No Sim Card Installed Ios 15. 8901 4103 2704 2160 1642 (or find the latest iccid code above ^^) then reboot the phone. I tried many things like:
If you get an alert that says invalid sim or no sim card installed after ios 15 update, take a look at the following fixes. If there are no numbers, contact apple support. I've installed ios beta 4 on my iphone 11 pro and since then, i lost the signal and i don't have data.
If there are no numbers, contact apple support.
This issue is pretty common and a simple reboot will clear the issue The sim card might have been placed incorrectly. If you are one of the users, here are some solutions that can help you solve cellular data not working on iphone/ipad in ios 15/14. Turn on airplane mode, then go to wifi and turn on wifi again.