Learn how to install SIM Card on your Samsung Galaxy S4 Active.
Note: Before closing the cover, check to see if there is any completely closed by pressing just below the flash (3) foreign substance such as dust or sand between the until you hear a click. rubber on the back of the cover and the sealing area.
Note:The plug-in SIM card information and its contacts can be easily damaged by scratching or bending, so be careful when handling, inserting, or removing the card. Keep all SIM cards out of reach of small children.
Carefully slide the SIM card into the SIM card socket (as shown) until the card locks into place.
Make sure that the cards gold contacts face into the phone and that the upper-left angled corner of the card is positioned as shown.
Note: If the card is not inserted correctly, the phone will not detect the SIM card. Re-orient the card back into the slot if the SIM is not detected.