S10+ and Kenwood car stereo not working together - Samsung Galaxy S10+ Questions & Answers

I have a Verizon variant of the S10+ and a Kenwood DDX9704S stereo. For the first few months, both have worked fine together with no problems. 3 Days ago, I plug the USBC cord as usual and now I'm getting an error, "An access error of the USB device has occurred" everytime I plug in. I have tried all the normal methods of fixing it, new USB, updating everything, updating the stereo, and nothing has worked. I tried my wife's iPhone and it works and I tried my old Motorola Z2 and it worked. I tried my phone on a different Kenwood stereo and it did not work on it either. I called Kenwood and they say it is a phone problem and Samsung is saying it is a stereo problem.
Any suggestions?

Do you have anything like "USB debugging" on? I have the DDX9703S and haven't had issues so, maybe I can help.

No, i dont at this time. I have tried it on and off with no luck.

If you plug the phone into your computer, does it respond normally?

I have not tried plugging it into my computer, however I will try that as soon as I get Home

it works with my computer. same cord as in the car

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USB to 2.5mm Adapter not working

I decided that I wanted to use the USB to 2.5mm adapter that came with my device to connect my phone to the auxilarry jack in my car for music. When I hooke the adaper up the sound still comes from the device instead of the USB. Has anyone else had this problem.
Device info:
ROM 20273 from ppckitchen
Radio 2.42.40
Anyone else?
mine works freakin great
I may be dreaming, but I thought there was a problem with some roms and some adapters. Have you tried a different adapter?
No I just tried the one that came with my device. Evanbriggs which one do you use and what ROM are you running?
Edit: I see it in your signature. NM.
Does any sound come through at all? Do you get any sound when you wiggle the 2.5 mm Jack. Mine is kind of funny - I can't stick mine in all the way - if I do I only get mono sound rather then stereo - I have to push my jack in only a little more than half way to get stereo sound. All the way in results in mono - to far past half way results in no audio - Too little results in no audio. I suspected faulty adapter and never did test with another adapter though because I got tired of all of the wires anyway and just went with the Motorole T505 bluetooth and FM Stereo transmitter instead.
I get full stereo. Works like a champ with Resco Raido. i use a 2.5 -3.5 converter so i can use it in my truck.
I have not been able to get mine to function at all. I have tried wiggling, half way out, hlaf way in (lol). I cannot get it to funtion at all. I guess I will have to buy a diffrent one and try it. I was hoping to get some some Kitchen users to confirm which brand works.
I did this post about 6 months or so ago
Hi all, I looked at this and did fix it for the after market adapters a few months back. I have the same problem as you with the stock adapter and a 3.5mm adapter in it just too much of a pain to get it just right to work, the after market USB to 3.5 worked on stock ROM and then had issues with the DCD ROMs but not his fault as it was an issue with the 6.1 audio drivers, fixed by a simple wire snip in the adapter itself. If you do not get the audio to mute on the device when you plug in the USB then the line that grounds in the connector to do the mute and switch operation is not doing it's thing, suspect the adapter or connector in the phone. It is an 11 pin connector and quite complicated, so get an after market 3.5 to USB, find my post 6 months or so ago and isolate it to adapter or titan.
i had the same problem
my inline usb remote stop working for about 2 weeks..in fact the usb port just stopped working completly
my mogul wasnt being detected by the compute either but it would still charge
i thought i was a broken port but wen i boot into the bootloader while it's still connected it magically gets recognised by the computer
driver issues?
anyway activesync and the remote started workin again a few days ago...
but I know it will stop working again
stock usb to 2.5 never worked -rom prob?
My stock adapter has never worked. I bought an aftermarket usb to 3.5 and a set of headphones built with a usb plug and neither of those worked either. Still using DCD 3.12 from May. Is this a known problem with that rom?[/I]
Count me in!
And I thought I alone had these problems.
A week ago, I stopped receiving sound out of the left earpiece.
Two days ago, sound stopped coming out of the USB port altogether: It would continue coming out of the external speaker. Folks on the Metro gave me dirty looks as I tried this and that to restore the USB sound. I've tried two adapter cables (same brand, from eBay).
I have an XV6800 Verizon's OEM ROM (2.09)...but tons of software tweaks.
I may switch to BlueTooth. I have a pair of HP's BlueTooth stereo noise-canceling closed phones, for which I paid $100. But the on-off slide switch keeps turning ON in my commuting bag, and all I get is a depleted battery when I'm ready to listen.
I just tried on no2chemspre3 rom, I get audio out of the factory wired/2.5mm adapter. I have always had sound regardless of rom. I use the factory adapter and a stereo headset from my old ampd E816 (best phone in the world). I have never had a usb-3.5mm adapter or a usb-2.5mm-3.5mm combo to test though.
I am listening to some Dyslexic Speedreaders right now. Try a wired phone headset. Just to see if it would work for you.

[Q] Cannot connect phone to car via USB

This a rather specific issue, but none of the forums for my car were able to give me an answer. I drive a 2013 Hyundai Sonata GLS.
So I just recently switched from iPhone to Android, and I have been having a **** of a time getting the phone to connect to the car via the USB port in my 2013 GLS. With my iPhone, it was as simple as plug n play...not so much with the Android (it's a Verizon LG G2, for what it's worth), as every time I plug in the USB cable, I get "Connection Error" on the screen, and then it just switches back to whatever audio mode I was in before.
I know the USB port actually says "iPod" underneath it specifically, but the owner's manual vaguely hints at a universal USB music mode...I've gone through the menus and tinkered with some of the options, but am unable to find a solution. I really do not want to use Bluetooth. I will buy a car charger and aux cable and just have two connections if need be, but I gotta believe there's a way to have a non-iOS device hooked up through the USB port and be able to play music through it. I don't even need metadata to show up on the screen, just a simple connection would do it!
I am running AOKP 4.4.2. This issue persists even with MTP USB mode activated.

Kenwood car reciver does not recognize HTC 10 via USB

Hello!
I recently installed a Kenwood KDC-BT768HD in my vehicle. This unit has USB 2.0 ports and is supposed to support Andoird Audio. When I plug my (or my wife's) HTC 10 into the Kenwood's USB ports, with the HTC USB cable, the HTC 10 will charge, but the Kenwood does not recognize that anything is plugged in to it, and the HTC 10 doesn't recognize that anything has been plugged into it either. The Kenwood just says "NO DEVICE" and If I go to the USB settings in the HTC 10, everything is greyed out, so there is no way to set the USB mode. The HTC 10 works fine when I plug it into my PC or USB OTG cable, and the Kenwood recognizes when other things are plugged into its USB ports. Bluetooth seems to work fine. I am running stock Andorid 7.0 with the latest updates from Verizon.
I had USB debugging on, but turning it off didn't fix the problem. I also went through all the USB modes in the Developler options, and turned off Developer options altogether, but neither of those fixed the problem. I tried a different third-party cable that works with my PC, but it doesn't work either.
Any suggestions?
Thanks!
jbhtexas said:
Hello!
I recently installed a Kenwood KDC-BT768HD in my vehicle. This unit has USB 2.0 ports and is supposed to support Andoird Audio. When I plug my (or my wife's) HTC 10 into the Kenwood's USB ports, with the HTC USB cable, the HTC 10 will charge, but the Kenwood does not recognize that anything is plugged in to it, and the HTC 10 doesn't recognize that anything has been plugged into it either. The Kenwood just says "NO DEVICE" and If I go to the USB settings in the HTC 10, everything is greyed out, so there is no way to set the USB mode. The HTC 10 works fine when I plug it into my PC or USB OTG cable, and the Kenwood recognizes when other things are plugged into its USB ports. Bluetooth seems to work fine. I am running stock Andorid 7.0 with the latest updates from Verizon.
I had USB debugging on, but turning it off didn't fix the problem. I also went through all the USB modes in the Developler options, and turned off Developer options altogether, but neither of those fixed the problem. I tried a different third-party cable that works with my PC, but it doesn't work either.
Any suggestions?
Thanks!
Click to expand...
Click to collapse
Do any other phones work with this method?
I remember my brothers Civic came with USB for audio, and you could let in a USB stick for example, but it would only charge the device when plugged in.
Could just be how the headset is?
andybones said:
Do any other phones work with this method?
I remember my brothers Civic came with USB for audio, and you could let in a USB stick for example, but it would only charge the device when plugged in.
Could just be how the headset is?
Click to expand...
Click to collapse
If you google around, various posters in various forums report that it works, some even with older HTC devices. I have never tried it before, because I never had a car stereo with a USB input prior to the Kenwood I installed.
jbhtexas said:
If you google around, various posters in various forums report that it works, some even with older HTC devices. I have never tried it before, because I never had a car stereo with a USB input prior to the Kenwood I installed.
Click to expand...
Click to collapse
When I had similar issues as you on my old Samsung phone and Kenwood deck, the problem was the USB cable I was using. It was not recognized by either one of the devices as a data cable. Actually the cable itself was fine for other uses but just wasn't playing nice with one or both of the devices. Have you tried with the oem cable that came with the phone itself?
In my opinion, if your Kenwood supports Android Auto and yet that feature doesn't pick up your phone with Android Auto app at all, then it's a sign that the cable you're using is not up to the task.
Tarima said:
When I had similar issues as you on my old Samsung phone and Kenwood deck, the problem was the USB cable I was using. It was not recognized by either one of the devices as a data cable. Actually the cable itself was fine for other uses but just wasn't playing nice with one or both of the devices. Have you tried with the oem cable that came with the phone itself?
In my opinion, if your Kenwood supports Android Auto and yet that feature doesn't pick up your phone with Android Auto app at all, then it's a sign that the cable you're using is not up to the task.
Click to expand...
Click to collapse
I am using the HTC cable that came with the phone, model DC M700 / DC 1605. I also tried a USB-C cable that I bought from Amazon, and it doesn't work either.
jbhtexas said:
Hello!
I recently installed a Kenwood KDC-BT768HD in my vehicle. This unit has USB 2.0 ports and is supposed to support Andoird Audio. When I plug my (or my wife's) HTC 10 into the Kenwood's USB ports, with the HTC USB cable, the HTC 10 will charge, but the Kenwood does not recognize that anything is plugged in to it, and the HTC 10 doesn't recognize that anything has been plugged into it either. The Kenwood just says "NO DEVICE" and If I go to the USB settings in the HTC 10, everything is greyed out, so there is no way to set the USB mode. The HTC 10 works fine when I plug it into my PC or USB OTG cable, and the Kenwood recognizes when other things are plugged into its USB ports. Bluetooth seems to work fine. I am running stock Andorid 7.0 with the latest updates from Verizon.
I had USB debugging on, but turning it off didn't fix the problem. I also went through all the USB modes in the Developler options, and turned off Developer options altogether, but neither of those fixed the problem. I tried a different third-party cable that works with my PC, but it doesn't work either.
Any suggestions?
Thanks!
Click to expand...
Click to collapse
I have a similar problem with a Pioneer and MirrorLink, it worked fine before Android 7. You should see if there is a required Kenwood app that needs to be installed, that's the only way I could get my 10 with Android 7 to be recognized by my stereo.
jbhtexas said:
I am using the HTC cable that came with the phone, model DC M700 / DC 1605. I also tried a USB-C cable that I bought from Amazon, and it doesn't work either.
Click to expand...
Click to collapse
Have you tried Android Auto to see if that works at least?
Tarima said:
Have you tried Android Auto to see if that works at least?
Click to expand...
Click to collapse
I tried Android Auto, but it doesn't work.
lightweaponx said:
I have a similar problem with a Pioneer and MirrorLink, it worked fine before Android 7. You should see if there is a required Kenwood app that needs to be installed, that's the only way I could get my 10 with Android 7 to be recognized by my stereo.
Click to expand...
Click to collapse
There is a Kenwood app that I have installed, but it says it supports Android 6...nothing about Android 7. When I run the app have have the phone plugged in, it doesn't recognize the Kenwood.
Upon plugging the Android phone into the Kenwood, the Kenwood is supposed to offer to download the app, but it doesn't, likely because it doesn't recognize that anything is plugged in.
jbhtexas said:
There is a Kenwood app that I have installed, but it says it supports Android 6...nothing about Android 7. When I run the app have have the phone plugged in, it doesn't recognize the Kenwood.
Upon plugging the Android phone into the Kenwood, the Kenwood is supposed to offer to download the app, but it doesn't, likely because it doesn't recognize that anything is plugged in.
Click to expand...
Click to collapse
I feel like this is a problem with 7.0, it would probably work on 6. Is there a firmware update for the stereo itself?
My phone wouldn't be recognized in my Audi either, tried everything, wife's iPhone car play worked fine.... very frustrating... So I would just use it to charge. Then one day it started working! So much better than the Audi MMI. No idea what changed to make it work. Maybe Google play services updated?
Sent from my HTC6545LVW using Tapatalk
lightweaponx said:
I feel like this is a problem with 7.0, it would probably work on 6. Is there a firmware update for the stereo itself?
Click to expand...
Click to collapse
The firmware in the Kenwood was quite out of date. I updated it, but unfortunately, it did not help the problem.
jbhtexas said:
The firmware in the Kenwood was quite out of date. I updated it, but unfortunately, it did not help the problem.
Click to expand...
Click to collapse
If the phone is rooted you could try loading up a 6.0 ROM and see if that works, if not you may have to bug HTC and Kenwood.
lightweaponx said:
If the phone is rooted you could try loading up a 6.0 ROM and see if that works, if not you may have to bug HTC and Kenwood.
Click to expand...
Click to collapse
I contacted Kenwood, and their response was that the phone is not on the USB compatibility list, and thus there is no guarantee that it will work. Their compatibility list is rather lame....
http://www.kenwood.com/cs/ce/aoa2/
jbhtexas said:
I contacted Kenwood, and their response was that the phone is not on the USB compatibility list, and thus there is no guarantee that it will work. Their compatibility list is rather lame....
http://www.kenwood.com/cs/ce/aoa2/
Click to expand...
Click to collapse
The only other thing you could do is hope HTC or Kenwood releases an update that fixes the problem or try an Android 6 ROM if the phone is rooted.
How is your bluetooth streaming? I have a Tmobile HTC 10 and have audio skipping issues with any of the newer Kenwood decks. It works perfectly with the BT515HD a 2014 model, I upgraded to the new KDC x701, skipping issues, switched to the top of the line KDc x998, another early 2014 model, streams perfectly but tags on apps like Pandora don't go through. Switched again to the new release of what I started with, BT518HD, bluetooth streaming skipping issues. I f you can stream perfectly, I'd like to try the firmware you are currently on.

My phone won't recognize being connected to any computers after trying to usb tether

Hi all, I haven't been here for a while now, but I figure that this is the best place to put my issue besides maybe reddit. So I was trying to activate USB tethering yesterday as i do a lot in order to play some games on my computer since i don't have access to any ethernet, and something went wrong and it didn't activate despite having hit the switch on the phone. I unplugged my phone to turn it off since my computer hadn't recognized the tethering and tried to activate it again, but this time my phone only made the charging noise and wasn't picking up my computer at all. I then restarted my phone to see if that was the issue and got the same result. I then tried to plug it into my laptop to see if my computer was the problem and it did the same thing.
Today I tried plugging my phone into my laptop with my usb-c to usb-c cable (instead of my go-to usb-c to usb-a cable that came with the phone) and got some signs of life from the laptop, it makes the sound that says its plugged in, but the phone still only charges and the laptop picks up my phone as "USB root hub (USB 3.0)" and "Intel USB 3.1 eXtensible Host controller-1.10 (Microsoft)" in device manager. I also just tried clearing the cache in recovery but nothing has changed. Does anyone know what's going on here and how I can fix it?
Unrooted (duh), AT&T model (sorry idk the model numbers like i used to), latest updates and security patches etc
EDIT: power cycled it (let it die and turned it back on a few times until it wouldn't turn on again) and charged it back up again and that seems to have fixed my issue.
Quote100 said:
Hi all, I haven't been here for a while now, but I figure that this is the best place to put my issue besides maybe reddit. So I was trying to activate USB tethering yesterday as i do a lot in order to play some games on my computer since i don't have access to any ethernet, and something went wrong and it didn't activate despite having hit the switch on the phone. I unplugged my phone to turn it off since my computer hadn't recognized the tethering and tried to activate it again, but this time my phone only made the charging noise and wasn't picking up my computer at all. I then restarted my phone to see if that was the issue and got the same result. I then tried to plug it into my laptop to see if my computer was the problem and it did the same thing.
Today I tried plugging my phone into my laptop with my usb-c to usb-c cable (instead of my go-to usb-c to usb-a cable that came with the phone) and got some signs of life from the laptop, it makes the sound that says its plugged in, but the phone still only charges and the laptop picks up my phone as "USB root hub (USB 3.0)" and "Intel USB 3.1 eXtensible Host controller-1.10 (Microsoft)" in device manager. I also just tried clearing the cache in recovery but nothing has changed. Does anyone know what's going on here and how I can fix it?
Unrooted (duh), AT&T model (sorry idk the model numbers like i used to), latest updates and security patches etc
Click to expand...
Click to collapse
Check the ports And cable ends for trash and lint crammed in them possibly
TheMadScientist said:
Check the ports And cable ends for trash and lint crammed in them possibly
Click to expand...
Click to collapse
no dice there unfortunately

My phone won't recognize being connected to any computers after trying to usb tether

Hey guys my problem came back actually the day after i power cycled it and it seemed to kick back to life for a second, So I'm gonna post it again to see if anyone can help me.
So I was trying to activate USB tethering yesterday as i do a lot in order to play some games on my computer since I don't have access to any ethernet, and something went wrong and it didn't activate despite having hit the switch on the phone. I unplugged my phone to turn it off since my computer hadn't recognized the tethering and tried to activate it again, but this time my phone only made the charging noise and wasn't picking up my computer at all. I then restarted my phone to see if that was the issue and got the same result. I then tried to plug it into my laptop to see if my computer was the problem and it did the same thing.
Today I tried plugging my phone into my laptop with my usb-c to usb-c cable (instead of my go-to usb-c to usb-a cable that came with the phone) and got some signs of life from the laptop, it makes the sound that says its plugged in, but the phone still only charges and the laptop picks up my phone as "USB root hub (USB 3.0)" and "Intel USB 3.1 eXtensible Host controller-1.10 (Microsoft)" in device manager. I also just tried clearing the cache in recovery but nothing has changed. Does anyone know what's going on here and how I can fix it? I power cycled it the other day and it worked for the moment but it stopped working again the day after.
Unrooted (duh), AT&T model (sorry idk the model numbers like i used to), latest updates and security patches etc
Edit: forgot to mention, it still charges on every computer its plugged into

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