Volume keys not working

When I change from British English to Polish language (System Preferences/Language & Region) on my MacBook running OS X Yosemite 10.10.3 and perform the obligatory reboot, the volume keys on the keyboard no longer work. I have tried a PRAM reset (Option, Command (⌘), P, and R) to no avail. Internal speakers are selected in System Preferences/Sound but the volume controls are greyed out.
Thanks for any suggestions or remedies.

Sounds like your OS maybe at fault. Try repairing your permissions using Disk Utility first.
If that doesn't work you should try to reinstall your OS by way of your Tiger DVD or CD using the Archive option, preserving the network settings.
After your restart, go to the Apple Menu and choose Software Update to update your OS and other software then restart. After you do this everything should be fine.
Now if you have a Mac still under warranty, call Apple Tech Support at 1 800 275-2273 if the above doesn't help.

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Hi guys!
My f10-11-12 keys are not working for volume purposes. I went into prefereces, keyboard, uncheck/check the "use F1, F2... blahblah" and the problem is still there.
I am using a macbookpro 13" 10.6.6.
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This post did not help either https://discussions.apple.com/thread/2298682?start=0&tstart=0
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Thanks for asnwering... Yes, of course I have tried because is how it works
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It's only just done it today my phone switched of because ran out of battery and now there no sounds :S my volume buttons are being recognised im pressing them but you can usually press for more 'squares' of volume and there's no squares no noise through games anymore no lock sound no keyboard sound no youtube sound but my speaker works as when i press for siri i can here the talking when i have phone calls or alarms i have sound please help?
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found this and it worked after 1st step so hope this helps other people too
srode1000
Re: iPhone 4S sound problems
Dec 29, 2011 2:05 PM (in response to unowen57)
Hi Guys,
I have post eariler on another forum and I have the same problem, I have tried all the things listed here and nothing was perminant in fixing this painful iphone hating problem.... and failed. You probably have the problem when you use youtube or your music external speaker that there is no volume bar and no sound.   I have had the same problem But I need to happily say that I now have the fix!!!! This worked for me and I fixed it by myself so you don't need to go to apple or service centre or anything.
Ok I like so many of you here truly believed this was as IO5 issue as it only dropped the sound on the speakers once that IO5 update came along. I tried a bunch of reset, reboots, home clicks, lock and unlocks, to fix this and all failed. some worked for an hour but then failed. hours of my life that I will never get back.   but since I have learnt this is not a IO5 problem but a hardware issue! ... and in paticualar is has to do with your bottom connection. Your phone is thinking it is docked all the time.
To fix the no sound problem what you need is...
1. a torch
2. a tooth brush
3. methalated spirits
4. a butter knife
Step 1.
get your torch and shine it down the bottom connection plate to see what kind of dust, sand, hair or anything you have stuck in there.   all that need to be removed! everything! it might look clean but still thats ok go to step 2.
step 2.
Turn on your music app and put the speakers on! If your phone is like mine it should not work. you most probably don't even have the volume display to turn it on but its ok, just do it! and it should still play with no sound.   its important you try and run the speakers as this will show you that it is a hardware problem.
step 3.
Dip your tooth brush into some methated sprits.   then at your sink tap the exess metho out of your brush as you just want the brushes to be slightly damp, not soaking wet and then scrub the bottom connetiors on your iphone. work the brush back and forward in a way that scoops the dirt out of the phone, not just pushing it side to side.
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Use the back side of a butter knife (not the sharp side) to gently slide over the connectors on the iphone. Do this gently as you are only pushing down on the tiny metal contect bars and you should notice the volume display come on again. slide it back and forward. Now the area of interest is about 2/3 along the connection plate to the right.   This is the area that has the infomation sent when your iphone thinks its docked.
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Cheers

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Try:
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Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup. See:
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- Make an appointment at the Genius Bar of an Apple store.
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Hello Amandodsouza,
It sounds like you are experiencing some unexpected behaviour with the on screen keyboard after updating to iOS 7.1.1. I would start by closing all the running apps on the phone:
iOS: Force an app to close
http://support.apple.com/kb/ht5137
Double-click the Home button.
Swipe left or right until you have located the app you wish to close.
Swipe the app up to close it.
When you have done that and restart the phone and test the issue again:
iOS: Turning off and on (restarting) and resetting
http://support.apple.com/kb/ht1430
Thank you for using Apple Support Communities.
All the best,
Sterling

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Hi orangepekoe,
If the keyboard on your MacBook Air is responding erratically, try the following troubleshooting steps:
OS X Yosemite: Reset your computer’s PRAM
http://support.apple.com/kb/PH18761
OS X Yosemite: Reset your computer’s PRAM
If your Mac doesn’t seem to be remembering your speaker volume, display resolution, or the disk it should be using during startup, you may need to reset your computer’s PRAM.
Resetting PRAM may change some system settings and preferences. Use System Preferences to restore your settings.
Important: To print these instructions, click the Share button in the Help window, then choose Print.
Choose Apple menu > Shut Down.
Locate the following keys on the keyboard: Option, Command (⌘), P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on your Mac.
Immediately press and hold the Option-Command-P-R keys. You must press this key combination before the gray screen appears.
Continue holding the keys down until your Mac restarts, and you hear the startup sound for the second time.
Release the keys.
After resetting your computer’s PRAM, you may need to update your speaker volume, display resolution, and startup disk preferences. For more information about PRAM, see the Apple Support article About NVRAM and PRAM.
Last Modified: Jan 6, 2015
Intel-based Macs: Resetting the System Management Controller (SMC) - Apple Support
http://support.apple.com/en-us/HT201295
Resetting the SMC on portables with a battery you should not remove on your own
Note: Portable computers that have a battery you should not remove on your own include MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009).
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
I hope this information helps ....
- Judy

Volume keys not working

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