Brightness keys not working anymore and screen frequently flashing black and staying black!

I had my macbook pro in for repair twice last month. They replaced the logic board and had to take the screen off and look at it due to there being a potential crack. Now, when i got the macbook back the first time, after replacing the logic board, everything was fine, the brightness keys did not work at first but a restart fixed the problem. 5 days later i had it back in so they could look at the screen because i thought there was a crack on it, which turned out just to be some debris on the inside! Still had to pay a 50 quid inspection charge!
ever since the macbook has returned from this the brightness keys have had a delayed response in that, when i increase or decrease the brightness it took about 10 seconds for the screen to actually change. This happened everytime.
A few days ago for no reason, the screen started to occasianally flash black. It wasnt a problem at first, but sometimes it flashes back and stays black so i have to restart my computer. Sometimes when returning from sleep it stays black as well. On top of this, the brightness keys have completely stopped working all together now.
My laptop is not in warrenty anymore, it ran out after i got it back the second time. I was too busy with work and i needed to use the laptop so i couldnt really sort anything out.
Is there any policy saying that if the laptop comes back from repair and has new problems not caused by the customer, but by the repairer, then they will fix it free of charge?
Many thanks

nobody can help??

Similar Messages

  • Brightness key not working with Dell monitor

    Should my new wireless keyboard brightness keys be working with my Dell monitor?

    Hello I managed to solve my problem of brightness key not working by Installing the Intel HD Graphic 3000 Driver from Intel official site. So if your Graphic card is Intel HD 3000 Graphic and your system is 64 Bit OS then you can follow the below link to download it and install.....https://downloadcenter.intel.com/download/24971/Intel-HD-Graphics-Driver-for-Windows-7-8-64-bit Note :- This Graphic driver only support the following intel Processor And If Your Are still running the built in intel graphic card, then only download it and install at you own risk.Supports Intel(R) HD graphics on:            2nd generation Intel(R) Core(TM) i3 processor            2nd generation Intel(R) Core(TM) i5 processor            2nd generation Intel(R) Core(TM) i5 vPro(TM) processor            2nd generation Intel(R) Core(TM) i7 processor            2nd generation Intel(R) Core(TM) i7 vPro(TM) processor            Intel(R) Pentium(R) Processor  900/B900/G600/G800 Series            Intel(R) Celeron(R) Processor 700/800/B700/B800/G400/G500 Series

  • Brightness key not working after upgrading to win 10

    MY laptop has been upgraded to win 10, but after the update brightness key is not working. 

    Hello I managed to solve my problem of brightness key not working by Installing the Intel HD Graphic 3000 Driver from Intel official site. So if your Graphic card is Intel HD 3000 Graphic and your system is 64 Bit OS then you can follow the below link to download it and install.....https://downloadcenter.intel.com/download/24971/Intel-HD-Graphics-Driver-for-Windows-7-8-64-bit Note :- This Graphic driver only support the following intel Processor And If Your Are still running the built in intel graphic card, then only download it and install at you own risk.Supports Intel(R) HD graphics on:            2nd generation Intel(R) Core(TM) i3 processor            2nd generation Intel(R) Core(TM) i5 processor            2nd generation Intel(R) Core(TM) i5 vPro(TM) processor            2nd generation Intel(R) Core(TM) i7 processor            2nd generation Intel(R) Core(TM) i7 vPro(TM) processor            Intel(R) Pentium(R) Processor  900/B900/G600/G800 Series            Intel(R) Celeron(R) Processor 700/800/B700/B800/G400/G500 Series

  • My imac is not working well, the screen is  flashing.I can´t open any program.there is a monsterflashing

    my imac is not working well, the screen is  flashing.I can´t open any program.there is a monsterflashing

    Hello,
    One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
    PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
    Reboot, test again.
    If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
    Check the System Preferences>Other Row, for 3rd party Pref Panes.
    Also look in these if they exist, some are invisible...
    /private/var/run/StartupItems
    /Library/StartupItems
    /System/Library/StartupItems
    /System/Library/LaunchDaemons
    /Library/LaunchDaemons

  • Volume and brightness keys not working with new keyboard on imac

    I just purchased a new wired keyboard for imac and brightness and volume control keys not working . i have tried adjusting keyboard settings. I have software version 10.5.8. Do I need to upgrade software. Thank you for any help.

    Do you have "Automatically Adjust Brightness" check box ticked in System Preferences > Displays > Display ? If so, you can't manually adjust brightness.

  • Screen brightness keys not working

    Simple as that. Any idea how I turned this off by accident?

    Press and hold FN, on the bottom left portion of your keyboard, then press the brightness keys.  IF this causes your brightness to change it means you have enabled the f1, f2, f3 keys as the stardard function keys.
    To change it back to regular open up system preferences go to keyboard and click

  • Macbook Pro 15inch Volume, brightness keys not working (All the special F keys)

    Hello,
    I have this problem on my MBP where my Fn (Function Keys) on the top row of my keyboard don't work properly. I use these keys all the time to adjust brightness, keyboard LED brightness, pause, play and volume but they aren't working anymore. When I press F12 it shows the dashboard. I already have the 'Use all F1, F2 ect. keys as standard function keys' unchecked in System preferences, Keyboard. I am on a bootcamped MBP but mainly use the Mac OSX. This problem is occuring on Mac OSX not Windows. I have not dropped my MBP to damage it or anything like that. I have installed 16GB Ram and the Seagate Momentus 750GB Hybrid SSD a few months ago. Anyone know how I can fix this?
    Any help will be extremly appreciated!
    - Kieran/Paul

    Check the setting in Keyboard, Keyboard Tab, that the "Use all F1, F2, ect. keys as standard function keys" isn't checked.

  • Wireless Keyboard Brightness Keys Not Working

    Hello.
    Since an update a while back the brightness adjustment keys for screen brightness on my apple keyboard have stopped working. These are the F1 and F2 keys normally.
    On my Macbook Pro keyboard they work fine but the wireless keyboard keys do not.
    Anyone having the same issue or know a fix?

    I had the same problem, minor but annoying. I found the cause, It is a combination of factors. If the following are true:
    • You're using a laptop
    • You are running 10.6.x (not sure which revision, true of 10.6.6)
    • You have an external display connected
    • The external display is non-Apple, or you don't have a USB connection to an Apple display
    • You are using an Apple Wireless bluetooth keyboard
    • You have the menu bar *on the external display*
    Then the brightness keys won't adjust the brightness of the laptop's display.
    The apparent logic is that if your main (menu bar) display is external, and you're using an external keyboard, then you must want the brightness keys to control the external display. The bug in the logic is that it doesn't check to see if the external display is capable of brightness control. So, it appears that the brightness keys don't work at all. Note that Max OS X can only adjust the brightness of an internal display or an external Apple display with a USB connection.

  • Brightness keys not working

    HI friends,
    I recently bought this laptop online and everything works just fine apart from the brightness keys which are not working, it is very difficult to work under the high brightness condition.Please suggest.

    The only suggestion I can offer would be for you to install the supported operating system of W8.1 64 bit.

  • Yoga 2 13 brightness keys not working - it was TeamViewer monitor driver

    Hello, I have two Yoga 2 13's - I think both the 59403750 model. Both have the same specs.
    In one of those Yogas the brightness keys - "F11" and "F12" - do not work and it is full 100% brighness all the time. In the other (good) Yoga they seem to work OK - at least I can get the brighness down a few notches.
    When I press and hold the Fn key to get F11 or F12 to work the *seem* to do what F11 or F12 would do normally - e.g. in a word processor or browser. So it seems maybe just the brighness function of those keys are not working.
    Lenovo has calimed that this is not a hardware problem and they are not responsibile for it under warranty.
    I have done a little reading some time ago and seen something similar that was maybe fixed by installing updated video drivers. Well, that did not work - as of a couple months ago. At the time I also updated the BIOS - again no luck.
    Any ideas /inputs you might have are appreciated. Thank you.
    Solved!
    Go to Solution.

    scf /scannow 'found corrupt files but was unable to fix some of them. Details are included in the CBS.Log' and then something about 'not normally suppoorted in offline servicing'.
    I'm reading from MS Use the System File Checker tool to repair missing or corrupted system files and in the mean time I'm also doing a chkdsk /r just to make sure that's not an issue before I start trying to repair any files. Both were refirbs (still under warranty) - so who knows about the HDDs. Luckilly I may have the other one to pull files from if necessary - if it is something that easy.
    It's been doing this since pretty much the day I got it. I've never seen it work right on this one.
    I appreciate the tip to factory restore but that is always the last option IMHO. That's a lot of time for me to get this thing back the way I want it. There has to be a fix for this silliness - I'll keep working on it and write back when I know more. Thank you very much for the help. If you think of anything else let me know.

  • My ipod touch is not working anymore, the screen is totally white with no answer to the comand buttons, what should I do? Thank

    Dear Friend,
    My ipod touch stopped working since one week ago.  The screen is totally withe with no reaction of the butttons.
    I would like to know if somebody can help me to solve this?
    thank you,

    For a blank iPod or "white screen of death"
    iOS: Not responding or does not turn on
    All the troubleshooting steps in the above are likely to lead you to restoring the iPod. Follow the instructions in this procedure to the letter. Here they are, with emphasis on some easily overlooked requirements:
    Disconnect the USB cable from the iPhone, iPad, or iPod touch, but leave the other end of the cable connected to your computer's USB port.
    Turn off the device: Press and hold the Sleep/Wake button for a few seconds until the red slider appears, then slide the slider. Wait for the device to turn off.If you cannot turn off the device using the slider, press and hold the Sleep/Wake and Home buttons at the same time. When the device turns off, release only the Sleep/Wake button.
    Continue pressing and holding the Home button while you reconnect the USB cable to the device. The device should turn on.Note: If you see the "low battery" screen, let the device charge for at least ten minutes to ensure that the battery has some charge, and then start with step 2 again.
    Continue holding the Home button until you see the "Connect to iTunes" screen. When this screen appears (iTunes icon and USB connector) release the Home button.
    If necessary, open iTunes. You should see the "recovery mode" alert ("iTunes has detected a phone in recovery mode").
    Use iTunes to restore the device.
    If you do not see the "Connect to iTunes" screen, try these steps again. If you see the "Connect to iTunes" screen but the device does not appear in iTunes, see this article and its related links. 
    Select the iPod in iTunes and choose "restore from backup".
    If you still can't get it to work, you have done all you can and only Apple will be able to help.

  • Apple Wireless Keyboard - Volume & Brightness keys not working Windows 7

    Finally got my wireless keyboard working within Windows 7 but the volume / Eject / Brightness keys all do nothing - all other keys appear fine.
    I have reinstalled the bootcamp drivers for the 2nd time but still nothing. I had this all working previously but have factory restored my iMac and cant remember how I originally did this..
    Any ideas?

    Maybe you could update the Boot Camp drivers. That happened to my internal keyboard, and updated drivers some times fixed it. Other times it fixed itself after a few restarts.
    AnonMac

  • Screen brightness keys not working after 5.0 update on Windows 8.

    I believe the drivers for the screen aren't working since changing the brightness manually in windows isn't working either. There is also an error with the intel hd 4000 graphics, if that has anything to do with it. This problem did not occur before I downloaded the new drivers for windows 8.

    Same thing is happening to me as well, just posted about it 30 seconds ago. PLEASE HELP

  • Fn key not working at all (in 10.4.11 and XP)

    Hello my fn key doesn't work at all, there is no difference whether I press it or not and with that none of my function keys e.g. for brightness or volume control work at all either.
    I am on the latest software updates. Have VMWare installed for XP, but even there the fn button appears as it would not exist.
    Also what's strange is that in OSX preferences in the Mouse and Keyboard section, there is no tab for my trackpad, even though it works fine. As there is no tab I can't e.g. set the feature for right clicking with the two fingers on the trackpad...
    Is this a hardware issue or some strange software issue?
    Thanks!

    Should the multitouch etc. generally work with 10.4.11 or do I need 10.5.x for the Trackpad tab to show up in the preferences - Mouse & Keyboard section?
    Thanks!

  • Auto brightness does not work anymore, need help!

    Auto brightness quit working... I see a several posts but no replies? Anyway to fix this? Is this an iso6 issue?

    If you have tried the troubleshooting steps for the iPhone, (power off/on, reset, restore) and none of them work, then I would say it is probably a hardware issue. The sleep button can fail after a period of time and you state you are using a 3G, so it is possible it was failing before you did the upgrade and that it has finally given up. It may be you need to either look for a repair facility to repair it or replace the phone. Up to you.

Maybe you are looking for

  • Is there a way to create a Quote or Sales Order from a a Service Call?

    Hi Forum, Is there a way to automatically create a Quote or Sales Order from a a Service Call? Regards, Manuel Roman

  • How to use a structure in CAF entity service

    Hi All I want to use a structure as datatype of a complex attribute in a CAF entity service. I tried to use a dictionary structure created in the dictionary part of the CAF project and added it to the public part of this DC.But I can't find it in the

  • When i open my Safari, it closes after 5 seconds.

    I have installed a toolbar, which i think is the problem, but it closes before i'm able to remove it.. When it closes it says something like "Safari suddenly closed while using the ct_plugins-pluginmodule" but to me its in norwegian so its probably n

  • Where can I find a wifi site utlity ?

    I am looking for a WiFI site utily to check coverage and siganl strenghts around our college campus. we would like to have this for our Iphones as well as our Ipads. I can't beleive that I can't find anything in the appstore. Does anyone know of an e

  • Service PR generated through maintenance order

    Hi Friends, I am creating a maintenance order in which i am using external services(Control key PM03). The PR is getting generated, but delivery date in the PR is not editable or modifiable its greyed out. How to make the field editable. please advis