i cannot send or recieve pics? I also cannot send or recieve ringtones.

Hello, i worked for at&t for about a year and i have the perfect answer for your question. because you did switch your service over to another provider, the internet is different. though you do not get charged for this, when sending a picture, it goes through the companies web internet, which if you go from sprint to a different company, that will cause an interference. there is no way to fix this issue unfortunity... that is the only issue with unlocking phones. sometimes people can even text because they got an unlocked phone. at least you can do that!