my galaxy s4 wont reckonise 3network sim card but works for all other networks

[AC Question]

Galaxy s4 says"insert sim card to access network" 3network it wont reckonise but all orhers it does? Help

 

[Rukbat]

Go to 3 and ask them to replace the card.

 

[B. Diddy]

Welcome to Android Central! What's the exact model number of your S4? There's also the possibility that your variant isn't compatible with 3's network bands.