If you have Auto-Brightness turned off in Settings > General > Accessibility > Display Accommodations that shouldn’t be happening. Are you sure the brightness is actually adjusting? Smartphone displays are naturally going to look dimmer in bright light. Try going into a dark room and turning the lights on and off. Are you seeing the display change?
They didn’t reply so I will, the same thing is happening to me and I definitely have auto brightness turned off. I’m sitting here in my living room with my brightness all the way up, my phone is not on low power mode or anything and it just randomly gets like 20% darker. During that time the top 40% of my brightness slider doesn’t do anything then a few minutes later it just suddenly gets bright again and the top part of my brightness slider actually works. And i swear my auto brightness is turned off.
I grabbed my son’s iPhone 7, disabled auto-brightness and then raised the brightness level to its brightest setting. Afterwards, I went into dark closet. The brightness level remained at its brightest setting and did not adjust until after I re-enables the auto-brightness setting.
Having said that, either try rebooting the device, update the iOS version (if applicable) or reinstall iOS and then set it up as a new device.
I have an iPhone 8 plus and I have actually done all of those things already but it still does it sometimes and I swear I’m not kidding. I feel like there is a weird setting somewhere or something that is making it happen because I don’t know what else the problem could be.
Alright, i’ll try that at some point thanksIf it were me, I’d restore it and set it up as a new device to see if it resolves the problem. If it does then you can assume it was a glitch of some sort, but if it doesn’t then the problem could be sensor related or something.
I believe you I have an 8plus and I know because I go live daily for my job, my auto brightness is off, my battery saver if off, my night shift and True Tone is off and still my phones brightness will go dimmer and become brighter on its own for some reason *I have an iPhone 8 plus and I have actually done all of those things already but it still does it sometimes and I swear I’m not kidding. I feel like there is a weird setting somewhere or something that is making it happen because I don’t know what else the problem could be.
They didn’t reply so I will, the same thing is happening to me and I definitely have auto brightness turned off. I’m sitting here in my living room with my brightness all the way up, my phone is not on low power mode or anything and it just randomly gets like 20% darker. During that time the top 40% of my brightness slider doesn’t do anything then a few minutes later it just suddenly gets bright again and the top part of my brightness slider actually works. And i swear my auto brightness is turned off.
I notice these are older phones, this is not happening with my XS
It’s definitely not just older iPhones. I have an XS Max, as well as an iPad Pro, and I have the same issue with both devices. My brightness is all the way up, auto brightness and low power mode is off. My screen dims randomly, and returns to brightness just as randomly. I agree with a previous poster; there is a glitch somewhere, and/or someone at Apple screwed up!
If it were me, I’d restore it and set it up as a new device to see if it resolves the problem. If it does then you can assume it was a glitch of some sort, but if it doesn’t then the problem could be sensor related or something.
It’s definitely not just older iPhones. I have an XS Max, as well as an iPad Pro, and I have the same issue with both devices. My brightness is all the way up, auto brightness and low power mode is off. My screen dims randomly, and returns to brightness just as randomly. I agree with a previous poster; there is a glitch somewhere, and/or someone at Apple screwed up!
Happens with my 12Pro Max EVERY SINGLE DAY!!! so annoying updated to iOS 15.3.1 and still happens
I have iPhone 11. It does the same thing. I sent it to apple and they say there is nothing wrong but the problem persists