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

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

Update, I saw there is an update 27.0.1 that literally addresses this issue, so hopefully that's the end of that!

Having the exact same issue, happened at least 4 times.

All Face ID related, on lock screen, in Wallet, in other apps.

iPhone 18 pro max 1tb

Apple aware and I hope the fix is quick or they are going to get a lot of returns. For this from Apple

I have checked the results and I can see that the device diagnostics have passed but as per my resources apple is aware about this issues on the new iPhone 18 Pro Max

The results of the investigation may come in the form of an OS update.

So please take a backup of the device regularly and once new iOS is launched update it immediately.

Jeff Donald wrote:

Hi, if your iPhone 18 Pro Max is within the merchant’s return period, return the device. I run several social media groups with over 40,000 members. No one is reporting this issue.

Actually, Jeff, some have reported this and according to 9to5 Mac, Apple is aware and an update should be coming soon to address this for those it has happened to --> https://9to5mac.com/2026/09/23/apple-iphone-18-pro-rebooting-bug-software-update-fix/

Fide0 wrote:

Hey, so if this is happening and I already updated to the 27.0.1 should I worry about it? Should I return it? I just want to know cause I have a trip outside the us coming this week and I’m gonna need my phone in the best shape possible.

After every iOS update, the first thing I do immediately is Force Restart my iPhone. Do this and see if the issue continues --> Force restart iPhone - Apple Support

Hi, if your iPhone 18 Pro Max is within the merchant’s return period, return the device. I run several social media groups with over 40,000 members. No one is reporting this issue.

Just a guess: When you update to iOS 27 the entire search database must be reindexed, and when that process completes the phone probably needs to restart. If the problem continues contact Apple for hardware support: Contact Apple for support and service - Apple Support

Update : I went to the Apple Store, and after their diagnosis, they said my phone needs to be repaired. This is my second device, and I told them I’m not interested in a refurbished one, which they were offering me. A new one wasn’t available at the time.

They’ve now given me some extra time to exchange it for a new one once it becomes available. I’ll wait 15 days, and then I’ll get a new one.

My brand new iPhone 18 pro max is currently doing the same thing and so is my wife’s phone. Smh. I want to think this is a software issue but when I talk to apple support and they ran a diagnostic my phone failed. So I’ll be returning my phone

The 18 Pro requires an update in day one. Are you sure it didn't simply update automatically?

Apple permits a 14 day return period. If you purchased your iPhone from another merchant, please consult their return policy.

Mine started a constant restart loop during phone transfer got an over heat warning when the phone was only slightly warm and screen started flashing on and off. Was able to wipe the phone and start the process but now it just turns on and off and puts itself into Recovery Mode. I had to go to ATT and have my number put back to my old phone as I could not even use it.

Setup an appointment at Best Buy Saturday 09/19 since they are the closest place to me, and they could not even get diagnostics to run. Had to talk to Sales as we can't put the battery in ready for shipment mode. So they are doing a replacement for my phone. But now I won't get it until 10/13-10/20.

What scares me is I have a second phone coming for my mom in two weeks who lives 2 hours away and if we have the same issues.

Same issue here

iPhone 18 Pro Max 1tb. All updated

has randomly rebooted 4 times in 36 hours. Most of the time I am not doing anything, it is just sitting on my desk/ night stand

appple chat says

Thank you for your patience. As I can check the team is not available on chat

But we can do one thing kindly visit apple.com/store and connect with the team directly on call

not acceptable. Brand new phone. I am not going to Goto an Apple Store. This seems to be a common issue as reported on this thread. Apple better come out with an update quick.

iPhone 18 Pro Max 512gb. I am having the same issue with my device rebooting randomly. I picked up my device yesterday from the Apple Store. Later on that same evening it rebooted me once. Today throughout the day. It has rebooted on me 5 times. I really hope apple fixes this with a software update soon. Picking up my device yesterday was a very long process. I would hate to have to exchange it.

mo_balikci wrote:

I got 2 panic-full where the phone restarted by itself.

first one was timed out on PMGR

second one was SEP Panic

Iphone analytics mean absolutely nothing to humans, uncomfortable sounding words like "panic " may mislead you. Was it simply a software update? What were the build numbers before and after the restart(s)?

Having same issue , been on to apple support today, he assured me that apple engineers are working on it. All my analytics was ok apparently. He advised it was software issue but surely other phones not 18pro would be having this issues if it was software?

Same issue, bought the iP 18PM yesterday, updated out the box to current V27 (also yesterday). Went thru the entire day (without any issues) and literally 20 min before this post it just reboots(same symptoms as previous mentioned by others Black Screen, followed by Apple Boot Logo)

What did I do:

Was in Discord with friends while driving home

Entered home, logged into PC, had to QR Scan a login verification (while still in a active Discord conversation)

Scanned QR Verification

Black Screen

Boot Splash Screen

My iPhone did the same thing at the second day, purchased it yesterday. Did the first update to 28 right away Also, at the first day today, it rebooted one time today!

What did I do?:

I had discord open and was in a active conversation with a colleague

Then opened the phone app to do a QR code login on my PC. As soon as I opened the camera app a second later, the phone just went blank and the boot splash screen Prompted up and the phone rebooted

I’m having the same issue happening to me in Singapore. I got the iPhone 18 pro on 18 Sep and it has crashed unexpectedly 4 times until now. It happened when I was using Face ID or Apple wallet.

I have an appointment with Genius Bar to look into this next week but hoping Apple releases some news and solutions about this by then!

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.

This has happened 18 times since I activated my phone on Friday evening. If nothing comes out by early next week, I think I may return. I hope to stop by an Apple Store this weekend. It is shutting down while I have clients on the phone.

I had the same issue so I returned it. Got Burgundy when I pre-ordered, and now end up having Glacier, because Burgundy is nowhere to be found. My friend’s phone also had the same issue when she tried to use Apple Pay.

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

The same issue with my 18 pro 256gb

The first time it had “panic full” when I tried to give a scan of travel qr code. It rebooted itself unexpectedly. The second was yesterday when I tried to switch on the flashlight and it rebooted again. I literally use it 1 week and no extra work on it. Today I am visiting the store, hope they will help me

My 18 PM hasn’t rebooted during any kind of faceID scanning but randomly when I’ve been scrolling instagram, Facebook , and X. It’s rebooted on me 3 times total. And I am hoping that they get a fix out there quick cause I know it’s going to be a pain in the you know what to get spectrum to replace my device plus most all colors are on back order

"Just a heads-up for anyone using the iPhone 18 Pro Max—mine rebooted itself out of nowhere again this morning. This is already my second unit with the exact same problem! Not happy with this at all. Heading to iCare this afternoon to get it sorted."

Hi, I am having the same issue with iPhone 18 Pro Max. My phone actually just did it now; when my Face ID didn't recognize my face, it just randomly powered off. I am assuming it's a bug or something, considering the phone is new.

I updated my iPhone 11 Pro Max to 27.2 for this reason, 27.1 was not available on the phone. I was on 27.0 before updating. Not only does it still shut off when your using Face ID in different apps but now it shuts off and takes longer to Boot back up. I feel so duped. I want my money back.😩 $1600 and it shuts off at least three times a day

Hey, so if this is happening and I already updated to the 27.0.1 should I worry about it? Should I return it? I just want to know cause I have a trip outside the us coming this week and I’m gonna need my phone in the best shape possible.

same problem i just bought iphone 18 pro max today it restarts 2 times randomly without error

iPhone 18 Pro Max

iOS 27.0 (24A437)

19 Eylül: PSD PANIC ... timed out on PMGR

20 Eylül: SEP Panic [elfour panic] exception.c

I had the same problem yesterday when i went to answer a phone call the phone just rebooted itself. My apple watch s12 also restarted itself on its own.

I am having the same issue. My iPhone 18 Pro and Series 12 watch are both randomly rebooting.

Same thing with me I was about to answer the call and it got restarted and it happened twice this day!!

shall I proceed for a service center?please let me know what I should be doing for this?

I have the same issue. Only happened two times so far and have panic-full logs.

• Iphone 18 pro max 512 gb

• ios 27.0

mine turned off 1 time on september 20th when I was using maps in sos an music at the same time.

I got 2 panic-full where the phone restarted by itself.

first one was timed out on PMGR

second one was SEP Panic

Mine has rebooted in the same way randomly about 4 times. (Siri optimisations had completed).

I'm also getting the same issues Panics twice just for using facetime. My phone got soo hot that it rebooted twice and would not remain on. Random reboots, sounds like hardware issues to me

I'm having the same issues on the 18 pro max. Come Apple I can't wait for the excuse

I already in process to return my second device. Is it device issue or software issue?

My first device was getting restarted and now second one doing same.

That’s actually helpful. I’ve got the phone on release day and it has happened twice on the 19th and today once so far. I’ll keep an eye out but I don’t think it’s hardware issue.

Same problem here. 18pro max, I look down and see the apple logo (reboot) happening randomly. It’s happened about 5 times already. :(

Same problem here, 18 pro max 256gb. restarts unexpectedly maybe once a day.

Is this for the IPhone 18 Pro Max?

If so looks like I have to make a trip down to Apple for these bootlags

Same thing is happening to my brand new iphone 18 pro max. Come on Apple. I purposefully started my phone from scratch to shake all the excess apps, etc and now I deal with this. Annoying.

Did you find out the problem or what did the store offer you?

Exactly the same for me! It’s happening every time I use Apple Pay

This has also been happening to me. Purchased through AT&T. It seems to restart every time I try to use Apple Pay which gave me major anxiety with a line forming behind me 😭😭😭

Same here, rebooting randomly twice for me - iPhone 18 pro max 512 gb, I posted a topic about it. Look like software bugs , worldwide issue. With snapdragon and c2 modems version.

What is the update ? Why aren’t they returning or replacing your phone ?? What did they say ?

Same. My wife’s glacier 256 18 Pro Max has restarted 10 times since launch day purchase.

Sane here 3 random restarts 512gb pro max

I am having the exact same issue and might have to take my phone in. At first I was thinking maybe I was the one pressing the button, at some point the screen freezes or something as well…

same issue i bought 18 pro max 512 gb and i have noticed restarting issue more then 10 times since i received (8 days)

I had this happen a few times since getting it for a few weeks now and it just happened again 3:05am.

The same issue with my 18Pro. I have installed the update right now. We’ll see how that works.