No I don't own the shield. An unlocked sim card means you can transfer the sim card from one phone to another. I believe some sim cards are locked to a particular phone. You would need to ask somebody else which carriers have locked sim cards.
No I don't own the shield. An unlocked sim card means you can transfer the sim card from one phone to another. I believe some sim cards are locked to a particular phone. You would need to ask somebody else which carriers have locked sim cards.