IPhone display auto brightness

brightness does not function properly on the new iPhone4 sometimes it's dim and I can't see the screen during the day and I need to powered off and re start the system in order for to work properly I've had to do this twice in the four days that I've had my new iPhone4
I have always used the AUTO LIGHT CONTROL feature for the screen displayed on my old iPhone 3GS and it does save the battery I never used
manual setting and I kept in the normal position and it never worked like this it always works properly maybe a bit slow but this one the screen is stuck in the light position sometimes that is dark and I haven't even been in the dark it's either a software issue or maybe somethings wrong with the sensor on the new iPhone if this is a common

Do you use a case, screen protector?
Maybe it is blocking the Ambient Light Sensor.
Set whether iPhone adjusts screen Go to Settings > Brightness and turn Auto-Brightness on or off. If Auto- brightness automatically Brightness is on, iPhone adjusts the screen brightness for current light
conditions using the built-in ambient light sensor.

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Auto Brightness kicks in after phone is unlocked. Anyone else getting this?

After the sleep/wake button is depressed, the "slide to unlock" screen and wallpaper appear, and only after the phone is unlocked does auto brightness engage.
Anyone else experiencing this?

That's normal...it's the iPhone's auto-brightness feature in which it's triggered by a light sensor. If it's too dark, when unlocked, the iPhone will darken it's screen because it's easier on the eye and if it's to bright, the iPhone will brighten it's screen.
Try it in a dark room...turn on the iphone with the lights off and it will be very dim, immediately turn on a flashlight on it and it will immediately turn very bright. This feature only works when the iPhone is unlocked and in opertion.

The auto-brightness of my iPhone is not working, and my system is really unstable. What is Apple going to do about those bugs?

I would like to know when Apple will fix these terrible bugs of the last software updates. My phone isn't working properly. I'm considering the idea of getting another smartphone...

If your system is unstable, you should consider restoring your device through itunes to get a fresh version of the operating system.
If your auto-brightness isn't working, it's possible that there is an issue with your phone's ambient light sensor which is hardware and not affected by an iOS update
Are you using a case? if so, it's possible that you're using one that was made for an iPhone 4 instead of a 4S which has an ambient light sensor that is a few millimeters to the left, so some iPhone 4 cases could cover it slightly, causing the ambient light sensor to not work as affectively

My buttom Auto Brightness is gone - iphone 5 ios6.1

my buttom Auto Brightness is gone - iphone 5 ios6.1
how to fix ?

Im not sure what you mean restore but not fix. I would suggest you set your iPhone up as new, you will loose all your information. Then sync contacts and add your apps back that way you will get rid of any corruption from previous backups. If that fails a DFU restore might be needed.

Auto brightness not working on iPhone 5?

On the iPhone 5 - In the settings, when flicking the auto brightness on/off the screen shows no change in brightness - whether in a completely dark room or with the lights on etc. My iPhone 4 has been updated to IOS6 and seems to be working normally (brightness auto adjusts in all situations).
Anyone else have this problem of the auto brightness not working?

There is nothing wrong with the auto brightness.
When you have auto brightness enabled the slider works as the minimum brightness setting with auto brightness.
If you have the slider too high the brightness cant reduce because youre not letting it.
Set your brightness at about 25% and you'll see what I mean.

My brightness on my iPhone 4S is turning itself low but auto brightness is off

Well my phone has been acting weird since last night, I was playing minion rush and all of a sudden it turned pitch black! So I charged it for a while and it would turn back on, then I realized that the iPhone can boost it up by pressing the home button and power button, so I did that, the logo appeared still no difference then I realized I can see the screen with a bit of lighting on it. So I turned the brightness up and it worked but it was weird because the brightness was at 50% like always! And I tried turning auto brightness off and on to see if the screen changes brightness like it normally does, and it didn't! So I'm guessing there's some sort of bug on the phone? What's going on? Please help!
Ps I dropped my phone in water like 2-3 weeks ago but made sure that all the water came out I put my phone in the sub for a while so all the water will vaporize and put my phone in ride so all the water will come out. But my step mom dropped hers in the toilet a year ago and to this day the phone has no problem! It works fine!

If there is no protective film attached to the screen that could cover the sensors on top of it, my guess would be a "waterbug".
To make sure this is not software related, set it up as new device without using the latest backup. If still no luck, get it serviced because the water damaged your device.
Setting up as new device is explained here:
http://support.apple.com/kb/HT4137

Iphone 4s ios 8.1.2 auto brightness auto dim in bright place

Hi,
my iphone 4s with ios 8.1.2 got auto brightness problem.
when i turn on the auto brightness function, it will automatic go to minimum brightness. i try under sunlight also get same result. may i know how to solve? thank you

Hello there hebe2003,
It sounds like your Ambient Light Sensor keeps automatically dimming the screen when you have that function turned on, no matter the light conditions. I would recommend these troubleshooting steps from the following article, named:
Get help with the screen on your iPhone, iPad, or iPod touch
If you have a screen protector, try removing it. Try removing your case if it includes a screen protector.
If you see the issue in multiple apps, restart your device.
If restarting doesn’t fix the issue, restore your device.
If you still see the issue after you restore, contact Apple Support.
Thank you for using Apple Support Communities.
Take care,
Sterling

IPhone 5 with iOS 8 - Auto Brightness too dim / dark

Hi all,
I just updated my iPhone 5 to iOS 8 and the auto brightness makes the screen too dark and hard to read. This was not an issue with iOS 7 on my phone. I've tried using some of the calibration tips online, but none seem to help.
When I am outside, it's fine, it will automatically adjust the brightness all the way up. The issue is inside, then the auto-brightness will make the screen too dim to be able read very well.
I know I could turn off the auto brightness feature and manually adjust the brightness, but I really liked the feature with iOS 6 and iOS 7.
Is anyone else having this issue? Any tricks I could do to fix this, or is this just an issue with iOS 8 on iPhone 5s? It would be nice if Apple gave us more control with auto brightness, like maybe letting us set the min and max brightness when it is on auto.
I did see this post from jedi31780 where his iOS 8 auto brightness isn't adjusting at all, but other than that, I haven't see any other posts online about this yet.
iOS 8 Brightness
Thanks

Thanks! I went into settings under brightness when I was in a room where I felt the iPhone was too dim and I moved the brightness up till I was happy with it. it now uses that as a baseline and adjusts from there instead of where it was before, so no longer too dim. I thought I already tried that before, but either I adjusted it again to thy the calibration steps, or maybe I adjusted it from the "control center" screen and maybe that one doesn't save.
Either way, all is good now. Thanks for the tip!

Brightness slider on iphone 5 doesn't work (NOT auto-brightness)

With Auto brightness switched off, sliding the brightness bar from left to right brings little or no change in the brightness of the screen. The screen is always in highest brightness. IT flickers sometimes to a lower brightness but strangly if I shake the phone or tap the brightness changes and comes back to very bright.
Not seen anyone raise this issue. I think there is a hardware defect with gyro someway afffecting the level of brighntness. I could be wrong. Has anyone else seen this issue before ?

I turned to the service provider, they did everything they could. I inserted my simkarty in another Iphone 5 and everything worked well. Today I changed the operator and the problem remained. All operators in our city supports 3G and my previous Iphone 5 worked in the network. Maybe the problem is with the defective module 3G?!

Hi, my iphone's display appears pale yellow in colour when compared wit my friends' iphones' display which looks bright white in colour. When I took it to the apple store, they said that the display of few the iphones differs. Is that true?

Hi, my iphone's display appears pale yellow in colour when compared wit my friends' iphones' display which looks bright white in colour. When I took it to the apple store, they said that the display of few the iphones differs. Is that true?

Thank you. Is there any way that I can check whether it is a duplicate display? I am asking this because I got this phone from my friend.

My iPhone 4S keeps changing/ resetting the brightness to a very low level and I have turned off the Auto brightness button and restarted for weeks.

My iPhone 4S keeping changing the brightness on its own and I have already turned off the auto brightness etc and restarted multiple times for several weeks. I can't see the screen to answer calls etc . Really annoying

Is the battery drained after it shuts itself off?
Did you already try to set it up as new device?
How to back up your data and set up as a new device

Why does my iPhone arbitrarily brighten, to the point of decreased resolution, despite my having turned off auto-brightness and setting the brightness to maximum?

Why does my iPhone arbitrarily brighten, to the point of decreased resolution, despite my having turned off auto-brightness and setting the brightness to maximum?

Could be a hardware failure.
Restore the iPhone, first from a backup, then as new, and see if the issue persists. If it persists when you restore as new, then there's a hardware issue with your phone and you need to bring it to an Apple store to be evaluated.
~Lyssa

Auto brightness isn't on my iPhone 5 ios7.1.1

My display was broken and I change it and now on the wallpaper & brightness it's not auto brightness it's just manually do anyone know why is this ?

Try this: https://discussions.apple.com/message/24630692#24630692
tt2

Display Auto adjust brightness acting weird and flickering

Last couple of months I get a fair amount of flickering on my screen. As far as I can tell, there
is no specific area that it is flickering in. After checking my settings for Auto brightness,, I find that
the box that is there for ticking off "Automatically adjust brightness" is unticked, and the brightness is
moved to around the 3/4 brightness area. I am in my basement which is fairly dark, so basically I am
trying to find out about the flickering that goes on, and have a feeling that when the brightness is diminished, it
causes/caused the flickering. So, I raised the brightness to extreme(right to the end of the scale) and continue
to have the box "Automatically adjust brightness" UNCHECKED. Sooner or later,, something must trip off the
Autobrightness,, because I eventually notice the flickering going on,, then I go to my settings to check the brightness,
and find that the slider is back to 3/4 and still the Autobrightness box is Unchecked. This happens all by itself.
Basically , #1,, whether it is on Auto or Not,, I shouldn't get any flickering, and #2,, my display shouldn't on its own
adjusting automatically the brightness by itself, unless I check the box correct? How can I get my screen brightness
to stick ?

To close out my original post, I never did managed to solve my flickering problem. I did every trick in the book, including SMC resetting PRAM etc. So, just as I had given up trying to fix, low and behold, my left side of the
screen one fine morning became rather dim. I knew that something , like backlight had gone on it. So, I still had
lots of warranty, brought it in. This time, because of it being a rather obvious defect upon looking at my screen.
The genius ordered a new LCD and backlight .
So far, no flickering, however, I still have the brightness level that drops down from a full brightness, no matter if I check off "automatically adjust brightness" or not. This being in a relatively dark environment.
I can imagine that there are many people still with this problem, with no obvious solutions that are 100 % effective.

Auto brightness

the auto-brightness DOES NOT WORK. useless and pointless if I have to manually adjust myself. please let me know if this function is working for you

Hello Aloon,
I recommend following these steps when the brightness is not automatically adjusting:
Display does not adjust brightness automatically
The ambient light sensor brightens the display when using the iPhone in brightly lit environments, and dims the display in low light. To test this sensor, do the following:
If the iPhone is in a protective case, remove it from the case. If there is a protective film on the display, remove the film.
Verify that the Auto-Brightness setting (Settings > Brightness and Wallpaper) is set to ON, and that the Brightness level is set near the middle of the slider.
Press the Home button to return to the Home screen and then press the Sleep/Wake button to lock the iPhone.
In a bright environment, cover the top third of the iPhone to block the light, then press the Sleep/Wake button or the Home button to wake the phone. Slide the slider to unlock the phone.
Notice the brightness of the screen and application icons; they should be somewhat dimmed.
Remove the cover from the top of the display and in a few moments the display should get brighter.
Learn more about the brightness setting.
My issue is still not resolved. What do I do next?
Contact Apple Support.
You can find the full article here:
iPhone: Hardware troubleshooting
http://support.apple.com/kb/TS2802
Thank you for using Apple Support Communities.
Best,
Sheila M.

IPhone display auto brightness

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