hi, I bought the R-SIM 7+ in order to unlock my iphone 4 under IOS 6.1.3. However, because of a bad manipulation, in the carrier menu when it has been asked to select the network in order to unlock it, I choose the wrong network, I locked the network that I am using (which is SFR). I want to go back and to select the network orange in order to block it. But there is no carrier menu anymore in my iphone. I hope that I didn't lock my phone and need to change the network. Thank you for your responses.