Solved! Sprint sim card

[Timloren]

Hello, CAN I USE SPRINT SIM CARD TO MY UNLOCKED IPHONE?

 

[buwish]

Most definitely no. I'm pretty sure that Sprint doesn't use SIM cards, as they use CDMA, not GSM.

 

[Carmon355]

Sprint can use sim cards, but its not a GSM sim card. Remember Sprint bought Nextel which does use sim cards (IDEN network). Either way Buwish is right still wont work.

 

[buwish]

Yes, that's true- forgot about Nextel. But for the the most part, actual name branded Sprint phones do not use SIM cards.