I have an older S7 (2016). I purchased an S10e and was going to sell my S7 to a friend. I did a factory reset on the phone. He decided not to go through with it. So the phone has no carrier and no network. It was originally an ATT phone. I would like to use the camera on the phone. When I power it on, with sim card installed and without sim card not installed, the first thing it asks for is to connect to a network. Is there any way around this. Thank you.