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MM and Android Auto

I flashed the MM upgrade on my US 5.5 and then did a factory reset, but now my Android Auto will not connect to my phone. I've tried swiping down and choosing MTP, but still does not connect. The phone is connecting to Bluetooth. After researching it seems to be a problem with Marshmallow and Android Auto. Does anyone know a fix?

Uninstall drivers and reinstall
Sent from my 6039S using XDA-Developers mobile app

There aren't any drivers. This is for Android Auto when I plug in to my Kia Sportage. Android Auto did work before the MM update, and it still works on other phones running 5.1.

Cant you just remove the device from android auto and then reconnect it?
Sent from my 6039S using XDA-Developers mobile app

I did remove the device, but Android Auto will not find the phone with the MM update. Seems to be a know issue with Samsung and LG devices.

I finally got Android Auto working by using the Developer options, Select USB configuration, RNDIS (USB Ethernet)

paulsaz said:
I finally got Android Auto working by using the Developer options, Select USB configuration, RNDIS (USB Ethernet)
Click to expand...
Click to collapse
I have the same problem and i tried to put RNDIS but my cell doesnt get the configuration. Did you do something to put it on RNDIS?

I got a new car (Hyundai Kona) with android auto but my Idol 3 5.5 (6045I) will not connect to the car screen. I have MM on it (but not the 2 latest garbage updates). I have tried USB debugging, multiple(10) USB cords. I cannot get RNDIS to work on the USB -it reverts to charging. So my USB is set to MTP. My phone plays AA on it's own screen just fine but will not send it to the car screen. Bluetooth works fine.
The auto dealer rep tried his iphone (apple carplay) and another android phone and they connected just fine so it is not the car.
Any suggestions?

Android Auto on Mate 9

Hi,
I am not sure if this problem is related to
- Mobile Phone
- Android Auto
- Car
So my question is: Does someone already has a working Android Auto connection with a car´s radio with this phone?
If so, I will continue this in Android Auto section.
Today I upgraded build to: MHA-L29C432B138
Car/Radio: Opel Astra K (MY2017)/ Intellilink R4.0
The connection could be established. But screen of car stays black. When touching screen or saying "OK Google" it accepts voice command.
My Mate 7 works perfectly...
Best regards,
Robert

no idea... working oke on my golf 7 2015 mib2 unit..
u using original cable... i also try ith lumia 950 cable, also usb-c but random disconnecting with this cable.

P9 is also working. I guess the problem is Mate 9.

Mine works with Pioneer but doesn't work well. It Will not play anything already downloaded to the device unless you connect phone to head unit forest and actually play something through Bluetooth first and THEN connect it. All permissions are set correctly etc. And what is with having to give it permission to use the data on the phone EVERY SINGLE TIME?

US model working flawlessly with 2016 VW Golf R... I did have to reinstall audible and spotify after connecting the first time in order for them to show up in the menu, but other than that, no issues with connecting, audio skips, etc. Very happy! Samsung S7 Edge was unusable with AA.

Got the International Mate 9 Pro and AA is working perfectly fine with my Pioneer 4100nex. I'm on the latest Pioneer firmware 1.09 if that helps anyone.

Works like a charm

What settings do you guys have? Do you have usb debugging or anything like that enabled in dev settings? Every time I hook up it comes up with the dialogue box to enable data access. Whether I click enable or not it will not play anything stored on phone. I've had this confirmed by Huawei Australia. They couldn't get it going either.
I have all the correct permissions set for all apps including android auto.
Any hints?

MontAlbert said:
What settings do you guys have? Do you have usb debugging or anything like that enabled in dev settings? Every time I hook up it comes up with the dialogue box to enable data access. Whether I click enable or not it will not play anything stored on phone. I've had this confirmed by Huawei Australia. They couldn't get it going either.
I have all the correct permissions set for all apps including android auto.
Any hints?
Click to expand...
Click to collapse
In developer options I do have "Always prompt when connecting to USB" turned off and "Select USB Configuration" set to MTP. I don't get prompted for anything on the phone. USB Debugging is off. I don't try to play anything from USB though, just use AA, Spotify, and Audible.
Other than that, I do have an Automagic script that when car ui mode is entered, the screen gets turned on, Waze is launched, slide to unlock keyguard is dismissed, and wifi is turned off. I won't need to do most of this when Waze is AA compatible, but until then, I can't live without it. This script works about 90% of the time, still haven't finished tweaking it for 100% success. Worst case, I have to turn the phone back on, swipe down on the notification panel, then select waze from "Notification Shortcuts".

bwillet said:
In developer options I do have "Always prompt when connecting to USB" turned off and "Select USB Configuration" set to MTP. I don't get prompted for anything on the phone. USB Debugging is off. I don't try to play anything from USB though, just use AA, Spotify, and Audible.
".
Click to expand...
Click to collapse
Seems this is possibly the issue. Whenever I connect usb it automatically changes the usb connection type to charge only. Won't let me change it to mtp, audio or anything else. Wonder if there is a hidden setting somewhere in emui that does this... Tried it in dev settings. Same issue. Charge only

MontAlbert said:
Seems this is possibly the issue. Whenever I connect usb it automatically changes the usb connection type to charge only. Won't let me change it to mtp, audio or anything else. Wonder if there is a hidden setting somewhere in emui that does this... Tried it in dev settings. Same issue. Charge only
Click to expand...
Click to collapse
I couldn't find anything else that I changed that seems relevant. I'm just using a standard USB to USB-C cable (Anker PowerLine+) plugged into the USB port in my VW Golf.
Did you change both of those settings I mentioned? If so, when you go back into dev settings does "Select USB Configuration" still say MTP, or did it default back to Charge Only? Maybe you have to reboot after? dunno...

bwillet said:
I couldn't find anything else that I changed that seems relevant. I'm just using a standard USB to USB-C cable (Anker PowerLine+) plugged into the USB port in my VW Golf.
Did you change both of those settings I mentioned? If so, when you go back into dev settings does "Select USB Configuration" still say MTP, or did it default back to Charge Only? Maybe you have to reboot after? dunno...
Click to expand...
Click to collapse
I changed those 2 you said but as soon as I plug in the Huawei cable (thought maybe it needed the Huawei cable) it changes itself to charging...
I'll keep looking into it. Thanks for your help though. This is obviously the issue.

I'm having the same issue in the US version on a 2017 VW GLI. My last two phones worked flawlessly.

MontAlbert said:
Seems this is possibly the issue. Whenever I connect usb it automatically changes the usb connection type to charge only. Won't let me change it to mtp, audio or anything else. Wonder if there is a hidden setting somewhere in emui that does this... Tried it in dev settings. Same issue. Charge only
Click to expand...
Click to collapse
Mine goes to charge only as well however my android auto is working perfectly.

It connects and on the phone side it seems fine but the head unit screen goes black and doesn't do anything.

Hi.. Is there anyway to prevent WhatsApp notifications showing up in android auto?

Mate 9 L29 - B156 in a Seat Ibiza 2016.
Android auto working fine.
You have reviewed android permissions, or if Google app or maps are set to close when the screen is turned off And enable activation?
In my old zenfone 3 that was the problem

Did any of you guys tried to enable the USB debugging mode?

Emil Borconi said:
Did any of you guys tried to enable the USB debugging mode?
Click to expand...
Click to collapse
JA! This was first thing, but no success.
I am also disappointed by Huawei customer care. They just point at Google and say it is not their fault.
Does anyone know how to log / where to find the log when "Force logging" is enabled in dev options in AA?

debart said:
JA! This was first thing, but no success.
I am also disappointed by Huawei customer care. They just point at Google and say it is not their fault.
Does anyone know how to log / where to find the log when "Force logging" is enabled in dev options in AA?
Click to expand...
Click to collapse
Open android auto, go to about, tap the Android auto title 10 times, you will see a toast saying your developer. Now from the 3 dotted menu on the right select developer options locate force logging and make sure it's enabled

Unable to use external DAC with S8+

I have no issue getting my Chord Mojo working with the UAPP app on my S8+ but when I try to use band camp, youtube or any other apps it will not route audio to the DAC properly. Note that UAPP uses a proprietary driver for routing data to the extetnal DAC. A notification comes up when connection Mojo to S8+ via micro usb-usb c otg cable(see screenshot below)
I have tried every option in the normal settinsg and developer mode but no matter what it just reverts back to "charge connected device". I have played around with all the USB settings in Developed mode;
Prevent automatic usb routing
Setting the usb device to audio source,
/MTP
Etc
Nothing works.
I even uninstalled UAPP, attached Mojo and opened band camp, still nothing. Worse yet, often it will freeze with Mojo connected and then restart itself or get stuck on the carrier boot screen during restart.
Seems that Android system is not allowing the device to connect properly although I can't be sure. I just want to be able to send all my audio to my exceptional Chord Mojo. Bummer because everything worked fine on S7 Edge running Android 7.0 when I selected MTP under developer options. Unless there's a fix I'll only be able to use Mojo with UAPP.

Im having very similar problem on S8, got an OPPO HA2 DAC, have bought a micro USB to USB C cable, and the phone is charging the DAC? It doesnt let me change the output as per your screen shot above.
Can anyone help?

I've ordered the meenova c to b otg cable, will report back.

i use andoird4viper with my DFR and it works. just had to lock the effect to headset and it should work system wide, as least for my case.

The meenova off cable made no difference with regard to getting Mojo to work with apps other than UAPP.

mstormer said:
i use andoird4viper with my DFR and it works. just had to lock the effect to headset and it should work system wide, as least for my case.
Click to expand...
Click to collapse
I'm not rooted and don't want to root.

Still no fix in sight but it is definitely a software issue and most likely with Android system processes.

Android Auto

Hi,
Did somebody try to use an android auto function? My car (Peugeot 308SW 2018) and the phone not connecting with latest (8.1.0) android version. I tried to enable an USB debugging (as workaround recommendation), but nothing changed...
Have you other idea or working solution?
thx!

rawen69 said:
Hi,
Did somebody try to use an android auto function? My car (Peugeot 308SW 2018) and the phone not connecting with latest (8.1.0) android version. I tried to enable an USB debugging (as workaround recommendation), but nothing changed...
Have you other idea or working solution?
thx!
Click to expand...
Click to collapse
Yes, it works perfectly in my mid 2017 Kia Cee'd SW. Check if you have android auto enabled(i have the option to disable it and the apple car play). Also, the usb cable is working properly when connecting to a pc?

At the car side is enabled, at phone side i didnt found any additional options...
The best result was the android auto icon at phone appears and disappears continously with 2-3 different cables.
Is it possible the car head unit firmware not compatible with N7P latest SW version?

rawen69 said:
At the car side is enabled, at phone side i didnt found any additional options...
The best result was the android auto icon at phone appears and disappears continously with 2-3 different cables.
Is it possible the car head unit firmware not compatible with N7P latest SW version?
Click to expand...
Click to collapse
Doubt it. The car is from this year, it seems unlikely(to me) that the firmware wasn't up to date.
Stupid question, you have the android auto app installed on the phone right? Android has a Car Mode but to use android auto you need to install the app 1st(https://play.google.com/store/apps/details?id=com.google.android.projection.gearhead&hl=en). If the link says that you have no compatible device, download the latest version from here(https://www.apkmirror.com/apk/google-inc/android-auto/)
For almost a year I thought my head-unit wasn't up to date as the android auto would freeze, the app would say that the head-unit wasn't up to date, waze would display random artefacts, etc.
Now with the N7p it is butter smooth, no funky stuff and way more responsive that when I was trying to use it with my Redmi 4 Prime(same cable but with a micro-b to usb c adapter)...

No issues with AA in Seat Ateca 2018.
Everything works like a charm.
For phonecalls, you need to select default sim first, otherwise the call hangs on a sim selection prompt on the phone.

I write to nokia support and they send:
- clear the bluetooth cache
- do a soft reset
after this steps working fine...

what is Bluetooth cache?

Tequila.CZ said:
what is Bluetooth cache?
Click to expand...
Click to collapse
You found here, how to clear: http://support.hereplus.me/hc/en-us/articles/115003497328-Clearing-your-Bluetooth-Cache-Android-/

Do you install android auto app on your smartphone ? some lands doesn't have android auto on the play store, so you need to download manually on apk mirror web site (arm64 version)
A good quality cable is also needed.

I'm having similar issues.
This phone won't work in both my VW cars.
If I clear all settings it works fine.
I get to my destination, unplug and then when I head out on my next trip it doesn't. Just a blank screen on the head unit and the phone has the green screen saying launch Android Auto on the head unit.
Tried the BT cache clearing as above. Will try a factory reset of the phone shortly too otherwise wait for pie and if still no go then sell the phone which I will miss
Though can't work without Android Auto now

It is definitely problem with Nokia 7 plus. In my car it connect and after few minutes black screen and solution is only disconnect and connect again.

matonka007 said:
It is definitely problem with Nokia 7 plus. In my car it connect and after few minutes black screen and solution is only disconnect and connect again.
Click to expand...
Click to collapse
I've found the bluetooth with my N7P poor anyway. This is my second one and the same as the first.
All HMD will do is send you a list of the bluetooth protocols they support.
So you may need to change your car ?

My 7+ works perfectly now.
Enable USB debugging and disable the extreme power saving settings.

Getting Android Auto to automatically connect to car headunit

Each time I get into my car and connect my OnePlus 6 via USB, I have to change the USB connection type on the phone to MTP in order for Android Auto to connect. Once I change the setting and it connects, Android Auto runs well and stays connected until I turn off my car. Without changing the USB setting, the phone will stay in charging mode and Android Auto does not connect.
My car is a 2016 Honda Accord EX and I am using an OEM cable. The phone is rooted, developer options are enabled, and USB debugging is off. When I go into the developer options and try to change the default USB connection mode to something other than charging, the setting change doesn't seem to take.
Is there a way to automatically use MTP mode when I connect the phone to my car? Or something else I can do to get it connected without having to change a setting on my phone each time I get in my car?

I would clear data, force stop, and reinstall Android Auto. I use it every day and have no problems at all. Connects automatically.
My HTC M9 had no end of problems with AA. Would not connect half time time unless I replugged it in, and the voice-to-text function was buggy as hell. My OP6 is smooth as silk.

Thanks. I tried that and even deleted the phone from my car. It didn't work. I had to change the mode to mpt to get it to do the initial connection. Same for reconnecting. Doh!

Do you use Tasker? I wrote a task that will automatically change the setting to MTP. It requires the Tasker plugin - AutoInput as well.

I do have tasker. How do I set it up to do that? Thanks.

theman22 said:
I do have tasker. How do I set it up to do that? Thanks.
Click to expand...
Click to collapse
So I actually created two different profiles/tasks.
1) Detects when USB power is plugged and then opens developer settings and scrolls automatically to usb configuration and makes the change. This profile/task requires the plugin AutoInput.
2) Uses AutoNotification to detect when there is a notification in your tray stating that the device is being charged. Then it will use AutoInput again to click on the notification and change it to 'USB for file transfer'.
I only attached #1. Import it into to Tasker and see if that works. If not, I can add the second option.

theman22 said:
Each time I get into my car and connect my OnePlus 6 via USB, I have to change the USB connection type on the phone to MTP in order for Android Auto to connect. Once I change the setting and it connects, Android Auto runs well and stays connected until I turn off my car. Without changing the USB setting, the phone will stay in charging mode and Android Auto does not connect.
My car is a 2016 Honda Accord EX and I am using an OEM cable. The phone is rooted, developer options are enabled, and USB debugging is off. When I go into the developer options and try to change the default USB connection mode to something other than charging, the setting change doesn't seem to take.
Is there a way to automatically use MTP mode when I connect the phone to my car? Or something else I can do to get it connected without having to change a setting on my phone each time I get in my car?
Click to expand...
Click to collapse
God, it's annoying. It happens in all the modern androids. My S8+ 5T and now my OP6

My OP6 has no issues connecting to my Pioneer AVH-2330NEX. Just plug it in and AA starts right up. Bluetooth is pretty reliable as well, which is how I connect most of the time.

It usually takes a minute or 2 for my AA to come up on my screen (2017 Charger). Once it's connected, it runs super smooth. But I wish it was a little more responsive once I plug in the cable. Now I have to wait for it to come up before I can launch any app (Maps, Spotify, etc)
I"m going to see if the MTP method makes it connect "faster". If so, I'll look into building a Tasker Profile as well like @azsl1326

azsl1326 said:
So I actually created two different profiles/tasks.
1) Detects when USB power is plugged and then opens developer settings and scrolls automatically to usb configuration and makes the change. This profile/task requires the plugin AutoInput.
2) Uses AutoNotification to detect when there is a notification in your tray stating that the device is being charged. Then it will use AutoInput again to click on the notification and change it to 'USB for file transfer'.
I only attached #1. Import it into to Tasker and see if that works. If not, I can add the second option.
Click to expand...
Click to collapse
This is really close. I had to add one more scroll down step in the developer menu and change the mode to MIDI. It doesn't work 100% though. If the developer options menu is already open, it reopens wherever it was and sometimes the scroll down goes too far... Perhaps there is a more stable way to do this?
Attached is my modified tasker profile.

theman22 said:
This is really close. I had to add one more scroll down step in the developer menu and change the mode to MIDI. It doesn't work 100% though. If the developer options menu is already open, it reopens wherever it was and sometimes the scroll down goes too far... Perhaps there is a more stable way to do this?
Attached is my modified tasker profile.
Click to expand...
Click to collapse
I have another profile that uses AutoNotifications to detect when there is a notification in the tray regarding USB charging. It will then use AutoInput to select this option from the notification tray and change it to 'Transfer files'. I can post that here if you are interested. It does require two paid plugins.
You could add a task to clear recents before running the AndroidAuto task - that way it should ensure that Developers Option screen is no longer active.

azsl1326 said:
I have another profile that uses AutoNotifications to detect when there is a notification in the tray regarding USB charging. It will then use AutoInput to select this option from the notification tray and change it to 'Transfer files'. I can post that here if you are interested. It does require two paid plugins.
Click to expand...
Click to collapse
If it works reliably, I'm interested.

theman22 said:
If it works reliably, I'm interested.
Click to expand...
Click to collapse
Here you go. I think both of these Auto plugins have free trials, so you should be able to try it before you buy it.

Disabling USB debugging has helped me

theman22 said:
Each time I get into my car and connect my OnePlus 6 via USB, I have to change the USB connection type on the phone to MTP in order for Android Auto to connect. Once I change the setting and it connects, Android Auto runs well and stays connected until I turn off my car. Without changing the USB setting, the phone will stay in charging mode and Android Auto does not connect.
My car is a 2016 Honda Accord EX and I am using an OEM cable. The phone is rooted, developer options are enabled, and USB debugging is off. When I go into the developer options and try to change the default USB connection mode to something other than charging, the setting change doesn't seem to take.
Is there a way to automatically use MTP mode when I connect the phone to my car? Or something else I can do to get it connected without having to change a setting on my phone each time I get in my car?
Click to expand...
Click to collapse
I replied to you in the other thread, OnePlus 6 and Android Auto
But to fix your issue, this MIGHT be the solution for you specifically. Setup an appointment with your local Honda dealer, and ask to get Technical Service Bulletin 16-059 installed.
This fixed my issue for my '16 Accord when AA wasn't working at all with my PH-1

Or you can just simply choose this option to mtp as default on USB connection. It's in developer settings.

Berlifan said:
Disabling USB debugging has helped me
Click to expand...
Click to collapse
I have read about this and disabled USB debugging. It does sound like it works for some users but it didn't make a difference for me, unfortunately...
surface13 said:
I replied to you in the other thread, OnePlus 6 and Android Auto
But to fix your issue, this MIGHT be the solution for you specifically. Setup an appointment with your local Honda dealer, and ask to get Technical Service Bulletin 16-059 installed.
This fixed my issue for my '16 Accord when AA wasn't working at all with my PH-1
Click to expand...
Click to collapse
I will go ahead and do this. Thank you for the suggestion!
Joyarup said:
Or you can just simply choose this option to mtp as default on USB connection. It's in developer settings.
Click to expand...
Click to collapse
I've tried this as well. The setting does not seem to stick. It sometimes works the next time I plug my phone into my car but the 2nd time I plug my phone in, the default in developer settings is back to USB.

azsl1326 said:
Here you go. I think both of these Auto plugins have free trials, so you should be able to try it before you buy it.
Click to expand...
Click to collapse
This did not work when I tried it today. I'm guessing there is some difference on my phone that would require the setting to be tweaked. I'll look into this.

theman22 said:
I have read about this and disabled USB debugging. It does sound like it works for some users but it didn't make a difference for me, unfortunately...
I will go ahead and do this. Thank you for the suggestion!
I've tried this as well. The setting does not seem to stick. It sometimes works the next time I plug my phone into my car but the 2nd time I plug my phone in, the default in developer settings is back to USB.
Click to expand...
Click to collapse
Didn't know that..

I had the same issue with a VW Passat 2016, and the solution was to enable USB debugging, and after that everything is working ok.
Unfortunately I'm facing another issue. If I'm initiating a call with the phone connected to AA, usually by voice command, the sound is routed randomly on the headset, speaker and sometime to Bluetooth.
Every time I have to set manually from phone app in AA on the car screen to route the sound to Bluetooth, and this is annoying. . Do you experience this issue as well?
Thanks!