Apple Stores Get New Diagnostic Tool for iPhones With Unexpected Restart Issues

Apple Stores and Apple Authorized Service Providers have a new tool in their arsenal to determine if a customer's iPhone is unexpectedly restarting.

iPhone Apple Logo Boot
When a customer with an iPhone 11 or newer indicates their device is unexpectedly restarting, Apple Stores and Apple Authorized Service Providers can run a new "System Stability" diagnostic tool, which will evaluate the device's analytics logs to determine if multiple unexpected restarts have taken place over the previous 14 days.

If the diagnostic determines unexpected restarts have taken place, Apple advises technicians to proceed with a hardware repair, according to an internal memo obtained by MacRumors. If the diagnostic passes, Apple advises technicians to direct the customer to a new support document with hardware and software troubleshooting tips.

The new diagnostic tool provides Apple technicians with a faster way to determine if a customer's iPhone is unexpectedly restarting compared to existing methods, such as restoring the device or manually reviewing analytics logs for kernel panics.

The new "System Stability" diagnostic suite is part of Apple Service Toolkit 2.

Popular Stories

Apple Glass

Apple Smart Glasses: Everything We Know So Far

Wednesday May 21, 2025 8:21 am PDT by
Google made waves yesterday by showcasing a set of lightweight smart glasses featuring deep Gemini integration and an optional in-lens display. The demo has reignited interest in Apple's own smart glasses project, which has been the subject of rumors for nearly a decade. Here's a recap of where things stand. Current Development Status Apple is actively working on new chips specifically...
iPhone 17 Air Pastel Feature

iPhone 17 Air Battery Capacity and Weight Allegedly Revealed

Monday May 19, 2025 2:22 am PDT by
Apple is expected to launch an all-new ultra-thin iPhone 17 Air later this year, and while there have been plenty of rumors about the camera's overall design and thinness, we haven't heard any details about the device's weight and battery capacity until now. According to the leaker going by the account name "yeux1122" on the Korean-langauge Naver blog, the 6.6-inch iPhone 17 Air has a weight ...
Apple CarPlay Ultra instrument cluster themes 01

Apple's CarPlay Ultra Is Here – Does Your iPhone Support It?

Thursday May 15, 2025 5:17 am PDT by
Apple's recently announced CarPlay Ultra promises a deeply integrated in-car experience, but not all iPhone users will be able to take advantage of the new feature. According to Apple's press release, CarPlay Ultra requires an iPhone 12 or later running iOS 18.5 or later. This means if you're using an iPhone 11, iPhone XR, or any older model, you'll need to upgrade your device to access...
WWDC 2025 Banner

Apple Announces WWDC 2025 Schedule, Including Keynote Time

Tuesday May 20, 2025 8:13 am PDT by
Apple today announced a more detailed schedule for its annual developers conference WWDC, which runs from June 9 through June 13. The schedule confirms that Apple's keynote will begin on Monday, June 9 at 10 a.m. Pacific Time, with a live stream to be available on Apple.com, in the Apple TV app, and on YouTube. During the keynote, Apple is expected to announce iOS 19, iPadOS 19, macOS 16,...
macOS 16 visionOS Inspired Feature 1

macOS 16: Everything We Know So Far

Tuesday May 20, 2025 7:31 am PDT by
The Worldwide Developers Conference (WWDC), Apple's annual developer and software-oriented event, is less than three weeks away. We haven't heard a great deal about macOS 16 ahead of its announcement this year, so we could be in for some major surprises when June 9 rolls around. Here's what we know so far about the next major update to Apple's Mac operating system. macOS 16 Name? Every year ...
Apple Glasses Purple Feature

Apple Smart Glasses Launching in 2026

Thursday May 22, 2025 12:22 pm PDT by
Apple is planning to launch a set of smart glasses by the end of 2026, reports Bloomberg. The glasses will be comparable to the Meta Ray-Bans and the Android XR glasses that Google showed off earlier this week. Apple's smart glasses are expected to include cameras, microphones, and AI capabilities, much like the Meta Ray-Bans. The glasses will be able to take photos, record video, provide...
maxresdefault

OpenAI Buys Jony Ive's AI Startup to 'Completely Reimagine What It Means to Use a Computer'

Wednesday May 21, 2025 10:27 am PDT by
OpenAI is acquiring io, the hardware-based AI startup co-created by Jony Ive, OpenAI announced today. Ive has been working with OpenAI CEO Sam Altman on io for two years, and the duo expects to develop a family of AI devices. In a video shared by OpenAI, Altman and Ive outlined their partnership and what they expect to create as a result of the merger. "I have a growing sense that everything ...
Apple CarPlay Ultra instrument cluster themes 01

Apple's 'CarPlay Ultra' Experience Now Available

Thursday May 15, 2025 5:07 am PDT by
Apple today announced that its next-generation CarPlay experience, now dubbed "CarPlay Ultra" begins rolling out today, starting with Aston Martin vehicles. Subscribe to the MacRumors YouTube channel for more videos. CarPlay Ultra is now available with new Aston Martin vehicle orders in the U.S. and Canada. It will also be available for existing models that feature the brand's next-generation ...

Top Rated Comments

dumastudetto Avatar
37 months ago
One of the big reasons I'm so proud to be an Apple customer is their unwavering commitment to serving the needs of all us - be it the production of industry-leading products, software updates, best-in-class hardware support, expert repair, and going the extra mile for each and every one of us.
Score: 22 Votes (Like | Disagree)
iAFC Avatar
37 months ago

It might just be a coincidence but earlier this week I started getting random restarts on my iPhone 13 Pro running 15.1.1
15.1.1? Why not update it to 15.6?
Score: 6 Votes (Like | Disagree)
planteater Avatar
37 months ago

Holy crap, I was JUST in the Apple Store yesterday and a customer was complaining about his iPhone restarting. I was there to get replacement AirPods and this guy kept butting into my conversation with the Genius. I hope he got his issue resolved.
If he was butting into my conversations, I’d wish him happy reboots.
Score: 5 Votes (Like | Disagree)
senttoschool Avatar
37 months ago
This is groundbreaking tech. Only took Apple 15 years to develop this.


const unexpectedRestarts = select * from logs where restart = 'Unexpected'

If (unexpectedRestarts.length > 0) {
print("Need repair")
}
Score: 5 Votes (Like | Disagree)
gramateur Avatar
37 months ago

I haven't had restart issues, but my 13 Pro has been very buggy since I got it. Maybe 5% of the time when opening the camera from the lock screen, the whole thing freezes and needs to be restarted. Same goes for making phone calls, and a few other strange behaviors.

Anyone had luck resolving these?
I used to work for AppleCare. If the following doesn’t work then call AppleCare (it’s free) and request a remote diagnostic and go from there. https://support.apple.com/en-us/HT201252
Score: 2 Votes (Like | Disagree)
Aaronp613 Avatar
37 months ago
It might just be a coincidence but earlier this week I started getting random restarts on my iPhone 13 Pro running 15.1.1
Score: 2 Votes (Like | Disagree)