Apple iPhone 8 Plus 64 GB Black

It is showing a SIM FAILURE error. This could be a quick software fix or a reader repair, but I haven't had time to look into it. Works great on Wi-Fi Battery Health: 78%. Everything else (Touch ID, cameras, screen) is 100% functional.There is a small,noticeable crack on the back glass, but it doesn't affect the feel or the use of the phone