Chosen Solution
This started a few days ago, where my phone said no service out of nowhere. Im the only one on my plan that this happened to. i didnt do anything to it at all. I tried everything i can find online to fix it but nothing. I went to my carrier store and they said it was the sim card reader because they tried my sim in another device and it worked. Then while i was there someone came in with the same exact problem and they also had an iphone 7.
Those phones have a Signature Failure, if you understand some basic electronic you can watch this YouTube Video. https://www.youtube.com/watch?v=2T9BVR-o… Make sure that your Phone has IMEI Number on Settings and on Phone App Dialing *#06#, make sure that your phone has moden firmware version, and make sure that your phone is reading the simcard on General –> About -> ICCID No services with Warning Sign Changed it to new housing and now NO SERVICE Can be a Disconnected Antenna or a Micro-Soldering Job.
