IPhone 4s 16gb white factory unlocked
I bought a factory unlocked apple iPhone 4s 16gb white on eBay , it turns on let's me select language and country then goes to wifi or connect thru iTunes , but thru iTunes it says can't activate and neither thru wifi. Says can't activate try again and also a message : please insert SIM card with no pin lock to activate. I didn't have a sim when I received it and seller is very unhelpful! What do I do ? Do I just need to get a sim from sprint or boost ? Since I want to activate this phone on my boost mobile account since I been with them for 5 years. Any suggestions?
iPhone 4S, iOS 5