To take full advantage of your smartphone's telephony capabilities, you must install a SIM card. The SIM card holder is located at the top of the battery bay.
Your new phone has two SIM card holders, you may install one or two SIM cards.
Additionally, you may wish to increase your smartphone's storage by inserting a microSD Card into the slot provided. This is next to the SIM card slot.
1. Turn off the phone by pressing and holding the power button.
2. Open the cover and remove the battery as described in Removing the battery.
3. Insert the SIM or microSD Card as shown.
4. Replace the battery and battery cover.
SIM card lock
Your smartphone may come with a SIM card lock, i. e., you will only be able to use the SIM card provided by your network operator.
To cancel the SIM lock, contact your network provider.