Develop Bugs

[Q] Bluetooth Upgared / Fix

can anyone tell me if I can update the Bluetooth in my HTC Desire or have more profiles. the phone is branded o2 but can be rooted. I dont want to change anything else in the ROM just make the bluetooth connect automaticaly & reliably to the car.
There are newer software builds available but have no mention of updating bluetooth.
Ther are no OTA updates available.
Software Number is 2.14.207.1
Andriod 2.2
Thanks for any advice in advance.
Trampsdad

Can't you just pair the 2 devices together? I personally don't use Bluetooth so no idea on that aspect. Also, the software is so out of date because o2 cba to release and update. There are major updates since yours. It might be worth considering to root so then you can flash a newer ROM, or infact, you don't need to root and just use an RUU. With the newest software. No need to root it then and less chance of it mess up.
Hope this helps

I still have some strangeness with Bluetooth. From what I read there are some updates in Honeycomb and maybe gingerbread. But I don't have a feeling what you are looking for is in FroYo
Sent from my HTC Desire using XDA App

Well I have a Kenwood Headunit with Bluetooth and the connection to that using stock Froyo and LeeDroid showed some interesting results. Gaps in the phonebook for instance. However, putting a 2.3 ROM (Ginger Villain) sorted that out, its fine now.
Bluetooth depends on the other device too.

What exactly is the problem you are having?
What Car do you have?
What Bluetooth system is installed (is it standard)?
I have used my desire in a number of cars (Vauxhall, Ford, BMW) without any isses with pairing, using the Phonebook,etc. is a different matter.

Personally, I have just received a new BMW 528i, and it doesn't get on well with my Desire at all.
It pairs OK and can use both the phone and music, but when I leave and return to the car, it just refuses to auto-connect again, and I have to go through the pairing procedure again.
Oh, except one - the time I went back to the garage to 'complain' about it and ask for advice, when it worked perfectly. Until I got home again!
Have experimented with my old Nokia N85, and that works fine, too. So it's either the Desire or an incompatibility between it and the car.
Oh, my Desire is running MCR r9 (FroYo) at the moment. Are there known issues with this? Info on any Bluetooth updates I could apply would be gratefully received!

i have to enter my pairing code every time i connect my bt headset - i took this to be a quirk for the moment - hoping its fixed in 2.2.2/2.3.x etc.

Lothaen said:
i have to enter my pairing code every time i connect my bt headset - i took this to be a quirk for the moment - hoping its fixed in 2.2.2/2.3.x etc.
Click to expand...
Click to collapse
Im having this same problem also with a Pioneer Head Unit in my car.
Bluetooth has always been troublesome as it doesn't auto connect. It will connect if I either manually click on "Pioneer Head Unit" or turn Bluetooth off and on (which I automate with tasker).
The pin thing is new and happens with all roms I have tried except LeeDroid, (which I prefer not to use as I don't like sense much). Leedroid still has the auto connect problem.

daveaus said:
Bluetooth has always been troublesome as it doesn't auto connect. It will connect if I either manually click on "Pioneer Head Unit" or turn Bluetooth off and on (which I automate with tasker).
Click to expand...
Click to collapse
Some good hints there - thanks!
I can connect far more reliably if I initiate the connection from the phone than from the car.
Likewise, if BT is switched off on the phone and then turned on after the car is on, then it sometimes works, too. Certainly don't need to re-pair anywhere near as often.
Can I ask how you use Tasker to automate the BT switching? I've not used that (I use Setting Profiles instead which I understand does roughly the same thing), so am curious what kind of rule you have that's useful for this.
Cheers.

TheMegaMan_ said:
Can I ask how you use Tasker to automate the BT switching? I've not used that (I use Setting Profiles instead which I understand does roughly the same thing), so am curious what kind of rule you have that's useful for this.
Click to expand...
Click to collapse
I use the following rules:
On wifi connection turn off bluetooth
On wifi disconnection wait 30 seconds and turn bluetooth on.
If not wifi connected & not bluetooth connected turn bluetooth off and on every 5 minutes.
If not wifi connected & not bluetooth connected and incoming call turn bluetooth off and on.
If not wifi connected & not bluetooth connected when display switched on turn bluetooth off and on.
The battery drain hasn't been a problem, if I go away or won't be using my car for a while I disable tasker. Of course this doesn't help when it keeps asking for the pin.

daveaus said:
I use the following rules:
Click to expand...
Click to collapse
Ah, cunning! Of course...toggle it when it's not already connected. Prifile Settings doesn't seem to let me toggle things like BT directly, although I could probably do so by setting some appropriate profiles.
I'll have to experiment...or just buy Tasker, instead!
daveaus said:
Of course this doesn't help when it keeps asking for the pin.
Click to expand...
Click to collapse
True, but so far in my case, I've only had that when I've tried to initiate connection from the car. Hopefully your trick will mean I don't need to do that so often.

Anyone found a gingerbread rom (or any rom!) with improved Bluetooth?

I have found the bluetooth to be terrible on the desire. I have got about 3 devices that my phone just refuses to pair with.
Currently I am trying to get it to connect with an Elm 327 Obd scanner. No luck, it asks for a pin, then I enter the pin, but it immediately rejects it.
I have tried oxygen rom, leedroid, stock froyo, everything...
I also have a parrot hands free kit that does the same thing, asks for pin, then does nothing...
Something makes me think it might be the radio or something. Except that my phone DOES connect with my scala motorbike helmet... So frustrating
Sent from my HTC Desire using XDA App

help with bluetooth and car kit. please!!!

hey guys after all these years I'm finally back to Android.
I have the HTC One m8 with Verizon and so far I really like it. the only problem is I can't get the Bluetooth to work with my car. Its a 11 Mazda 3, what happens is when it ask for the password for the pairing I enter it (all zeros) after I push okay the car lose the connection and the phone says paired but my car dosent ask for a devise name. I hear there's a problem with this version of Android and Bluetooth into cars. is there like an app i can download or something I can do please someone help. I don't wanna go back to my iPhone

iNFiNiTY125 said:
hey guys after all these years I'm finally back to Android.
I have the HTC One m8 with Verizon and so far I really like it. the only problem is I can't get the Bluetooth to work with my car. Its a 11 Mazda 3, what happens is when it ask for the password for the pairing I enter it (all zeros) after I push okay the car lose the connection and the phone says paired but my car dosent ask for a devise name. I hear there's a problem with this version of Android and Bluetooth into cars. is there like an app i can download or something I can do please somt wanna go back to my iPhone
Click to expand...
Click to collapse
I don't have a Mazda, but have the Verizon M8 and have no issues pairing my phone for both calls and audio, regardless of whatever ROM I've tried. Your car is three years old, so I suspect the problem is there. I would take it into Mazda and see if there is a software update for their entertainment/bluetooth. Also, if you've paired up your phone to anything else previously (headphones, speaker, etc.) you might want to delete those pairings before trying to set it up again. If none of those things work, then you might be out of luck unless you want to upgrade your car stereo. There are many instances where certain devices/cars just don't work well together, but the M8 has the latest bluetooth release available. Good luck.

Thanks for the support and for helping find the Solution!
ebb said:
I don't have a Mazda, but have the Verizon M8 and have no issues pairing my phone for both calls and audio, regardless of whatever ROM I've tried. Your car is three years old, so I suspect the problem is there. I would take it into Mazda and see if there is a software update for their entertainment/bluetooth. Also, if you've paired up your phone to anything else previously (headphones, speaker, etc.) you might want to delete those pairings before trying to set it up again. If none of those things work, then you might be out of luck unless you want to upgrade your car stereo. There are many instances where certain devices/cars just don't work well together, but the M8 has the latest bluetooth release available. Good luck.
Click to expand...
Click to collapse
Think you for your fast response, so I called up my dealership and they said they don't have any updates for my stereo.
But I did find a solution YAY!
1. keep one of the failed pairs in your phone
2. download "Bluetooth Connect and Play"
3. Here are the settings you want:
Bluetooth Receiver is [ON]
when this bluetooth device connects...
[*] Mazda
4. Click the 3 dots in the corner and click "Tweaks"
5. Heres what you want:
When trigger player
(*) Start player on basic bluetooth connect only
Seconds to wait 0
everything else unchecked
6. Make sure all other connections are deleted from your car and then set the car to pair while the code 0000 is on the screen go to your bluetooth settings and delete "Mazda" then click "Mazda" when it comes up enter 0000 and then bluetooth connect and play will come up and music will start playing
7. music will stop and it will ask you to name the device.. cool
8. enjoy wireless music

[ISSUE] Android Nougat. Bluetooth issue after updating

SOLVED. Thanks to Fir3start3r.
Change pairing code to 0000
Hello all,
I updated my Android to Nougat over the air on previously fresh installed Android Marshmallow. Everything seems ok, but now I can't pair my phone with my car over bluetooth. A few weeks ago, I tested Android N DP5, and it was the same issue. At that time, I thought that the issue was related to beta version, but now it's official.
Everything worked like charm before on Marshmallow. The error message that I get is "Can't communicate with Hands Free System". The car says "Pairing failed".
Just to clarify, the car is Mitsubishi Spacestar 2014, and before pairing, I wiped the phone from car's Hands Free System, so it's clean/new pairing.
Does anyone experiencing this? Is there any fix?
Thank you.

Antique_Angel said:
Hello all,
I updated my Android to Nougat over the air on previously fresh installed Android Marshmallow. Everything seems ok, but now I can't pair my phone with my car over bluetooth. A few weeks ago, I tested Android N DP5, and it was the same issue. At that time, I thought that the issue was related to beta version, but now it's official.
Everything worked like charm before on Marshmallow. The error message that I get is "Can't communicate with Hands Free System". The car says "Pairing failed".
Just to clarify, the car is Mitsubishi Spacestar 2014, and before pairing, I wiped the phone from car's Hands Free System, so it's clean/new pairing.
Does anyone experiencing this? Is there any fix?
Thank you.
Click to expand...
Click to collapse
I don't know about specifics in bluetooth devices such as your Mitsubishi. But I can tell you my bluetooth connects to my stereo fine in my 2012 Jeep Patriot. I haven't updated to the final release but I'm currently on preview 5. So I don't think it's an issue with bluetooth in Nougat.

I had some issues on the last preview. For me it would disconnect after being connected for maybe 5 min or so. That was with a JVC BT adapter (older aftermarket headunit) and in a Ford with sync (V1) Haven't tested on the new build though. Going back to 6.0.1 resolved all of those issues at the time. I flashed the ota last night and still need to see if it improved anything for me.

Antique_Angel said:
Hello all,
I updated my Android to Nougat over the air on previously fresh installed Android Marshmallow. Everything seems ok, but now I can't pair my phone with my car over bluetooth. A few weeks ago, I tested Android N DP5, and it was the same issue. At that time, I thought that the issue was related to beta version, but now it's official.
Everything worked like charm before on Marshmallow. The error message that I get is "Can't communicate with Hands Free System". The car says "Pairing failed".
Just to clarify, the car is Mitsubishi Spacestar 2014, and before pairing, I wiped the phone from car's Hands Free System, so it's clean/new pairing.
Does anyone experiencing this? Is there any fix?
Thank you.
Click to expand...
Click to collapse
Every time i flash my phone with a major update change or wipe it, i have to delete the current BT profile in the car, as I do not alter the name. That resolves it for me 7.0 syncs just fine on my car

Can anyone help me in getting the vendor image for official nougat build?
Thanks in advance!

I have same issue as OP with a 2nd gen Toyota Prius. Resetting the car's Bluetooth settings hasn't helped, as suggested by others in the thread.

I tried everything and I also wiped my phone. I believe that the issue is Nougat OS because it did sync before on Marshmallow.

Lavrentsii said:
I have same issue as OP with a 2nd gen Toyota Prius. Resetting the car's Bluetooth settings hasn't helped, as suggested by others in the thread.
Click to expand...
Click to collapse
OK so the car is at least 7 years old, so does the car have any profile settings, where it associates your phones BT MAC address with a name of some kind where you can see and choose them. I know some cars can do that, even some older ones. If so does it still show as I do not know if there is a difference between doing a BT reset and deleting profiles?
I can attest that 7.0 works with BT streaming, connecting, etc...

carm01 said:
OK so the car is at least 7 years old, so does the car have any profile settings, where it associates your phones BT MAC address with a name of some kind where you can see and choose them. I know some cars can do that, even some older ones. If so does it still show as I do not know if there is a difference between doing a BT reset and deleting profiles?
I can attest that 7.0 works with BT streaming, connecting, etc...
Click to expand...
Click to collapse
It allows you to delete registered phones and "Reset settings to default". I think those settings might just be Bluetooth name and PIN though, but that's what I tried

Same problem here (Mitsubishi Lancer (2016)) -> changed the bluetooth (pairing) code from the Mitsubishi media system to "0000" -> works perfect now

Lavrentsii said:
It allows you to delete registered phones and "Reset settings to default". I think those settings might just be Bluetooth name and PIN though, but that's what I tried
Click to expand...
Click to collapse
I wonder if something in the upgrade process fouled it up per chance.
What OS version did you come from and how did you arrive at 7.0?

carm01 said:
I wonder if something in the upgrade process fouled it up per chance.
What OS version did you come from and how did you arrive at 7.0?
Click to expand...
Click to collapse
6.0.1 Stock, unrooted etc, thru "Beta" enrollment to expedite OTA delivery. I unenrolled after the update installed.
I plan on resetting in the next week or so to switch to File-Based encryption. Hopefully that will fix it

Lavrentsii said:
6.0.1 Stock, unrooted etc, thru "Beta" enrollment to expedite OTA delivery. I unenrolled after the update installed.
I plan on resetting in the next week or so to switch to File-Based encryption. Hopefully that will fix it
Click to expand...
Click to collapse
I did it differently coming from rooted 6.0.1
This is what I did :
http://forum.xda-developers.com/showpost.php?p=68322783&postcount=4
Maybe that factory reset will help

I have exactly the same problem with my pajero 2014 bluetooth
With marshmallow rooted or unrooted works perfect
With n in dev. Preview or the official yesterday I got " pairing failed "
Any help will be appreciated

Fir3start3r said:
Same problem here (Mitsubishi Lancer (2016)) -> changed the bluetooth (pairing) code from the Mitsubishi media system to "0000" -> works perfect now
Click to expand...
Click to collapse
It worked! Thank you very much!

Fir3start3r said:
Same problem here (Mitsubishi Lancer (2016)) -> changed the bluetooth (pairing) code from the Mitsubishi media system to "0000" -> works perfect now
Click to expand...
Click to collapse
Wow it really works thanks alot dude you made my day

You're welcome!

Fir3start3r said:
Same problem here (Mitsubishi Lancer (2016)) -> changed the bluetooth (pairing) code from the Mitsubishi media system to "0000" -> works perfect now
Click to expand...
Click to collapse
Confirmed as well. 2015 Outlander Sport.
Thank you!

Anyone have any luck on a JVC stereo? It keeps saying wrong code. Idk how to reset it

Mine connects fine to my car stereo but with Play Music it starts playing through the speaker phone after a song completes. I have to pause and resume for it to start playing through the car stereo again. Really obnoxious. Other than that, I'm really enjoying Nougat (besides the terrible name).

Car Bluetooth issues (Mazda)

My Pixel XL is having a hard time connecting to my car's Bluetooth (Mazda 3). I had no problem pairing, but connecting seems to be hit or miss. Once it connects, things seem to work fine. Any advice?

My advice is get used to it. Not being mean saying that, its just that Android bluetooth has been hit or miss for a long long time now. Some will work well with some devices and some will not. And it will change every once in awhile after an update.
Toss a Bluetooth toggle on your home screen

Aqua1ung said:
My Pixel XL is having a hard time connecting to my car's Bluetooth (Mazda 3). I had no problem pairing, but connecting seems to be hit or miss. Once it connects, things seem to work fine. Any advice?
Click to expand...
Click to collapse
If you're not on the latest security update, I'd suggest that you install it. Older GM vehicles had an issue connecting to BlueTooth. It was resolved with the December 7.1.1 update.

cam30era said:
If you're not on the latest security update, I'd suggest that you install it. Older GM vehicles had an issue connecting to BlueTooth. It was resolved with the December 7.1.1 update.
Click to expand...
Click to collapse
Yes, I am currently on 7.1.1.

Is there an official Google PixelXL forum where I can voice my concerns so that Google/Pixel people come in contact with my grievances in a more direct manner?
Thank you!

Aqua1ung said:
Is there an official Google PixelXL forum
Click to expand...
Click to collapse
Here > productforums.google.com/forum/#!forum/phone-by-google

I think I've noticed a pattern that might be relevant for this issue: After rebooting, connection happens pretty much instantly. It gets gradually slower everytime i connect afterwards, until the A2DP profile stops connecting altogether, after the 4rd or 5th connection attempt. Rebooting the Pixel resets this cycle.
Interestingly, these connection issues happen only with my Mazda car. No other BT devices have problems connecting to the PixelXL, which makes me think that this might be a Mazda issue rather than a Pixel issue. But then again, I had no such problems when connecting my Mazda to my Galaxy S6. Not sure what to think.

http://www.androidpolice.com/2017/0...-random-bluetooth-disconnects-pixel-pixel-xl/

Bluetooth always reconnecting in car

The problem is to connect Bluetooth on a Moto Z Play Android 7.1.1 patchlevel 2/2018 (current in reteu, was same result with Android 6.0.1 12/2016) with a Volvo XC40 car.
The first pairing with Bluetooth succeeds for a second. Then, nearly immediately, both displays (car and mobile) show reconnecting for about 10 seconds. It has a connect for a fraction of a second, and then is reconnecting and so on.
Trying flight mode and then only Bluetooth enabled on the mobile did not help. IIRC it showed some message about "My Volvo Carnull not bonded" (the name of the car for Bluetooth is "My Volvo Car" and some message with typo, something like "conecnting not successful". After that I rebooted, result was the state before with reconnecting.
Did try this several times. Also did try to reduce the amount of Bluetooth access types the car tries. There are 4 connected: phone, audio, internet, contacts. Did also not help.
Has anyone an idea how to get a successful connection or what the cause of the problem is? Did search for similar problems with Bluetooth in cars, but could not find anything (except for that hint with flight mode which did not help).

What I tried by now:
- Flight mode, only Bluetooth (as already mentioned). No change
- Remove all bluetooth connections. Pair new. No change
- Delete data for sytem app "Bluetooth Freigabe". No change
All other bluetooth connections are working fine. Another Moto Z Play using Android 7.0 (01/2017) is working flawlessly with that car. Strange for me is that it didn't work on 6.0.1 in the same way it does now fail on 7.1.1, but the other Moto Z Play using 7.0 is connecting stable.
Still the question: Does anyone have an idea how to get the connection working?

Factory reset?
I see that you deleted all bt connection but do you have some apps that are using bt? Like for smartwatch, headphones...?
I have Amazfit and watch must be connected to be able to pair a new device. Drow me crazy first time when I had that problem. I thought that car audio is broken, then phone... After pairing, watch doesn't have to be connected to reconnect.
Sent from my KFSUWI using Tapatalk

Zeljko1234 said:
Factory reset?
Click to expand...
Click to collapse
I was afraid this reply could come. When doing a factory reset, I do following: Pack /data/media somewhere because Nandroid omits this. Backup all partitions using twrp. Backup all apk using adb. Export SMS. Export contacts. Screenshots of the launcher screens. All this takes about 2-3 hours. Then I struggle a week until my device behaves like before. I'd be willing to do it if I saw a reason why it could help.
Zeljko1234 said:
I see that you deleted all bt connection but do you have some apps that are using bt? Like for smartwatch, headphones...?
Click to expand...
Click to collapse
Headphone, yes, there is August EP650 configuration tool that is not necessary. Thank you for the hint, will try it. Also I read somewhere it may help to delete cache partition, that's also worth a try before doing factory reset. Maybe I'll wait for Oreo before trying factory reset, could be they fixed some bug there.
Edit: BatOn which shows Bluetooth battery for external devices could also be the culprit.
Zeljko1234 said:
I have Amazfit and watch must be connected to be able to pair a new device. Drow me crazy first time when I had that problem. I thought that car audio is broken, then phone... After pairing, watch doesn't have to be connected to reconnect.
Click to expand...
Click to collapse
That's a strange behavior indeed. Amazfit seems to do something wrong.

It doesn't get any better if you upgrade to Oreo, I've been having problems with my Moto Z play disconnecting and reconnecting to the radio in my Corolla constantly ever since I went up to nougat. To be honest I just bought a good pair of headphones and stopped using the radio. Good luck though, if someone finds something that helps let me know.

I'm using bt with car audio, headphones, smartwatch... No problems at all, except one with Amazfit. And that is related to their bt implementation, not Moto fault.
Sent from my KFSUWI using Tapatalk

Seems the last action to remove Bluetooth related apps was the right one . There were two apps installed:
1. BatOn showing the state of battery of connected Bluetooth device
2. August configuration app for August EP650 headset
Removed both as they are usually not needed and it seems to work now. Will see later if it only worked for the short test I did today (currently I try to avoid driving because of an injury) or if it keeps stable.

Good, you didn't have to factory reset after all
Sent from my XT1635-02 using Tapatalk