Develop Bugs

Galaxy s3 not finding car Bluetooth

I just got my gs3 from Rogers, and the phone works great but for some reason it does not find/detect my car's inbuilt Bluetooth system. My gs2 worked with no issues but my gs3 does not find the device when scanning . The Bluetooth worked when connecting to friends iPhone but not with my car. Anyone know what might be the cause?
My car is a 2011 BMW X6.
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I have this problem too, ford focus with sync. It will detect it when I first pair the devices, but then it won't connect again after the connection has been disconnected. I have to forget the bluetooth connection and re-pair the phone with my car bluetooth to get it to work. Mine too is the Rogers version of the S3.
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My phone doesn't even find the car when scanning. Can't even try to pair it if I wanted to
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bump
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Isnt the car radio suppose to scan for the phone not the other way around or atleast thats how ive done it with no issues
Sent from my SPH-L710 using xda premium

no. for my car, the phone is supposed to scan then pair with the device by using the cars password
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I have the same problem supposed to search for cars bluetooth but gs3 wont find it at all I really hope theres a fix for this bc i love this phone but this is a deal breaker

found the solution! phones blue tooth needs to be turned on before starting the car. finds and pairs no problem. if I start the car first and then start the phone it doesnt work.
start the phones Bluetooth before starting the car. let me know if it works for you!!
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dmichalski said:
found the solution! phones blue tooth needs to be turned on before starting the car. finds and pairs no problem. if I start the car first and then start the phone it doesnt work.
start the phones Bluetooth before starting the car. let me know if it works for you!!
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I can pair the phone once this way, but afterwards it will never connect again. Have to forget the connection and start again.
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Try turning off your bluetooth and then turning it back on before you start the car.

Mine had the same issue (JVC stereo, Telus SGS3) until I hit the "initialize" option in the stereo. After re-pairing the phone it's worked great for 4 days.
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I noticed that my Bluetooth issues went away with the latest AT&T OTA update from last week. I understand yours was on Rogers, but assuming you'll eventually (if you don't already) have access to the same update.

Bluettoth Issue on all stock TW based ROMs
What I have noticed is that I have had this issue on all Sammy based ROMS. Had no issues on the AOKP ROMS. On the Sammy ICS ROms the phone pairs but keeps switching between call audio and media audio in bluetooth. It sticks at call audio once you manually chose call audio and disconnect media audio in Bluetooth once it has paired.

I agree with you. I issues have gone after LG1 OTA update. Thanks
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[Bluetooth][Question] Bluetooth not working

Hey guys my Bluetooth has never worked even before rooting or changing the roms. Any ideas as to what I can do to find what the issue may be. Do I need to do a dump or anything that may help. Thank you
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roketteere said:
Hey guys my Bluetooth has never worked even before rooting or changing the roms. Any ideas as to what I can do to find what the issue may be. Do I need to do a dump or anything that may help. Thank you
Sent from my SGH-T989 using xda premium
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What exactly is the problem besides "It's not working"
When you enable bluetooth in the ROM is it enabling?
Is it seeing the bluetooth device in the scan?
Is the bluetooth device itself not pairing?
What ROM/Kernel..GB,ICS,etc?

I've tried a few roms. The Bluetooth never turns on. I turn it on and nothing ever happens. I'm running dark side kernel right now.
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Mines the same way, sometimes rebooting the phone works if I do it while the bluetooth is trying to turn on.

Bluetooth connectivity

Quick question ...my Bluetooth does not reconnect...in others words....if I put on Bluetooth...the Bluetooth icon grows on...but it doesn't go blue......it doesn't turn on and go blue....it just pops up and stays gray....is there a fix? I went into the market and downloaded Bluetooth reconnect fix....but it works off and on....any permanent fix.....thanks a lot!!! I am on Eclipse JB ROM latest update 11
..should I try another gapps?
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What are you trying to connect? If it's a cheap Bluetooth headset, then you will always have that problem.
The Bluetooth system is coded into the core OS, so the only way to truly test it is to try another JB ROM. EuroSkank's is quite nice and stable.
Swyped from my Galaxy Nexus using TapaTalk 2

Stock S3 BT issues only with PIONEER headunit...

As the title says, I am having issues getting connection. I have unpaired it, started completely over and still the only way I can Get it to play is physically going into Bluetooth and then click media to check mark. Sometimes have to do this 3-4 times before it clicks on.
I just started having these issues with it. Not sure if it is my deck or phone. It used to auto connect and play flawlessly for months. It still auto connects fine with phone calls, just the media portion is messing up.
Anyone else have any issues like this?
Deck is a Pioneer 9400HDBT.
Any help would be much appreciated.
Sent from my Nexus 7 using Tapatalk 2

I guess I am the only one, lol!
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Have you changed roms recently?
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JesseMT4G said:
As the title says, I am having issues getting connection. I have unpaired it, started completely over and still the only way I can Get it to play is physically going into Bluetooth and then click media to check mark. Sometimes have to do this 3-4 times before it clicks on.
I just started having these issues with it. Not sure if it is my deck or phone. It used to auto connect and play flawlessly for months. It still auto connects fine with phone calls, just the media portion is messing up.
Anyone else have any issues like this?
Deck is a Pioneer 9400HDBT.
Any help would be much appreciated.
Sent from my Nexus 7 using Tapatalk 2
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I have the same issue at times on my pioneer head unit...some ROMs work better then others ...running xperiaZ from jovy and I get connected pretty consitently . I have a feeling its the head unit more then the ROMs though...there's times where my phone says I'm paired but the head unit still flashing the Bluetooth icon. Think I have the 3400bh but I'm not in my car ATM to verify
Edit: 3400 ..phone connects fast for the most part but music tends to be iffy. Dont think its rom related at all.
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I used to work at sprint and the s3 has blue tooth known issues. I assume it would be the same being the blue tooth hardware is essentially the same. I always told people to root their phones and load a custom stable rom and it fixes the problem of those few that did. Sorry I couldn't help much
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Supposely when we get an update its suppose to fix and better Bluetooth connection.
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Bluetooth help for 4.3 update

I'm starting this thread to start a conversation that hopefully leads to a solution. Since updating to 4.3, Bluetooth has been wonky. It worked perfectly at first, but now it won't transmit any data. From searching, I can tell I'm not the only one with the issues, but no one wants to help the people who have pleaded for help.
Now, I will clarify that I am using two devices that use the apt-x profile. I have a Plantronics bt headset that does use this and I have a little more luck connecting with that.
The info I've found in searching is erratic at best, but no clear solution is stated. So, if you know a fix, let me/everyone know here. You can also share about roms where Bluetooth connections have been working for AT LEAST a week since everyone's bt works at first.
At the very least, subscribe to the topic if you can so that you can come back and share any progress or tips you might stumble on. Thanks.
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I've been using the S3Rx 3.0 rom for almost a week without any Bluetooth issues. You can find it here: http://forum.xda-developers.com/showthread.php?t=2252932
I've noticed some volume variances when notifications come in, but nothing that would qualify as a malfunction.
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natefish said:
I've been using the S3Rx 3.0 rom for almost a week without any Bluetooth issues. You can find it here: http://forum.xda-developers.com/showthread.php?t=2252932
I've noticed some volume variances when notifications come in, but nothing that would qualify as a malfunction.
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Well, that rom had the same issues as the rest as of a few days ago.
Now trying the latest Intergalactic (4.1). May give Quantum a shot next.
I'll keep uploading this thread since it is getting plenty of views from folks who may be having the same issues or on the same search.
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I am now certain there is either an app causing my issues (highly unlikely) or there is simply an issue with bluetooth on the 4.3 update (most likely). It has been a frustrating journey. I'm not sure what else to do at this point.
I am currently using my third Galaxy S3 (long story) and all have had the same issues with the 4.3 update. AT&T Next is looking more attractive these days.
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Sounds like a bug in the Bluetooth stack. Did you do all the formats available? Sometimes past ROMs will mess with the WiFi and bluetooth stacks. I suggest a full format, including system and /data/data
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I'm having a similar problems when i try to turn on Bluetooth it goes light green for a few seconds the turns back off. I need to get my Bluetooth running so if anybody has any suggestions as to how to fix this let me know. I,m running SGH-I747M mrRobinson stock rooted rom root66_RWC_I747MVLUEMK5_2. Thanks in advance for any help.