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
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.
Since you still had the issue it's much more likely that you thought you had upgraded to iOS 14.5, but hadn't actually since it was fixed once and for all in iOS 14.5.
Mine as well... got a new Blue iPhone 12 Pro Max 256 on Saturday, Jan 16th and it did this very same thing, so I had it replaced the very next day and the new one did the exact same thing. My wife also got the new Blue iPhone 12 Pro Max but the 128 version. Hers works perfectly like it should normally. So trying to understand what the deal is... I only have maybe 10 days left to decide whether to keep this phone... is apple going to fix this in the next 10 days? I don't want to end up getting stuck with an iPhone 11 or a smaller 12 Pro either. I did hear from someone else that said they swapped out his phone 3 times and the third one worked fine... so that has me worried about this being a possible manufacturing problem.
If Apple or anyone has any new info on this please let me know before my time runs out.
Thanks
I personally think it is just about one batch of iphone 12 pro (max) phones with the problem.
I got a iphone 12 pro with preinstalled ios 14.2 -> no issue
I got 2 iphone 12 pro max's with preinstalled ios 14.3 -> issue
It’s odd because for all the cases that have been reported here, there must be many more that have been reported to the Genius Bars. I decided to wait it out because it did lead to other problems, such as the inability to reset the phone or to turn it on without connecting it to power.
I’m also curious about the phone you returned to Verizon, because the ones I tried, no form of restore / update / revive would eliminate the single flash logo on boot. I even went to install iOS 14.4 beta 2, with no change.
Anyway, will wait it out, also with the hope that someone at Apple will eventually take action.
You can use this link to check factory and production date.
Mine was made in F2 (Foxconn) and 52 Week (December) - has issue
My Friend's was made in same factory F2 (Foxconn) and 44 Week (November) - no issue.
http://www.chipmunk.nl/cgi-fast/applemodel.cgi
I spoke to apple support advisors today for over 2hrs and they seem to have started to become aware of this issue now.
They also think this is more software related than hardware. In any case any hardware related issue, our phones will be replaced if so.
I received my replacement yesterday and it has this problem. These are my observations:
Previous phone: 12 Pro Max, F2 week 51. Came with 14.2 and did not have this issue.
Current phone: 12 Pro Max, F2 week 52. Came with 14.3 and has this issue.
They stopped signing 14.2 around this time, which might be why they changed to 14.3 as preinstalled from week 51 to 52.
Got my third unit! Yes it was replaced twice already. And yes, it still has the same issue!! Talked to apply support again and was advised again to visit our local apple authorized service center.
asked them if it can be fixed by the next update. And they have no idea of the issue yet.
How frustrating.
True that. Let's hope Apple fixes this soon. It's really frustrating and disheartening at the same that you have waited for something and when you finally buy it, duh!!
Additionally, I had asked the Apple care guy that my 6s never showed something like this. I was explained that this has been introduced in the iPhone 12 models.....
Hi. I’m having the same annoying issue IN 3 iPhone 12 Pro Max. This is the 3rd set with the same issue. I went to the Apple store (in Singapore) and they don’t even know. They took a video of the faulty procedure and sent to Apple IT department, and I’m waiting for their results, still using my 3rd faulty expensive iPhone 12 Pro Max.
Thinking about getting a Huawei instead.
I miss Steve Jobs, Apple is not the same since he passed away.
Its not only booting issue , its entire feedback screen issue .
when device in recovery mode laptop and cable logo is not showing as well as if battery drain the battery and cable logo as well not showing in the feedback screen.
after replacing 6 devices i find out that this issue happens only after 1st full charge.100%
Just upgraded to iOS 14.4 and if anything the problem has gotten worse. This is my second iPhone 12 Pro after I returned the first believing it was a defective handset but I’m getting the exact same problem.
When I attempt to switch the phone on I get a bright flash of the apple logo and then the screen goes black again. I have to try several times before I’m able to power up the device successfully.
I really hope this is down to software/firmware and apple can fix it ASAP.
My Fiancé and I both got the new IPhone 12 Pro and we both are having this exact same problem!!! It’s annoying. I have been both to AT&T and Best Buy Geek Squard (as they are authorized now to diagnose iPhones. They couldn’t find anything wrong with the phones using apples diagnostic program. They also did a full removal of the software and firmware and the problem still exists... they said now we have to go to apple directly. But since everyone is having this issue it must be an IOS problem! Apple please get back to us and fix this problem. A $1100 phone shouldn’t be doing this.
I have the same issue and tried to solve it by restore and set as new iPhone but problem still occurs. So I tried to contact apple support and they said that many people reported that. I have no idea what they will do to solve this problem since they say that apple genius bar will decide if this is the problem or not.
I've just installed iOS 14.4 on my Iphone 12 (sold with iOS 14.3) and I still have the strange behavior when switching on.
During Even during installation the logo with the loading bar was very bright and subsequently, after the screen went off for a few seconds, the logo reappeared at the "standard" brightness.
Hoping that a future update can remove this glitch, it is very frustrating to have these behaviors on such expensive terminals.
In daily use the phone is perfect, I have not noticed battery drain or slow charging (I have never used the magsafe, but I installed a cover that supports it)
Apple logo flash at startup
