Put your fingernail in the small slot at the bottom of the phone, lift and remove the cover.
If the battery is in the phone, lift it out.
Slide the SIM card into the SIM slot with the contact area face down.
Insert the second SIM
If you have a dual-SIM phone, slide the second SIM in the SIM2 slot. Both SIM cards are available at the same time when the device is not being used, but while one SIM card is active, for example, making a call, the other may be unavailable.
Line up the battery contacts, and put the battery in.