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Old Dec 28, 2012, 06:56 PM   #1
Bobby Corwen
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iPhone 5 keeps phantom switching brightness from high to low randomly.

My iPhone 5 keeps switching from one brightness level to another.

Like once in a while I will change it, and then randomly it might revert back to a previous brightness setting.

Has anyone experienced this type of glitch and inconsistency?

It's kind of annoying...
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Old Dec 28, 2012, 07:16 PM   #2
Frenchjay
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Quote:
Originally Posted by Bobby Corwen View Post
My iPhone 5 keeps switching from one brightness level to another.

Like once in a while I will change it, and then randomly it might revert back to a previous brightness setting.

Has anyone experienced this type of glitch and inconsistency?

It's kind of annoying...

Yes, I've had this a few times when unlocking from the lock screen. I had to change the brightness back up in the settings. I have auto brightness off BTW.
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Old Dec 28, 2012, 07:34 PM   #3
jrodsep
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Happens to me sometimes. Only on the lockscreen. I relock the phone and wake again to fix it.
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Old Dec 28, 2012, 09:01 PM   #4
HazyCloud
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Quote:
Originally Posted by Frenchjay View Post
Yes, I've had this a few times when unlocking from the lock screen. I had to change the brightness back up in the settings. I have auto brightness off BTW.
I would get this same issue, but since I've had auto brightness on I haven't noticed it now that I think about it.
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Old Dec 29, 2012, 10:11 AM   #5
Bobby Corwen
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It happens both with auto brightness off, or on. It's not an auto brightness thing. The whole brightness setting literally changes across the drag bar.

And usually seems to go to a previous point it used to be at shortly after being changed.
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Old Dec 29, 2012, 10:16 AM   #6
Davejprince
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Happened to me at the lockscreen several times, it's been there since iOS 6.0
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Old Dec 29, 2012, 10:30 AM   #7
Bobby Corwen
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Between this and the inconsistent alert behaviors I'm starting to get a bit peeved at the software designers in charge of these elements.

Just like what's his name got fired maybe these guys should face a bit of the ol "we'll go ahead and pay you for today but..."

I mean how hard is it to make, in an era where our computers send us to Mars, how hard is it to make it ring when you get a text and to stay that way. Or to not spastically change your brightness meter.

I dunno how programming works, but I know relative to how many pieces of software execute simple things flawlessly, that this is well within reason to ask that it works how its supposed to just work.

I mean this is quite ridiculous.

My old Palm Treo would ring when it was time to ring.

Step your quality control up Apple. And it's been years time this ringer thing happened and STILL happens?!

Who do they have to fire to make sure this gets solved?
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Old Dec 29, 2012, 11:02 AM   #8
syd430
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Er it's not a bug. It's the brightness adjusting to changes in ambient light. Auto brightness works differently in ios 6. You have to "train" it at different preferred levels in order for it to learn how it should adjust in certain conditons. You will also see the slider moving towards that preference if you have the settings open.
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Old Dec 29, 2012, 11:20 AM   #9
aztooh
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Quote:
Originally Posted by Frenchjay View Post
Yes, I've had this a few times when unlocking from the lock screen. I had to change the brightness back up in the settings. I have auto brightness off BTW.
Quote:
Originally Posted by jrodsep View Post
Happens to me sometimes. Only on the lockscreen. I relock the phone and wake again to fix it.
I have the same thing happen to me....like jrodsep said, just hit the sleep button again and then wake it back up. No need to go into the settings when this happens. Definitely annoying though.

----------

Quote:
Originally Posted by syd430 View Post
Er it's not a bug. It's the brightness adjusting to changes in ambient light. Auto brightness works differently in ios 6. You have to "train" it at different preferred levels in order for it to learn how it should adjust in certain conditons. You will also see the slider moving towards that preference if you have the settings open.
When you don't have auto-brightness on, and it randomly dims the screen when unlocking the device, it most certainly is a bug.
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Old Dec 29, 2012, 11:21 AM   #10
Btrthnezr3
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I've had the same thing happen but have also "solved it" by hitting the sleep button and then waking it back up.
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Old Dec 29, 2012, 11:27 AM   #11
Six8
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It's very annoying
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Old Dec 29, 2012, 01:34 PM   #12
AppleBoyFreak
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I have something similar. If I click the lock button too quickly my iPhone's brightness will go from 100% to the minimum you can set it to until you go to settings where it shows the bar still at 100% but when you touch the bar the brightness goes all the way back up.
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Old Dec 29, 2012, 11:54 PM   #13
Bobby Corwen
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Originally Posted by Btrthnezr3 View Post
I've had the same thing happen but have also "solved it" by hitting the sleep button and then waking it back up.
I doubt this will work but ill give it a try next time it happens....
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Old Jun 30, 2013, 07:06 AM   #14
Samz87
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same issue with brightness

I have been having the same problem with brightness suddenly going to low - really annoying and just started for me. July 2013
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Old Aug 28, 2013, 05:14 PM   #15
danghoff
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Auto brightness NOT on. Screen dims. Must access setup and touch the setting. It restores. Irritant.
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Old Aug 28, 2013, 06:14 PM   #16
joec1101
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Apple is aware of this problem - it has to do with the light sensor on the device being defective. I've had mine replaced once and two other people I know have had theirs replaced as well for the same problem.

You should make a Genius Bar appointment and get it replaced while it's still under warranty.
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Old Aug 28, 2013, 06:30 PM   #17
pmau
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Originally Posted by Davejprince View Post
Happened to me at the lockscreen several times, it's been there since iOS 6.0
I also believe it's a software issue. My iPhone 4 has the same issue and it worked before. I don't think it's specific to the iPhone 5.

My 3GS on the other hand works as it always has been.
Maybe the hardware sensor for the 4 and 5 is the same and the 3GS uses an older sensor and different software drivers.
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Old Aug 29, 2013, 06:24 AM   #18
Spaz De Andrew
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Please thumb this up so the people can see;

It's either a bug or some kind of feature, activated by pressing the lock button and the home button in rapid succession. Not too fast or it will take a picture of the screen, but slightly slower.

Have your iDevice on the lock screen yet awake, then press lock and home button quickly. This will dim the device until the next time it is locked.

Hope this solves the question,

-Spaz De
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