Urgently needed(backlight not working)

Hi everyone...,,,i have this fairly used mac ibook g3 laptop...the screen is displacing perfectly well but the backlight is not working that is it is not coming up on the screen....please i need an help

You will probably need to have the upper assembly replaced; if you're lucky, maybe it's just some loose or disconnected wires. Either way, someone needs to open it up and work on it. Contact your local Apple Store or another authorized repair center:
http://www.apple.com/buy/locator/service/
However, the cost of doing a full screen replacement is probably more than an iBook G3 is worth. You (or someone) should be able to pull the data off the machine and have it ready when you buy your replacement.
You can double-check my figuring here by asking in the appropriate iBook forum here:
http://discussions.apple.com/forum.jspa?forumID=915

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Problem with Macbook Pro early 2011, webcam not working in any apps and windows 7 or 8 on bootcamp, keyboard backlight not working?

Hi Guys
I recently bought a second hand early 2011 Macbook Pro 15 inch and are having 2 problems. The first is that none of the apps detects my webcam at all, the second is, i have Windows 8 installed on bootcamp but are unable to get the keyboard backlight to work in 7 or 8. The backlight works perfect in os x 10.8.5 though. I need a little bit of help guys.....

Go to Apple Menu / About This Mac. Click on More Info ... next on System Report. In the left hand column, under Hardware, select USB. The right side will show the USB Device Tree. Look through that and check for "Built-in iSight". That is your camera. If it is not listed the camera is not working.
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Macbook Pro 17inch late 2011 keyboard backlight not working

Recently near the end of sum me 2014 I only noticed the backlight keyboard not working at all. I have done the following to try and rectify;
1. Reset SMC
2. Rest NVRAM
3. Disconnected battery and the above
4. hardware test online, result showing no issues found.
with all outcomes proving nil. Pressing Fn + F5 or F6 does show the brightness either increasing or decreasing but with no light. I then opened her up and disconnected a cable that was to the LHS of the RAM boards but this only powers the White Sleep LED and not the backlight keyboard on this 17inch model. My next step is to remove the mother board and find the actual cable that does power the backlight LEDs and ensure that it is connected. Similarly around the same time I noticed this with the backlights the fans were running fast. However the weather has gotten cooler and the mbp is not running fans as it was when it was in the warmer months.
Do I have to remove the motherboard and actually make sure that the connector for the backlights hasn't been dislodged?
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keyboard-backlight-less
2.5Ghz Intel Core i7
8GB Ram
OSX 10.7.5
SMC Veresion 1.70f5

Thanks Ogelthorpe, I found an excellent video (not in english but it didnt matter) https://www.youtube.com/watch?v=8HNAGodYMNA .
What I found was that the keyboard backlight is intergrated into the black plastic cover that is between the motherboard and the back of the keys/LEDS and its all one piece back to the connector that connects to the motherboard under the LHS fan. I need more details to find out if the LEDS are controlled by a chip or what, but it seems to me that I need to visit an apple store/repairer, however this will be really difficult for me as Im in an isolated location. If there are further tests that I can conduct on my own, I would be grateful. Even if there are tests that Apple themselves conduct to find out what the problem is
Peter

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The backlight on my keyboard is no longer working. When my backlight 1st stopped working it allowed me to toggle the brightness level to no results (I even tired lab kit.) After I resetmy PRAM and SMC I couldn't even try to toggle the brightness. The illumination settings in System Preferences disappeared as well. Is there anyway to fix this without having to bring my computer into the Apple Store? I use this machine for both work and school and cannot be without it for a few days. I am currently running Lion.

Are you under warranty? If so, call Apple and report the problem and get a case number. If your warranty is about to run out, it is important to get a case number to document that the problem first occurred under warranty so that Apple can eventually fix it under warranty.
You have already tried the usual cures--resetting the SMC and checking your settings for the keyboard. If LabTick also does not work, then you likely have a hardware problem of some sort.
It might be worth a trip to the genius bar to have them take a look at it and maybe run their hardware test, just to get a diagnosis and repair estimate. You can also ask how long the repair will take and see if there is any possibility of having it repaired while you wait. Once you know what's wrong and what it might take to fix it, you can delay the actual repair until a time that is more convenient to you.
Right now there's no way to tell what's wrong--it may even be something as simple as a cable that needs to be reseated. If so, it should not take long to fix.
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Hi all,
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hi robk87,
Welcome to the Lenovo Forums.
If you get the no backlight issue after you turn ON the computer and adjusting the brightness (via Fn + up/down arrow) have no effect then you may need to replace the entire screen.(looking at the spare parts, the B570 uses a LED-backlit LCD display - these types of display doesn't have an inverter which powers up the backlight).
- Link to picture
- Sample item
Video Guide:
Lenovo IdeaPad B570 Laptop Screen Replacement
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I dropped my 3gs in water; backlight not working

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What would you like us to do? You've damaged your phone by dropping it in water. It's unlikely to work again.
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Keyboard backlighting not working when using Windows in Boot Camp

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Good day! A few days ago has turned off keyboards backlight of lenovo Z500. I tried to reboot the laptop, but backlight still doesn't work as before by pressing FN+Space buttons. I hope this is a software bug and I could solve it without help of service center. But I can't solve it without your help, as the website and the Internet has no effect, and I have no desire to reinstall the system because of backlight. Maybe someone knows how to make it work again?

Hello,
I lost my keyboad lighting, after replacing my SSHD to SSD in my laptop.
1. I assembly with manual and checked 2x keyboard cable( power) is connected.
2. Tried to reinstall LEM(lenovo energy management).
3. Googled this problem, but didnt find similar.
Have you any suggestion, what should I do before using warranty, becouse I'm really need computer to work(I will do this anyway, my touchpad skin is peeling of )
Here is video how it look like: http://youtu.be/IpGe3gAAAXA
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Moderator Note; subject edited; post merged in

Bluetooth, iSight and Keyboard Backlight not working. Please help!

My Bluetooth stopped working along with my iSight and Keyboard Backlight. I first noticed the weird sign over the bluetooth icon, and it read "Bluetooth not available". I payed no attention to it for a while until I tried to take a picture with Photo Booth and I read "No camera found", for some reason I tried to dim the backlight on the keyboard and a blocked sign appeared under the brightness level, not letting me do anything (Later I was able to use the backlight with the LabTick app). I have tried everything. SMC, PRAM, NVRAM, logging as diferent and new users, booting in safe mode... every solution I have found on the internet has been tested by me. Then I read this about the Hardware Test solution, and surprisingly after performing the Hardware Test no problems were found! So basically my MacBook Pro (mid 2010) is not having any trouble of any sorts with anything. Then why can't I use Bluetooth, iSight or Key backlighting (which only works through LabTick). Given the fact that the hardware test shows no problems I am not comfortable with the idea of taking it to repair. There MUST be something I can actually do to fix these issues.
Does anybody have any idea? I repeat, these are NOT WORKING, NOT FOUND AND NOT AVAILABLE.
- Keyboard Backlight (Only works through LabTick)
- iSight Camera (Not found by any software)
- Bluetooth (No info appears on the system profile, the icon on the menu bar is completely gone)
All three issues happened at the same time, the night before everything was working perfectly fine.
If anyone could help... please!!!
Summary:
MacBook Pro Mid 2010 (http://support.apple.com/kb/SP583) Unibody, can't take out the battery.
Solutions tried:
- Reset SMC: Turning on while holding Shift + Ctrl + Option + Power Button (This makes my MacBook forget about the battery and start up with really loud fan noise, battery icon appears with an X on it, keyboard backlight buttons work, they show brightness level on screen, but the actual light won't work, no bluetooth, no isight)
-Reset PRAM and NVRAM: Turning on while holding Option + CMD + R + P (I have waited for 2 chimes, 3 chimes and 4 chimes at different times, nothing happens. Light, bluetooth and isight are still gone)
-Holding Power Button for 10 seconds, 20 seconds, longer... nothing changes.
-Creating and logging in as new admin user, nothing changes.
-Deleting the bluetooth.plist file and powering off and on again, also rebooting
-Deleting the SystemConfiguration folder, powering off and on again, also rebooting
-Installing "blueutil", didn't help at all, turned it off via terminal with command blueutil off.
-Performing Apple Hardware Test - Shows no erros or problems on any area after one full hour of testing (Performed the extended testing)
-Leaving it powered off overnight
Please anyone help meee!! I can't afford going crazy!
Thank you so much in advance!
Alvarock.

****UPDATE***
Hi guys i got across this forum after searching for bluetooth, front camera and the most ANNOYING no lost keyboard backligth.
After run all the test, procedures, tweeks and, and everything i remenbered that once i sent my MBP to repair at you bring i break, turns out that the little ribbon flex connector coming from the mother board ( from the rigth to left) was loose since the adhesive wich they used shrink do temp changes, anyhow y popped out the glas and found the flex cable totally sticked to the glass pulling out of the pcb board connector, reinstalled it smoothly and that FIXED the camera, bluetooth and keyboard backlight!..
thats it. hope i helped some frustraded owner.

Screen backlight and keyboard backlight not working

Yesterday I turned on my old but proud PowerBook17" and the *screen was black*, but you could barely see everything. *Also keyboard backlight is not working.*
I read many many forums and all say that black screen caused by inverter failure, but in my case keyboard lighting is also dead, so I wonder *if this is something different* and not the inverter.
I would appreciate any advises or ideas cause I love this machine..
Thank you in advance!

Same problem here. I initially thought the auto-brightness problem had been fixed in 10.7.3, but sadly it hasn't. The auto-brightness works when the Mac starts, but I find it loses control and fails after wake from sleep.
I have telephoned AppleCare several times but they are not aware of this bug. They think a PRAM reset cures it, but it doesn't. As soon as the machine goes to sleep then auto-brightness fails on wake.
I have used the Apple Form to report the bug. It might eventually get fixed if others would kindly report it as well please. Here is the link:
http://www.apple.com/feedback/macosx.html

Keyboard backlight not working...

Hi everyone!
I am having a problem that appears to be shared by other Powerbook users who have the luxury of a backlight for their keyboard: I have updated OSX and now the option of automatic illumination has gone from the Keyboard and Mouse preferences window?
Does anyone know how this can be fixed? I have only had my laptop for 13 months and so far my hard drive has died and the system has crashed completely three times, I would be devistated if this is the logic board now? If you think it is please lie!? Only joking of course, but if anyone has a neat solution I would love to know!
I have already tried to set-up a new user, and have removed the com.applebezelservices.plist from the library, but no joy so far.
I use this luxury lots, since I work at night. Any help would bring festive cheer to me and my children to be!!!
Regards,
Simon

Same problem here with my powerbook 15" 1.5ghz.
It seems that this problem is common with a lot of people as I can see from the forums that I went on.
The ambient light sensor seems defective since a software update (probably the 10.4.7). Results are that the auto-dim of the screen does not work all the time, the keyboard no longer backlight up in dark condition and the sleeping status light blinks for no reason or it stays on when computer is open.
I've tried to zap de PRAM and reset PMU with no results.
I've read that some people has a loose connection between logic board ans ambient light sensor... could that be the reason as you mention taht they told you so?
I've read that some people with the same problem had their Logic Board changed as they were under warranty... but for the rest of us that are not on the warranty anymore... no answers from Apple. I think that they should open a repair ticket and that everybody who has this problem should contact Apple

Keyboard backlight not working - settings missing on MacBook 2,1??

I have a macbook 2,1 that was given to me by a friend about 6 months ago. It is in perfect condition except some seperation around the edges. So, I took into the Apple store a couple of days ago and they replaced the entire 'inside' of the macbook; meaning screen surround, keyboard and surrounding 'faceplate'. (Excuse the incorrect terminology) I also mentioned to them that the keyboard didn't have any backlighting (at least I have never seen it) and the tech said would also be repaired as a result of the keyboard replacement.
ANYWAY, I am home and the keyboard backlight is still not working. I searched mac help and found the following:
To set keyboard backlighting for a portable computer:
Choose Apple menu > System Preferences, click Keyboard & Mouse, and then click Keyboard.Open the Keyboard pane of Keyboard & Mouse preferences
To enable backlighting, select the “Illuminate keyboard in low light conditions” checkbox.If you want to automatically shut off the backlight when your computer is idle, drag the slider to indicate when to turn it off.
The only thing I saw was an option for bluetooth - n/a, keyboard shortcuts settings to change shortcuts..obviously and the keyboard setting which only gives me the choice to
1. change the key repeat rate
2. change the delay until repeat rate and 3. a box to check/uncheck if I want to use the f1, f2, etc as the standard function keys.
There is also a button at the bottom left corner which says 'modify keys' which I believe is n/a.
I should also probably mention, when searching help, it also said "The light sensors are located in your computer’s speaker grilles, so make sure the grilles are not covered when you use your computer in low light conditions" . I have no speaker grilles (that I can see) but my speakers work. and it says; "IF the keyboard on your computer can be backlighted, you can set it so the keys can be visible in lowlight conditions". I guess the keyword here being IF so maybe this mac isn't supported for that but I think that it is from what the person at the Apple store told me after looking up my serial number.
Just to add, I did search the forum and found close to the same problems but with different types of macs so I thought I would ask. I am still learning the ins and outs of using Mac so I hope I asked the right questions and I'm not over expanding on the question too much.
I am sure there is a simple explanation...maybe?! So if someone could enlighten me, I would be very grateful!!!!
Thank you!!!!
Sarah

welcome

Urgently needed(backlight not working)

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