1. slashster's Avatar
    When I awake the phone, its brightness level is dimmed to approximately 50% or less regardless of what level I have it set at. If I pull down the notification menu and toggle autobrightness to On, then back to Off it will reset to the correct selected level.I use it at max brightness for example while it is on charger to test this.
    This makes it almost impossible to use the phone outside since it is too dim to unlock unless I use a light.Other times the lock screen will come on then immediately close. This may be related to the cold weather as it doesn't occur while inside.

    My "solution" while this has been happening is to place several brightness widgets on a screen and hope I can find them on a dark screen to toggle it back on.Not satisfactory.

    I'm running stock, rooted JB on I747 .

    1) Autobrightness off . I tried ON but still same problem.

    2) Powersaving off I tried ON but still same problem

    3) Uninstalled apps such as Lux Free that set brightness levels

    4) Changed batteries

    It has only started happening in the last week or so.Otherwise the phone has been stellar in the months I've had it. I am not flashing a custom ROM yet as I like the Samsung features.

    Any suggestions or ideas on what has caused this problem or on how to fix it ?

    Thanks in advance for any and all help.
    01-03-2013 05:24 AM
  2. meyerweb#CB's Avatar
    Have you installed, or reconfigured, any other apps in the last week or so?

    After uninstalling those apps, did you reboot the phone? If not, try that next.
    01-03-2013 08:13 AM
  3. crester's Avatar
    Did these problems happen before you installed 3rd party apps to control brightness?
    01-03-2013 08:28 AM
  4. worwig's Avatar
    Why not just leave auto brightness on?

    But then you make it sound like you have added some app that is tweaking the brightness in the background.
    crester likes this.
    01-03-2013 08:52 AM
  5. lbkiml's Avatar
    Some of us don't like the constant changing brightness. I have mine fixed at about 1/3 of the slider.
    01-03-2013 09:09 AM
  6. blade22222's Avatar
    You don't have auto adjust screen tone checked right?

    Sent from my SCH-I535 using Android Central Forums
    01-03-2013 09:25 AM
  7. slashster's Avatar
    The phone rebooted when I changed batteries.

    Autobrightness on or off makes no difference, the problem still occurs as stated above.

    Uninstalled all apps that controlled brightness, as stated above.

    Powersaving and all its features have been turned off and on, makes no difference as stated above.

    It is almost empty of apps now as though it was a new phone. It still flickers to a very low level of brightness, even at lock screen. This makes it almost impossible to unlock in under certain lighting conditions.

    Still stumped, and the search continues.


    I removed a screen protector and still no difference. This flickering occurs in randomly such as flipping between screens. I've ruled out the effect of weather and temperature as this still happens even while it is on charger in a standard room.
    01-03-2013 10:30 AM
  8. slashster's Avatar
    Finally solved this problem !! I removed the check mark enabling Light Flow .Still had the same problem after rebooting the phone. Next I uninstalled Light Flow and Light Flow Free. Rebooted.No more flicker ! I re-enabled powersaving mode with all features on, installed Flux to control the brightness and everything works smooth as ever.

    Nowhere in Light Flow is there a setting regarding brightness level.Still no idea why it was interfering with the brightness level. Not worth buying or installing that app again.

    We now return to our normally scheduled broadcast.
    01-05-2013 06:15 AM
  9. blade22222's Avatar
    Yea I used light flow for 20 minutes and un installed it due to bugs.

    Sent from my SCH-I535 using Android Central Forums
    Sharondippity likes this.
    01-05-2013 10:11 AM
  10. meyerweb#CB's Avatar
    I used LF for a while, and didn't have any issues like this one. I did have the infamous "talkback" bug, that made it pretty useless, though.
    01-05-2013 10:57 AM

Similar Threads

  1. Replies: 8
    Last Post: 02-19-2011, 04:47 PM
  2. Was on fence (Epic/Evo) but not so much...
    By parout66 in forum HTC EVO 4G
    Replies: 39
    Last Post: 09-01-2010, 07:07 PM
  3. Replies: 0
    Last Post: 08-06-2010, 09:14 PM
  4. Android Keyboard Not so Responsive?
    By wootang00 in forum HTC EVO 4G
    Replies: 7
    Last Post: 06-04-2010, 06:36 PM
  5. Motorola Milestone Pinch Zoom Not So Hot!?
    By YoungChrisG in forum Motorola Droid
    Replies: 3
    Last Post: 11-19-2009, 08:13 PM