how to update cellular data + keep getting no service / searching
i woke up this morning and got a message that my cellular data failed to update. i tried to go to settings -> about and nothing popped up (waited for the update to show). now everyone i insert any type of sim card it says searching for a while and ends of saying no service (with a triangle symbol). it’s not the sim card that’s the problem because it works on other phones. i also tried putting it on air plane mode and restarted my phone. if it matters i have an iphone 7 and ios 12.3.1. please let me know as soon as possible if there are any solutions, thank you!