iPhone 15 Pro screen brightness issue after iOS 26 update

I am also one the unlucky iPhone 15 Pro users with this issue. Switch off and on immediately and the screen brightness is back to normal. But I have also noticed in very dark room, it also doesn't auto dim completely, I have to manually dim it further.

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This bug is unacceptable. Yesterday I updated to iOS 26.1 hoping to finally have this bug fixed, and apparently I still have it. Initially I thought it was fixed because everything was working normally, but this morning the problem occurred again. I feel it happens less frequently, but it continues to happen, which is a shame.

Updated to iOS 26.1 yesterday and the issue happens less often, but it still happens.

It’s happening to my iPhone but the opposite like it will be maximum brightness in a dark room at 1am for no apparent reason even though I’ve got auto brightness on, happening to my m4 iPad Pro aswell all on OS26

Same issue for me, 15 Pro Max... I love the auto-brightness future since I owned my first iPhone 8 Plus years ago. also iOS 26.0.1 didn't fix it, contacted apple feedback support like day 3 about this when ios 26.0.0 released, so I guess good job Apple...

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I also have this problem and it’s so annoying…nothing worked and those guys are so lame …they don’t do nothing at all via support. I don’t understand nothing about what are they trying to do …maybe they want to ruin this company cause I don’t understand how can people buy such expensive products and not using them as it should. So lame

Hi Apple team I hope you are reading this , IOS 26 is a bug hole update ,

1) Facebook photo scrolling is laggy

2) brightness dim and bright not working properly, sometime too bright sometime too dim even without adaptive and auto brightness on (This was not an issue in iOS 18

3) battery draining in IOS 26 is horrible quick (even screen is not on and still draining )

4) motion in Home Screen page is laggy when scrolling from last page to first page , I think due to the Liquid Glass effect

5) unable to turn off the Liquid Glass effect , because I think it is extremely ugly (I update it because I want to give it a try but now cannot revert back to iOS 18 because you guys had unsigned the iOS 18 Door in IPSW.me

Please fix it if you don’t want to lose your customers in the future , you are doing fine before but getting worse now.

Thank you.

I’m having the same issue. I have an iPhone 15 Pro Max. iOS 26.0.1. This is just one of many bugs with the new iOS. Another glaring issue is the inability to use the camera widget. It opens to a black screen and literally freezes the phone for a

moment.

Same here, iPhone 15 Pro, updated to iOS 26, and I’m seeing the exact same issue. After waking the phone, the screen is way too dim, and unlocking doesn’t fix it. I have to lock and unlock again to get auto-brightness working properly.

It’s about 5 times a day, but definitely frequent enough to be frustrating. Glad I’m not the only one noticing this. Hopefully Apple patches it soon™.

It is most definitely not hardware , this wasn’t happening prior to the update , also I’m updated to 26.1 and it’s still dimming my display. It doesn’t do it often , but like today it did it out of the blue. There needs to be a better way to fix this rather than telling us that it’s hardware on our phones . So we all have hardware issues after the update ? I think if that’s the case apple needs to look into that .

It’s absolutely mind boggling that apple released this trash software. Same problem. How are this many people having these problems and these weren’t noticed in testing before release? What an absolute trash update this has been. Soooooo many bugs. Unacceptable apple. Absolutely unacceptable

Most likely all iPhone 15 pro max are having this issue on ios 26.. this much lower level of brightness was never unlocked in the 15 pro max (was touted as a feature in the 16 pro.. hahaha). Lol.. still a lot to fix in ios 26

Same issue on iPhone 16e with iOS 26.0.1. My iPhone is close to unusable in the daytime except indoors in gloomy rooms. What is this nonsense?

I have though been wondering if this impiously dimming of my iPhone screen somehow may be related to the case having a built-in magnet for clinging to a metal holder. The iPhone case is a really good Smartish GRIPZILLA - but can its MagSafe feature influence an iPhone so the screen is dimmed? A rather silly question, I'm afraid - but after having tried every trick on WWW I'm ready for any bypassing straw.

15PM same thing. 26.0.1 did not fix it.

Really ****** off at myself for upgrading to this buggy sofware across the entire lineup of products.

Previous version worked like a charm and I had really hoped all was going to be the same with this one.

Tried this. It did not worked at all. After unlocking my iPhone 15 Pro Max, the screen keeps dimmed. It has to be something related with iOS 26 turning off the light sensor service when locking the phone.