iPhone automatically makes calls in the middle of the night, Apple responds on its official website.

On March 26th, Apple's official website recently released information in response to the issue of iPhones automatically making calls in the middle of the night, which was previously reported by consumers.

Apple stated that a recent issue has affected iPhone models running iOS 26 and using dual SIM cards. This issue may have caused a small number of users' iPhones to make unexpected outgoing calls. You can update your iPhone to iOS 26.3 or a later version to resolve this problem.

The official described in detail that if you use dual SIM cards on an iPhone running iOS 26, when you tap a phone number, the iPhone will display a dialog box prompting you to select the SIM card to use. If you don't make a selection and leave the device idle for a long time, such as when charging at night, it may cause the system to call the phone number you previously tapped. This behavior is caused by a software issue, which has been resolved in iOS 26.3.

According to the Urban Express, a netizen recently shared their early - morning experience. "I was sound asleep when I was suddenly woken up by the background music of a phone call and the voice saying 'The user you dialed is not available at the moment'. When I got up, I found that my phone was making a call on its own. I was really scared. I immediately checked on social platforms and found that quite a few people had the same problem. Some people suggested upgrading the system. Who can understand being woken up in the middle of the night and then having to upgrade the system?"

On social platforms, there are many other netizens reporting similar experiences. One netizen said, "My Apple phone suddenly started calling someone else in the middle of the night and the call lasted for 47 minutes. It woke me up!"

After investigation, it was found that as early as last November, many users reported on social platforms that after updating their iPhones to iOS 26.0.1, their phones automatically made calls to strangers in the middle of the night when locked. The called parties included couriers and merchant customer service. Similar problems also occurred on some older iPhone models that had not been updated to the latest system.

iOS 26 is a mobile operating system released by Apple at the Global Developers Conference on June 10, 2025. It uses a year - based naming system instead of the traditional version number and is compatible with the iPhone 11 series, iPhone SE 2 and subsequent models. This system introduces the "Liquid Glass" design language and reconstructs the home screen, lock screen, and native application interfaces.

According to data released by the official in February this year, 74% of iPhone models released in the past four years have been upgraded to iOS 26, 20% are still using iOS 18, and 6% are running earlier versions of the system. In comparison, 127 days after the launch of iOS 18, the penetration rate of the models at that time reached 76%; 139 days after the launch of iOS 17, the penetration rate of the models at that time was also 76%. If all iPhone models are included, the current penetration rate of iOS 26 is 66%, slightly lower than the 68% of iOS 18 at the same stage, and the same as the 66% of iOS 17 at the same stage.

Some analysts said that there are objective reasons for the slightly lower penetration rate of iOS 26. This system no longer supports the iPhone XS, iPhone XS Max, and iPhone XR. These three models have been classified as obsolete products and can only stay on the old system, while iOS 18 continues to support previous - generation models comprehensively. This difference directly affects the overall update rate. In addition, some users are cautious about upgrading due to concerns about battery life and performance degradation, which also indirectly slows down the update pace.

This article is from "Jiemian News", author: Chen Xiaotong. It is published by 36Kr with permission.