Skip navigation

iPhone 5: Auto-Brightness NOT working

1485 Views 5 Replies Latest reply: Mar 6, 2013 7:49 AM by digsoreos RSS
pantoneismydog Calculating status...
Currently Being Moderated
Oct 10, 2012 12:04 PM

Does anyone check your the iPhone 5 with Auto-Brightness turn on?

I got a replacement (White iPhone) and still doesn't work.

iPhone 5, iOS 6
  • electronicsguy Level 2 Level 2 (190 points)
    Currently Being Moderated
    Oct 10, 2012 12:09 PM (in response to pantoneismydog)

    yup doesn't really work well. it works if you shine an extremely bright light very close to it, or go in a completely dark room. other than that, i can't see it working.

  • electronicsguy Level 2 Level 2 (190 points)
    Currently Being Moderated
    Oct 10, 2012 12:26 PM (in response to pantoneismydog)

    how should i know but i think software, because the sensor does work in extreme conditions. so the thresholds must be off.

  • NoPlayer82 Calculating status...
    Currently Being Moderated
    Oct 16, 2012 6:58 PM (in response to pantoneismydog)

    WELL i'm having a very weired issue with my iPhone 5 32GB. The Auto-Brightness toggle is missing entirely.

     

    Will call Apple Care tomorrow.

  • digsoreos Level 1 Level 1 (0 points)
    Currently Being Moderated
    Mar 6, 2013 7:49 AM (in response to pantoneismydog)

    Try this...

     

     

    digsoreos wrote:

     

    ivan98 wrote:

     

    Refer to Figure 1 in http://www.displaymate.com/AutoBrightness_Controls_2.htm

     

    Prior to iOS 6, the control function of Auto Brightness is pre-determined based on the Brightness slider value you set. Figure 1 shows 4 such curves; 1/4, 1/2, 3/4 and Max.

     

    In iOS 6, http://www.reddit.com/r/apple/comments/10a9p0/til_how_the_ios_6_auto_brightness_ works/ propose that users can dictate their own brightness function.

     

    1. In ambient brightness of value a1, if you're not happy with the proposed brightness by the phone, you set it to some brightness level, say b1.
    2. In ambient brightness of value a2, if you're not happy with the proposed brightness by the phone, you set it to some brightness level, say b2.
    3. In ambient brightness of value a3, if you're not happy with the proposed brightness by the phone, you set it to some brightness level, say b3.

     

    From now on, each time the phone goes into ambient lighting of level a2, it will automatically go into brightness level b2.

     

    Your second link was the solution I was looking for. It also gives an understanding of how auto-brightness works in iOS 6.

     

    From what I gather, there are two options for using auto-brightness: The first lets the iPhone adjust to its pre-programmed default screen brightness levels based on differently lit environments. The second "trains" your iPhone's auto-brightness mechanism to auto-adjust its screen brightness to your custom desired levels of brightness in differently lit environments.

     

    1. Totally Automatic Setting: Turn auto-brightness to OFF. Go in a dark room. Move the slider as far left as you are comfortable with in that dark environment. Turn auto-brightness to ON. Done. Now, move to a brightly lit room and watch the slider adjust to make the screen brighter. Go to a differently lit room, and watch the screen brightness adjust to that environment. Keep a note of whether you like these particular screen brightness settings. If you would prefer a little brighter in one room and a little darker in another from the automatic settings, then you will want to use option 2: Custom automatic setting.
    2. Custom Automatic Setting: Turn auto-brightness to OFF. Go in a dark room. Move the slider as far left as you are comfortable with in that dark environment. Turn auto-brightness to ON. Done? Not quite. Here is where you make your custom adjustments.

     

     

    * Move into a brightly lit room. Watch how the slider adjusts to make the screen bright. Wait until it stops adjusting. Now, if you think it should be brighter or less bright in that environment, move the slider to the brightness setting you prefer. Do NOT turn off the auto-brightness setting. This is how you make your custom adjustments.

    * Now, move to a differently lit environment, like a darkened bedroom. Let your iPhone adjust its brightness to that environment. When it stops adjusting, is the screen brightness at the setting you would like? If so, then do nothing. If not, move the slider accordingly. Again, do not turn off the auto-brightness setting. 
    * Continue doing this for other differently lit environments.

     

     

     

     

     

     

     

     

    Let us know if it works for you all.

     

     

     

     

     

    Thanks, ivan98!

     

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.