03-31-2020 09:28 PM
03-31-2020 10:19 PM
Could be an issue with your phone or the SIM. Have you removed the SIM from your phone and reinserted it? Made sure the contacts on the SIM aren't dirty or damaged? If the problem persists, the next easiest thing to try would be getting a new SIM card.
03-31-2020 10:50 PM
You can also try testing the SIM in another phone if one is available.