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

Search This thread

howardc64

Senior Member
Apr 30, 2016
246
59
Hi there!
I'm having a bit of trouble with this recently purchased new unit photo in attachment.
When I turn on the car the hot spot turns on by itself, the radio turns on by itself.
The touch screen sometimes freezes/it seems that the touch coordinates no longer match or the system freezes I don't know which of the two, and then resumes normal operation after many minutes.
I can't configure the "XINBAS" can bus module because they are written in untranslated Chinese.
It fails to connect with my fully functional blutooth ELM OBD2 module with other devices it "doesn't see it".
I've tried to contact Bosion but I'm getting emails with automatic replies that don't address my issues.
Is there any update I can do?
Thanks for any response

Bosion is completely different firmware from this thread. See Other AC8259 HUs tab here for more reference

YT5760B_AC8259 - HW FW (google.com)
 
  • Like
Reactions: apacatia

drstoms

Senior Member
Feb 14, 2016
53
2
Hi, could you provide me with the firmware for the spflash tool for 8259. My eunavi 6/128 radio had a bootloop, the 8259upd and bin files did not even work on shorting the key 1 key 2 cable to ground, so I decided to flash the firmware from the Xygal website, choosing the 5760b 8227 version horizontal screen under 6 or 8gb ram after successful flashing in SpflashTool the radio has only a black screen slightly illuminated. My radio is on 8259 not on 8227 and probably because someone misled me somewhere that 8227 and 8259 are the same terqz I know that 8259 is the successor and the only one the form of the files I have access to is 2 bin and upd files under the pen drive so it will not save the radio. Help as much as you can with the system under SpflashTool so that I can finally revive this radio, thank you in advance
 

drstoms

Senior Member
Feb 14, 2016
53
2
Hi, I have a request because I am also stuck with this problem, i.e. on a clean pen drive, I put two XYAUTO_UPDATE.bin files and a screen driver file, e.g. and how did you connect the pen drive? just turn off the unit, mount the usb disk with the driver and turn on the unit? Thanks in advance for your answer, best regards :)
 

drstoms

Senior Member
Feb 14, 2016
53
2
hello! i have read all the pages and i don’t see nothing about it.. i have a YT5760B (AC8259) 4/64 4G 360. I updated it with an incorrect file.. (768x1024 instead 1024x768) and now i have black screen. The tesla screen is now connected to my computer, i flashed a dump from here in format+download way.. and nothing, backlight only with no image.. i know where is the testpoint, but i don’t need it to flash, i saw that people here don’t know how to enter in flash mode, in our model you need to keep restart button pressed all the time, one time to shutdown and then quickly press and hold. i think i flashed a incorrect preloader file, the problem is that i have 8259, not 8257.. ? i’m little lost.. i tried so many things from here and 4pda.. can anybody help me to unbrick
please ?
Hi, I have a request because I am also stuck with this problem, i.e. on a clean pen drive, I put two XYAUTO_UPDATE.bin files and a screen driver file, e.g. and how did you connect the pen drive? just turn off the unit, mount the usb disk with the driver and turn on the unit? Thanks in advance for your answer, best regards :)
 

c-13

New member
Dec 7, 2022
2
0
Hi! Just received my radio, YT7216C 4/64. I am having trouble with Zlink. App is installed but won't show in launcher. Been messaging the seller for about a week and nothing they suggested has worked (they suggested resetting to factory setting before correcting themselves and saying to reset app permissions, so I might be SOL). Would reflashing/updating the firmware fix this? If so, which of the two 1.73.7 do I use. One has a folder with 'three-split screen' and leads to a file that has 'splitwindow' in the name. I do know if I enable under settings my device will do split screen, but not sure if this correlates to the firmware I need. Thanks.
 

Attachments

  • Screen Shot 2022-12-06 at 11.43.35 PM.png
    Screen Shot 2022-12-06 at 11.43.35 PM.png
    35 KB · Views: 59
  • IMG_0676.jpg
    IMG_0676.jpg
    3.7 MB · Views: 59

esavvas

Member
Dec 3, 2017
8
2
Hi to all! Let me first thank each and everyone participating and contributing! Awesome as always. Bought the unit recently and before tingling want to ask :

a) for units with hard buttons (VW in my case, see pic) , what are the resets buttons if needed?
b) how you determine with UI you are on?

Vendor: podofo model v4plus
Android : yt5760b
Car Audio: J1.73.7 / AC8259
Can Bus: 1.017
Mcu: 0.7
8core, 4/64, display 1024*600 (lvds NOT mipi)

Thank you!

Edit: to add vendor and model for future reference
 

Attachments

  • Screenshot 2022-12-07 133133.JPG
    Screenshot 2022-12-07 133133.JPG
    31.4 KB · Views: 25
Last edited:

Nerdgirlca

New member
Dec 7, 2022
2
0
Hi guys!
Please, does anyone have a manual or could explain how to install the cameras (I bought this unit with 4 cameras 360) on this unit? I already connected it to the vehicle, and I plugged in the unit.

All that remains is to connect a white cable from the left, right, and rear camera (which I haven't found how to do yet, because according to the seller, I have to connect with the turn signal light left - right and break wire light.). The problem is that I don't know if the all the cameras will only work if I connect theses white power cables, because...

I turn on the car, the 4 cameras appear connected, but their image is black with gray stripes! As if they try to work, but the image doesn't appear right!
I ask this because the front camera, it doesn't have this white power wire. Then, at least it would work as soon as I start the car, since it is already connected.
Well, I just wanted to use these cameras... Thanks to anyone who can help!
 

Attachments

  • 20221207_072755.jpg
    20221207_072755.jpg
    2.3 MB · Views: 42
  • -607480897-1797224869.jpg
    -607480897-1797224869.jpg
    319.1 KB · Views: 33
  • 10066664311140276819.jpg
    10066664311140276819.jpg
    329.9 KB · Views: 38
  • 20211107_221341.jpg
    20211107_221341.jpg
    2.7 MB · Views: 40
  • Screenshot_20221207-081905_Gallery.jpg
    Screenshot_20221207-081905_Gallery.jpg
    475.4 KB · Views: 39
  • 20211105_120926.jpg
    20211105_120926.jpg
    1.3 MB · Views: 34
  • 20211105_115452.jpg
    20211105_115452.jpg
    1.8 MB · Views: 35

c-13

New member
Dec 7, 2022
2
0
Hi guys!
Please, does anyone have a manual or could explain how to install the cameras (I bought this unit with 4 cameras 360) on this unit? I already connected it to the vehicle, and I plugged in the unit.

All that remains is to connect a white cable from the left, right, and rear camera (which I haven't found how to do yet, because according to the seller, I have to connect with the turn signal light left - right and break wire light.). The problem is that I don't know if the all the cameras will only work if I connect theses white power cables, because...

I turn on the car, the 4 cameras appear connected, but their image is black with gray stripes! As if they try to work, but the image doesn't appear right!
I ask this because the front camera, it doesn't have this white power wire. Then, at least it would work as soon as I start the car, since it is already connected.
Well, I just wanted to use these cameras... Thanks to anyone who can help!
Those are the trigger wires that will make your radio switch over to that camera when you go into reverse or use your turn signals. Wire up your cameras as they are in this post. If you have a stray wire at both ends of the camera cable, usually its the same signal just broken out at both ends (you can use a multimeter and check for continuity to verify). Not sure how to help with the image quality, some other info is here that might be of use. Cheers
 
Last edited:

piotrmocko

Senior Member
Dec 14, 2013
177
58
Kraków
@Nerdgirlca you need to go to the Factory Settings and change the Reverse camera settings to 360 and try different video srandards until one of them works. After each change you need to restart the device.
Screenshot_20220806-160845.jpg
I had had such a head unit (YT5760B) with 360 cameras, but I changed it to a different one (TS10) with 360 cameras too.

Those white wires are trigger wires. I recommend connecting the rear camera to the reverse light and not connecting the left and right. Otherwise you will see the image from cameras almost all the time. It is very distructing and inconvenient when you drive to an unknown city with the navigation.
 

esavvas

Member
Dec 3, 2017
8
2
Hi to all! Let me first thank each and everyone participating and contributing! Awesome as always. Bought the unit recently and before tingling want to ask :

a) for units with hard buttons (VW in my case, see pic) , what are the resets buttons if needed?
b) how you determine with UI you are on?

Android : yt5760b
Car Audio: J1.73.7 / AC8259
Can Bus: 1.017
Mcu: 0.7
8core, 4/64, display 1024*600 (lvds NOT mipi)

Thank you!

Hi, just a few more questions if someone can help. I also asked the vendor and waiting for response.

The unit came with a built in fan. In bench testing the fan is connected to the device port harness 12v voltage but does not operate when the unit is on (even after sometime). When tested directly with 12v voltage the fan operates. Is there any settings/trigger from within the settings that can triger the fan? ANy other thoughts?

The DAB app opens in benchtesting (no antenna) and says connecting but never connects or opens. Does it need a seperate antena to open as app?


Thanks again
 

esavvas

Member
Dec 3, 2017
8
2
Hi, just a few more questions if someone can help. I also asked the vendor and waiting for response.

The unit came with a built in fan. In bench testing the fan is connected to the device port harness 12v voltage but does not operate when the unit is on (even after sometime). When tested directly with 12v voltage the fan operates. Is there any settings/trigger from within the settings that can triger the fan? ANy other thoughts?

The DAB app opens in benchtesting (no antenna) and says connecting but never connects or opens. Does it need a seperate antena to open as app?


Thanks again

Have managed to answer some of my questions and adding my findings here for future reference

Fan: the build in fan is powered by the a10 12v amp lead. So to activate you need to activate amp from the pull down menu of the android screen :) See picture attached

Bootanimation: no need to root. You can use the menu from the Car Settings app. Transfer appropriate formated files to the any folder in the internal storage folder and select them from the app (a png file for the initial screen , replacing the android robot, and a bootanimation file for your car). For bootanimation, many good resources in this forum.

Reset button: the unit has too small holes on the top and was not sure if both were mics. I ended up opening the unit. The right hand side is a reset button :) You need something pretty stardy to press though, as is not the typical contact switch of other units. Picture below

Questions remaining:
a) Reverse camera. The one shipped with the unit i cannot make it to be seen from the unit. Tried both reverse and CVBS inputs, Made sure is powered correctly, etc. Maybe a bad camera. Waiting for another one and will see

b) RDS app not opening. Maybe because of no antenna. Will see in the car.

-----
Vendor: podofo model v4plus
Android : yt5760b
Car Audio: J1.73.7 / AC8259
Can Bus: 1.017
Mcu: 0.7
8core, 4/64, display 1024*600 (lvds NOT mipi)
 

Attachments

  • 319049494_6049718368424998_2822262888891023426_n.jpg
    319049494_6049718368424998_2822262888891023426_n.jpg
    814.6 KB · Views: 45
  • 318761132_5523633894430969_6643870671856792622_n.jpg
    318761132_5523633894430969_6643870671856792622_n.jpg
    565.9 KB · Views: 45

smo6_o

Member
Dec 9, 2022
8
1
hi ....

I want to ask a question ..
I have this vertical screen..
I want to update the system
Where can I find the system files link to update the screen
----------------------------------------------------------------
MY CAR LEXUS ES 350 2010 (Navigation screen)
screen is (vertical)
YT5760B_00002_V001
CAR AUDIO: J1.73.3 (AC8259)
canbus: uzheng
8g 128g
64bt
MCU1:0.7 (AC8259)
1280X800(lvds)(8bits)
audio decode: ADI
DSP: ADI-1701
HI-Res: 192kHz/32bits
 

Attachments

  • IMG_0537.jpg
    IMG_0537.jpg
    781.3 KB · Views: 20

howardc64

Senior Member
Apr 30, 2016
246
59
hi ....

I want to ask a question ..
I have this vertical screen..
I want to update the system
Where can I find the system files link to update the screen
----------------------------------------------------------------
MY CAR LEXUS ES 350 2010 (Navigation screen)
screen is (vertical)
YT5760B_00002_V001
CAR AUDIO: J1.73.3 (AC8259)
canbus: uzheng
8g 128g
64bt
MCU1:0.7 (AC8259)
1280X800(lvds)(8bits)
audio decode: ADI
DSP: ADI-1701
HI-Res: 192kHz/32bits

I don't see vertical screen 1280x800 firmware on xyauto file server. Maybe some firmware will work but unfortunately xyauto doesn't explain which one. Should avoid updating until find someone with exact same unit showing which file to update.

Note your screen shows Android 12 which differs from most of ours showing Android 10
 
Last edited:

howardc64

Senior Member
Apr 30, 2016
246
59
Questions remaining:
a) Reverse camera. The one shipped with the unit i cannot make it to be seen from the unit. Tried both reverse and CVBS inputs, Made sure is powered correctly, etc. Maybe a bad camera. Waiting for another one and will see

Only suggestion I can offer is reverse camera resolution and signal menu selection but maybe you already tried it.

 

howardc64

Senior Member
Apr 30, 2016
246
59
Hi! Just received my radio, YT7216C 4/64. I am having trouble with Zlink. App is installed but won't show in launcher. Been messaging the seller for about a week and nothing they suggested has worked (they suggested resetting to factory setting before correcting themselves and saying to reset app permissions, so I might be SOL). Would reflashing/updating the firmware fix this? If so, which of the two 1.73.7 do I use. One has a folder with 'three-split screen' and leads to a file that has 'splitwindow' in the name. I do know if I enable under settings my device will do split screen, but not sure if this correlates to the firmware I need. Thanks.

One file is dated 2022/08/17, the other one is dated 2022/11/18 so probably one version is newer. The older version was tested and confirmed working

YT5760B_AC8259 - HW FW (google.com)

Select "Other AC8259 HUs" to see your HU and install success confirmation on the older version.
 

howardc64

Senior Member
Apr 30, 2016
246
59
Hi, I have a request because I am also stuck with this problem, i.e. on a clean pen drive, I put two XYAUTO_UPDATE.bin files and a screen driver file, e.g. and how did you connect the pen drive? just turn off the unit, mount the usb disk with the driver and turn on the unit? Thanks in advance for your answer, best regards :)

The member you reference showed his recovery solutions in link below. There are also others that recovered wrong UI resolution display bricking with XYAUTO_UPDATE. Maybe you already have seen these posts?

 

esavvas

Member
Dec 3, 2017
8
2
Only suggestion I can offer is reverse camera resolution and signal menu selection but maybe you already tried it.


Hi Howard and thanks for the reply. I managed to install it in the car over the weekend and reverse works when connected to the car. Maybe something with canbus. I will update my post with all issues/findings for reference!
 

esavvas

Member
Dec 3, 2017
8
2
Have managed to answer some of my questions and adding my findings here for future reference

Fan: the build in fan is powered by the a10 12v amp lead. So to activate you need to activate amp from the pull down menu of the android screen :) See picture attached

Bootanimation: no need to root. You can use the menu from the Car Settings app. Transfer appropriate formated files to the any folder in the internal storage folder and select them from the app (a png file for the initial screen , replacing the android robot, and a bootanimation file for your car). For bootanimation, many good resources in this forum.

Reset button: the unit has too small holes on the top and was not sure if both were mics. I ended up opening the unit. The right hand side is a reset button :) You need something pretty stardy to press though, as is not the typical contact switch of other units. Picture below

Questions remaining:
a) Reverse camera. The one shipped with the unit i cannot make it to be seen from the unit. Tried both reverse and CVBS inputs, Made sure is powered correctly, etc. Maybe a bad camera. Waiting for another one and will see

b) RDS app not opening. Maybe because of no antenna. Will see in the car.

-----
Vendor: podofo model v4plus
Android : yt5760b
Car Audio: J1.73.7 / AC8259
Can Bus: 1.017
Mcu: 0.7
8core, 4/64, display 1024*600 (lvds NOT mipi)


Hi, a quick update for future reference after installing the said unit in my car (Polo 6R) and some open issues, not of high priority

At first, unit was always powered when connected to the car, even with ingition key off. After a quick search here and in google, I realized I had to disconnect the "low use" as per the video here:
I also checked that unit is in "user mode".
Now the unit behaves as expected and documented here and in Howard's site.

Reverse camera is activated with the unit in the car. So no issues there.

Issue: I cannot change or alter the reverse quidelines as per the solution in post #794. The factory setting menu version checks out (pic) but in the canbus parameter settings (pic) i cannot find those options. Maybe is dependant to the canbus adapter model version. When reverse is engaged however , and touch the screen you get some options on the side (see pic) . You can remove the lines that way. Any other tips on how to adjust vertically?

Some lesser open items/things to discover:

a) DAB+ app shows always "connecting" . Maybe is just because there is no antenna for that. Can somone please check me out? (i realized i said rds in previous post, apologies)

b)Root. I tried and searched everywhere, but cannot seems to find the best (if any) way to root this unit. I saw a user referencing a root after unbricking, but cant find anything else. Is that possible and if yes how?

c) Boot in Recovery. I hope i never needed. I tried everypossible combination with rst/power, etc, nothing seems to trigger that in my unit. I have a note paqge full of possible ways from every source out there. Nothing. I guess if needed will get to usb/pc connection. If someone has same unit and found a way , please let us know!!


Everything else works as expected/documented here and am pretty satisfied for price/value. Luckily we have this trhead because documentation is reaaallllyyy bad (to be polite).
318120451_3191021057874824_8302665849937952184_n.jpg
319366362_862761698184526_4959011172836438436_n.jpg
319053082_5490208304434817_5226269672755849316_n.jpg
 
Last edited:
  • Like
Reactions: Propellastic

Top Liked Posts

  • There are no posts matching your filters.
  • 1
    Hello Guys,

    I want to install and update my firmware 1.73.3 to 1.73.7

    I have two questions;
    1) I have J letter in my android version is it a problem for the update?
    2) I have a Tesla Type Screen. I choose LINK that file. Is that correct.

    System Info as follows,

    Please help me regards.
    1
    Could you help me with my YT5760B? I updated it through the software downloaded from the xy auto site from version 1.68 to 1.73 but the image was bad and the touch was inverted, I can't find anything to solve it, I'm from Brazil and nobody here understands. Can you help me?
    You may show with a small video what you mean with "touch inverted".
    1
    Bro I have a YT7260B can you please share the file you used? or maybe its location in XYAuto?

    I believe he installed the link I provided in post #1292. UI20 is resolution specific so make sure you are 1024x600.
    1
    DIdn't know that UI20 worked for YT7260B, I assume you ahve 1024 x 600? We know from prior testing UI20 firmware files are resolution specific.
    Yes, mine is 7" 1024x600!
    Bro I have a YT7260B can you please share the file you used? or maybe its location in XYAuto?
    I installed last FW for YT7260B available on XYAuto first, v1.73.7. + UI20 available on howardc64's Mega repository.
  • 4
    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
    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 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