Just Two Days After Release, iPhone 18 Pro Users Worldwide Report Sudden Reboots and "Panic Full" Issues

Device Shuts Down and Reboots During Face ID and Apple Wallet Use
"Four Times in a Day" Similar Cases Reported Overseas

Recently, a number of users both in Korea and abroad have reported that some devices of Apple’s newly released iPhone 18 Pro and iPhone 18 Pro Max are experiencing sudden shutdowns and restarts, a phenomenon known as “Panic Full.” In particular, there is attention on the possibility of an early software bug as multiple users have reported repeated issues during Face ID authentication.

On September 20, domestic iPhone user communities and international online forums saw a growing number of shared reports from iPhone 18 Pro and Pro Max users who have experienced unexpected reboots.

“Panic Full” refers to a situation where an iPhone, while operating normally, suddenly freezes or powers off due to a system error before automatically rebooting. When this problem occurs, users may observe an analysis log file starting with “panic-full” in the iPhone’s path: Settings → Privacy & Security → Analytics & Improvements → Analytics Data.

The latest smartphones from Apple, the iPhone 18 Pro and Pro Max, were released on the 18th. Photo by Yonhap News

In Korea, some iPhone 18 Pro users claimed the issue emerged while using features that require Face ID authentication, such as financial applications or photo apps. They reported that repeatedly attempting to authenticate with the Face ID sensor covered led the device to turn off and then restart. Several users added that they were able to recreate the problem by repeating the process multiple times.

Other users stated that “Panic Full” also occurred during the initial setup process or regular app use. IT YouTuber “Juyeon ZUYONI” confirmed that she encountered the same symptom on her own iPhone 18 Pro while investigating user reports.

Similar cases have been reported overseas. In a community dedicated to the iPhone 18 Pro on the US-based Reddit platform, one user posted that within less than 24 hours of purchasing an iPhone 18 Pro Max, the device underwent four forced reboots.

This user claimed that three of the reboots happened during Face ID use, and one occurred while launching Apple Wallet. Although the problem disappeared for a while after resetting Face ID, it reappeared the next day when launching Apple Wallet again. Other iPhone 18 Pro and Pro Max users commented on the post, saying that they had experienced similar symptoms.

This is not the first time that Apple’s new iPhones have faced Panic Full issues immediately after launch. In the iPhone 16 series released in 2024, some users reported their devices suddenly shutting down and restarting. Most of those cases involved the iPhone 16 Pro and Pro Max. Apple later addressed the unexpected restart problem on certain models with the iOS 18.1 update.

Meanwhile, Apple has yet to make an official statement regarding the issues raised by users concerning the iPhone 18 Pro.

This content was produced with the assistance of AI translation services.