User level: Level 1 (6 points)After updating to iOS 27, my iPhone 13 screen flickers randomly. Its flickers in gray and black colour and happens randomly. Anyone else facing the same issue?
Posted on Sep 16, 2026 11:14 PM
User level: Level 10 (212,396 points)Sep 17, 2026 12:59 AM in response to hridip
It's estimated that the adaptation and reindexing process for the new iOS 27 will take approximately 3-4 days to complete.
That said, we always recommend performing these steps:
A) Try a "forced" restart of your device using these instructions: Put it on charge for at least half an hour, then, keeping it plugged in, use these gestures:
In rapid sequence, press and quickly release the volume up button, press and quickly release the volume down button, then press and hold the side (power) button. Only when the Apple logo appears (it might take 10-20 seconds), release that button (ignore all other screens that might appear, the one with the "slider" to turn the device off included).
B) If you can, check your battery status in Settings>Battery>Battery Health & Charging>Maximum capacity. If it is close to 83-80%, have it replaced as soon as possible, since it might have unpredictable behavior.
C) If the issue persists, something could have gone wrong during the latest update procedure.
I would try to install a fresh copy of iOS/iPadOS (the latest available/supported by your device model). To do this, create a full backup of your iPhone/iPad (1), then restore it to factory settings (you need a computer to perform this step) and, in the end, set it up as new (2).
When done, restore data from your previously made backup (3).
Follow the instructions provided in these support articles:
(1) How to back up your iPhone, iPad, and iPod touch – Apple Support
(2) Restore your iPhone, iPad, or iPod to factory settings – Apple Support
(3) Restore your iPhone, iPad, or iPod touch from a backup
If the issue still persists, it might be a hardware (screen? other internal component?) failure, and I suggest that you contact Apple Support directly, using this link:--> Contact Apple for support and service , or make an appointment (*) and have your device inspected at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> https://locate.apple.com/choose-country-region . After checking it out, they'll give you all the available options.
Regards
Giulio
(*) You can do it:
User level: Level 10 (97,882 points)Sep 17, 2026 10:29 PM in response to hridip
Welcome and thank you for reaching out. 🤗
There appears to be a problem with the internal display panel. Only a certified Apple technician can determine the cause and offer a complete solution.
Therefore, I recommend service.
Service Checklist:
Service Appointment:
Contact Information:
Additional Support:
Good luck! 👋🏼😉
Smiliñ 😎 Brian | Community Volunteer
User level: Level 10 (93,009 points)Sep 17, 2026 12:54 AM in response to hridip
Have any parts of the iPhone been replaced in the past?
Has the iPhone been dropped? Did you check the battery health in Settings/Battery?
Did you already restart or force restart your iPhone after the latest iOS 27 upgrade?
User level: Level 10 (107,674 points)Oct 27, 2026 1:56 AM in response to Hruy
Hruy wrote:
If I had read your post sooner, I probably wouldn’t have updated to this iOS 27; it’s causing the screen to flicker, just like you mentioned.
The thermal stress of any heavy software action including an update can trigger an already failing hardware component to fail completely. Fact. Nobody's fault.
The last straw breaks the camel's back.
Pay for a repair https://support.apple.com
User level: Level 1 (8 points)Nov 4, 2026 11:00 AM in response to hridip
Same here on an iPhone 12 Pro Max. The issue started happening after the iOS 27 update, never had it before. I'm on iOS 27.2 now and the issue is still here.
It's definitely not a hardware fault but a software issue. I notice it on low brightness (around 20% triggers it) with Dark Mode on. It's not constant, it happens every couple of minutes maybe, when scrolling through a dark app, like Reddit, the Instagram comments section seems to do this a lot and sometimes even the keyboard (it just did this while I was typing the message).
The dark grey background seems to quickly flash between 2 shades of grey for a couple of seconds but the light colors (text, images) are absolutely not affected by this. It also happens when the view (not necessarily the whole screen, but a dark grey section) is stationary - or at least I didn't notice it when scrolling.
User level: Level 10 (107,674 points)Sep 17, 2026 1:02 AM in response to hridip
The thermal stress of any heavy software action including an update can trigger an already failing hardware component to fail completely. Fact. Nobody's fault.
The last straw breaks the camel's back.
User level: Level 10 (107,674 points)Sep 25, 2026 11:19 PM in response to hridip
hridip wrote:
I never dropped or replaced any parts. Its just started flickering after ios 27 update. I did force restart my device a few times but it didn't fix it.
You obviously didn’t read my post so I will restate it
The thermal stress of any heavy software action including an update can trigger an already failing hardware component to fail completely. Fact. Nobody's fault.
The last straw breaks the camel's back.
User level: Level 10 (107,674 points)Sep 26, 2026 4:35 AM in response to DX3XT3YKJCM2
DX3XT3YKJCM2 wrote:
"I would like to update my iPhone to the latest iOS."
Settings , General,Software updates
Follow the "update now" prompt.
If it says you are up to date then you are as far as you can go
User level: Level 1 (8 points)Sep 19, 2026 9:18 AM in response to hridip
Same with iphone 12 Fliker display randomly when switching between apps or any other taskes
User level: Level 1 (6 points)Sep 25, 2026 9:51 PM in response to Ingo2711
I never dropped or replaced any parts. Its just started flickering after ios 27 update. I did force restart my device a few times but it didn't fix it.
User level: Level 1 (8 points)Sep 25, 2026 11:49 PM in response to hridip
"I would like to update my iPhone to the latest iOS."
User level: Level 1 (8 points)Oct 26, 2026 10:48 PM in response to hridip
If I had read your post sooner, I probably wouldn’t have updated to this iOS 27; it’s causing the screen to flicker, just like you mentioned.
Nov 4, 2026 2:06 PM in response to AdrianNotTheEmperor
AdrianNotTheEmperor wrote:
...
It's definitely not a hardware fault but a software issue. ...
What diagnostics have been performed to prove your belief?
Originally posted at discussions.apple.com/thread/256358690