iPhone 16 Pro not turning on

See this --> Force restart iPhone - Apple Support

Make sure to hold the power button in the last step until you see the Apple Logo. It can take more than 15 seconds.

ReidKHesterPh.D. wrote:

My thought was that if enough of us make a stink apple might put some resources into solving this issue.

Making a stink here on this user to user only forum, which Apple doesn't read for feedback is kind of pointless. And assuming most people have such an issue is also not reality. I have two iPhone 16 Pro's (one Pro and an Pro Max) and I know many others who own an iPhone 16 Pro, and none, including me, have any issues.

The best solution for anyone who is having an issue, is to show their phone to Apple at the Genius Bar. Complaining here will really accomplish nothing.

WojBES wrote:

Mine was not shut off or close to dead nor was it even charging. I fell asleep with it on my side table and it was fully charged when I fell asleep. Woke up and it wouldn’t turn on even when I plugged it in. I had to do the hard reset to get it to turn on while it was plugged in or it didn’t work. When it turned on, battery was 80%, the max I charge it to. I literally did nothing different than any other night. It definitely didn’t update because it wasn’t plugged in.

Have you updated your iPhone to iOS 18.2?

Have you talked to Apple Support team via chat, phone call, in person at Apple Retail Store, social media? If you don’t give them the opportunity to inspect and diagnose the iPhone, don’t expect a warranty claim to get to far.

I Phone16 turn on problems.Just to record that my wife (too) came to me with a problem turning on her phone. I found the above post very helpful. I managed to get it to turn on after pushing the vol up then vol down then the power button in quick succession. Holding the power button down for at least 10 seconds.

After 3 attempts the “apple” appeared on the screen. Voila!

Heardy123 wrote:

Hi

Brand new iPhone 16 pro turned off and on Magna charge.woke up this morning would not start!

tried fast volume up/down many times no joy.

Gave it one more go keeping my finger on the start button for much much longer (1 min) voila it came on!

Apple don’t want you turning your iPhone off at night!!!! WHY????

Loyal apple customer ANGRY!!!!!

WHY are you turning the phone off at night to charge it? It's not only not necessary, it's counterproductive. The phone does updates at night while charging. The phone backs up at night while charging. It's not recommended to power the phone off at night. You cannot overcharge an iPhone.

The only thing that worked for me is I kept trying the quick volume up quick volume down buttons, followed by holding down the on button for a long period of time. It finally worked. I’ve set my battery at 90%. I also upgraded to 18.0.1.

Your device may be in dfu-mode(device firmware update). Conmect your device to a mbp. The system may ask you whether it should reset your device, or tell you to download some extra software (also look underneath the running window). Tick the reset button. The system will do the rest. If this does not provide the solution for you, you may have to make an appointment with the genius bar at the nearest apple store.

I had the same issue with my 2 week old iPhone 16 pro max yesterday, nov 25, 2024. It was not until I plugged it into iTunes that it finally turned on. Apple please reach out to customers and advise a fix?

So my iPhone had this issue when I first got it. I was directed to set charging to 80% and use only Apple certified OEM chargers. It worked fine until upgrading to 18.1.1 2 days ago. Went back into lockdown mode and took 45 minutes of attempts on reset. Finally it powered up when I did a reset start on the mag charger. Upon contacting Apple and being moved up to senior level advisor they had me keep charging max at 80% and take screenshots of charging screens before and after as well as confirm times of shutdown and turn on. They are having me forward the details to them for 3 days and engineers at Apple are involved. While the phone does restart normally the past 2 days it is charging to 100% (even though set to 80%) and the charging history is not updating….it still only says the phone was last charged 4 days ago and prior to the 18.1.1 update. It does not show any charging history since then - which is not the case. I would say that Apple knows they have a charging/software/firmware issue and is trying to get it fixed without replacing a lot of hardware. Since this is widespread with the iPhone 16 and not other models I would say there must be a hardware issue….and not on all iPhone 16s but on a growing number. They are to contact me again tomorrow to continue the research. I will update as I learn more!

i had the same problem this morning. ( Iphone 16 pro)

1. had charged it overnight, powered off .
2. with a 25w samsung charger.

In the morning the phone was dead.

Solution : voice up voice down and FOR about 25 SECONDS power on. Dont be afraid for more, it will power on.

Problem solved.

As a first time apple user I'm wondering if it's a warning for some hardware error or some hardware malfunction. Does anyone have an answer to this question?

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I also have a 16 pro max and had the same issue. I had to use iTunes. I plugged it into a desk top computer with iTunes opened and clicked on devices, it found my new pro Max and the iPhone pro max finally started up. Hope that helps

Adding my name to the list of people experiencing this. We have two iPhone 16 Pro Max's in the family. One is experiencing the issue were after a power down, only way to turn on is the reset option. Support did a diagnostic test, nothing showed up. My next option is to reinstall the OS via a Mac. Will attempt that this weekend. This problem occurs once every 1-2 weeks, but if you're not savvy I understand why this would be a problem. Nothing worse than a $1200 brick.

One can do the force start and yes, it eventually turns on. Sometimes after 2-3 tries and sometimes after 40. The point is, WHY should we have to go through this time consuming and frustrating endeavor? Apple Store, the first time I went in a month ago, acted as though they didn’t know this was a problem. They have all been aware of this since the iPhone 16 was released. Also according to the numerous posts, it is all types of 16 and it doesn’t matter how one transferred data from previous phone or if it’s plugged in to charger or not, they still have this problem if one powers off their phone. Not every time, but one time is too many and Apple needs to fix it or recall these phones! Stop selling them.