iPhone 4S bought "unlocked." Worked with Straight Talk, not in France.
So I've had my iPhone 4S for a while and never had problems. Brought it to Straight Talk over a year ago after buying it unlocked on Amazon. Now I'm studying abroad for 6 months and I decided to buy a new SIM card and just use it here. So I bought a SIM card from Orange today. But... it says my phone doesn't support the SIM. Why?! It's supposed to be unlocked. Can anybody help me here? I'd rather be able to use my iPhone in France than buy a temp phone.
iPhone 4S, iOS 7.0.4