iPhone 18 Pro Max unexpectedly restarts with rst wdog in ResetCounter logs

I bought a new iPhone 18 Pro Max directly from Apple. It is running iOS 27.0.


On September 19, 2026, the iPhone restarted by itself twice. In both cases, the screen first went black, then the Apple logo appeared, and the phone started normally.


The times were:

- 10:10 AM

- 7:28 PM


I found two ResetCounter analytics logs. Both show:

- Reset count: 1

- Boot failure count: 0

- rst wdog

- reset_in_1


The first log also shows reset_in_1 timeout and dblclick_timeout. There are no panic-full logs so far.


Could this be an iOS 27 software issue, or does it suggest a hardware problem? Should I monitor it for a few days or contact Apple for diagnostics?


Posted on Sep 19, 2026 10:31 AM

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Question marked as Top-ranking reply

Posted on Sep 20, 2026 10:58 AM

Apple permits a 14 day return period. Consult the return policy of the company you purchased your iPhone from.


You need to have Apple perform diagnostics on your iPhone. It can be done in person at an Apple Retail Store or at an Apple Authorized Service Provider. You can also contact Apple Support and request remote diagnostics.


If you’re in the US, please call  1-800-MY-APPLE, or outside the US, consult the support articles below. In Canada, call 1-800-263-3394.


Contact Apple for support and service - Apple Support


Genius Bar Reservation and Apple Support Options - Apple


Explore Service Locations

38 replies

Sep 23, 2026 1:27 AM in response to netro3

I also purchased iPhone 18 pro 256 GB burgundy via pre- order on the opening day form Apple Store Sydney. The device was experiencing sudden restarting twice and I informed apple and I was refunded (23/09/26). I lost money which I spent to buy the screen protector and phone cover 🥲.


Apple needs to address this issue pls . Honestly I am scared to buy another device.

Sep 23, 2026 8:35 PM in response to netro3

Spend $1600 on a phone three days later, it’s having issues. I had a Screen protector ordered, the second day, and spent $45 on it, and now when I get a hold of customer service, they refuse to pay for the screen protector. I’ve spent thousands of dollars on Apple products with them. And they’re losing me as a customer over $45 for selling me a defective product out the box

never buying a Apple product or letting anybody else buy one that I know of their customer service is the worst

iPhone 18 Pro Max unexpectedly restarts with rst wdog in ResetCounter logs

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