AC8257 CPU Based unit's problems & questions - Couldn't find any info about it

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howardc64

Senior Member
Apr 30, 2016
218
55
The home screen is the stock I received the unit with.
I also checked the power options, tried the user and the sleep mode, no difference.
I connected the permanent 12v and also the switched one too.
When I turn the ignition, I have to wait about 20 sec and if I then unplug and plug back the can is box then it wakes up. So there might be time for the boot up. But it doesn't forget the settings....
The can is connected, I can debug the can logs. Sees when door opens, steering keys, light on...
I was thinking about if the device should work even without the can box? If so, how?
Thank you for any suggestions

I don't have CANBUS unit and have been researching how to connect it. At least on my car (2011 Prius) it didn't seem to be an "add-on". Seems to have some harness integration but I am not sure. But yes, next step seems to be if able to wire it up without CANBUS and see how it behaves.

Sounds like you did the wiring yourself rather than a premade adapter harness? Mine came with an adapter harness so didn't have to figure out which was perm or switched 12v. Just car original plug into adapter harness into HU.

Do you think the when the screen is blank, HU is asleep or just not turning on the screen? Perhaps connect bluetooth to phone and see if also disconnects when screen stays blank.
 

oisiss

Member
Jan 20, 2014
13
0
The home screen is the stock I received the unit with.
I also checked the power options, tried the user and the sleep mode, no difference.
I connected the permanent 12v and also the switched one too.
When I turn the ignition, I have to wait about 20 sec and if I then unplug and plug back the can is box then it wakes up. So there might be time for the boot up. But it doesn't forget the settings....
The can is connected, I can debug the can logs. Sees when door opens, steering keys, light on...
I was thinking about if the device should work even without the can box? If so, how?
Thank you for any suggestions
This is where i bought the unit: https://www.aliexpress.com/item/1005004841192288.html

I can check the Aida64 when i get back to home in 10 days, i am also not sure if this is a real or fake Android 11.

What im also thinking about what if the wiring changed the battery+ and ACC+, so when i shut down the car it cuts the battery+ so the unit dies. it works only for a while because the internal capacitor survives a few seconds only. And im also thinking about what it I just connect the battery 12V to the radios' ACC and B+ input, and control the sleep mode in the menu you mentioned.

When i unplug and plug back the CANBOX the radio turns on in about 3 seconds. so it seems it was sleeping and wakes up from that. i dont know how, but i saw it booting 1-2 times only, and that takes about 40 seconds.

is there a CANBUS signal that wakes up the radio from sleep? so the CANBOX is always on, listening?
Does the CANBOX work even if its cables are switched? i mean i just connected them and it started to work immediately, but what would happen if they are switched?
 

howardc64

Senior Member
Apr 30, 2016
218
55
This is where i bought the unit: https://www.aliexpress.com/item/1005004841192288.html

I can check the Aida64 when i get back to home in 10 days, i am also not sure if this is a real or fake Android 11.

Ok, some UI looks like mine (radio, DSP, ugly launcher etc...)

Says Android 11/API level 29 (google list API level 29 as Android 10)

What im also thinking about what if the wiring changed the battery+ and ACC+, so when i shut down the car it cuts the battery+ so the unit dies. it works only for a while because the internal capacitor survives a few seconds only. And im also thinking about what it I just connect the battery 12V to the radios' ACC and B+ input, and control the sleep mode in the menu you mentioned.

When i unplug and plug back the CANBOX the radio turns on in about 3 seconds. so it seems it was sleeping and wakes up from that. i dont know how, but i saw it booting 1-2 times only, and that takes about 40 seconds.

Yes, 3s = wake up. Boot takes longer like multiple 10s of seconds.
 

nguyenthang68

Member
Nov 11, 2022
5
0

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quletadik23

Member
Dec 7, 2011
44
1
Anyone know or have a specific youtube version that is optimized for our android? Its so laggy when scrolling or browsing videos. But it plays smooth.

4gb octa variant
 
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ena816

New member
Jul 11, 2014
3
0
Hi there, im pretty confused as to the firmware and the latest updates. There seems to he few models with different variants, i attached a screenshot from my device and hope someone would guide me to the right direction and tell me where to download the latest firmware and how to install it.
Thanks in advanceView attachment 5697147
Hi, I have the same head unit, did you get where can download the new firmware? Can you connect to Android Auto wirelessly with Android phone? Mine can't connect it wirelessly, don't know what's wrong. The seller is very helpless. Thanks.
 

quletadik23

Member
Dec 7, 2011
44
1
Do we have a valet/service mode ? Like when our car is being serviced by a mechanic, so that they can’t access the head unit ?
 

howardc64

Senior Member
Apr 30, 2016
218
55
updated 11/19/22 1.73.7 + 11/18/22 UI20 for 1024x600 2GB/32GB YT-5760B

  • Did not user data wipe over my prior firmware 11/4/22 1.73.7
  • Audio volume back to normal loudness. No longer need to press a bunch of volume +. Decided to keep this upgrade
  • I did get a crash + user data wipe during rapid power down/up sequence.
Screenshot_20221120-214358.pngScreenshot_20221120-214413.pngScreenshot_20221120-214328.png
 
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nklees

Member
Aug 31, 2022
8
1
Hi everyone. Does anyone has a problem when using the device alternating more than one Bluetooth Phone? In my case it keeps like connecting with both units but need to shut down bluetooth to get it connected. Even when the other phone is not present. Does not happen if it is just one phone. Any Ideas? Thanks
 

0mfgroflmao

Senior Member
Sep 11, 2010
98
15
Hello. I bricked my Seicane unit (YT5760B, 4GB, 1280*720 mipi) trying to update to UI20. I was able to update the firmware properly but I failed miserably with the UI20 file. Now it's just stuck on a black screen.

I attempted to put the firmware ota file (gongban_YT5760B_5750B-hwok-ota-v1.73.7.zip) with the XYAUTO_UPDATE.bin file in the root of a USB file and wasn't able to get into any sort of recovery screen. I held the RST button down and swiped left and right along the top, middle, everywhere until my fingerprint disappeared. Any advice?

Thanks!

I also have a YT5760B 4GB 1280x720 mipi, can you confirm where you got the 1.73.7 firmware? The one on the xyauto site has a slightly different filename? (gongban_YT5760B_splitwindow-hw-ota-v1.73.7.zip)
 

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boolaga

Member
Oct 22, 2022
7
4
I also have a YT5760B 4GB 1280x720 mipi, can you confirm where you got the 1.73.7 firmware? The one on the xyauto site has a slightly different filename? (gongban_YT5760B_splitwindow-hw-ota-v1.73.7.zip)
Firmware is whatever the generic 5760B release is. Resolution should only matter if you're updating the UI to UI20 too. Please refer to the site howardc64 has taken the effort to maintain as it has all the information you need there.
 

howardc64

Senior Member
Apr 30, 2016
218
55
I also have a YT5760B 4GB 1280x720 mipi, can you confirm where you got the 1.73.7 firmware? The one on the xyauto site has a slightly different filename? (gongban_YT5760B_splitwindow-hw-ota-v1.73.7.zip)

Per @boolaga 1024x600 and 1280x720mipi (both horizontal display) share same firmware. Latest file link here


Note xyauto quality assurance isn't great so I've not yet see anyone post 1280x720mipi success on 11/19/22 1.73.3 update. If you don't want risk (probably very low), might wait for someone to confirm success.

Your HU also says H560B instead of YT5670B. Never seen that before. Don't know if that is some kind of different hardware configuration which then requires different firmware. Proceed with caution.
 

0mfgroflmao

Senior Member
Sep 11, 2010
98
15
Per @boolaga 1024x600 and 1280x720mipi (both horizontal display) share same firmware. Latest file link here


Note xyauto quality assurance isn't great so I've not yet see anyone post 1280x720mipi success on 11/19/22 1.73.3 update. If you don't want risk (probably very low), might wait for someone to confirm success.

Your HU also says H560B instead of YT5670B. Never seen that before. Don't know if that is some kind of different hardware configuration which then requires different firmware. Proceed with caution.

Couple more screen caps from the unit.
 

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howardc64

Senior Member
Apr 30, 2016
218
55
Couple more screen caps from the unit.

Here is my Aida64 in post #1058, looks same/similar to yours. So I guess you have YT5760B 1280x720mipi, likely safe to do an update of the 11/19/22 1.73.7 common firmware for 1024x600 and 1280x720.

But if you don't have any need (not much new features in the new firmware) maybe not worth taking any risk.
 

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  • 2
    updated 11/19/22 1.73.7 + 11/18/22 UI20 for 1024x600 2GB/32GB YT-5760B

    • Did not user data wipe over my prior firmware 11/4/22 1.73.7
    • Audio volume back to normal loudness. No longer need to press a bunch of volume +. Decided to keep this upgrade
    • I did get a crash + user data wipe during rapid power down/up sequence.
    Screenshot_20221120-214358.pngScreenshot_20221120-214413.pngScreenshot_20221120-214328.png
    2
    Hey folks, quick question here. Has any of you experienced a self wipe from your head units? Mine just did that, lost all apps, zlink was not activated until I got wifi to the radio. Pretty strange event. There was some solar wind activity a few weeks ago, that can mess up electronics, but I don't know in my case no particular electromagnetic things happening in my garage, lol. Let me know about your thoughts, maybe is common with these units. Thanks
    Yes it happened to me 4 or 5 times when starting the car (see post #1124), since I changed power mode from "direct shutdown" to "user mode" the problem dissapeared.
    2
    Thanks brother, do you have by any chance the engineering password available, I can't seem to find it this morning
    Check Howardc64's website, there is a lot of info there! The passwords are here:

    1
    Yeah. Thinking of that. But I saw someone posted on youtube that he can display voltage on taskbar without obd. I hope we can do that.
    I have a friend with a chinese HU installed in his VW golf, It is conected to the car via CANBUS (not obd) and he can see battery voltage, water temp., rpm, fuel level, odometer and more in the screen.

    So it can be done, but is not easy, I dont know if canbus comunication in cars are standard between car manufacturers or if a canbus analyzer is needed, moreover, we need anyone who knows to develop android apps...
    1
    Guys, is it mandatory to activate the DIRECT SHUTDOWN MODE? Will my battery be ok with USER MODE?
    Hi.

    I think that most of the people uses "user mode", I have been using "direct shut down mode" and I have some problems with the HU because it wipes all user data.

    @howardc64 Has tested how much curret it draws when sleeping and seems to be quite low
  • 3
    Is it wiping user data as 1.73.3?

    Just installed 1.73.6 on 5760B 1024*600, didn't wipe user data.

    Actually, I forgot and left 1.73.3 (don't recall if it was 5/24 or 7/25 version) on the USB stick w/1.73.6 and 1.73.3 got installed which wiped my user data. But then I installed 1.73.6 over this without wiping user data.

    Biggest change I notice is just the 2x boot up pop sound is gone. So maybe xyauto have more orderly sound hardware initialization now :)
    3
    i did it !!! i did it !!! my radio works!! to much people with this problem and i found the solution trying bored files from xygala, i was bored, i downloaded all the files in that drive 1 by 1.. seems it’s a driver for lg screens, i will edit this to make a tutorial, but i need help to do it, my english is not so good
    3
    I have recorder a video with the YT5760B system upgrade. It takes about 5 minutes to complete. In the attached ZIP file you can find the video.
    3
    The XYgala.com has released another newer 1.73.7 split screen firmware (release date 28 October).
    And UI20 add-on pack has also been updated, it made adding the app to main screen bit easier.
    The new firmware updated the Zlink to ver 3.9.43, which causes sound/music distortion when using Carpaly.
    At least this problem appeared on my HU.
    if you are having the same problem, you can install zlink ver 3.9.27 from my previous post.
    2
    I have updated firmware to the latest version 1.71.
    • Setting up car's clock finally works with Mazda 6 GH
    • Annoying sound in the background did not disappear
    • DSP profiles work better since 1.70

    Screenshot_20211026-084834.jpg