Bluetooth problem - Huawei Mate 20 Pro Questions & Answers

i have problem with bluetooth when display is off
on my mate 20 pro i have connect ford sync and galaxy watch and everything works perfekt
but if display is off a i get out of range of bluetooth for 10-15 sec after i come back to phone they want sync until i power on display of phone and then after few second
everything is fine
also with my car system if i live car with radio on and move away out of range connection between car and phone can't not sync after i get back in car
i must turn off radio in car and turn it on after everthing work fine
please help
how can i put my mate 20 pro to sync all pair device when display is off

I'm not having that problem with my Bluetooth car stereo (which is a Sony) but it does take about 1 minute to sync every time. I usually play a song or start maps navigation and after about a minute sound comes through my car speakers instead of the phone speakers.
Are you giving your phone time to sync?
You might also want to check if there are firmware updates for your car system. For my car stereo firmware updates need to be downloaded with a computer and installed via USB drive--there are no automatic OTA updates.
Other Bluetooth devices do sync immediately. The car stereo is the only device that requires a little time to sync but it was the same with my P20 Pro and Mix 2S so I don't think it's anything specific to this phone.
If you delve into the settings for your car Bluetooth you might also find a Bluetooth autosync setting that can be switched on and off.

Bluetooth must always be visible & try "Bluetooth Auto Connect" app.. works for me!

Related

[Q] Strange Bluetooth issue

So I got the Thunderbolt on release day and the first thing I tried when leaving the store was syncing to my 2011 VW Tiguan. It did sync fine with the phone (handsfree) and phonebook. I was using it without issue until I decided the other day to try streaming media to the radio. Both devices showed that the mediastreaming was paired as well as the headset.
Long story short... it didnt work. No audio was streamed thru the connection. OK so fine. Except now when I connect the phone to the car it first connects the headset and the media streaming profiles and then disconnects the headset. It will not reconnect at all now. (Actually it says that it is paired but disconnected)
I deleted everything and tried to re-pair it to no effect. I changed the phones name as well. I have tried a battery pull from the phone but it will no longer connect the headset profile to the car or download the phonebook.
**UPDATE**
I was able to pair it and use my jawbone headset. Would still like to get the speaker phone working.
Any thoughts? Im in the car for many hours per day and this is going to make me crazy.

[Q] Bluetooth auto connect

I can't see any option anywhere in my SGS2 to set a BT paired device as "authorized". Every time I enter in my car I've to manually select the BT device and start manually the connection.
I searched in the forum but didn't find answers.
I also tried to look at the filesystem and I found auto_pairing.conf file in which there are a lot of BT manufacturer brands listed in sections like "black list", "white list", .... Is it possible I need to manually modify this file to include my BT manufacturer in the white list section? It sounds really strange!
Is there any other way?
I'd love to know that as well.
I atlculay lvoe my sumnasg glxaay s2 wtih VliaRionlm mroe tahn my xobx
Update
I manually modified auto_pairing.conf file adding my car BT manufacturer without any success (I added it in white list with the name already mentioned in the file, so I think that's not a problem of brand name).
My SGS2 continue to ask me to manually select the device to connect to, even if only one BT device is available (car handsfree).
I have the same problem, which i didn't have with my Nexus One running Cynogenmod ROM. I keep my Bluetooth on all the time or most of the time and i would like (like i had in nexus one) when i turn on my car (with Sony MEX-BT3700U car stereo with Bluetooth) that the phone auto-connects with the stereo in a minute or less (or with my plantronics headset when i turn it on), but no, every time i have to go into bluetooth settings and connect on the paired device and then it's connected.
I heard about few application that could help but it would be nice to have it as native function on the phone. I haven't tried these apps yet but if anyone want's to try they can be downloaded from the market, firs is free, the second is not.
https://market.android.com/details?id=a2dp.Vol&feature=search_result
https://market.android.com/details?id=com.btautoconnect&feature=search_result
If anyone can help it would be greatly appreciated
I don't have this problem at all, on any ROM I've tried stock or not. Is your stereo also set up to auto-connect? And is it your phone or your stereo that's refusing the auto connection?
mudferret said:
I don't have this problem at all, on any ROM I've tried stock or not. Is your stereo also set up to auto-connect? And is it your phone or your stereo that's refusing the auto connection?
Click to expand...
Click to collapse
Stereo doesn't have any options, same as Plantronics headset (only ON or OFF), that means that with my old nexus one running CM (or Nokia n95 8GB) when the bluetooth is switched ON and i come near stereo or headset they connect automatically in about 30 seconds max, with my SGS 2 that doesn't happen, i tried everything but it wont auto-connect until i initiate the connection from phone manually.
I have to resolve this because it's killing me !
jartukovic said:
Stereo doesn't have any options
Click to expand...
Click to collapse
I wonder if that's the issue; IIRC it's my stereo that I've told to connect automatically rather than my phone. I'll verify on my commute home today.
Mine auto connects to my JVC car head unit, but doesn't to my Belkin Tunestage. No idea why. As it happens, this suits me but it'd be nice to be able to control it.
And the commute begins. The auto connection is an option on my JVC deck, no such option on the phone.
Sent from my GT-I9100 using XDA App
mudferret said:
I wonder if that's the issue; IIRC it's my stereo that I've told to connect automatically rather than my phone. I'll verify on my commute home today.
Click to expand...
Click to collapse
The stereo is recognized same as Plantronics and that is as a head set, but it doesn't want to automatically connect to either of them, every time i have to initiate the connection. There is one way to connect it (partially automatically ) but that's not the solution - i have to turn on the bluetooth on my phone before starting my car, then when phone is in searching mode if the car is started (stereo turned on) then it will connect automatically, if the search mode (that is active for a short time after turning the bluetooth) ended before i start the car (for instance if i keep my bluetooth on all the time on my phone) then it wont connect automatically.
Am i any clearer about my problem ?
I hear what you're saying but it appears that auto connection is initiated by my stereo. If I turn auto connect off on my stereo there is no connection until I tell my phone to connect. I don't see anything on the gsii settings to have the phone auto initiate the connection. I have a recent JVC deck fwiw.
Sent from my GT-I9100 using XDA App
I will check one more time is there any bluetooth settings on my car stereo, but i'm 90% sure that it doesn't have, because this is the first phone that doesn't connect automatically.
I have had similar issues with mine, it will pair with my Kenwood DNX520VBT but wont auto connect.
however i now have a workaround
Turn bluetooth on your GS2 first, then turn on you Radio. once my Radio boots up it initiates the connection and auto connect works.
if i turn on the bluetooth on my GS2 after my radio it never works.
ive got a sony bt3700 stereo, it connected perfectly with my samsung wave, i just upgraded to a galaxy s and i have to do it manually every time so its not the stereo.
Same thing happened to me, old nexus one with CM7 is connecting ok but i have to connect SGS2 manually or make sure that my bluetooth is ON on my phone before i start the car.
I may have the answer......
Hi,
I have a sort of work around.
My Pioneer head unit refuses to auto connect to my SGS2 and I have to do it manually (I connect from the radio in 4 clicks but thats not the point). This was driving me nuts as previous handsets I owned connected within 5 seconds of being in the car.
I then discovered ROMS and went for the Criskelo ROM and it put me on Android Version 2.3.6 (Not sure if that made a difference or its actually the ROM).
Now with that sorted I found that I have an extra function in my bluetooth settings. When I make the device visible I can then choose the visible time-out length. If I set this to NEVER then I have no problems connecting to the headunit everytime I get in my car.
The only problem I have with this is that I pop my phone into Airplane Mode each night and because that disables the bluetooth it loses the time-out setting so I have to put the time-out back to never each morning.
With setting the time-out to never I'm not sure what battery drain is like because I'm constantly on my phone and my battery depletes rapidly anyway but it seems like a fix for now.
I hope this makes sense and helps people out until a proper fix becomes available.
Cheers,
DJ Sploits
Hi All,
Sorry for bumping an old-ish thread, but it seemed the most appropriate thread, and better than creating a new one of the same topic!
This is what I believe to be true:
*IF* Bluetooth is enabled on the GS2 (and the phone has previously been paired with the car headunit) then when the car is turned on, it will auto-connect to the GS2
*IF* Bluetooth is NOT enabled on the GS2 (and the phone has previously been paired with the car headunit) then when the car is turned on, it will NOT connect to the GS2 (understandably!).
*IF* the phone has previously been paired with the car headunit, and the bluetooth on the GS2 is enabled *AFTER* the car has been started, it does NOT Auto-Connect.
From this, I assume that when the car is powered on, it searches for previously paired handsets in order of most recently connected first. If it finds one, then it WILL connect.
Now:
If I leave Bluetooth enabled on my phone, the battery is significantly depleted my mid-afternoon.
I've started using an app which uses the "rough location" (not GPS) to monitor where the phone is located. If it deemed to have moved in X period of time, then it enables bluetooth.
This is great, and works a charm ... BUT it does mean that bluetooth stack on the GS2 is enabled AFTER the car has been moving for a period of time, and thus does NOT auto-connect.
What I've been searching for is:
"When BT stack is enabled on GS2, can it look for previously paired devices and initiate the connection itself?" (Rather than the car connecting to it?) Is there a script or app to do this?
Hi WTFH,
I think it might be more headunit specific. I always have my bluetooth on but it wont connect automatically to my headunit unless I have it set to constantly discoverable (on the handset).
I also use a power saving program called Green Power Premium which will cut bluetooth/data/wifi after a certain amount of time when the phone is in a sleep state. Its great fro saving power as my phone isnt constantly looking for a wifi signal (I don';t use it to control my bluetooth though as I need it on for my car).
Hey DJ_sploits,
Thanks for that ... Yes, I understand that some headsets do not auto-connect to the GS2 if the phone is NOT visible.
But what does seem to be constant is that the GS2 will not auto-connect to any of the headsets if the bluetooth stack on the GS2 is enabled AFTER the headset has come online and available.
One workaround I'm thinking of is:
Enabling a profile which says "When connected to a power source (I'll have to use the power adaptor) then enable bluetooth". Connecting my phone to the power first before starting the car should enable the BT stack before the headset tries to connect.
In fact I could extend this to say "Only enable bluetooth when using power adaptor, and not connected to wifi".
It's still a pain to do this though, as I tend to just jump into the car and don't want to faff about with connecting this and that.
The only other work around I use is to set the visiblity to constant (depending on what android software version you are on). My headunit always picks the phone up if I have it setup like this. the only thing with that is it will eat the battery even more (which is annoying considering there are other phones out there that constantly have their bluetooth on and you never see the battery getting hammered).
The only flaw I can see in your method is the fact you need a power source to knock on the bluetooth. Great for powersaving but it would then mean you would have to remember to connect it to a car charger everytime you got in the car (not too bad if you have it constantly plugged in to the cigarette lighter) and as you set this can be a bit of a faff.
The only way I can see in sorting this is using a power saving app but having your visibilty constantly on for the bluetooth and then we just hope it doesnt eat the battery too much (not to bad for me as I have a charger at work but could be a pain for others). The only problem with this (apart from the battery issue) is that if you knock the bluetooth off or knock the phone to airplane mode (as I do at nights) then when you knock the bluetooth back on it forgets that you want it to be constantly visible so you have to go through the settings and check the box

Bluetooth problems

Just picked up my C5 Ultra, was happy until I tried to use its bluetooth with my car's built-in system (Mazda).
I have two problems:
- continuous stuttering to the point it's not usable, usually starts 1-2 minutes after starting to play music
- when trying to make a call, the phone doesn't route the call to the car, it shows it sending audio to bluetooth device, but no sound comes it also doesn't respond to the call end button in my car
Anybody else with bluetooth problems? Strange thing is it's only my car, it seems to work fine with my bluetooth headset. And there were no issues with my car with my old phones.
same problem here
Thank God someone posted this. I also have a bluetooth headset and from time to time, there's some stuttering then the music stops playing. To fix this, I have to turn off my bluetooth in my phone and restart my bluetooth headset and pair the two again.
I thought this issue is only limited to audio devices. I bought an LG watch urbane and from time to time, the watch gets disconnected. When I try to pair it again, it won't connect even if I try several times. It will only connect if I restart my watch and try to pair it again.
I also have a Moto 360, and there's a lot more random disconnects with this phone than any other phone I've used before. However, it does normally reconnect very quickly. But I did have to disable the vibrate on connect/disconnect because it got to be annoying.
I've given up on my car's bluetooth and using another bluetooth receiver and aux-in to my car's stereo. It seems that the older the bluetooth device, the more likely to have issues. Bluetooth 3.0/4.0 headsets seem to work fine.
thejamesarnold said:
Thank God someone posted this. I also have a bluetooth headset and from time to time, there's some stuttering then the music stops playing. To fix this, I have to turn off my bluetooth in my phone and restart my bluetooth headset and pair the two again.
I thought this issue is only limited to audio devices. I bought an LG watch urbane and from time to time, the watch gets disconnected. When I try to pair it again, it won't connect even if I try several times. It will only connect if I restart my watch and try to pair it again.
Click to expand...
Click to collapse
by the way, I have tried my watch urbane connecting to my huawei 4x and it doesn't get disconnected randomly. If it gets disconnected because I left my phone from another room, it will quickly get connected again when I'm near unlike the C5 Ultra that needs my watch to be restarted to be able to connect again.
Check In settings -> xperia connectivity -> throw settings -> Auto-select wirelles option if it is close. if not, close and try. Maybe this help
Not working with my Huawei Watch, it gets paired but inmediatly disconnects asking "add as trusted device?" and after that it's imposible to reconnect. Any help will be will be welcomed.
This phone honestly sucks in many ways. I love the hardware but the software and the cpu is the problem on this phone. Bluetooth sucks, slow processor and ...yea..slow loading on everything. I know it's the phone's bluetooth that disconnects my bluetooth earphones and car audio because it never happened on my Nexus 6. We'll just have to wait till Sony releases Marshmallow on our phones.
Bluetooth cuts in and out when paired
Updated to marshmallow and my Bluetooth still cuts in and out when paired to my boss mini speaker .Sony really has to fix this if they want to remain in the competitive cellphone market.If any suggestions on how to solve this issue please help.
After the update I am also having problems with Bluetootn. In sleep mode Bluetootn off. Accordingly, all the time the connection is lost with the Sony SmartWatch 3 hours. Tired of this problem
nnmka said:
After the update I am also having problems with Bluetootn. In sleep mode Bluetootn off. Accordingly, all the time the connection is lost with the Sony SmartWatch 3 hours. Tired of this problem
Click to expand...
Click to collapse
Yup, bluetooth shutting off is causing all sorts of problems with my Pebble smartwatches too. Basically made them completely useless because of the disconnects soon after the phone is idle.
I'm pretty sure it's tied to the Doze function in Marshmallow, but even when I disable Doze for the Pebble watch app and bluetooth share app, I still have issues. I even got an app called "Disable Doze" to completely turn off Doze functionality. It seems to help, but I still have occasional drops.
Bluetooth seriously sucks on this phone...
Found a solution
I found out what causing that bluetooth disconnects on my Xperia C5 Ultra Dual. It's when wifi and bluetooth are turned on at the same time. I turned off wifi and bluetooth connection is now stable.
My pebble also was disconnecting and it was annoying with all the vibration and it wasn't event reconnecting. But after I turned off the wifi bug is gone. I read that this is a common bug with Xperia Sad...
stenlybg said:
I found out what causing that bluetooth disconnects on my Xperia C5 Ultra Dual. It's when wifi and bluetooth are turned on at the same time. I turned off wifi and bluetooth connection is now stable.
My pebble also was disconnecting and it was annoying with all the vibration and it wasn't event reconnecting. But after I turned off the wifi bug is gone. I read that this is a common bug with Xperia Sad...
Click to expand...
Click to collapse
I'll have to give that a try, I stopped using my C5 because I couldn't stand the bluetooth issues anymore. I'm using, of all things, my 4 year old Nexus 4 now (which I should say works perfectly...)
bluetooth of sonyc5ultra is worst working in connectivity . useless , disconnecting from blue tooth device by its own. Getting irritating by bluetooth issue.
Same Problem here also
I have BLUEDIO bluetooth headphone, it disconnect after restarting bluetooth in my sony c5. When I try to pair it again, it won't connect even if I try it again and again the whole day. It only connect if I restart sony c5 and try to pair it again.

Mate 10 Pro - Bluetooth woes

It's a long post - sorry please bear with it..........thanks
Performed a firmware update couple of weeks ago see thread: https://forum.xda-developers.com/mate-10/help/mirrorshare-stopped-t3731964 and all seem well until 2 days ago.
All revolves around bluetooth:
Background:
I have 3 devices which I use regularly for BT connections
Huawei Watch 2 (came with phone )
Car (phone calls only)
BT Headset (Sony SBH52) - used for Music only (my car will not play music over BT so I have my BT headset connect to the AUX port)
Limitation:
A phone can only connect to 2 BT devices at once (as far as I know/have witnessed)
Scenario
Phone is always connected to watch
Get in car - phone auto connects to car BT.
I manually connect phone to BT headset - it drops connection to watch so now my phone is connected to car for phone calls and headset for playing music.
GREAT This works for me and all is OK...and has been working OK for last couple weeks. (I used to use this method with my Nexus 6P and had no issues - I didn't have the smartwatch2 then)
Up until 2 days ago
Phone kept losing connection to BT headset - it would connect and then immediately drop
I couldn't do anything in BT settings on my phone (such as disconnect or forget).
Did all the normal stuff - BT on/off : headset on/off - no change.
"Forgot" BT connection for car.
Headset still had same issue.
Finally removed connection for headset.....reconnected to car BT.
Car BT then started dropping
Finally 'forgot' BT connection for car
Watch appears connected OK however it used to display in the drop down menu what BT device I was connected to - now it doesn't.
The BT symbol also used to have little marks at the side of it to show it was connected to a device - now it doesn't
When I look in BT settings on phone I see my device listed however I am unable to "forget device" or tell if it is connected - only way I can tell if connect is check on the settings on watch which say that it is paired and connected - plus I do get all the alerts on my watch so it's definitely connected and working.
I have factory reset watch, phone, car system and BT headset - still have the issue
Any ideas?
Mate 10 Pro
Firmware: BLA-L09 8.0.0.127 (C432)
zCRiSiSz said:
Huawei Watch 2 (came with phone )
Click to expand...
Click to collapse
Short OFFTopic:
Was it a bundle? Or how did you get the watch?
EGOiST1991 said:
Short OFFTopic:
Was it a bundle? Or how did you get the watch?
Click to expand...
Click to collapse
It was a bundle with Vodafone UK - first 1000 customers to order phone on a monthly contract received HW2
Further testing/info
After another factory reset of the phone and a 'disconnect & reset' of the HW2 and seem to have got it working'ish....
So -
Car BT connects fine and displays in BT settings on the phone as connected
Sony SBH52 headset - connects fine and displays in BT settings on the phone as connected
HW2 - although it connects it does not show in BT settings on the phone as connected - also unable to do anything on the settings for it :|
I'm not convinced that the disconnect & reset is actually performing a factory reset of the watch.
Perhaps this needs posting in the HW2 forum - is there one?
hi guys. came to this site because of the same problem.
Found a fix - reset network settings.
after going into settings menu and resetting network settings,
connect to your bluetooth device again and it should work (at least for me)!

Bixby Routine with car bluetooth not always activating?

I made a bixby routine as follows: when my phone connects to my car bluetooth (VW Passat), it should do several things. But the problem is that the routine almost never starts working by itself? It only works after I manually turn off bluetooth and turn it back on after im already connected to my car. Anyone else have this problem? With tasker there's no such problem when connecting to my car bluetooth, but i'd like to use bixby routines instead of tasker...
Even though I have another routine which does several things after connecting to my BudsLive, and that one always works by itself without problems.
When you get in the car do you activate "media" on car, or just get in and let the phone connect to car? I have noticed on a lot of devices if you don't "fully" connect to media on car, such as playing streaming music many phones don't see the connection unless Media connected (you can pause music). I'll get phone calls fine, but no messages or Maps audio at all unless Media connected. As I said, same with all my older phones, started I think around Android 9. Think part is car manufacturers don't want to support phone options anymore, they want you to use Android Auto or Car Play and leave the software to Google and Apple.
mt2020 said:
When you get in the car do you activate "media" on car, or just get in and let the phone connect to car? I have noticed on a lot of devices if you don't "fully" connect to media on car, such as playing streaming music many phones don't see the connection unless Media connected (you can pause music). I'll get phone calls fine, but no messages or Maps audio at all unless Media connected. As I said, same with all my older phones, started I think around Android 9. Think part is car manufacturers don't want to support phone options anymore, they want you to use Android Auto or Car Play and leave the software to Google and Apple.
Click to expand...
Click to collapse
The thing is, my car bluetooth doesnt want to activate "media" lol. It only connects for phone calls. When i try to activate media the button always returns back to off. Seems to be a samsung/volkswagen problem since i see alot of posts with the same problem when googling
I had Bixby Routines set up on my S21 to do some things automatically when connected with a car Bluetooth kit. Everything was working fine until the last update of One UI 4.0. After the update, nothing happens when I connect to the Bluetooth kit in the car. I deleted the Bixby routine, reset the app data, deleted the Bluetooth partnership, and reconnected to the car's Bluetooth kit - nothing helped.
When I create Bixby routines using regular Bluetooth headphones, everything works fine. The problem only occurs with the car's Bluetooth kit. While searching the Internet, I found out that there was a similar problem with Bixby procedures before. Back then, Bixby routines would not work if the bluetooth device did not have an audio profile. My BT car kit does not have such a profile, only a hands-free profile is available. Has the old malfunction returned?

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