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[PROBLEM] BT won't turn on

As described in title bluetooth won't turn on. Stock rooted JB 4.1.1 It says BT turning on, but it goes to off by itself
I have flashed the stock rooted ATT zip through SafeStrap in a different slot and BT works alright
Any suggestions?

Wifi working? Usually they go out the same time.

WiFi working fine. Just BT. It's a major annoyance cause I relay on my BT headset too much to get work done.

I have a stock HD that is having similar problems. The BT will turn on but randomly disconnects and turns off/on randomly. This is my second HD (cracked the first one) and the first one worked great. when I connect to my car I usually can't even complete a 1-2 minute call without BT turning off.

Bluetooth no longer stays permanently visible since JB?

Hello,
I have GT-N7000 UK O2
Android version 4.1.2
Ever since the JB update, my bluetooth requires me to restart it almost daily for it to pair with my car.
Prior to the update I'd set my visibility to 'never timeout' and it connected fine every time. With no intervention from me.
Now I have to swipe down the alert bar click on the bluetooth toggle turn it on and off, then select cancel once the bluetooth pop up appears.
The bluetooth works fine after that but it is annoying to have to remember to do it everyday.
Is there anyway to fix this or is a rollback to ICS the only thing I can do?
Your help would be greatly appreciated.
Thanks.

on JB if you turn the bluetooth on; it will be visible by only paired devices till you don't turn bluetooth off. So I don't think the problem is with the JB. unpair the car's device and pair it again and let the bluetooth be on.

Bluetooth won't reconnect automatically

I am rooted but still using the stock ROM. I have two Bluetooth-enabled Pioneer head units and a Bluetooth adapter for my home stereo system with this issue, so I know it's not the other Bluetooth device that's the problem.
When I pair the other Bluetooth device, everything works fine until the Bluetooth device disconnects. I either leave the area with my One, or turn the car off. When I come back home or turn the car on, the One will not reconnect unless I manually turn Bluetooth off and turn it back on again. I don't have to redo the pairing, just cycle Bluetooth off and on. This gets really, really annoying with the car stereos because I have to do it every time I make a stop.
The weird thing is, I had the problem before and it went away when the KitKat update was released. Unfortunately it only worked for a few weeks because I sent my One in for the pink camera issue. I did a hard reset before sending it off and rooted it got back, and now the Bluetooth problem has returned even though it's still on 4.4.2.
Anyone know how to make this go away?

No one is having a similar problem or knows how to fix this?

WiFi and Bluetooth Not Working Simultaneously

I recently purchased a bluetooth headset (Audionic B-666), but I am unable to use it to its fullest.
Whenever I connect headset while my wifi is on, internet connection stops working. Chrome shows not connected to internet.
If I connect headset first and then connect wifi, headset disconnects.
Headset works fine with my falcon and laptop.
I am running fully stock 5.1.1. Updated to build 10.7.A.0.222.
I know it is a known bug. Is there any permanent solution to it? I have read on different forums that factory reset will fix it temporarily. Is there any way to fix it without returning the device?
Or my only chance is to flash a custom ROM?

Anyone?

[HELP] Bluetooth issue

Dear all,
The phone work flawlessly, except for a big issue I found on bluetooth.
Once I paired it with my car bluetooth headset, when I leave the car and I get in back later, the phone didn't connect automatically; I've to connect it manually from bluetooth settings section.
Does anyone have had the same issue ?
Is there a fix for it ?
The phone is freshly installed with MIUI8.2.5 Global stable release.
Thanks anybody for supporting..

[EDIT]
After updating to stable 9.2.4 the problem is fixed.