Question Chinese Android head unit - Android Automotive OS

Hello,
I welcome all dear participants.
I would like to ask you for help.
I bought a Chinese Android head unit. Everything works very well.
However, sometimes when starting the car, the screen freezes. I have to remove it, pull out the cable, and then it starts, but all the settings are reset. I connected all the cables according to the diagram. What could be the problem? Connection error or software?
If there is a solution, please help.
Thanks in advance.

Not android automotive. request moderator move to (Android head-units) forum if wanted

Related

Please help out with my Dead Infrared

Hi! dudes,
Could anyone help me out of this, my xda's infrared has ceased to function properly Every time I try to beam info with other devices, its system detects my mobile device being connected to the desktop even when I am completely on the move. I also have tried hard resets several times but they don't do much with my infrared connectivity. Has anyone had any solutions to this, please kindly let me know. Thank you guys.
Ken
Any comments, anyone??? :?
IR Problem
I have the same problem here.
Did you get any solution yet?
Try to burn new rom from ROM Kitchen.
Ken_xda said:
Hi! dudes,
Could anyone help me out of this, my xda's infrared has ceased to function properly Every time I try to beam info with other devices, its system detects my mobile device being connected to the desktop even when I am completely on the move. I also have tried hard resets several times but they don't do much with my infrared connectivity. Has anyone had any solutions to this, please kindly let me know. Thank you guys.
Ken
Click to expand...
Click to collapse
I had a similar problem when I cooked a rom with "foldable keyboard" option ticked. I did not know then, but I just flashed the device with original rom upgrade and it started functioning. Somebody later wrote to my query that if any other application using the same com port (com3) is active, it disables the infrared). check if there is any such application running.
That folding keyboard also snatched my com 1 gps port as well, even though I disabled infrared beams, once I cooked a rom with no folding keyboard it gave back the com port and gps was fine.
Ir working again
Hello,
I just uninstalled my foldable keyboard, and Ir was working again
Sometimes things can be simple
Ian

[Q&A] GT-B9150 Samsung Homesync *ROOT*

Q&A for GT-B9150 Samsung Homesync *ROOT*
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.
Before posting, please use the forum search and read through the discussion thread for GT-B9150 Samsung Homesync *ROOT*. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.
Thanks for understanding and for helping to keep XDA neat and tidy!
Homesync Root
Hi I tried following the instructions in this forum for rooting my homesync with saferoot and I have not succeeded. I tried MJ3 and MH8 software to no avail. The script gets stuck in "trying to disable knox". Any help is appreciated.
Anybody know if there's a workaround to enable Bluetooth audio on the Homesync?
Forgotten Screen Lock Password - want to reset the HomeSync
I've forgotten the password to the lockscreen on my HomeSync and there's no way to recover it. I don't really care about the data on the device, but I'd like to start over with it by resetting.
I've tried using Odin and downloading various firmware... The user data hasn't been erased to include movies, files, and the password as well. It just boots to the lockscreen but I can still access files via the Homesync app.
I've tried using Android Device Manager to remotely wipe it and it's not setup. I've tried entering the wrong password multiple times to get to a "lost password" via my gmail but that doesn't work either. It simply makes me wait 30 seconds after each set of 5 failed attempts. It never asks for my Google Account info.
My next step is adb, but I don't recall enable USB debugging. I've downloaded JDK and SDK, opened a command line and ran "adb devices"... it starts a server but no devices are listed when my HomeSync is connected via USB. My drivers are loaded and I also have Kies installed on my PC that has no problem seeing the HomeSync and tells me to unlock it before continuing with Kies.
I've been after this for about 2 weeks, reading this forum and trying to find a way to fix it, but now I'm at the point that I need to ask questions and get some help.
XBOX 360 PC controller working with Samsung Homesync! Need Help With Bluetooth PS3 C
First off I would like to give big thanks to everyone here on the boards, secondly I’m proud to announce I have successfully rooted my GT-B9150 Samsung Homesync (MH8 firm).
I have a XBOX 360 PC controller (Wireless USB Dongle) working!
(I still have not tested with MAME4droid, still downing “MAME 0.139 ROMs-Flood” @ alt.binaries.emulators.mame)
Microsoft Bluetooth Sculpt Comfort Mouse working!
Microsoft Bluetooth Wedge Mobile Keyboard working!
I would like to know if anyone has a method of adding a Bluetooth Garmin Android GPS to the Homesync? I would also like to add a Bluetooth MIC if possible for Google Maps and I would like to use a PS3 Bluetooth controller if possible.
My reasoning behind this, I am installing the Homesync via HDMI to 10” touch screen head unit in my work truck for mobile computing, Neutron HD-Flac music spinning and GPS Mapping.
My Homesync has 120 volt AC to 12 volt DC transformer. I am thinking of wiring Homesync directly to dash accessory 12DC feed but am currently using a line convertor for now.
Thanks for any input!
Do you have more details? I want similar scenario. I have investigated about 6 months ago and do not believe a touch screen will work due to low level and maybe drivers. There are some GPS USB dingle that are said to work about 100USDollar. I already have Xenarc touchscreen installed in vehicle as well as the GPS USB above. Just waiting for some drivers etc. I resolved to be able to use a mini keyboard pointer that natively works with Bt on HomeSync unmodified. I have mini microphone that I believe will work ok ... don't know about car road noise though.
Please, how did you achieve the root and what do you use for GUI/launcher, the TouchWiz ... nah
---------- Post added at 08:23 AM ---------- Previous post was at 08:21 AM ----------
P.S. The reason I think about using as mobile device is that this HomeSync ducks to use with Sam HomeSync app. Never got it to work even with support. Gave up for that purpose.
My head unit in my truck has touch screen but no support for HDMI input and touch, so for now I am stuck using Bluetooth keyboard/mouse and the Samsung screen mirroring app(s). I was able to sync my Samsung Note 3, but I think after I rooted I lost that function.
I just ordered a GlobalSat Bu-353-S4 USB GPS that has been tested using other android devices and is said to be working. Here is the link I used to download apps and found USB GPS dongle recommendations. http://usglobalsat.com/forum/index.php?topic=4361.0
I will surely ck tomorrow to let you know if I get it working with Samsung Homesync and Google Maps.
As for rooting the Homsync, I just followed the instructions found on this board. I had the latest firmware installed out of the box…here is a link to instructions I followed http://forum.xda-developers.com/showthread.php?t=2497102&page=7
I also followed same instructions on how to enable play store, works flawlessly and I can reboot without loosing ability to continue using Play Store Rooted
I’ve installed Nova Launcher to customize look and home screen feel, I currently have the Samsung GUI hidden and my Homesync looks and feels a lot like my Note 3 now!!!
Wow! Thank you so much!
GlobalSat Bu-353-S4 USB GPS Working With Homesync & Google Maps!!!
​
Here is a follow up my my Samsung Homesync and GPS with Google Maps. I purchased a GlobalSat Bu-353-S4 USB GPS for $50 with overnight shipping included on Amazon
After tinkering and making a few changes I am especially happy to report that I am able to use the BU-353-S4 with Google Maps! I had to enable Mock USB Host under Settings/Developer Options/Allow Mock Locations on the Samsung Homesync. Under PL2303-GPS Mock Location Provider Setup I have Navilock (on) & Baudrate 4800 (checked)…working great!
My truck home screen on samsung homesync
A big thanks to everyone on the board's!
I have this USB purchased and installed in dashboard, planning to purchase and use another dongle, but now will use the HomeSync.
I have another update to my configuration…I had a problem with my power inverter not powering up the Homesync so I now have the Homesync wired directly to my dash key accessory. This way I will never forget to manually turn off the Homesync and will not drain my battery.
I made sure to test the power supply brick that came with the Homesync; it shows 12.5 volts DC on my multimeter!!!
I also ran into a small issue with Google Maps that I had not anticipated. You need to have internet connectivity to search and rout with Google Maps. Yesterday I was searching for an address and had to stop at McDonalds for free Wi-Fi. Once I mapped out my destination I was able to GPS the entire rout with turns with no Wi-Fi connected.
I have downloaded Sygic Navigation for Android Offline. I am able to use my USB GPS with this app and its uses familiar Tom Tom maps but I am still learning the interface so im not sure if I will keep using it. It’s defiantly not as simple and effective as Google maps but seems solid for use in a pinch with no internet connection.
One more issue I have with the Homesync installed in my truck is that the unit gets very hot if you don’t allow for some type of cooling. I had the very small homesync sitting in my center arm rest console running for a couple hours and found it to be super duper hot in 60 degree weather. Temps rise to mid 90’s during the summer time here in Detroit Mi, so I need to rethink my mounting location and possibly add some additional cooling.
Good points
Stuck on bootloop after odin
Hi,
I have a samsung homesync (gt-b9150) and I try upgrade firmware to MJ3. After I upgrade with odin, the device start a bootloop. Is there a fix for this?
Thanks
Could someone please help me transfer a new SSD 1T drive to my Homesync successfully?
Thanks to this forum I am pleased to announce I have successfully rooted my Homesync!
I recently opened the case and have removed the internal 1T hard drive. I made an attempt to clone the drive using Clonzzilla with no luck (tried disc to disc and disc to image). I formatted a new Crucial SSD 1T to ext4 and installed into Homesync with no luck (Homesync boots up fine, but shows no external storage)
Thank you for this info. I must admit I am confused by your post. You say 'no luck', but you say 'successful' ? Thanks
Hi there I am new to rooting though would like to minimise the chances of bricking my homesync. I've tried to follow the instructions on how to root my device to no avail as the first link to the firmware is showing a page not found. Are the instructions still applicable? Will other methods work such as towel root? Thank you.
Sent from my SM-G900I using Tapatalk
Hi all I have successfully rooted the device I wish I could install an updated OS or Rom on the device has anyone succeeded? Thanks.
Sent from my SM-G900I using XDA-Developers mobile app
Hi all I'm on a rooted Samsung home sync on the 4.2.2 Android. Is there any way to update the os so I can make it compatible with Kodi 17?
Thanks.
Sent from my SM-G900I using Tapatalk

Cello T1144 Need help with ROM

Hello,
Recently I bought a tablet Cello T1144 v2 through ebay and it does not work properly. I can not connect to a wireless network. I try to turn the wireless settings on and see how the slide moves to "ON" and immediately turns "OFF". Also its sometimes reboots randomly. Before I decide that this is hardware issue, I want to reinstall Android, but I cant find ROM for this tablet.
I tried to contact Cello support and asked, but no luck -- they only said that I can send them tablet and they will reinstall it for charge. But it is very non economical for me. Maybe somebody had this tablet or can provide some useful links where I can find ROM? I would be grateful for any information about ROM for this tablet

Amazfit Pace / Wifi problem on the phone

Hi everyone,
I have a problem with my watch "Amazfit Pace".
My phone is a Nexus 6P and I use the application "Amazfit Watch"
When I turn off the watch, the wifi on the phone become extremely slow.
The problem is fixed if I turn off the bluetooth on the phone (but I need the bluetooth for other devices, so that's not a solution).
Maybe the application is always searching for the watch and disturbe the wifi on the phone ?
I'm trying to find a solution with Amazfit support, but they tell me not to repeat the problem.
Thanks for your help.
Settings>Apps>Amazfit watch app>Change system settings off
Check there, I had problems with BT turning on all the time and I had to turn off there, so it turns on only when I open application.
"When I turn off the watch, the wifi on the phone become extremely slow."
i don't get it
the watch doesn't connect directly (through wifi) with the phone , the bt is for that
the watch connects (through wifi) with your router and need the wifi for the update only (i think)
are you sure that your router is "ok" ?
do you have the same problem on different wifi / router ?
Thank you for your response.
I know the watch connects in bluetooth.
But when the connection is not made (for example the watch is off or I don't have it with me), it is the wifi used by my phone that works very badly.
Everything goes back to normal if I turn off the Bluetooth or uninstall the Amazfit application.
I haven't been able to test with another router yet, but all my devices are working properly with it.
Did you tried to do what I wrote you? Try that, force stop Amazfit app and hope on the best.
droidhd said:
Did you tried to do what I wrote you? Try that, force stop Amazfit app and hope on the best.
Click to expand...
Click to collapse
Thanks for your help, but it doesn't work any better.
Because of a battery problem, Google has just changed my Nexus 6P by this one which is a reconditioned one, and I wonder if it doesn't have a problem.
What bothers me is that otherwise everything works perfectly.
I didn't test the watch with my old Nexus 6P, too bad, it went back to Google...
Yeah I got the same problem!
The amazfit app has a very aggressive policy for bluetooth pooling. The wifi/ble are places on a single chip in our phones and they're sharing the same rf antenna. That's why it probably slows down wifi.
I have a xiaomi phone btw.
i have the same problem, i write to amazfit support and repply : "you are the firts person with this problem".
i have problem with samsung a3 , a5 and S7
with others phone do not have problem at all
any ideas?
Thank you for your answers.
I am reassured to see that I am not the only one concerned.
I have submitted the problem to the Amazfit support.
Hi, is there any news about this problem? Cause i have a same thing, then I turning on an airplane mode on the wach Wi-Fi is going down...
Hi,
I am still in discussions with Amazfit support, no solution yet. I just sent them the app logs.
I think everyone who has the problem should report it to them, so maybe it will solve the problem more quickly.
Hello, I have exactly the same problem, any news from Huami?
Thank you very much
I am still in discussions with the support, but they don't find the solution.
I encourage everyone involved to bring the problem to their attention as well, that may help to solve the problem.
support.amazfit.com => Submit a request
You can quote my ticket number: 22185
I reported it directly to the development lead and team and we'll keep you posted on what we find. Thanks.
netzkobold said:
I reported it directly to the development lead and team and we'll keep you posted on what we find. Thanks.
Click to expand...
Click to collapse
this is what they just told me:
"Hello Joan,
Thank you for the reply. We are apologize for the trouble.
Our tech support have already looked into this issue, and they said there is no problem with the app. Could you please wait for the next update of the app to see if the issue can be solved? Thank you so much for your cooperation!
Should you have any further questions, please feel free to let us know. Cheers and have an excellent day!
Sincerely,
Seven | Amazfit Support"
Just had a month of banging my head over this strange behaviour. Even called ISP support to come check it, because sometimes it would even crash my router. Always at around 23h until about 7h the wifi would be like a crawl. Today I really took the matters into my hands and made some tests with network analyzers on the phone and so then began uninstalling apps from more recent to older. As soon as Amazfit watch app went away bang! everything began working, even a movie that had tried to start on chromecast and was stuck for more than 30min started playing out of nowhere.
Then tried to install it back again and issue started again even though it was disconnected from the phone. My first thought was that crazy chinese had put some creepy code at would start doing something creepy at night. Then I remembered that I had auto airplane mode from 23h to 7h! This is crazy! Airplane mode is useless this way.!
I'm going to open a ticket also. Not sure if this happens with every phone, mine is quite old. Sony Xperia Z3, could be only old chipsets, but could also be people just don't know whats going on and blame other things, because it is a really strange behaviour.
I just received a reply from Amazfit Support:
"Our developer team are working on this issue. Hope this will be optimized in the near future, but no dates have been set yet.
Could you please reset your router to 5G dual band to have a try? Thank you for your patience and understanding!"
So they are aware and trying to figure out what to do. I believe the workaround will work, because bluetooth is also 2,4Ghz and that might be the issue, but have to try later at home.
Wifi problems
Same problem here. WIFI on smartphone goes down when watch is disconnected (airplane mode, turned off, away from phone, etc). Reported to amazfit support. Big bug!
Bad news from Amazfit support, they blame the phone, and their only solution is "try on another phone":
Seven (Amazfit)
Nov 21, 01:18 PST
Hello there,
Thank you for your email. We are very sorry about the inconvenience.
Our developer team argued that such issue maybe caused by certain mobile phones. Could you please try another phone to have a try? Thank you for your understanding!
Should you have any further questions, please feel free to let us know. Thank you and have a nice day!
Sincerely,
Seven | Amazfit Support
I've got the same issue and just wrote a ticket through the app with screenshots from a speedtest app.
i've got an oneplus 3t with android 8.0.0
Wifi speed usually is 50 Mbit/s. If the watch is disconnected it goes down to about 5 Mbit/s. I can reproduce this behavior everytime I want to, so it's caused by the app.

Junsun e23 Dialer problem

Hello if wrong place i am soo sorry. I have a car navigation Junsun E27 i adapt this for my car. Now i have 3 problem;
1. this tablet have sim card can use mobile data and can send sms but can not call or can not take call how i can make, i download soo many different dialler application but can not work any.
2. this tablet camera if pluged in tablet restarting in every half hour or 1 hour, when i take out camera working goodly no restart. But camera is working goodly no problem.
3. and i using auido speaker direct from this tablet mainboard. I can not find aux out on this main board how i can find or can i use aux from usb because this main board aux out using usb hub and seond camera.
I'm sorry but this really is the wrong place... This forum is not for technical support for specific apps
???
joroizin said:
I'm sorry but this really is the wrong place... This forum is not for technical support for specific apps
Click to expand...
Click to collapse
I join this forum because here have soo many person know everything about phone and android system long time i have mobile phone repair shop and i learning %50 from here what can i do İ am sure i can find my answer here but i think not yet see anyone can solve my problem....

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