Tmotec android stereo Bluetooth and update issues - MTCD Android Head Units Q&A

Hi I bought a Tmotec 5.1.1 android stereo last year April 2017. I'm starting to get issues with the Bluetooth. The issue I'm getting is when connecting my galaxy S7 it's hit and miss if it connects, but when it does it sometimes drops connection. It's very frustrating when it happens. I tried to park the car close to the house to see if it needed an OS update, but when I went into about device I clicked check for updates and says something like 'no image file' so can't check to see if everything is ok. As it's the 5.1.1 lollipop OS, does it cost to upgrade to a newer version and is the Bluetooth an app or is it built in?

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Bluetooth problems after Android L update

I wrote an Android application that control an RC car. The phone and the car communicates by bluetooth. I have tested the application with several Android based phones. The Os version was 5.0 and lower. I had problem with only one phone. That was a Nexus 5 with the newer version of Android. After the new update arrived to my phone, i just updated my phone. I changed 4.4.2 to 5.0, I have an LG G3. Unfortunatly after the update the problem occured on my phone too. The problem is that after the phone connected to the car the data send is getting laggy and slowing down and the car cannot be controlled, sometimes it work fine for few seconds. On every other phone I have tested the application it worked fine.
Anybody knows anything about that problem?
Thank

Bluetooth crashing car stereo since update

I have a 2014 Toyota tundra. Before the update my Bluetooth was working perfect. Since the update, anytime I turn on the Bluetooth, it reboots/crashes my stereo. Just wondering if anyone else has had this same problem?
Sam
I have a Toyota Avalon and I am also having bluetooth issues since the 6.0.1 update. I have to power down the stereo and bluetooth on the phone to get the Media audio portion of bluetooth to connect. The Call audio connects fine automatically.
I called Verizon and they have has some reports of issues with this. They documented the issue and transferred me Samsung with no resolution.
Marshmallow on all the Nexus devices appear to have issues with Bluetooth according to these sites, could the issue be a marshmallow wide issue?
http://www.androidpolice.com/2015/11/30/bug-watch-vehicle-bluetooth-call-audio-problems-being-reported-on-all-four-nexus-phones-with-marshmallow/
https://code.google.com/p/android/issues/detail?can=2&start=0&num=100&q=189188&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars&groupby=&sort=&id=189188
I just wanted to chime in. I have a 2004 Corolla and I don't have native Bluetooth audio connectivity so I use: FlexSMART X3 Bluetooth FM Transmitter. So far so good since the update to Marshallow and use with my LG HBS 750 Bluetooth Headset is ok as well. Sorry, sort of not really the same issue, but its working ok since Monday, when I took the OTA update to Marshmallow. Hopefully they Verizon/Samsung has a fix for this issue.
Same issue
I have a 2015 Highlander and have exact same issue. If you go to settings and then bluetooth, click the sprocket next to the paired toyota device and turn off contact and call sync, it will stop crashing your Toyota stereo. It does mean that your contacts and call history will not show in your Toyota system. I reinstalled android 5.1.1 from www sammobile.com/firmwares/database/SMN920V/ download 5.1.1 and follow the instructions at the bottom of the page. The download takes about 2 hours but worth having my toyota stereo working again. I have contacted Toyota and Verizon and both have been zero help. :crying:

Bluetooth issues on Oreo 8.0 & 8.1 update

Hi,
Since the Oreo initial update (8.0), when playing Youtube musics in my car, the title of the videos are not synced with the radio screen (a VW Passat). The first video played, the title is correct but from that point it basically stops updating or shows a previous played video title and not the correct one being played. On Nougat it worked perfectly...
So, I heard that Oreo 8.0 had some Bluetooth issues that Google addressed in Oreo 8.1. (you can imagine my question, right? ). When will Huawei release the update to our Mate 9?
BTW, anyone having Bluetooth issues with Oreo 8.0 that would like to share here?
Txs.
I've been having BT issues since the Oreo 8.0 update as well. For me, I use a BT to FM modulator for my car. Used to connect to it with zero issues before update. Now since, sometimes it won't even connect unless unpair and re-pair the device. This does not happen with any of my other BT devices oddly.
Sent from my Huawei Mate 9 using Tapatalk
In Developer Options I noticed there were options to change Bluetooth codec and bitrate. I have no idea if this will help, but it might be worth a try.
I get a crackling sound (BT headset), but sometimes also when I'm connected to the car in phone calls only, both ends of the conversation. I think my issue is more with an overloaded system at "quitting time". AT&T doesn't have enough towers in my area.
Had a BT issue with our car today (2014 Kia Rio). It failed to pick up when I told it to connect. ( Phone said connected but car didn't follow suit).Deleting the pair from the phone and the car plus a reboot fixed the issue for me. Sitting on B366 with stock everything.
My experience has been the opposite, running 8.0.0.366 (C432) with no BT issues. No issues now, no issues before under Nougat.
That includes connecting/streaming to cheap whiteline BT speakers, Sony BT speaker, Bosch and Clarion car radios, LG TV Soundbar, Xiaomi BT car lighter adapter, Gear S3 Frontier, Xiaomi Mi Band 2, sending files to a P20, sending files to a 2014 MacBook Air, etc.
All flawless, no disconnections even after extended periods of time (1h30 streaming continuously), no drop in sound quality, same long range.

bluetooth keeps forgetting device

my pixel 3 bluetooth keeps forgetting my car hands free system
i pair my devce as normal and for a few days a week at all is good the little phone icon appears on the honda display
then nothing
i go to the car system and it lists my pixel 3 as a stored device yet in the phone in previously connected devices the Honda HFT is not listed so i delete phone from car and rinse and repeat
i googled the issue and came across a similar issue on a different car brand and they suggested changing the avrcp version from the default 1.4 to 1.6 exactly the same infact ive tried all 1.3/1.4/1.5/1.6
i spoke to google via chat and they suggested network reset and delete and repair for and to report back if it happens again (which it has)
has anyone come across this issue before ???
i never had this problem on my my pixel 2 until it upgraded to android 9
im starting to think my car is too old for the software in the phone
the vehicle is a 2009 honda civic with factory bluetooth
as we never have an issue with the 2018 mazda we also own
as a last resort i am going to pair an old samsung tablet thats on android 5.1 and see how long that lasts as i dont think its the car system faulty as it remembers my phone
Malc1975 said:
my pixel 3 bluetooth keeps forgetting my car hands free system
i pair my devce as normal and for a few days a week at all is good the little phone icon appears on the honda display
then nothing
i go to the car system and it lists my pixel 3 as a stored device yet in the phone in previously connected devices the Honda HFT is not listed so i delete phone from car and rinse and repeat
i googled the issue and came across a similar issue on a different car brand and they suggested changing the avrcp version from the default 1.4 to 1.6 exactly the same infact ive tried all 1.3/1.4/1.5/1.6
i spoke to google via chat and they suggested network reset and delete and repair for and to report back if it happens again (which it has)
has anyone come across this issue before ???
i never had this problem on my my pixel 2 until it upgraded to android 9
im starting to think my car is too old for the software in the phone
the vehicle is a 2009 honda civic with factory bluetooth
as we never have an issue with the 2018 mazda we also own
as a last resort i am going to pair an old samsung tablet thats on android 5.1 and see how long that lasts as i dont think its the car system faulty as it remembers my phone
Click to expand...
Click to collapse
Have you updated to the Dec firmware? That has a patch for the Bluetooth issue.
Sent from my [device_name] using XDA-Developers Legacy app
Yes December 5 it says on security patch level
It was working ok this morning on way to work but forgot the device on way home
So the Samsung tablet is still connecting as it should
I'll leave it a bit longer in the interest of science
Is it plausible that the Bluetooth version is too new for the car ?? I have no other problem with newer Bluetooth devices
Anybody have any suggestions
Tablet is still connecting as it should without prompt

Bluetooth Meda not working with 2015 Cadillac Cue (SRX)

I'm pretty happy with the phone overall but I can not get Bluetooth media audio to playback on my 2015 Cadillac SRX (generation before Android Auto).
Phone connection is working fine. The phone is paired and Media audio is enabled on the phone. In the car when I try to select the source it just says "No other sources found" (though it does say the phone is connected).
Cue Versions:
Software Info: 23228505
HMI Build (from Home+Vol Down): GMG2_14.0F105
Phone is running Pie v1.11.
Any other Cue users out there? Is it working? What version is your car at ?
I recently had the same issue with 2014 Mitsubishi Outlander SE (suv). I got this phone one week ago and I couldn't play the media over the bluetooth even though bluetooth on my phone said it's connected (Hand Free System- Connected). On the infotainment screen, it said no connected device which is weird. I hope there is solution to this issue.
Thanks for chiming in, crazy1990. I did also post in the ZTE forum. Maybe it'll get some attention there. Guess I could also contact customer service directly.
In the meantime I did order this so I can get audio (through the AUX port) while keeping the phone charged:
https://www.amazon.com/gp/product/B07S33GV3V/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
Hmmm, it worked fine the first time I used it, the 2nd time the phone did charge. I'll play with it some more.
Just a follow-up... Received the Android 10 update from ZTE on Friday and the Bluetooth media problem with the 2015 Cadillac Cue is fixed.
Hopefully this will help crazy1990 too.
That's good to hear! I live in the US, so I don't know when the update is coming and I am waiting for it.
Hello, I received android 10 update few days ago. I confirmed that Bluetooth media streaming is fixed.

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