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 Also, the software is so out of date because o2 cba to release and update.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

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

What custom rom bypass car audio bt issues?

Hi all,
like many 5T users I bothered problems with bluetooth connection in car audio system (spotify and calling). I've tried everything what I found on forums (downgrading software, clearing cache, energy settings etc.) but with no success. Finally I red somewhere that problem is OOS itself and custom rom should do the work. My question is: what custom rom should I use (on my earlier phone (samsung note 3) I used Ressurection ones)? Did someone tried this way and could tell about results?

Im on cnp and everything seems fine when I connect to my truck.

Thank You for fast reply, but did You experience bt problems on car audio system earlier (with official oos)? And what is cnp?

Pan_Hrabia said:
Thank You for fast reply, but did You experience bt problems on car audio system earlier (with official oos)? And what is cnp?
Click to expand...
Click to collapse
Codename Phoenix rom

What problems? I've been running oos all long and no issues with my car bt.

Problems with bt connectivity (spotify does not work - stuttering and disconnects and calling also). On official forum it's a popular problem and has many potentially solution. None works for me so far.

Many problems with my car BT (mercedes w211) with TugaPower ROM (now on v26.0)
After the initial connection car reports no (mobile) signal but I can manually dial. Automatic / voice dialing does not work.
Almost on every call BT disconnects and I have to redial. I make the call and few seconds into it, it drops call back to the phone with the car radio reporting "waiting for BT connection"
I tried to look into the logcat but I see no related error(s).
I'm also looking for a good rom that works with my car BT.

MIUI 11.0.3 Bluetooth connection problem

Dear All,
I have bought this phone 1 week ago but I have problem with the bluetooth connectivity. When I would like to connect the phone to a bluetooth car device the pairing code request dialog not shows up and because of this the pairing fails. Do you have any solution for this? With Redmi Note 4 (MIUI 11.0.2.) the car works well. I tried it with other car devices but there was the same problem.
Thank you in advance!!!!:fingers-crossed:

Try going to Settings-Apps-Manage apps-Bluetooth and Clear data-Clear all data. It helped me for some time but now Bluetooth problems appear again and I have to do it every time after answering the call while listening to music via Bluetooth.

PhilMik said:
Try going to Settings-Apps-Manage apps-Bluetooth and Clear data-Clear all data. It helped me for some time but now Bluetooth problems appear again and I have to do it every time after answering the call while listening to music via Bluetooth.
Click to expand...
Click to collapse
It does not work. I think because of I use bluetooth wirstband...

Gaszi77 said:
Dear All,
I have bought this phone 1 week ago but I have problem with the bluetooth connectivity. When I would like to connect the phone to a bluetooth car device the pairing code request dialog not shows up and because of this the pairing fails. Do you have any solution for this? With Redmi Note 4 (MIUI 11.0.2.) the car works well. I tried it with other car devices but there was the same problem.
Thank you in advance!!!!:fingers-crossed:
Click to expand...
Click to collapse
Hi! try changing your AVRCP version from 1.4 to 1.6 in developer options

Thanks for reply! Unfortunately it does not work! The pairing request dialog window is still not popping up...

Gaszi77 said:
Thanks for reply! Unfortunately it does not work! The pairing request dialog window is still not popping up...
Click to expand...
Click to collapse
Maybe you need te change the bluetooth notification priority to high and maybe check permisions.allow it to show on home screen etc

Thank you for everyone! I found the problem! The app of my bluetooth watch caused the problem, after uninstalling it the bluetooth works again.

I face a similar problem with skoda car infotainment.
In my case pairing is successful but on the first call connection breaks. Even if connection is broken and car's infotainment starts seeking for a Bluetooth connection Redmi note 8 thinks it is still connected and it stucks there. when connection breaks a message pops up that reads something about AVRCP not supported and redmi note not responding
A have unpair both devices many times but same thing happens again and again.
I have to point that i came from a Redmi note 6 pro, where EVERYTHING regarding bluetooth connections and multiple connections were operated just fluently. I have redmi note 8 just 2 days
On redmi note 8 are always connected an amazfit stratos and a meizu ep51 handsfree and there are some other apps installed like mifit.
Do you thing that i should start first by unistalling all apps?

i unistalled amazfit app and it seemed that was getting better but i assume that phone it cannot deal with multiple bluetooth connections. Unforunately it cannot managed android auto (wired connection) and car infotaimnet (bluetooth connection). On the first call connection drops.
I flashed a custom ROM- based on China roms- but things didnt got better. Having both redmi not 6 pro (which handles all bluetooth connections just fine- even transfering active call via bluetooth headset to the car infotainment as soon as it establishes a bluetooth connection while i am getting into the car) and Redmi note 8 on developer options i copy all setting from Redmi note 6 pro to Redm note 8 but all issues are still there.
I wonder if it can be used the bluetooth app from the Redmi note 6 pro to the redmi note 8 but i dont have the knowledge to do it

I have the same problem. It sucks that redmi note 3 which i had before worked 100% ok...

All these issues make phone quite useless considering that everyone goes wirelessly. I wonder if this disappointing case is claimable from Xiaomi.

just noticed the same problem, both of my RN8pro bluetooth mac is 00:00:46:00:00:01 which is nonsense.
maybe you all got the same mac as mine, which is generic mac.

How can I check Bluetooth mac address ? Do I think there is something can be done?

Settings > about phone > all specs > status.
There's a bluetooth mac near the bottom.

Crescendo Xenomorph said:
Settings > about phone > all specs > status.
There's a bluetooth mac near the bottom.
Click to expand...
Click to collapse
I checked my Redmi note 8. It's seems normal, 28:16:7f:b5:65:2b is it?

MIUI 11 - Android 10 version?

The only workaround i found is to keep one connected bluetooth device at a time. So before i get into my car i have to disconnect bluetooth headphones and reconnect them after. Bluetooth management of Redmi note 8 is a big mess. I assume that is a phone's hardware problem its incapability to manage two or more bluetooth connections simultaneously.
I contacted Xiaomi customer care regarding bluetooth issues and i was finally asked to perfrom a test. I wonder how a test could resolve it

In the attached screenshot in developers options the max connected audio devices option is 2 but it's deactivated so i cannot changed it eg to 3. Could it be the solution to bluetooth connectivity issues? Is there any way to activate this option and change it?

Bluetooth not working
Hi ,
I have recently installed custom Pixel Experience Rom to my Xaiomi Note 8 device all things are working fine except teh Bluetooth. Please help

Question Poco F3 Not connecting to my car

I am new to Poco. This is my second post. I have got Poco F3 5G, MIUI 12.5.1.
My car is Kia Stonic and it is approximately 3.5 years old.
By Bluetooth, I paired my Poco with my car without any problem. It even downloaded my contacts too.
But it just WILL NOT connect to my car when I turn the engine on.
So far I reset my car Bluetooth system, unpaired then re-paired on my telephone. It still will not connect to the car.
My old Moto G7 plus connects absolutely fine.
Hopefully you guys might have few suggestions.
Thank you.

ErgG said:
I am new to Poco. This is my second post. I have got Poco F3 5G, MIUI 12.5.1.
My car is Kia Stonic and it is approximately 3.5 years old.
By Bluetooth, I paired my Poco with my car without any problem. It even downloaded my contacts too.
But it just WILL NOT connect to my car when I turn the engine on.
So far I reset my car Bluetooth system, unpaired then re-paired on my telephone. It still will not connect to the car.
My old Moto G7 plus connects absolutely fine.
Hopefully you guys might have few suggestions.
Thank you.
Click to expand...
Click to collapse
have you tried searching in settings for android auto, then tinkering with those settings?

oh, i was assuming you have an android auto enabled car... do you?
Failing that, not ideal, but you could try an auto connect app...
see here

Hello reg66, before answer you, I wanted to wait until the software update of my car done.
Unfortunately it didn't help.
The only way my POCO F3 5G connects to the car by USB cable via Android Auto. I suppose it is OK to connect by cable but every short journey I make I have to use this cable....very inconvenient.
It will be connected to my car even if I take the cable out until I turn the engine off.
As you have suggested I have tinkered with the settings of Android Auto but my efforts were to no avail.
On the other hand my old phone Moto G7 plus connects to the car as soon as I turn the engine on....Via Bluetooth.
So I suppose the culprit is my new phone.....Thank you.

ErgG said:
Hello reg66, before answer you, I wanted to wait until the software update of my car done.
Unfortunately it didn't help.
The only way my POCO F3 5G connects to the car by USB cable via Android Auto. I suppose it is OK to connect by cable but every short journey I make I have to use this cable....very inconvenient.
It will be connected to my car even if I take the cable out until I turn the engine off.
As you have suggested I have tinkered with the settings of Android Auto but my efforts were to no avail.
On the other hand my old phone Moto G7 plus connects to the car as soon as I turn the engine on....Via Bluetooth.
So I suppose the culprit is my new phone.....Thank you.
Click to expand...
Click to collapse
What about using one of those auto connect apps I linked to.... So that when you're car is detected it auto connects and launches android auto...

Ohh yes, you have just reminded me....Any particular one you may like to recommend?

i have a sonata 2018 and i had the same problem when i tried to connect my tablet Huawei tab 10.1
any way i had to go inside the care screen setting and just randomly clicked something in my Bluetooth setting and it worked
in the link you will a way get inside the car setting and look for Bluetooth stuff
sorry for my bad english i hope i helped you

for just auto connect (let us know if your android auto launches successfully when connected) this one looks to have good reviews....
but i had a thought.... have you reached the maximum allowed registered devices in your Kia? Try deleting one/some of the connected devices in your Kia's bluetooth settings, that may then allow auto pairing of new devices

Quote
reg66 said:
for just auto connect (let us know if your android auto launches successfully when connected) this one looks to have good reviews....
but i had a thought.... have you reached the maximum allowed registered devices in your Kia? Try deleting one/some of the connected devices in your Kia's bluetooth settings, that may then allow auto pairing of new devices
Click to expand...
Click to collapse
Thank you Reg. I'll have a look at that link.
I had already deleted the other devices anyway.

FMMMG said:
i have a sonata 2018 and i had the same problem when i tried to connect my tablet Huawei tab 10.1
any way i had to go inside the care screen setting and just randomly clicked something in my Bluetooth setting and it worked
in the link you will a way get inside the car setting and look for Bluetooth stuff
sorry for my bad english i hope i helped you
Click to expand...
Click to collapse
Thank you for trying to help me. Unfortunately your solution did not work in my KIa Stonic.