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

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howardc64

Senior Member
Apr 30, 2016
424
113
boolaga said:
I came to the same conclusion regarding the screen driver. I'll reach out to vendor to see if they can help me out, though they haven't been too helpful so far. I may just switch to a different unit.

Thanks!
Click to expand...
Click to collapse

Maybe this is how you extract parts of firmware. It uses shell scripts, looks like runs on ubuntu linux (I tried on my macos and found missing ubuntu commands)

forum.xda-developers.com

XYAUTO Firmware Workbench

XYAUTO-Firmware-Workbench Scripts intended to mount the XY-AUTO Firmware, make modifications and reassemble the firmware They can retrieve the firmware from specified location and after modification, they can put the firmware into another...
forum.xda-developers.com forum.xda-developers.com
 
H

howardc64

Senior Member
Apr 30, 2016
424
113
DkjebberZ said:
Did you use google maps as the navi?
Because i am having issues getting i to show in the smaller window.
I keep getting the message "app doesnt support running in second screen", am i missing a option to check/uncheck to get maps to show in either ui17 or ui20?
Click to expand...
Click to collapse

I never encountered such error. Maybe your google maps is out of date somehow?

UI defaults to google maps for UI17/UI20. I use Sygic since it provides offline navigation (I don't have LTE)

map app is changeable on UI17/UI20 map window. See 2nd link at link below

YT5760B_AC8259 - Misc

Replacing Default Launcher WARNING Note xyauto launchers was resolution specific and gradually supporting more resolutions so be sure to research and locate the right one. Wrong will can cause blank screen with the wrong display driver. HU will boot but screen will be blank to make it useless. Read
sites.google.com sites.google.com
 
Last edited:
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DkjebberZ

DkjebberZ

Member
Sep 17, 2022
5
0
howardc64 said:
I never encountered such error. Maybe your google maps is out of date somehow?

UI defaults to google maps for UI17/UI20. I use Sygic since it provides offline navigation (I don't have LTE)

map app is changeable on UI17/UI20 map window. See 2nd link at link below

YT5760B_AC8259 - Misc

Replacing Default Launcher WARNING Note xyauto launchers was resolution specific and gradually supporting more resolutions so be sure to research and locate the right one. Wrong will can cause blank screen with the wrong display driver. HU will boot but screen will be blank to make it useless. Read
sites.google.com sites.google.com
Click to expand...
Click to collapse
I checked via store the other day, and it seems fully updated, maybe i just have to use another app.
Thank you very much for the quick response 🙂
 
sky_frog

sky_frog

New member
Oct 17, 2022
3
8
Hi all. does anyone have a dump or firmware 1.70-1.73.1 for 6-8gb HU
It should has such dsp interface
screenshot_20220425-181644-png.5598103
 
H

hyz_123

Member
Feb 25, 2022
25
18
DkjebberZ said:
Did you use google maps as the navi?
Because i am having issues getting i to show in the smaller window.
I keep getting the message "app doesnt support running in second screen", am i missing a option to check/uncheck to get maps to show in either ui17 or ui20?
Click to expand...
Click to collapse
Looks like we have to update the firmware to newest release of 1.73.7 first.


I am currently running the first 1.73.7 version (17 August release) with older release of UI17.
it was working fine. today I have updated to the UI17/UI20, both UI gave me the same error message as yours.
I am guessing these new UI updates have to work with the new 1.73.7 firmware release.

now I am downloading the new 1.73.7 firmware, will let you know if this is the case or not.
 
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hyz_123

Member
Feb 25, 2022
25
18
I have found out that the new release of UI17/UI20 must running with latest 1.73.7 firmware (13 Oct 2022).
otherwise, you may get error message" the app does not support in second screen".

FYI: it didn't remove any user data when updating to latest 1.73.7 firmware (13 Oct 2022), at least in my case it did not.

if you want to use new release of UI17/UI20, looks like updating to latest 1.73.7 firmware (13 Oct 2022) is a must.
 
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H

howardc64

Senior Member
Apr 30, 2016
424
113
hyz_123 said:
I have found out that the new release of UI17/UI20 must running with latest 1.73.7 firmware (13 Oct 2022).
otherwise, you may get error message" the app does not support in second screen".
Click to expand...
Click to collapse

Great info! UI17/UI20 posting time stamp is same date or later than latest 1.73.7. Perhaps this was the best indicator of potential dependency. Updated website to share this info

YT5760B_AC8259 - Misc

Replacing Default Launcher WARNING Note xyauto launchers was resolution specific and gradually supporting more resolutions so be sure to research and locate the right one. Wrong will can cause blank screen with the wrong display driver. HU will boot but screen will be blank to make it useless. Read
sites.google.com sites.google.com

hyz_123 said:
FYI: it didn't remove any user data when updating to latest 1.73.7 firmware (13 Oct 2022), at least in my case it did not.
Click to expand...
Click to collapse

Interesting. My 13 Oct 22 1.73.7 wiped user data on update which wipes out any downloaded apps, updated apps, and data for all apps.

Wonder what is the difference? In the past, xyauto sometimes update firmware after initial posting with same name. Only way to know is from time stamp. FW is still 13 Oct 22 now so not sure this is the cause.

hyz_123 said:
if you want to use new release of UI17/UI20, looks like updating to latest 1.73.7 firmware (13 Oct 2022) is a must.
Click to expand...
Click to collapse
 
Last edited:
Milad Jarjees

Milad Jarjees

Member
Sep 29, 2022
12
0
Hello everyone. i have golf sportsvan 2014 with yt5760b my usb and aux at the specialist store no longer works does anyone have the same problem Exactly like in the photo
32651e677258c515aa1f37aafb31be5b98609fd6.jpg
 
jaimesilva

jaimesilva

Senior Member
Apr 28, 2010
102
15
Medellin
jaimealsilva.com
Xiaomi Mi Note 10 Lite
hyz_123 said:
I have found out that the new release of UI17/UI20 must running with latest 1.73.7 firmware (13 Oct 2022).
otherwise, you may get error message" the app does not support in second screen".

FYI: it didn't remove any user data when updating to latest 1.73.7 firmware (13 Oct 2022), at least in my case it did not.

if you want to use new release of UI17/UI20, looks like updating to latest 1.73.7 firmware (13 Oct 2022) is a must.
Click to expand...
Click to collapse
Judging by file path it seems like latest firmware has UI20 (three-split screen) included. Am I right? or UI20 must be applied after upgrading firmware anyway? Or latest firmware has UI20 and upgrade is only needed to get the latest version?
2022-10-25_10-17.png

Other than UI changes is there any other improvement worth upgrading firmware? I'm currently using J1.72 and do not have CAN device connected.

IMG_20221019_124805.jpg
 
Milad Jarjees

Milad Jarjees

Member
Sep 29, 2022
12
0
jaimesilva said:
ty5760bJudging by file path it seems like latest firmware has UI20 (three-split screen) included. Am I right? or UI20 must be applied after upgrading firmware anyway? Or latest firmware has UI20 and upgrade is only needed to get the latest version?
View attachment 5743307
Other than UI changes is there any other improvement worth upgrading firmware? I'm currently using J1.72 and do not have CAN device connected.

View attachment 5743309
Click to expand...
Click to collapse

did you install canbus correctly?
This video shows how to install correctly
 
H

howardc64

Senior Member
Apr 30, 2016
424
113
jaimesilva said:
Judging by file path it seems like latest firmware has UI20 (three-split screen) included. Am I right? or UI20 must be applied after upgrading firmware anyway? Or latest firmware has UI20 and upgrade is only needed to get the latest version?
View attachment 5743307
Click to expand...
Click to collapse

Despite the file path says three split screen. After install, old xyauto launcher shows up and I didn't search too much how anyway in the new firmware to enable the split screen launcher. Factory setting menu has a UI choice that didn't do anything previously. Perhaps it does something now? Didn't try it.

UI17/UI20 patches on xyauto server have 2 dependencies

1. latest Oct-13 fw to work correctly.esolution dependent mean
2. correct resolution HUs. Wrong resolution will brick with blank screen.

YT5760B_AC8259 - Misc

Replacing Default Launcher WARNING Note xyauto launchers was resolution specific and gradually supporting more resolutions so be sure to research and locate the right one. Wrong will can cause blank screen with the wrong display driver. HU will boot but screen will be blank to make it useless. Read
sites.google.com sites.google.com

jaimesilva said:
Other than UI changes is there any other improvement worth upgrading firmware? I'm currently using J1.72 and do not have CAN device connected.
Click to expand...
Click to collapse

Haven't seen any significant improvement in awhile. If you do upgrade, note new firmware likely will wipe user data (Read NOTE 3)

sites.google.com

YT5760B_AC8259 - HW FW

Currently Installed Firmware Settings->System Info will show currently installed firmware YT5760B_AC8259 - Settings (google.com) 1.XX.Y is the currently installed release CANBUS shows the installed CANBUS version MCU shows installed MCU version Factory installed firmware seems to have J preceding
sites.google.com sites.google.com

jaimesilva said:
View attachment 5743309
Click to expand...
Click to collapse
 
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H

howardc64

Senior Member
Apr 30, 2016
424
113
Milad Jarjees said:
Hello everyone. i have golf sportsvan 2014 with yt5760b my usb and aux at the specialist store no longer works does anyone have the same problem Exactly like in the photoView attachment 5743289
Click to expand...
Click to collapse

These aftermarket HUs have dedicated connections in the rear for 2 USB ports (look in your HU's menu to see). Unless the wiring hardness adapter routed the old USB to the HU's USB connection, it won't work.

Here is your original HU's connection. Was the C connector plugged into anything to the aftermarket HU?

Volkswagen E-Golf (2014-2016) Discover Pro Head Unit pinout diagram @ pinoutguide.com

On aux port, not sure where that goes in the aftermarket HU. Not too useful feature anymore so I think no one bother connecting it.
 
Milad Jarjees

Milad Jarjees

Member
Sep 29, 2022
12
0
howardc64 said:
These aftermarket HUs have dedicated connections in the rear for 2 USB ports (look in your HU's menu to see). Unless the wiring hardness adapter routed the old USB to the HU's USB connection, it won't work.

Here is your original HU's connection. Was the C connector plugged into anything to the aftermarket HU?

Volkswagen E-Golf (2014-2016) Discover Pro Head Unit pinout diagram @ pinoutguide.com

On aux port, not sure where that goes in the aftermarket HU. Not too useful feature anymore so I think no one bother connecting it.
Click to expand...
Click to collapse
Thank you for your reply I connected two usb it is working normal but the original one with aux doesn't work it has other connection but i don't know which adapter fits
 
H

howardc64

Senior Member
Apr 30, 2016
424
113
Milad Jarjees said:
Thank you for your reply I connected two usb it is working normal but the original one with aux doesn't work it has other connection but i don't know which adapter fits
Click to expand...
Click to collapse

Most likely not connected thus not working. If you really want them to work, need to splice in the car's USB port to one of the aftermarket HU's USB ports. I don't think HU has a 3rd USB to tap into. As for aux, probably not worth trying to get it working unless really want to for some reason.
 
H

hyz_123

Member
Feb 25, 2022
25
18
Help needed!
Can anybody provide zlink 3.9.27 apk from the 1.73.7 firmware?
I have installed new version of zlink 3.9.43 from xygala.com, now all the music from Carplay are somewhat distorted.

Looks like I need to go back to the original zlink 3.9.27 version.

Any help would be greatly appreciated
 
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H

howardc64

Senior Member
Apr 30, 2016
424
113
hyz_123 said:
Help needed!
Can anybody provide zlink 3.9.27 apk from the 1.73.7 firmware?
I have installed new version of zlink 3.9.43 from xygala.com, now all the music from Carplay are somewhat distorted.

Looks like I need to go back to the original zlink 3.9.27 version.

Any help would be greatly appreciated
Click to expand...
Click to collapse

You might need to reinstall 1.73.7 to recover matching zlink version. Not sure anyone who knows how to extract apks still hang out on this thread.
 
H

hyz_123

Member
Feb 25, 2022
25
18
howardc64 said:
You might need to reinstall 1.73.7 to recover matching zlink version. Not sure anyone who knows how to extract apks still hang out on this thread.
Click to expand...
Click to collapse
I managed to extract all the apks from 1.73.7.
Strangely. I couldn't find zlink.apk.
There is ZlinkActivationCode.apk, which is the only apk related to zlink.

-------------------------------------------------------------

Update!
Finally found the zlink apk. it was inside the vendor.new.dat.br.
I have uploaded zlink apk here, just in case someone needs it.
I believe this is the zlink ver 3.9.27 comes from the 1.73.7 firmware.
I haven't got chance to test it on my HU (now is midnight here in Australia), will do it tomorrow.
 

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B

boolaga

Member
Oct 22, 2022
9
4
Managed to unbrick my Seicane unit. I had previously used the UI file in the 1280*720 folder and it didn't work. Since I had a 1280*720(mipi), it dawned on me that 720*1280 didn't make sense to be under the "horizontal" folder. So I downloaded UI8 from there and it worked. Sure did waste a lot of time trying to get the vendor to actually send me files. Oh well, it works. lol
 
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    H
    howardc64
    kan_ranga said:
    Referring to the DMs we exchanged, Honestly i did not notice any performance difference after i flashed 1.73.8. Also could be that i did not spend too much time before i reverted. I am happy to try again and revert back. I should have tried google maps though (which i did not). Cos that is the only thing that is slow for me in addition to Wifi which i hotspot from my phone.
    Click to expand...
    Click to collapse

    Googlemaps is slow on this HU so no way to solve this

    kan_ranga said:
    Couple things that are still open for me to understand is
    1. What files causes the bootloop when i flash 5760 on 7260. It is proven now that boot, vendor and system are not the culprits. I also used metazone and the subsequent files from 7260 stock and that bootlooped. So i suspect files before metazone (excluding boot, vendor and system) is creating the problem. I even got dtbo from stock and that bootlooped. Any views?
    Click to expand...
    Click to collapse

    No idea. I don't really know what all these different partition images are for

    kan_ranga said:
    2. I currently dont use a SIM card and I suspect the device did not come with a SIM feature - cos i dont see a phone app on stock. However when i flashed 5760 (the above method), i could see a messages and phone app integrated. I also keep getting a message that the IMEI is blank. Any fix for getting rid of this pop-up as i dont intend to use a SIM card and instead hotspot the device with my phone
    Click to expand...
    Click to collapse

    If you don't want to remove HU and see the IMEI sticker on logic board. You can patch it with any dummy IMEI # and it will stop complaining.

    kan_ranga said:
    3. I also was reading on the russian forum that 1.73.8 gives you an option to choose which DSP version you want to apply. However i could not find that after the flash. Any help there?
    Click to expand...
    Click to collapse

    Sorry, I have no knowledge here.
    View
    1
    H
    howardc64
    Updated to 5/3/23 2-4GB 1.73.8

    Not much visible changes. zlink is now zlink5

    NOTE for those on 1.73.7, its not possible to upgrade via System Info Android upgrade button. Require computer flash upgrade to 1.73.8's new partition table.

    Screenshot_20230503-172735.pngScreenshot_20230503-172753.png

    Prior Installation Failed to Boot

    My prior firmware (6-8GB 64b firmware on 2GB HU) died and wouldn't boot Android (Get Car Audio logo but no Android logo). Had TWRP installed so always failed Android boot and booted into TWRP instead. TWRP showed the Android file system was present so don't know the reason for the Android boot failure. Don't know if related to running 64b on 2GB HU.

    Computer Flashing Missing Files

    5/3/23 2-4GB 1.73.8 computer upgrade file was missing preloader* and metazone. preloader is in the ota file as usual. However, had to go back to 11/18/22 2-4G computer file to get metazone (now extracted and archived on mega)

    YT5760B_AC8259 - Brick Recovery

    Firmware Format and Installation Diagrams Here...
    sites.google.com sites.google.com
    View
    1
    H
    howardc64
    jaimesilva said:
    I found that solution in this post #1325:

    Anyway I found the solution to the problem, both knobs were inverted. In Factory Settings is a section called "Encoder Settings" where you can change knobs behaviour (actually they are encoders). All I have to do was change settings in both from "positive direction" to "negative direction" and now they work as I want: on the left one clockwise rotation increases volume, counterclockwise decreases volume and on the right one clockwise moves tuner up and counterclockwise moves tuner down.
    Click to expand...
    Click to collapse

    Great, updated the computer flash guide ( post #1399 ) and website to note these potential UI issues + fixes :)

    YT5760B_AC8259 - Brick Recovery

    Firmware Format and Installation Diagrams Here...
    sites.google.com sites.google.com
    View
    1
    H
    howardc64
    donskie0five said:
    Yes I already took a photo of IMEI. I think that's my problem I format using that option and erase some of the important files with in the HU. In manual format there is an option for EMMC (Boot1,Boot2, USER). May I will find some fix for it. or if anyone can extract there files so that I can use to try to write memory back like in this video :

    Click to expand...
    Click to collapse

    @2:15 in the video, his thumb is over the 2x DDR memory. Its under the shield in your HU.

    I recently researched a dead eMMC for HiSense Android TV. eMMC is not simple flash chip. It has many features
    • Handles NAND Flash wear leveling
    • Provide multiple partitions (boot/user)
    • Access security to boot
    • Has CPU inside
    Here is eMMC spec by JEDEC (memory standards group. Need to make free account to access)

    eMMC4.5 (jedec.org)

    I'm not certain of the following but after studying HiSense TV Android eMMC, I think the following is boot process for all Android with boot code stored in eMMC
    • main SOC request code from specific eMMC location (boot1?)
    • boot1 code (maybe also boot2? I don't know) start running basic system (not yet HU firmware)
    • basic system has more sophisticated communication capabilities to/from USB/PC to flash remainder of the firmware
    • I think boot1 code can be secured
    When we do format all and flash computer pkg firmware. I think we are not touching boot1 at all. If boot1 is lost, I think typical computer flashing process doesn't work (HU has no basic system to talk to PC). Need to first get the correct boot1 (has to match the HW) using the memory writing solution outlined in the video. So a key question is

    Where did you get the boot1? And does it match your HW?

    Since YT5760B has so many variations. Maybe there is slightly different boot1 for slightly different HW versions. Its probably desirable to get boot1 from matching HW version #s on your board.

    In HiSense TV, writing boot1 required security access and need to contact SOC manufacturer (MSTAR who is also acquired by MTK just like AutoChips). I guess this is not necessary for AutoChips from the youtube video. But it is still necessary to get correct boot1 and the flash location. I don't know any details here.

    I don't have any experience here. Just sharing some basic knowledge of Android boot process.
    View
    1
    H
    howardc64
    vipinholland said:
    Hello,

    I have bought a Android radio and it had the builtin 360 app. But it is an other app than a friend of my have on his device. It also says that I have to register on wechat but can not figuren it out how to do this.

    Is it possible to flash a different rom for this device?

    I don't think it is really Android 12 but I can not see the system info of Android because this menu is not available.

    Ram 6 gb
    Click to expand...
    Click to collapse

    You have different HU firmware than this thread. See Boison B200 under "Other AC8259HUs" tab

    YT5760B_AC8259 - HW FW

    Currently Installed Firmware Settings->System...
    sites.google.com sites.google.com

    I'm not sure how robust is the B200 forums on firmware upgrades. Its easy to brick these HUs so make sure you read and confirm clear robust B200 upgrade procedure before attempting. This forum's HU (YT5670B) has firmware released on file server by firmware developer. However, many HUs owners post firmware they received from vendor in forums.

    On 360 app on our HU, you buy HU version with this feature, then the vendor preinstall 360 app (roundadas) license. Yous says not activated so maybe you didn't purchase this feature?
    View
  • 4
    mantecon1
    mantecon1
    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
    View
    3
    H
    howardc64
    Late Feb release of an xyauto UI is pretty good. Has maps (I use with google maps app with offline maps), radio, HU music player, a fixed app launch icon pane (left vertical) and a user changeable app launch icon pane (lower bottom) all on one screen.

    Generally quite nice. google maps has voice input search, auto dark mode at night while navigating (none navigation mode unfortunately stays in day mode) map will be always north up while driving without navigation route.

    Screenshot_20220429-113525.pngScreenshot_20220502-172333.pngScreenshot_20220502-212853.png

    patch file link Note this seems to be for 1024x600 screen only. Didn't see it in other resolution folders.

    Mode switching is a bit mysterious (I have a steering wheel button programmed to switch modes). In the old default UI, mode switch with switch between currently running apps. Seems to do nothing on this UI while being displayed.

    This launcher provide everything I use so no need to fiddle with the HU much. Just power on the car and drive. The useful features are

    - FM radio (wife listens to this and its her car)

    - Maps always displayed and track your position smoothly (Seen other launchers with map. Position only update every second or so, very jerky display). Google maps fixed to north up unless navigating. Voice input destination via mic icon on google maps search bar. Maps always in bright color mode (quite bright at night but area is not entire screen) Navigation will auto change to dark mode at night.

    - BT works if setup to auto pair. Incoming calls pops up on screen. Can voice command out going calls with iPhone easily. Just say "siri call xxx" with iPhone mic able to hear you. iPhone looks up your contact and dials while connecting to HU's BT for speaker/mic sound.

    - Music player will play all music files in the system/USB stick.

    - Color choices are nice. Colorful but background is dim for night time use. Only issue is google maps none navigation mode display stays bright. Other nav software might handle this better.

    - Google maps generally likes portrait displays like a phone. This horizontal smaller window sometimes hide the next driving intersection change behind the green direction box on top. Not too big of a problem.

    - Left column icons are not changeable. Bottom row is user changeable.
    View
    3
    P
    piotrmocko
    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.
    View
    3
    H
    hyz_123
    howardc64 said:
    You might need to reinstall 1.73.7 to recover matching zlink version. Not sure anyone who knows how to extract apks still hang out on this thread.
    Click to expand...
    Click to collapse
    I managed to extract all the apks from 1.73.7.
    Strangely. I couldn't find zlink.apk.
    There is ZlinkActivationCode.apk, which is the only apk related to zlink.

    -------------------------------------------------------------

    Update!
    Finally found the zlink apk. it was inside the vendor.new.dat.br.
    I have uploaded zlink apk here, just in case someone needs it.
    I believe this is the zlink ver 3.9.27 comes from the 1.73.7 firmware.
    I haven't got chance to test it on my HU (now is midnight here in Australia), will do it tomorrow.
    View
    3
    H
    howardc64
    piotrmocko said:
    Is it wiping user data as 1.73.3?
    Click to expand...
    Click to collapse

    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 :)
    View

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