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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

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Posted on Jan 17, 2021 4:36 PM

There seem to be more reports of this issue over the past few days; as of now, there's no official response from Apple yet, but it's certainly not normal.


For the most part it seems the phone can function normally after it boots up, although in my case it eventually led to the phone needing to be connected to power before it would boot up. I'm waiting to see what Apple says over the next few days.

1,089 replies

Jan 27, 2021 1:44 AM in response to Razing_N

How many of you find that the phone charges very slowly, along with this flashing logo problem? I use Apple's original 20 watt charger along with Apple's original MagSafe brick. It took 15 minutes to charge the phone from 92% to 95%. My wife also has a 12 Pro without the flash issue. It charges super fast on the same charger.

Jan 27, 2021 5:30 AM in response to Blue-per

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)

Jan 27, 2021 11:01 AM in response to Shawky101

it is frustrating that we still dont know if it is a hardware issue or a software issue. What is even more frustrating is that replacing it doesnt solve the issue. I just want a normal working, expensive iphone 12 pro max!


still got 18 days of my cooldown period with my webshop. Im done with replacing.

Jan 27, 2021 10:32 PM in response to MrMiyamoto

That’s exactly what happened.... It didn’t move anywhere for about an hour while updating to iOS 14,4. Then I made a hard restart, and that’s when I first come across the famous flash before starting. Later in the evening I noticed this, while looking on a white screen... I’m guessing this isn’t my fault and the guarantee will cover it ?

Jan 27, 2021 10:57 PM in response to KL4USK

So your advice, is to not notify them.. But simply return it, and order a new one? I bought though my phone service provider, so i know the drill is to return to one of there shops, and then they have to take in to the service shop, who has to conclude that theres a problem.... I'm worried i'll get a refurbished phone... But have Apple stopped doing this?

Jan 27, 2021 11:05 PM in response to Alex_Wyn

I wouldn’t notify anyone. I’m sure that Apple are already aware of this problem, and working on it. I would take the fastest way to a new phone, and I think in this case will be return it, and then buy a new one. I’m not sure about the refurbished phones.... But I think they stopped, so they will swap to a brand new one. It should be so, if the rules are followed correctly.

Jan 28, 2021 1:25 AM in response to KL4USK

I observe that once the apple logo flash and disappear it is already booting up so dont press the power button again because it will bootup. then I tried recovery mode but no connect itunes will appear on phone its just pure black. but itunes is recognizing the phone in recovery mode. I hope apple will fix this because its not normal.

Apple logo flash at startup

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