Recently, Apple launched iOS 172.Version 1, which aims to solve the battery life problem of the iPhone 15 series. However, this update seems to have caused more trouble, with many users reporting that their phones are not connecting to the cellular network properly after upgrading.
According to a post from Apple's support community, this issue mainly affects users of the iPhone 15 series, who are installing iOS 172.1 After that, you find that your phone can't receive or make calls**, and you can't use mobile data to surf the Internet. The post already has more than 383 people saying that they are experiencing the same problem and that changing the SIM card or contacting the carrier has helped.
According to Bismuth Reading Network, at present, Apple has not officially made any response or solution to this problem. In addition to cellular connectivity issues, some users have also reported that iOS 172.1 Makes their iPhone overheated, and even affects the performance and stability.
If you are a user of the iPhone 15 series and have not upgraded to iOS 17 yet2.1. We recommend that you do not install this update for the time being to avoid unnecessary trouble. If you have already upgraded, then you can try to revert to iOS 172 Or wait for Apple to release a new fixed version.