https://macreports.com/wp-content/uploads/2017/03/your-carrier-charge-imessage.jpg https://macreports.com/wp-content/uploads/2017/03/your-carri... This shows u

https://macreports.com/wp-content/uploads/2017/03/your-carrier-charge-imessage.jpg https://macreports.com/wp-content/uploads/2017/03/your-carri... This shows up when you insert a sim that’s not activated with iMessage. Maybe it depends on your region. In my country you really have to pay because the activation process sends an sms message.