Loud crackling noise then iPhone 12 shut off

I was scrolling through tiktok at a low volume when my phone randomly made a loud cracking sound and then shut off. It almost sounded like an electrical short. Phone rebooted on its own and seems fine. Very strange for a brand new Apple iPhone 12....

iPhone 12, iOS 14

Posted on Nov 28, 2020 9:25 PM

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Question marked as Best reply

Posted on Aug 22, 2021 4:24 PM

So what I've determined is we've all had exactly the same issue, no one knows what it is, and Apple hasn't replied here but I went ahead and did a support chat and here's what I got:


  • Okay, please be assured that your iPhone is secured and the iOS that you have on your iPhone has the best security in the market.
  • Let me explain a device restart can be caused by the App that you are using at that time or any system issue.
  • All the discussion and the feedback are checked by the Apple engineers on a regular basis. Also any issue that is occurring or needs to be checked is also escalated to the team so they are aware of any system issue and work on it to resolve it.


That's as far as I got.

215 replies

Jul 25, 2022 10:51 AM in response to M_Stoff

This just happened to me. iPhone 12 Pro Max using the Amazon app and suddenly a LOUD crackle noise (**** near dropped the phone!) and pinkish/purple static across the top of the screen and then it went black. After a bit the Apple logo came up (that was a relief!). Seems okay now. There is an entry for it in the Settings/Privacy/Analytics & Improvements/Analytics data.

Jul 29, 2022 1:23 PM in response to M_Stoff

Exact same thing happens to me I was also on tik tok scrolling when my phone cracked then shut off and little confetti like purple things came in my screen near the charging port side of my phone I have a iPhone 12 and have had it for about a year and months. I can’t help but think this is due to my storage being full but I’m not sure.

Jul 30, 2022 9:12 PM in response to M_Stoff

This is the second iPhone 12 mini I’ve had but the first time this has happened. I was on the phone with my partner and playing sudoku. Phone not hot. Phone on charger. About to go to bed, went to speak, phone made the LOUD noise, gave me multicolored confetti glitches, froze, then shut off. Honestly sounded like the hacking sound effects in movies. Hey Apple, funny how you haven’t answered this thread.

Aug 4, 2022 2:29 PM in response to M_Stoff

I Phone 12 pro

i had the same issue was scrolling through Facebook and you get sub videos from Tim Tok usually 3-4, the video if it makes any details was of a guy opening a basket with an unsustainable lizard in it then my phone made a fizzle electrocution sound and then the video had a cracked blue glaze and the phone when blank and turned off

I am not entirely sure it was a technical fault rather than someone gaining or hacking my phone love to hear from Apple what it is


Aug 12, 2022 7:32 AM in response to guylaine80

Spoke to Apple great news is they ran a diagnostic over the phone no need to visit now registered a case have a case number just in case!

The diagnostic came showed the phone is ok thank god.

I did get the feeling even though they were surprised at the issue it’s not the first time they heard of this problem they do know this is happening I kept pointing them to this site to read some of the peoples comment but seem to ignore me

Loud crackling noise then iPhone 12 shut off

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