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[Q] Bluetooth won't enable after OTA 4.2 update

20th November 2012, 10:57 PM |#1  
retro83's Avatar
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Just done 4.2 update after I was offered it.
However my Bluetooth now will not enable. The notification bar Bluetooth icon highlights but goes back to grey, the on/off slider in settings immediately goes back to off and the power widget BT icon does nothing.

Any ideas? Searched the board but all i could find were people with stuttering issues, not complete failure to activate bluetooth.

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20th November 2012, 11:00 PM |#2  
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Might be a stupid question, but have you tried rebooting the phone?

My phone ocassionally locks itself in "shutting off bluetooth" mode, but a reboot has always fixed it.
20th November 2012, 11:01 PM |#3  
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How embarrassing. Looks like a fair amount of people have the same issue:
https://code.google.com/p/android/is...ummary%20Stars
http://forum.xda-developers.com/show....php?t=1988998


Edit: yes, forgot to say, have rebooted and powered off/removed battery - still no change.
Last edited by retro83; 20th November 2012 at 11:04 PM.
23rd November 2012, 11:57 AM |#4  
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Some solution?

Sent from my Galaxy Nexus using xda app-developers app
23rd November 2012, 12:03 PM |#5  
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From what I've read the solution is to flash the factory image instead, or possibly just factory reset the phone.

But be aware that even with a cleanly flashed phone, BT has major issues in 4.2. Stuttering audio, disconnects, etc. Not everyone seems to be affected by this for whatever reason, but the new BT stack is definitely no hit.
23rd November 2012, 12:42 PM |#6  
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Yeah, having the same exact issues. I'll wait for 4.2.1 before I flash any images.
28th November 2012, 10:49 PM |#7  
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Don't bother, still broken in 4.2.1

Bug number again: 39688. Please star it if you have the issue.
24th February 2013, 05:16 AM |#8  
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i know this thread hasnt been updated in a while but for anyone finding this thread through various searches, the fix to try if you are rooted is linked below. It appeared to be a simple permissions issue

http://forum.xda-developers.com/show....php?t=2065962
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