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arfprince
User level: Level 1 (4 points)

iPhone 11 Pro Max Screen Flickering After Updating to iOS 27 – Will a Future Update Fix

Hi everyone,


I’m experiencing an annoying screen flickering issue on my iPhone 11 Pro Max after updating to the official release of iOS 27.


Interestingly, I was previously using the iOS 27 beta version, but I never experienced this issue during the beta period. The problem started only after installing the official release.


The screen randomly flickers, with its brightness suddenly increasing and decreasing. It happens most frequently while using Instagram, but it isn’t necessarily limited to that app.


I initially thought the issue would be resolved with the latest iOS 27.2 update, but unfortunately, the problem still persists. I’ve also tried force restarting my iPhone, but that hasn’t helped.


My questions are:


  1. Has anyone else experienced similar screen flickering issues after an iOS update, particularly on the iPhone 11 Pro Max?
  2. If you’ve experienced this issue in a previous iOS version, did a subsequent software update eventually fix it?



Thank You.

Posted on Nov 3, 2026 3:14 PM

4 replies

tillu_code
User level: Level 4 (2,112 points)

Nov 4, 2026 8:57 PM in response to arfprince

Try Settings > Display & Brightness and turn off True Tone, then Settings > Accessibility > Display & Text Size and turn off Auto-Brightness to see if the flicker stops. Also restart and check for a newer iOS 27 update.

lobsterghost1
User level: Level 10 (233,174 points)

Nov 3, 2026 3:25 PM in response to arfprince

When was the last time you Force Restarted your iPhone? I do this after EVERY iOS update --> https://support.apple.com/guide/iphone/force-restart-iphone-iph8903c3ee6/ios


iOS updates don't cause issues with the screens on iPhones. We'd be seeing a flood of posts if this was a common issue and we most definitely aren't.


This makes me concerned that you may have a hardware issue with your phone, which you know is up to 7 years old at this point. You may have a failing battery and to know that, open Settings > Battery > Battery Health - if it is 80% or lower (which wouldn't unusual on an iPhone which could be 7 years old) the battery is failing and when batteries fail, they cause issues.


If it's not your battery and honestly, if you've never had the battery replaced, I'd be VERY surprised if it is healthy, then you might have a logic board issue, which may be heading to total failure. You'd need to have the phone tested at your Apple Store Genius Bar if the logic board is failling --> https://www.apple.com/retail/geniusbar/


You'd honestly need to think about whether it makes sense to spend money on an up to 7 year old iPhone at this point. Personally, I wouldn't. I would invest in a new iPhone if it was me. But that's a decision you need to make.

lobsterghost1
User level: Level 10 (233,174 points)

Nov 4, 2026 9:04 PM in response to arfprince

arfprince wrote:
Well, the battery has never been replaced, and it’s true that its maximum capacity is quite low (69%).
However, I can assure you that I never experienced this issue before installing the official iOS update!
What’s even more surprising is that this glitching issue mainly occurs while using Instagram, Facebook, or other third-party apps. I’ve never experienced it while using Apple’s built-in system apps.
By the way, I tried force restarting my iPhone just yesterday!

At 69%, your battery isn't just depleted, it is SEVERELY depleted. The update didn't cause this, but the stress of the update, pushed your battery further into degradation. If you don't immediately either schedule a battery replacement at your Apple Store Genius Bar or actual Apple Authorized Service Provide, even worse things can happen. Such as severely depleted batteries can swell, destroying the phone beyond repair and turning it into a fire hazard. This isn't something you can put off. Either get the battery replaced (About $100) or put that money towards a new iPhone (this would be my choice if I was in your position).



arfprince Author
User level: Level 1 (4 points)

Nov 4, 2026 10:05 AM in response to lobsterghost1

Well, the battery has never been replaced, and it’s true that its maximum capacity is quite low (69%).


However, I can assure you that I never experienced this issue before installing the official iOS update!


What’s even more surprising is that this glitching issue mainly occurs while using Instagram, Facebook, or other third-party apps. I’ve never experienced it while using Apple’s built-in system apps.


By the way, I tried force restarting my iPhone just yesterday!

Originally posted at discussions.apple.com/thread/256388417