Why Does My Straight Talk Phone Say Invalid Sim Card. Unable to Make Long Distance Calls Why can I make local calls but not long distance. Turn off your Samsung phone and insert the new SIM Card.
Please note that the information above does not apply if you are. This includes your phone your SIM card packaging and your Straight Talk Unlimited 30-Day service plan card. The iPhone 4 and the iPhone 4S work on a CDMA network so inserting a SIM card could alter your phones settings and stop them from working properly.
You are trying to put your SIM inside a phone that is locked to a different cellphone carrier.
Straight Talk activations do take time. Therefore you should ensure your phone has an active plan with a wireless carrier. Comments Questions and Further Answers. This includes your phone your SIM card packaging and your Straight Talk Unlimited 30-Day service plan card.
