The Cupertino company has been iOS 12.1; but at the beginning, the third version was released. I mean, iOS 12.1.3. And in all of them, some users have claimed connectivity problems which affected the WiFito the mobile data or both. Now this has just been released iOS 12.1.3, again the problems recur to that, we do not know why, Apple is failing to end despite the various updates.
The newly deployed update, iOS 12.1.3, is really just a review of iOS 12.1; that is, this firmware should only provide the solution to problems that were previously recognized and detected. In fact, the Cupertino company specifies in the change log that it is an update with bug fixes affected devices iPhone and iPad. But again, some users are warning that, at the top of the screen, the message appears & # 39; No service & # 39;. This, as you already know, means that the device it does not connect to 4G, 3G or 2G mobile networks.
What to do if you have upgraded your iPhone to iOS 12.1.3 and the message "No service" appears, do not connect to 4G, 3G or 2G mobile networks
At the time Apple did not recognize the problem or offered a solution in an official way; most users are not being used to enable Airplane mode to force the device to reconnect. What might work, as explained in the Apple support forums by some of the affected users, is restart the device, eject and reinsert the SIM card or reset network settings settings.
If all this does not work, another option we have is install iOS 12.2 beta. The problem? That being a beta, in tests, can give other problems in our smartphone. So at the moment, it's best to try the possible solutions we mentioned earlier and wait for Apple releases another update which should arrive later this week.