iPhone 12 pro max keeps dimming

Unfortunately, I haven’t been able to fix this issue. I read and then tried all of the recommendations/suggestions here but my phone must be defective so I continue to turn the light back up throughout the day. If you happen to find something that works for your phone, would you please post it here?

Thank you!

I agree completely, whilst some of these ridiculously complicated adjustments to settings help marginally, they don’t fix or get rid of the problem. The 12 series is basically a rushed out phone that performs like a bag of spanners!

Still haven’t read how to fix the dimmer that’s only works 1/3rd of the way. It will take the phone to total black as if the phone is telling me…..” be satisfied with 1/3rd brightness or I’ll dim the entire screen…. Do we understand each other?”

why is it so difficult to resolve?

Problem is that Apple was well aware of this at least since the 7plus and iOS updates failed to rectify it. It had become so annoying I switched to Samsung and have no issues. Shame because Apple lost a customer

All Apple has to do is address the issues with their overheats, add some decent cameras, and improve their battery life instead of changing a phone by 1mm in width or some other insignificant cosmetic improvement and then brand it with a new iPhone number. I went to the Samsung Galaxy, albeit a pain with certain functions, it has exceptional screen resolution and battery life.

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I have an iPhone 12 max and live in the Middle Easy. Whenever I go outside my iPhone keeps dimming to the point I can no longer read the screen. Tried everything I could find anywhere and nothing works. So annoying!

Same problem here. makes the phone unusable when you live in a warm climate.

Why doesn't Apple use CPU throttling instead of screen dimming? I would prefer to a have a phone that is a bit slower but with a screen I can read.

Maybe the design flaw is related to the size of the screen and the battery usage to power it. It would explain how the issue appear only on the largest iphone. Therefore the cpu reduction would have a limited impact and would require such a throttling that would prevent normal operation.

Same problem here. Went to Genius bar twice and they refuse to replace or repair the phone. They say it’s “normal” thing. What a deception! This is clearly not Apple quality. They should fix this to all 12 Pro Max users… It does that to affect me in my work as I am a professional Drone pilot.

Same! After many many complaints, chats and trips to the apple store they replaced my phone. My previous phone only did it outside. Now this replacement does it inside at room temp. I've turned off every single setting that has ever been suggested. Im ready to trade in for another samsung. Wish I had never moved from Samsung to Iphone.

Can anyone confirm if this is a heat issue, or a “pre-programmed” dimming problem hardwired in to stop the phone from actually heating up… in a dim room if I tilt the phone toward a light source there is very slight dimming; when tilted back away, the screen lightens. This is when the phone is not hot…

Has anyone found a fix for this? Same problem screen dims on its own I have all settings turned off or on as suggested l. Seems like some apps use more CPU power like Nextdoor which cause screen to start to dim. Apple should recall 12 pro max.

Well great. I’m still making payments on my phone and just this week I noticed it seemed to be going darker while using it. I thought I was seeing things. Then I caught it first hand and realized what was happening. It seemed as if it was going in the stages of “sleep mode” except not as dark. Then it would brighten back up suddenly. Ughhhh. This angers me. Pay all that money and it messes up before you’ve had it a year.

My eyesight has gone south due to diabetes, which is why I upgraded to a larger screen. I wish Apple would have let us know as when it goes dim, I can’t really see it that well. I do appreciate your insistence to find an answer, I’ve been trying to figure this out for months and tech support has been pretty worthless.

anyone know if the 13 has the same problems? Maybe someone can make a fan case to cool the phones? 🤷🏻‍♂️

****** me off!! I’ve had this problem for a while. I called support and they walked me through a fix. I think it was a rest network deal. This time nothing is working. They said it was a recent update issue.