Apple logo flash at startup

New iPhone 12 Pro. At startup the Apple logo flashes super bright for a brief second then the screen goes dark for about 10 seconds before the Apple Logo re appears at normal brightness to finish the startup. I’ve had iPhones for years and never had the logo turn on and then off during startup. Is that Normal for the 12?

iPhone 12 Pro, iOS 14

Posted on Jan 14, 2021 6:41 PM

Reply
Question marked as Top-ranking reply

Posted on Jan 30, 2021 5:37 AM

After more than two weeks, I think that it is time to sum up the situation: the "flashing Apple logo" issue described by Blue-per does not occur when we unbox and boot the iPhone 12 (mini)/12 Pro (Max) for the first time, it occurs when the iPhone is already set up.

In most cases the phone performs normally after it boots up. Some users found hardware problems when using their new iPhone (phone needing to be connected to power in order to boot up, screen burn-in, battery charges very slowly, camera not taking HDR photos, etc.).

In my opinion those problems are not related with the flashing logo at startup, because they are very different from each other and they are isolated cases. They are just coincidences.

That does not mean that the flashing logo is not an issue: there are iPhone 12/12 Pro which boots with the (classic) steady Apple logo and some iPhone 12/12 Pro that do not, so it is obviously not a normal thing. It is not a "new feature" or "expected behavior".


After reading other answers on the forum, we can deduce that the issue does not occur on iPhone 12/12 Pro that were shipped with iOS 14.1 or with iOS 14.2 pre-installed, it (mainly) occurs on iPhone 12/12 Pro shipped in January with iOS 14.3 pre-installed. As a matter of fact a lot of people returned the device during the last weeks and got a new one with the same problem.

Now, we suppose (and hope) that the issue is part of iOS 14.3 and not in the hardware of the phone. In this case Apple should be able to fix it with an update, maybe already with a sub-dot-release (iOS 14.4.X) or later with iOS 14.5. There are some comments in favor of that supposition too, where people noticed that issue after updating from iOS 14.2 to iOS 14.3.


On the other hand, it is strange that (most) iPhones who updated the operating system from 14.2 to 14.3 did not experience the issue. And it is even stranger that I read a reply from a user who encountered the problem already on iOS 14.2. Those facts contradict our supposition above, and maybe the flashing logo has nothing to do with iOS 14.3.


I am sure a lot of people have this problem too; they do not notice it, because nowadays we do not shutdown and restart our phones very often. And even if they do that, they (probably) don't keep looking at the boot screen for issues.

It is very hard for us to guess if it is a software or a hardware problem. Only Apple can give us an official answer, and in order to solve the problem as soon as possible I ask you to continue upvoting this and other similar posts (clicking on "I have this question too"), commenting if you have some news from Apple and reporting the case to the Apple Support.

1,089 replies

Feb 8, 2021 11:06 PM in response to Chrisckv

I've seen this fluctuate on phones before, usually right after setting them up, as there's a lot of indexing that takes place in the background (e.g. photos and music).


Perhaps take a look at the Photos app, see if it's completed syncing with iCloud? Otherwise, you may need to contact Apple Support directly, and have them take a look at the analytics to see where the issue is.

Feb 22, 2021 9:03 AM in response to Greeneyeddi01

I've got some news...

To start with, it’s most definitely not a network provider issue as I live in the UK and not on Verizon or AT&T etc - just clearing things up.

And I reckon it’s a software or iOS version issue.

But wait, it gets more interesting!

I got help from an Apple support agent over the weekend. We went through the rigmarole of uninstalling my current iOS version and installing the latest version. He informed me that a short apple logo flash on startup was normal for the latest version of iOS - and was nothing to be concerned about! He went on to say a lot of people won’t notice this because not everyone reset or restart their devices often.

Expectedly, this explanation left me more confused than before. But as long as the device performance isn’t affected, I’ll carry on using my phone.

Mar 13, 2021 7:20 AM in response to Levenson06

Levenson06 wrote:

me too ... I have to actually hit the power button twice ... the first time the logo briefly flashes and then it doesn’t start ... then I hit it again and it boots.

That means that your phone has some other problem. If the Apple logo just appears twice and the phone then starts and operates normally (perhaps up to 30 seconds later) without further intervention then it is working normally. If it doesn’t start on its own after pressing the Side button just once and waiting long enough there is some other problem that is unrelated to the Apple logo appearing twice.

Mar 14, 2021 1:50 AM in response to Greeneyeddi01

I previously wrote that I went in to get a upgrade, and I wanted to get the iPhone 12. So I went in and got my iPhone 12, set it up and after everything was set up, I got the same thing, the apple logo flash. I took the phone back, got a new phone set it up, and it did the same thing and I took it back for a second time and got a new phone for the third time and I set the phone up for the third time and it did the same thing. I decide to leave it there because other than the flashing logo the phone works great. Now my problem is, not all of the people that post or discuss is from the US. I am from South Africa and the people here is full of ___ when it comes to returning a phone. I did it 3 times and after the third time I thought ____this I’ll wait if there’s a fix coming out then I’ll update. I mean, I had 3 phones that did exactly the same thing.

Mar 16, 2021 8:24 AM in response to Peterisil

To be clear, if you hold the Side button until the first Apple logo appears, and then release it, and the phone starts normally 15-30 seconds later without any further action on your part your phone is working as designed, and this is just an annoying glitch in the boot-up process. If the phone has any other symptoms they should be reported to Apple using the Get Support link at the top of this page. Any other issues are unrelated to the double-logo appearance, and should be dealt with separately.


Pressing the Side button several times won’t cause any issues, but it’s the equivalent of pressing the same floor button in an elevator several times.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Apple logo flash at startup

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.