM holder from your phone.

Step 3 of 4

Insert your SIM

Turn your SIM so that the angled corner of your SIM matches the angled corner of the SIM holder.
Place your SIM in the SIM holder.

Step 4 of 4

Insert your SIM

Insert the SIM holder into your phone.