My Samsung Note 4 is "not registered to network"

A few days ago my Samsung Note 4 stopped being able to call or use data or anything. It says that the Sim is unregistered even though it works in another phone. I also took a different Sim card in it and the same thing happens. I've already tried rebooting it and I went and manually picked a network operator. I am running out of ideas please help!

Submitted July 01, 2017 at 12:20AM by Billingham9876 http://ift.tt/2ttgac3