1. geosoares11's Avatar
    I want Know the same thing !!!! iOS 10.3 beta 2 fix this problem ? Beta 1 not fix ! I tried !
    02-08-2017 06:58 PM
  2. fuquinay's Avatar
    This has been driving me crazy for weeks. As soon as the battery reaches 49%, my screen goes dim, and there's no way to fix it. (My battery also has issues. Sometimes it's at 26%, and I'll plug it in, and it'll immediately jump to 60%. Sometimes it will shut off, and I'll turn it on, and it'll have plenty of battery left.

    This may be my last iPhone. I'm annoyed.
    02-08-2017 09:42 PM
  3. moelsk's Avatar
    The solution shouldn't be continually doing hard resets. It is related to battery charge. It dims at 75 and 50.
    02-09-2017 03:51 PM
  4. andoeire's Avatar
    I have this problem too on my 6s. I've actually seen the screen go bright and dark over the last week or two, I just never put it together to record the battery percentage. I was thinking worst case it was a hardware issue, but by going by this thread, it looks to be a software issue. Hopefully this is a bug and Apple will provide a fix, its annoying seeing the screen go dark when brightness is set to MAX!!

    I can also confirm my screen just went brighter when charging and hit 75% exactly...
    02-14-2017 03:50 AM
  5. reeltuff's Avatar
    I have this problem too on my 6s. I've actually seen the screen go bright and dark over the last week or two, I just never put it together to record the battery percentage. I was thinking worst case it was a hardware issue, but by going by this thread, it looks to be a software issue. Hopefully this is a bug and Apple will provide a fix, its annoying seeing the screen go dark when brightness is set to MAX!!

    I can also confirm my screen just went brighter when charging and hit 75% exactly...
    02-17-2017 02:15 PM
  6. reeltuff's Avatar
    My 6s does it also.
    02-17-2017 02:15 PM
  7. budapest23's Avatar
    Same here on my 6S, really frustrating when outdoors and screen is dim and you can't do anything about it as brightness control is on maximum.
    02-18-2017 03:36 AM
  8. pr1nce's Avatar
    I have iOS 10.2.1 on my 6s and I haven't noticed this problem.
    02-18-2017 08:54 AM
  9. denispolizzi's Avatar
    I want Know the same thing !!!! iOS 10.3 beta 2 fix this problem ? Beta 1 not fix ! I tried !
    Beta 3 here and same ****!
    02-20-2017 11:34 PM
  10. mark-d's Avatar
    Both my iPhone and my iPad are running the beta. Both were set the same but on Saturday my iPhone screen dimmed! I turned off auto brightness and its fine now.

    Still working ok with auto brightness enabled on iPad
    02-21-2017 01:11 AM
  11. Boris Yurkevich's Avatar
    Beta 3 here and same ****!
    Hello, I created a ticket and Apple developers asked me is this still an issue on iOS 10.3 beta 4?
    02-28-2017 12:31 PM
  12. theboyk's Avatar
    Man, I've been having this exact same problem. I'm running 10.2.1 and it's been driving me nuts. Outside, once the battery goes below 50%, it becomes unusable as the screen goes so dim (especially with sunglasses on). I've been racking my brain over this and went so far as to take notes to track it, and here's what I'm experiencing...

    - issue begins @ 75% battery drain (goes slightly dim)
    - at 50% drain, the screen goes super even dimmer (to the point of being barely usable outside)

    Now, I've also noticed the following...

    - when battery is below 75%, but above 50%, the brightness slider has no affect on the brightness when you drag it beyond about 75% on the slider (the screen stops getting brighter, even though there's still room left on the slider)

    - when battery is below 50%, same sorta things, except the brightness slider has no affect beyond the halfway point (and the screen only goes about 50% brightness)

    Other things I've noticed...

    - reboots (soft and hard) have no affect

    - resets (Settings > General > Reset > Reset All Settings) sometimes correct the issue, but not consistently (earlier in the week, a reset corrected it, but today, multiple resets did nothing)

    - wiping the phone has the same general affect as Reset All Settings in that sometimes it corrects the issue, other times it doesn't. For example, outside at lunch today, battery hits 50% battery drain, could barely see my screen. Got back to work, did multiple resets (Reset All Settings). Nothing. Figured, what the heck, I'll try a wipe (didn't restore from iCloud as I just wanted to get into the system to test the brightness slider). Nothing. Then, did a second wipe, this time restoring from iCloud. This time it corrected the issue (though, at this point, I'd plugged the phone in—though, was only at 30% battery drain).

    Anyone notice if Beta 4 has corrected this? Going to load it up this afternoon and test...
    J Walker1 likes this.
    03-02-2017 02:41 PM
  13. mark-d's Avatar
    I turned off auto brightness and it works fine for me now
    03-03-2017 01:50 AM
  14. Boris Yurkevich's Avatar
    What iOS version are you on? Beta 4?
    03-03-2017 04:09 AM
  15. theboyk's Avatar
    Just an update...I upgraded to 10.3 Beta 4 last night (was on 10.2.1 when I made my post yesterday). I'd like to say the issue is fixed, but to be honest, it's really hard to tell. Why? The battery indicator seems totally wacked. I went for the same walk today that I did yesterday. Pretty much the same conditions. Started out with battery at around 80%—same as yesterday. But, today, within 10 minutes, the drain dropped below 70% (screen didn't dim—which I thought was great, though I was thinking the battery drained pretty fast...but, it is a beta). Then, 15 minutes later, I was down to 20% (got the low battery warning). Still no dimmed screen...but battery was dropping fast. Within 2-5 minutes after that, it was at 1%. Screen was still 100% brightness, but in less than half an hour, I was down to 1% battery (from 80%). Then, for the next 30 minutes, it remained at 1%. Never died, just stayed at 1% for the rest of my walk. Still at 1% when I got back to the office. Plugged it into power, and within 5 minutes it was at 70%. As I type this, maybe 5 minutes after hitting 70%, it's now at 80% (just got the pop-up that no longer in low-power mode). So, not really sure I can trust the battery level indicator at this point, so hard to say if I ever actually dropped to 75% and 50%? I was showing 1% battery at around the same point today that I would have hit 70% yesterday. So, who knows? I'll keep testing it and we'll see.

    Thinking about it now, I should have let the phone completely drain...see how long it'd last at 1% before shutting down. I'll do that next time...

    k.
    J Walker1 likes this.
    03-03-2017 01:10 PM
  16. noura835's Avatar
    Guys! I found a way to fix this. Go to settings, general, accessibility, vision - zoom, scroll down to zoom filter and select none. It's automatically selected as low light. I had the same problem. It's fixed now. Hope this helped.
    03-11-2017 07:00 AM
  17. narquiett's Avatar
    This DOES happen on the iPhone 6S not just the 6
    03-11-2017 07:05 PM
  18. J Walker1's Avatar
    My iPhone 6 was doing this last week, it would keep randomly going dark and bright, exactly the same as if it had overheated, but the phone wasn't hot.

    Recently its stopped doing it but: I just noticed now its on 46%, and having just done the view, zoom display reset thing the display has come back much brighter. I didn't even realise it had dimmed! Pretty annoying, I'll be reporting this to apple
    03-14-2017 02:26 PM
  19. J Walker1's Avatar
    noura835, That is not the issue these users and myself are having, our displays dim randomly and re-brighten in front of our faces when in use. Zoom is always off in my case. Glad your issue is fixed though!
    03-14-2017 02:28 PM
  20. Rene Ritchie's Avatar
    I still get this occasionally, but it still only seems to be when my iPhone is overly warm and, when it cools down, the display lights back up again.
    03-16-2017 08:31 AM
  21. theboyk's Avatar
    Just another follow-up on this. I've been dealing with this issue via Apple (via an ongoing bug report) a lot over the last few weeks. I get out of the studio every day in the afternoon for a lunchtime walk. And with the cold weather up here in Canada, battery drains a lot faster than normal outside, so I've been able to hit that 50% mark pretty consistently to monitor the issue . And on an average day, with sunglasses on, the force-dimming at 50% drain makes viewing the phone nearly impossible. Even without sunglasses, it's not much better. So, been testing this almost daily and updating Apple about the issue.

    Well, looks like I've been wasting my time. Last night, after filing an update regarding 10.3 beta6, Apple came back with the following:

    This issue behaves as intended.
    We are now closing this bug report.


    So, I guess that's it. We're stuck with it. I'd rather my battery drain faster and still be able to use my phone, then have the battery last longer, but not be able to use it. Very frustrating.
    03-16-2017 10:17 AM
46 12

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