nishant30091994

Q: Screen brightness dimming on its own(without auto brightness on)

I Have an iPhone 5s. the brightness of my screen changes randomly even with Auto brightness off. i always keep my phone  on 100% brightness and sometimes The brightness gets dimmer. the brightness changes randomly. is it a serious hardware problem guys coz my phone is brand new. I went to Apple service centre and made a fool of myself coz I couldn't present my problem when asked. anyone else faced it before????

iPhone 5s, iOS 8

Posted on Sep 23, 2014 5:03 AM

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Q: Screen brightness dimming on its own(without auto brightness on)

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  • by Alan Levine,

    Alan Levine Alan Levine Aug 3, 2015 11:40 AM in response to apple-av8or
    Level 1 (25 points)
    Aug 3, 2015 11:40 AM in response to apple-av8or

    It helps to know others have a similar problem, that's mostly what I find in the Apple support forums. Thats weird enough about the private settings. I'm writing on my Mac Book Pro and noticed it logged me out after like an hour.

     

    I'm not quite ready to attribute it to an Apple Secret master Plan. The system is insanely complex, and I know in my much simpler web programming that the systems I think are perfect have all kinds of gaffs and goofs for other people. I think we have a high degree of expectation for the way the devices work.

     

    I had my own battle with the inconsistent data on disk usage; My 16 Gb was always running with little space, and I remove music, and regularly deleted photos. I noticed some apps like flickr gobbled up 1Gb or more and the only way to release it was to reinstall.

     

    And then I found a video app reporting using only 315 Mb released 6 Gb when i deleted it!

     

    http://cogdogblog.com/2015/06/25/engorged-apps/

     

    There is a lot going on inside that little device that seems to defy logic.

  • by CupawnTae,

    CupawnTae CupawnTae Aug 4, 2015 3:10 PM in response to nishant30091994
    Level 1 (0 points)
    Aug 4, 2015 3:10 PM in response to nishant30091994

    I've managed to reproduce this 100% on a completely fresh install of iOS 8.4. Of course, with this kind of issue there can be multiple unrelated effects which appear on the surface to be the same problem and this can cloud the issue, but I'd be very interested to hear if others can reproduce what I'm seeing.

     

    I noticed it tended to happen when I locked my phone during video playback. I have a feeling something in iOS analyses the video and when it's very dark it reduces backlight power to make the black even blacker. But if you lock the phone while it's dimmed like this, it can "forget" to turn the juice back up.

     

    The trick to reproducing it is to lock while a dark video is playing (and the control/status bars are not visible), and then unlock the phone without going straight back into the video player. There are plenty of ways of doing this, but the easiest is to launch the camera app directly from the lock screen without unlocking the phone completely. Once you do this, you can then unlock fully and observe the now dimmed display. You can get back to full brightness by restarting the video and stopping it properly at a bright section.

     

    So I made a video to help test it - it's at https://youtu.be/b6wrnr0kl78 - it's just some explanatory text, followed by a long black section - lock the phone during the black section, open the camera app directly from the lock screen, and see if your screen is now dimmer.

     

    If others can reproduce this consistently, I can log a bug report with Apple. (I'd be *very* interested to know if it still happens in iOS 9 beta)

  • by iMarbot,

    iMarbot iMarbot Aug 15, 2015 4:11 AM in response to CupawnTae
    Level 1 (0 points)
    Aug 15, 2015 4:11 AM in response to CupawnTae

    I am running iOS 9  Developer Beta 5 and the issue still occurs, I can indeed add to the theory that it is because the device gets too hot. My device is a 5s.

  • by filpir,

    filpir filpir Aug 19, 2015 9:01 AM in response to nishant30091994
    Level 1 (0 points)
    Aug 19, 2015 9:01 AM in response to nishant30091994

    Hi.

     

    Take a look at this http://www.igeeksblog.com/how-to-fix-dim-screen-of-iphone-6-and-6-plus/

     

    Solution #3 solved my problem!

     

    Hope it helps.

  • by apple-av8or,

    apple-av8or apple-av8or Aug 20, 2015 11:23 AM in response to filpir
    Level 1 (0 points)
    Aug 20, 2015 11:23 AM in response to filpir

    II've tried the very same steps before with no luck.  Just tried it again to make sure it's still going on and unfortunately there's no change.

    I just went back and turned Zoom back on (step 3).

    iPhone ***** without that feature with such a tiny screen (wow, censorship takes out the word s u x in numerous spelling versions, talk about Apple Great Wall of Censorship. Putin and Kim-Yong-Un would be proud - embarrassing :-/ )

    Besides, we shouldn't have to disable important features in order to use our devises without the idiotic auto-brightness playing havoc on us.  I don't think it's auto brightness anyways since it's doing it with it ON or OFF.  I think it's the actual phone overheating and protecting itself..

     

    So back to square one...  :-(

  • by gc505,

    gc505 gc505 Aug 24, 2015 4:09 PM in response to apple-av8or
    Level 1 (0 points)
    Aug 24, 2015 4:09 PM in response to apple-av8or

    I have a iPhone 6+. My screen always goes from full brightness to 50% dim after a few minutes of 'playing' a popular flight simulator (Infinite Flight).

    After all of the posts and no real information from Apple, I am left to assume the iPhone is either, a) switching to a battery preservation mode, since the (100%) CPU and the screen (100% brightness) are both pulling from the battery, or b) the heat generated by the CPU is causing the video hardware to malfunction.

     

    Since 'b' is unlikely, because everything keeps working, albeit 'dimmed', I am left to assume this is a 'feature'.

     

    Another reason I think it is a feature is because the brightness slider, when accessed during a forced dimness session will allow brightness settings from 1% to 50%. The brightness remains at 50% regardless of a setting greater than 50%, all the way to 100%.

  • by apple-av8or,

    apple-av8or apple-av8or Aug 24, 2015 4:15 PM in response to gc505
    Level 1 (0 points)
    Aug 24, 2015 4:15 PM in response to gc505

    II've been dealing with the exact same issues since I bought my phone as soon as it was released about a year ago..

    I have now come to the conclusion that there might be two more options:

     

    C) - they really don't know themselves? (I've heard so many different explanations from apple geeks that I've given up on listening to them),

    D) - they're aware of the problem but don't care.  It's still the most popular smart phone out there.

  • by andrewb4u,

    andrewb4u andrewb4u Sep 3, 2015 5:58 AM in response to nishant30091994
    Level 1 (0 points)
    Sep 3, 2015 5:58 AM in response to nishant30091994

    I can't cure my phone from dimming but I can get it return to a brightness of my choice.

    When it dims I slide up the control panel from the bottom of the page. When I re-adjust the brightness slider, as soon as I remove my finger it dims again. So I leave my finger on the slider and push the control panel down to the bottom with a finger from my other hand.

    Hope this rips helps stop some frustration.

    Andrew

  • by Tjformayor,

    Tjformayor Tjformayor Sep 10, 2015 8:21 AM in response to nishant30091994
    Level 1 (0 points)
    Sep 10, 2015 8:21 AM in response to nishant30091994

    If you have tap zoom enabled in the accessibility settings try disabling it. I had the same problem and this fixed mine.

  • by iMarbot,

    iMarbot iMarbot Sep 10, 2015 11:47 AM in response to Tjformayor
    Level 1 (0 points)
    Sep 10, 2015 11:47 AM in response to Tjformayor

    Sadly it is not enabled for me and I still have the issue. I recently updated to iOS 9.1 Beta and will reply if issue still persists.

  • by Moeeliza,

    Moeeliza Moeeliza Sep 23, 2015 1:50 AM in response to nishant30091994
    Level 1 (0 points)
    Sep 23, 2015 1:50 AM in response to nishant30091994

    HI, I was having the same dimming problem and I read everyones thoughts on this thread. I have been really frustrated that there was no answer.  Now maybe this isn't "the real fix" but I was fooling around in settings while my screen was dimmed and I turned off the zoom feature and my screen popped back to being bright again. Just thought I'd share this with all of you in case it might help you??? =)

  • by Moeeliza,

    Moeeliza Moeeliza Sep 23, 2015 2:13 AM in response to Tjformayor
    Level 1 (0 points)
    Sep 23, 2015 2:13 AM in response to Tjformayor

    Yes! I amy turned off the zoom feature and my phone went immediately from dim to bright!! I think you found the answer!!=)

  • by Moeeliza,

    Moeeliza Moeeliza Sep 23, 2015 2:16 AM in response to Moeeliza
    Level 1 (0 points)
    Sep 23, 2015 2:16 AM in response to Moeeliza

    It should say accidently in the above post instead of amy? Sorry, I couldn't figure out how to edit my post above. 

  • by catdragon,

    catdragon catdragon Sep 25, 2015 10:38 AM in response to nishant30091994
    Level 1 (0 points)
    Sep 25, 2015 10:38 AM in response to nishant30091994

    just got my iphone 6s and this issue happened to me.  display brightness suddenly dropped to about 60%. moving the slider only works up to the midpoint on the slider, after that mid-point increasing the brightness has no effect  ..  50%-100% is all the same dimmed screen. what a bummer!!

  • by cs51762,

    cs51762 cs51762 Sep 30, 2015 2:00 PM in response to catdragon
    Level 1 (0 points)
    Sep 30, 2015 2:00 PM in response to catdragon

    What ever happened to deductive reasoning? I noticed my screen was dim. My phone was mounted on my car windshield in the sun. My phone was hot. I went inside and when my phone cooled off, the display was bright again. It shouldn't take a rocket scientist to figure out that THE DISPLAY DIMS WHEN THE PHONE GETS HOT. In fact, it only took me a few minutes to reproduce the problem. I held my phone in front of a space heater and as it heated up, I watched the screen dim in three distinct steps. I then placed the phone on my desk, and what do you know, the screen brightened back up as it cooled down. Apple DESIGNED IT TO DO THAT. D@mn, people, use your brains.

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