IPhone :: Screen Backlight Does Not Always Turn On
Apr 17, 2012
Lately I've had trouble with my iPhone 4S backlight. The backlight does not always turn on when I wake the phone from sleep.
I've tried turning off the auto-brightness, but it does not help, the same behaviour continues. When the backlight is not on toggling the auto-brightness button or adjusting the brightness or covering the ambient light sensor have no effect, the backlight stays off. Usually it just randomly turns on after I put the device to sleep and wake it up. And no, my cover does not block the sensor either.
Info:
iPhone 4S
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Apr 10, 2012
i have tried resetting it, and also, restoring it and it wont turn off
Info:
iPhone 4
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May 1, 2012
Phone display apple icon and backlight is on. Phone won't turn back to home page. What can I do? Battery also displaying low on charge.
Info:
iPhone 3G, Windows7, 16GB
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Apr 24, 2012
It's about 2 months that I have a Blackberry Bold 9900, and I am new to Blackberry overall.I am having trouble turning off the backlight. The light stays on all the time. When I lock my phone, the backlight will go off for 2 seconds and then it'll come back on. I tried playing with all the settings in the options Screen Display, and nothing seems to turn it off.
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May 20, 2012
My iphone4 screen went black but i can see that the backlight is still on. i tried to plug it in but still nothing happened. i tried the hard reset but no apple logo came out. i cant use it. i want it to be fixed but there is no apple center near here.
Info:iPhone 4, iOS 5.1
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Mar 7, 2010
This has just started happening since yesterday the backlight will not turn off so the battery only lasts around 8 hours before running down .
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Nov 17, 2011
I've just bought a 701 and the backlight won't turn off unless I lock the phone, it just dims down a little after the "Light time-out" period.I've done the "Delete data and restore" reset 3 times already, and left the memory card out afterwards. Is this normal and nothing more than a bug?
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Jul 5, 2012
The Backlight on the Blackberry Curve 8520 Will not turn on. I have tried everything that i know and still nothing.
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Jul 29, 2010
I just bought a brand new blackberry curve 8900 and i've noticed that the keyboard backlight won't come on. I've read its supposed to detect dim light and turn on, on its own but I can be in a pitch black room and it wont turn on. Also i read that if you cover the led indicator light it should come on, tried that and it didn't work. I also went to the keypad and display settings and turned diming off and pretty much no matter what I do I can't get the backlight to turn on.
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Aug 9, 2011
Tried the options button and the key lock button on top of the phone....nothing will turn my backlight off and drains my battery. I am a new blackberry user.
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Apr 24, 2011
I can't get my Xoom to turn on the backlight. I can see that everything else works, by using reflective light I can see enough to do some simple actions, like changing brightness settings, and accept the shutdown dialog.I have tried anything that I can think off; turning on and off automatic brightness, cold reset, and shutting down and restart.
There doesn't seem to be a hardware error. I managed to get it to work again for a while yesterday, but I haven't been able to repeat that today.
Does anyone have any idea on how to turn the backlight on?
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Jun 30, 2010
My screen backlight will not turn off unless I put the phone in a holster or cover. I've tried all the settings and nothing works.
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Feb 8, 2010
why does my blacklight go dim when i turn it sideways....
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Oct 3, 2012
This had been bugging me for 3 days now. I don't have another phone to use. I've tried to repair the software using Update Service but it do no good. After pressing the On button at the top of the phone, the phone will vibrate after a sec and then there's a backlight but the "Sony Ericson" logo does not appear and after about 6 seconds the backlight will fade.
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Sep 11, 2011
I have an issue in my nokia 5130.Some time the backlight wont turn off even key guard is locked; I tried to find some setting related to this, but unable to find any. This issue will temporally resolve if you switch off and switch on thecell.
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Jan 16, 2012
just got the razor while charging the phone the backlight wont shut off and i cant figure out how to turn it off
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Jan 3, 2013
Is it possible to control the button backlights? It would be really nice to be able to turn them off. Ever try to read a Kindle book or watch videos in the dark? The buttons are really bright compared to the screen and they hurt my eyes. I could find any control in the settings. Any chance of adding that feature
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Aug 26, 2011
past one week my E75 screen has decided to start playing up. The light on the keyboard lights up fine but the screen backlight only comes on when I push down hard on a certain part of the screen or give it a good whack. Anyone experienced this before and know how I might be able to fix it?
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Jul 22, 2010
Is there any way to turn off this ugly keyboard backlight on my Vivaz pro? Or just fade it down, it doesn't have to shine so bright! + drains the battery, please put a on and off switch for the keyboard backlight in the next update, I have already turned off my 3g because my battery doesn't even last 1 day. And one more thing, I think it should be possible to chose if u want the display to auto rotate or just stay in landscape mode all the time. And also, is it possible to make the standard Symbian home screen in landscape mode?
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May 7, 2015
I've a problem with my new sony product, I was in swimming pool after taking some photos the phone stop working, and the screen blinking and can not boot up the phone, after checking it I notice that there is some water in the back camera cover.So i waited about 5 hours and tried to recharge it, then trying to boot it I heard the startup sound with no data on the screen!I noticed that the screen/touch working but there's no back-light!
then I shuttled it down and wait again, after booting the screen has no data and the startup sound works, ( Also there is no vibration anymore! )
I tried to use the small off button but no way! I've also upgraded it via PC Companion but still have the same issue!!I don't know what to do the phone is new...
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Jul 19, 2010
I have a N95 (N95-1), and this morning I turned it on after it went flat, and the screen backlight isn't working. The keypad still lights up, and the LED screen seems to be fine.I've tried everything up to a factory restart. Does anyone else have this problem, or know how to fix it? It's really quite annoying!
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May 20, 2012
My screen backlight doesn't come on at all , have tried goin in options and settings and changin the brightness still doesn't work.. not able to see anything hav to strain my eyes where this is no backlight to see
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Aug 7, 2010
My N95 has been on the frits! It sometimes shows garbles colors, or a weird scanline diagonal draw of the screen. Sometimes if I slide it enough times the screen is drawn correctly but only the top left corner. Other times it just sits there on a black (no backlight) screen. Any reason why it's doing this?
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Nov 27, 2012
I just got this phone in june and this is the secon time this happens, the phone would turn on and the lights everything on as if it was really on, but cant see the screen. A backlight is on but you cant see whats going on the phone. the only thing you see is a black screen, but it is ON you can feel the vibration everytime is press the screen, i just cant see the screen. i dont know what to do and im unable to attend a store to fix it
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May 27, 2014
Yesterday, I dropped my nexus 5 and now my screen won't display anything any more. But the backlight works and so does phone (i know the phone still works because my alarms still are going of) What do you (people on the forum) think is wrong with my phone. Do i need a whole new display and touchscreen or is there just a wire that needs to be reconected?
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Feb 3, 2012
my phone was working perfectly fine until i upgraded it to ICS. Now i'm not able to unlock my phone at all at certain times. If i try to unlock i see a blank screen with the backlight on. Unable to access homescreen at all. If i leave the phone for sometime and then if i try unlocking again it works fine. Having this problem with latest version available in my country (4.0.4). I tried reinstalling the firmware using update service still no effect.
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Feb 14, 2012
I have had my Blackberry Torch now for about 10months and last week i think i may have got it slightly wet after i tried to answer the phone when getting out of the bath. Since then it has been ok but last night when i slid open the screen everything went black. As soon as i slide the screen shut it works again! This basically means that i can only use the phone as a touch screen phone when it is down (which isn't good for me as I always text using the keypad when it is slided open).I called o2 and they said before they send it off to be repaired that i should try upgrading all of the latest BB software as that might fix it. I have never had any upgrades but will this really be able to fix my screen? Is there any other way i can try and fix the phone myself?
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Feb 9, 2012
I am using xperia neo v mobile. When I lock my screen using the power button the backlight gets off (common in all mobiles) after 10 to 15 sec the back light glows again.
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Dec 26, 2011
just picked up the Motoactv, and I've noticed the backlight does not turn on when I use the device? The screen still displays properly but without backlight.
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Oct 27, 2015
My eyes are kind of damaged and I need to know if the Nexus 6P phone screen uses PWM for backlight dimming. Majority of people never notice it but I'd say 5% of people have issues caused by it (headache, migraines, seizures, etc.) Kind of like the CRT flicker but in modern LED backlit devices.
To test use a high end camera/DSLR with adjustable shutter speed and look for black lines on the phone screen when adjusting the camera's shutter speed.
Info about PWM: [URL] ....
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Sep 8, 2013
My girlfriend and I both bought 1020's and they both show the backlight when hitting the power button. It happens when the device is at whatever current screen youre on, after you hit the button the screen closes as should, but then I get a glimpse of backlight.
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