Update bricked my Bluetooth :(

Discussion in 'OS X El Capitan (10.11)' started by colinwil, Mar 21, 2016.

  1. colinwil macrumors regular

    Joined:
    Nov 15, 2010
    Location:
    Reading, UK
    #1
    I just updated my two week old 27" iMac 5k to the new El Capitan that came out today.

    Everything appeared to go smoothly, but since it finished, Bluetooth doesn't work. The Bluetooth symbol in the status bar has a squiggly line through it, and obviously my mouse etc. doesn't connect.

    I've done the usual stuff:

    - I unplugged everything except the keyboard and rebooted.
    - I renamed com.apple.bluetooth.plist so that it would create a fresh new one.
    - I did an SMC reset

    But still nothing. If I go to System Preferences there's not even a Bluetooth section here anymore. And if I run the Diagnostics by rebooting with the 'D' pressed it says 'There may be an issue with the Bluetooth hardware. Reference code NDL001'.

    Of course they may well be a problem with the Bluetooth hardware - but it's a pretty huge coincidence that this happened since upgrading El Capitan.

    Anyone else seeing anything like this?

    Or anyone got any suggestions of things I might try to shake it back to life
    --- Post Merged, Mar 21, 2016 ---
    Latest update - in desperation I uninstalled iStat Menus, and shortly after that, Bluetooth un-squiggled in the status bar, reappeared in System Preferences, and my mouse connected. Phew

    Hopefully it'll stay fixed...
     
  2. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #2
    Try a SMC and PRAM reset.

    May be the hardware was faulty for a long time (according to your Apple Hardware test result), but just partly failure and keep working in normal situation. El Capitan is just the trigger.

    Anyway, a $5 BT USB dongle can easily fix it (if the BT hardware is really broken) .
     
  3. Kasperk macrumors newbie

    Kasperk

    Joined:
    Oct 15, 2015
    Location:
    Norway
    #3
    I am having the same issue with my iMac 5k (late-2015). Is the "iStat Menus" that you are talking about a third-party application?
     
  4. chrfr macrumors 603

    Joined:
    Jul 11, 2009
    #4
    Apple has a tech note on this. Shut down the computer, disconnect all USB devices and then turn the computer back on after 2 minutes, then reconnect USB. The note also states that resetting PRAM/NVRAM won't resolve this.
    https://support.apple.com/HT203646
     
  5. colinwil thread starter macrumors regular

    Joined:
    Nov 15, 2010
    Location:
    Reading, UK
    #5
    Yes it's a very neat thing that does temperature monitoring etc. I don't have any real reason to suspect it, and it may just be coincidence that Bluetooth started working on my iMac shortly after I uninstalled it. The tech note mentioned in this thread sounds more likely to me. But we'll see...
     
  6. magnoman macrumors newbie

    magnoman

    Joined:
    Mar 22, 2016
    Location:
    uk
    #6
    i had same problem with mine had to use a logitech keyboard/mouse to restart then all is ok.
    But all seems random and it has come back a few times for me.
    i have not uninstalled istat either
     
  7. colinwil thread starter macrumors regular

    Joined:
    Nov 15, 2010
    Location:
    Reading, UK
    #7
    I had it again just now (and I hadn't reinstalled iStat menus - so it looks like a red herring) after a reboot. I did another reboot and everything started working again.
     
  8. Kasperk macrumors newbie

    Kasperk

    Joined:
    Oct 15, 2015
    Location:
    Norway
    #8
    I haven't managed to fix mine at all after installing the latest update, tried all the fixes. Just been using it through the lightning cable, will give it another try later.

    I have a apple thunderbolt screen connected too, which I did not remove when trying earlier. It might be the reason why it did not work.
     
  9. Matthias46 macrumors newbie

    Matthias46

    Joined:
    Oct 11, 2014
    #9
    Just updated my two week old 27" iMac 5k and same thing...Bluetooth is gone.

    Nice work Apple!
     
  10. Kasperk, Mar 23, 2016
    Last edited: Mar 23, 2016

    Kasperk macrumors newbie

    Kasperk

    Joined:
    Oct 15, 2015
    Location:
    Norway
    #10
    Im in the same boat, tried disconnecting everything now. Still same problem.

    Update:
    What fixed it for me
    Resetting the NVRAM
    1. Shut down your Mac.
    2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
    3. Turn on your Mac.
    4. Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
    5. Hold these keys until the computer restarts and you hear the startup sound for a second time.
    6. Release the keys.
     
  11. magnoman macrumors newbie

    magnoman

    Joined:
    Mar 22, 2016
    Location:
    uk
    #11
    Thanks Kasperk
    that also fixed my problems hopefully it stays like that missus was getting annoyed turning it off all the time :(
     
  12. laurent_g83 macrumors newbie

    Joined:
    Mar 24, 2016
    Location:
    Geneva, Switzerland
    #12
    Had the same problem, also a late 2015 iMac 27' 5k.
    The fix for me was to reinstall OSX.

    1. Make sure you have a backup
    2. Restart the computer holding Command (⌘) + R
    3. Chose "Reinstall OSX" and follow the steps.

    It takes a while to run through the process and you might have to re-pair your bluetooth devices when it's done. I had to delete the bluetooth devices from the list and re-pair to get them to work. All your settings and files should be there and your bluetooth should be back to normal.
     
  13. Markee68 macrumors newbie

    Joined:
    Mar 24, 2016
    #13
    Same here, 2 week old 27" iMac 5k

    Been on the phone to Apple support

    Reset SMC - didn't work
    Reset NVRAM - didn't work
    Reinstall OSX - didn't work
     
  14. goodmove macrumors member

    Joined:
    Mar 6, 2008
    Location:
    Sunrise, FL USA
    #14
    3 day old iMac 5K 27" had same issue. Did new install of 10.11.4 and t's better now. My Magic Trackpad 2 loses the connection only intermittently -every couple of hours for a few seconds. Also, had my first Mail crash since OS 9...
     
  15. Matthias46 macrumors newbie

    Matthias46

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    Oct 11, 2014
  16. Markee68 macrumors newbie

    Joined:
    Mar 24, 2016
    #16
    Well, turns out after spending nearly an hour on the phone to Apple support and taking into the Apple Store, my two week old iMac 5k has a faulty Airport (includes Bluetooth) card. Currently being replaced under warranty.

    Strange that it worked without any issues but failed after a software update.
     
  17. laurent_g83 macrumors newbie

    Joined:
    Mar 24, 2016
    Location:
    Geneva, Switzerland
    #17
    Bad news here! The OSX clean install only fixed the problem temporarily. This morning when I started my computer my bluetooth was dead again and the squiggly line was back. It seems to be very intermittent as a restart sometimes fixes it. Very frustrating! Apple support seems to be unaware of any problem, I will continue to investigate solutions and report any findings.
     
  18. Markee68 macrumors newbie

    Joined:
    Mar 24, 2016
    #18
    Maybe it's popped your Bluetooth (Airport) card like it did mine?
     
  19. lankox macrumors regular

    Joined:
    Jul 5, 2007
    #19
    Having the same problem. Resetting PRAM did not help.
     
  20. Markee68 macrumors newbie

    Joined:
    Mar 24, 2016
    #20
    If you've:

    Reset your SMC
    Reset NVRAM
    Reinstalled OSX

    It's probably a hardware failure like it was on mine.

    Sorry to be the bearer of bad news...
     
  21. laurent_g83 macrumors newbie

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    Mar 24, 2016
    Location:
    Geneva, Switzerland
    #21
    Well, after some investigating and playing around, I reinstalled OS X again and reset NVRAM and it seems to be back to normal and stable, several restarts and I still have good bluetooth connectivity. Glad it worked out but not very impressed with Apple on this one. No communication, support unaware of any issues... After the iOS 9.3 fiasco and this it seems their testing is getting somewhat sloppy.
     
  22. ABC5S macrumors 68040

    ABC5S

    Joined:
    Sep 10, 2013
    Location:
    Florida
    #22
    My update did not case any issues with bluetooth. If it was wide spread, it would have been reported as such.
     
  23. laurent_g83 macrumors newbie

    Joined:
    Mar 24, 2016
    Location:
    Geneva, Switzerland
    #23
    Glad your computer is working fine and you are not experiencing this issue, but based on your signature you are using a MacBook Pro, not a late 2015 27" iMac 5k.
    All users having problems are on the 27" iMac.....
     
  24. Ndalby macrumors newbie

    Ndalby

    Joined:
    Sep 9, 2014
    #24
    Got the same issue as you guys with my 27" 5K Retina which was delivered last week, did the PRAM, NVRAM and Bluetooth plist delete which made it stable after a few restarts but once shutdown, it starts again. Also my 256GB SSD loading bar flickers on boot, gets to around a third then screen goes black, logo and bar flicker a few times then it loads to logon screen. Phoned Apple support and did 90min of troubleshooting with no improvement apart from Bluetooth, advised to return for replacement.

    New iMac delivered today, all working brilliantly. Installed 10.11.4 with other App updates and both Bluetooth and SSD issue's have re-appeared. Go figure.

    Anyone else noticed the SSD booting issue with theirs? Was previously running OS X on an external Thunderbolt SSD before upgrading my Mac and bar was always present during loading.
     
  25. tc94 macrumors newbie

    Joined:
    Apr 11, 2016
    Location:
    Central TX
    #25
    So I am running 10.11.14 on my MBP that is less than a year old. Using a Logitech K811 Keyboard and Logitech T651 Touchpad that both connect via bluetooth. They've been working fine until a few weeks ago. Now experiencing much of what you all are posting, including total disconnect. Tried restarting all devices and ensured all were updated. Resetting the PRAM has finally worked, but am still getting random disconnects and slow responses from both devices. At least after the PRAM reset, I am able to reconnect. Still a pain, but at least not totally bricked. Hoping an update will fix this.
     

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