iOS 27 Bug: iPhone Screen Randomly Fails to Wake From Sleep (Raise to Wake, Tap to Wake, Side Button)

Hi again.

On other online forums, people say this happens when “raise to wake” and “tap to wake” are both enabled and always after a long period of standby. One user reported that after disabling “raise to wake” the problem went away.

I found a workaround till they fix this bug. If you turn your auto brightness off and then leave it at just above the lowest level at night the screen will still respond even if you're on do not disturb and in a dark room.

I think i found a FIX: go to settings / accessibility / Display and text size — here turn off “show borders”

It's a shame that Apple hasn't fixed this bug yet. The bug does not depend on any iOS update. The bug occurs when in accessibility the “tap function and swipe up to activate” is disabled. The side button turns on the screen, but the touchscreen is disabled. This happens randomly. Even if all the other options are disabled and I refer to "raise to activate" etc. etc. the bug always reappears. (Iphone 14 Pro)

I also experienced the same issue on my iPhone 17 Pro. It happened multiple times where tapping the screen simply didn’t work, until I forced a restart.

shahariarrabby wrote:

after updating to iOS 27.

Not every issue an individual encounters on their device can be attributed to an iOS update. iOS 27 or later may have coincided with what you are experiencing, but that does not mean the issue was triggered by iOS. Coincidence in timing is not, by itself, evidence of causation.

If the update itself were the root cause, then every device running that same version of iOS would exhibit the identical problem. In such a scenario, the forums would be flooded with countless posts reporting the same malfunction, creating an unmistakable wave of complaints that no one could possibly overlook.

The absence of such widespread reports strongly indicates that the issue is not a general, system-wide problem with iOS 27 or later, but rather something specific to the individual device, its configuration, installed apps, settings, hardware, or another interacting factor.

In short: iOS 27 or later may be a coincidence in timing, but there is no basis to conclude that iOS itself triggered the problem simply because the issue appeared after the update.

If your iPhone’s screen was replaced by an unauthorised service provider, there is a possibility that the display may not function as expected. Depending on the quality of the replacement screen, its compatibility with your iPhone, and the workmanship involved in the installation, you may experience intermittent touch-response issues, unexpected screen behaviour, flickering, brightness inconsistencies, or other display-related problems.

I recommend getting the display examined by the same service provider who replaced it. Explain the specific issues you are experiencing and ask them to check whether the replacement screen is fully compatible with your iPhone, properly installed, and functioning correctly.

Keep in mind that not every display problem is necessarily caused by an unauthorised screen replacement. However, if the issue started after the replacement, it is reasonable to have the screen and its connections checked before investigating other possible causes.

I can confirm that the same thing is happening to me. Ever since I updated to iOS 27 (iPhone 14 Pro Max), sometimes the screen goes completely black when I try to turn it back on or unlock it — no matter how many times I press the power button or double-tap it... nothing works.

What’s more, one of the last times this happened, out of desperation, I accidentally pressed the power button more than five times, and it automatically called emergency services because of my personal settings. I couldn’t stop it because the screen was completely black, and it was a huge hassle for me.

I've noticed—I don't know if it has anything to do with it—that this happens to me when my iPhone is in “Do Not Disturb” mode, before I unlock it. I've also noticed that the screen “comes back to life” after the Face ID unlock fails (I point it in another direction), then I feel the vibration for an incorrect Face ID scan. After that, I press the lock button again, press it once more to turn on, and then it seems to come back on. I don't know if it's just a coincidence.

The screen is the original one, and I've never replaced it.

This has never happened to me before, and I can confirm that it started happening the day after I updated to iOS 27.

I have the same issue on my iPhone 14 Pro, which has the original screen, and it started after updating to iOS 27.

As another user mentioned, I’ve noticed that it happens more often at night, and my phone is also in “Do Not Disturb” mode at the time.

And I don’t need to leave the phone idle for a long time. Sometimes, it happens just by putting it down for a few seconds and waking it up again.

I’ve been running into this with my iPhone 14 Pro ever since the iOS 27 update. It does seem to happen more while DND is on for me too, as someone mentioned above. My phone had a battery replacement over a year ago at apple, but still the original screen.

One thing I’ve noticed recently, is that it seems like the touch screen digitizer is sometimes responsive while this is happening, even though the display itself is not coming on. For example, I found that if I’m playing media, I’m able to skip around etc, as if the screen is on even though it isn’t.

Same issue for me! iPhone 14 Pro with the original screen and the nonresponsive touch screen started within one hour of the iOS update. Super frustrating! We need a resolution. The phone becomes unusable when the screen is black and can be dangerous touching buttons you can’t see, as someone mentioned in a previous comment.

I also got the same thing happening to me.

I recently updated to iOS 27 (iPhone 14 Pro Max) and now sometimes the screen goes completely black when I try to turn it back on or unlock it — no matter how many times I press the power button or double-tap it... nothing works.

Siri listens and responds as usual but screen does not wake up. It stays completely black.

I have never visited any repair shop for my iPhone. It is all original and intact.

This has never happened to me before but has started happening recently after I have already updated to ios 27.0

iPhone 14 Pro, everything original never repaired. Just updated to todays released iOS 27.2 , bug still here, happened in dark room, unable to wake screen .. had to turn the light on then the screen woke up -_-

Same issue on iPhone 15 Pro. Screen has never been replaced and my phone does not go into Do Not Disturb. Started with iOS 27 and continues in iOS 27.2. Happens randomly, but I’m starting to miss phone calls because my screen won’t wake up. Very frustrating when my phone can’t answer phone calls!

I’ve had this issue recently as well, tech support is my niche, and I’m struggling with figuring out the root cause of this issue. I went as far as checking my battery health and to my surprise, it’s at 79%. I keep my screen dim 95% of the time, so this made me think it was the battery (my phone also likes to hang up on any sort of call if I close my screen with the power button. Haven’t messed with the settings for that since I’ve owned it. If it’s an iOS issue, Apple absolutely needs to address it, as this is a huge interference for those of us who use our phones for work.

edit: I have the iPhone 14 Pro Max

Absolutely terrible. My screen turned green and I could not do anything, Apple Store did not have any appointments available, so I went to repair next door. iPhone 14pro max worked perfectly, no issue at all, since the update quality of photos is terrible and I couldn’t use my phone as screen was not working. I don’t think it’s even legal to do that to people if they trust you and buy your products.

I’m having the same issue on my iPhone 15 pro max. No screen replacements.

Me too, iPhone 14 Pro. No screen replacements.

Same thing for me, iPhone 15 Pro with original screen. Started happening within an hour of using my phone after the update.

Same here it’s annoying

Not helpful

how to troubleshoot?

For me, it also happens more frequently in a dark environment.

Facing the same issue after ios27 update only.

Phone doesn’t wake up even after pressing the power button multiple times.

Same issue. iOS 27.2, iPhone 18Pro.

Always on setting is not consistently working as well.

Same here! Mostly happens at night. 14 pro max, ios 27.2

Same here! Mostly ive noticed when im taking it out in my pocket. It happens 3 times. Not turning on or waking up no matter how i press power button and volume button.

Also have this problem, iPhone 14 pro everything original