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

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howardc64

Senior Member
Apr 30, 2016
425
113

Interesting, upgrading that file is basically loading the correct display driver.

So maybe the 1.73.7 ota file for vertical units have the wrong display driver (horizontal one)? Or maybe it is just the horizontal ota upgrade file? haha.

I guess horizontal and vertical firmware difference now is probably just display driver and touch screen resolution/orientation selection.
 

augustinionut

Senior Member
Apr 21, 2015
1,584
212
Hi. someone have pictures with the aluminum case of the PODOFO? I want to mod the cooling of the amp.
index.php


EDIT> i just found that the android 10 is fake.

With Android 9, Google introduced Digital Wellbeing, which comes with many tools to help users limit the amount of time spent on their phones. So, if you feel like you are addicted to your phone and that is time to take a break, Digital Wellbeing will help you achieve that.

Android 10 also introduced Focus mode, another great feature that came along as a part of Digital Wellbeing. Simply put, Focus mode is something like an improved version of the familiar feature Do Not Disturb. When you have work to do and find certain apps distracting, you can enable the Focus mode and choose the apps you want to be paused.
I have no FOCUS ASIST.
 

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thehun639

Member
Mar 24, 2023
6
1
Interesting, upgrading that file is basically loading the correct display driver.

So maybe the 1.73.7 ota file for vertical units have the wrong display driver (horizontal one)? Or maybe it is just the horizontal ota upgrade file? haha.

I guess horizontal and vertical firmware difference now is probably just display driver and touch screen resolution/orientation selection.
I didn't understand what was going on, but I found it interesting that the right software was failing the screen rotation. maybe it's specific to my device
 

quletadik23

Member
Dec 7, 2011
46
2
Anyone knows how to fix google assistant app? It doesn’t stay default. Every time I turn on the unit and run the app. it always ask me to set it as default app.

Google assistant is very useful to me.
2F9571D3-E2DF-46B5-B450-2F263A748542.jpeg
 
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Petar23

Member
Feb 23, 2023
20
0
if it can be done in an android phone using an OTG connector it is likely to work on these units
No, it can't be, I have tried that, I think it is firmware issue, I have tested different players, including Poweramp, but with no success. Only time I was able to get sound trough usb was with the Usb Audio Player PRO, this player have its own proprietary usb audio driver for android. But main issue is that it works only with this player, you can't force other sounds trough usb, like radio, navigation, Spotify, etc...
 

polarfest

Senior Member
Jun 24, 2016
58
8
No, it can't be, I have tried that, I think it is firmware issue, I have tested different players, including Poweramp, but with no success. Only time I was able to get sound trough usb was with the Usb Audio Player PRO, this player have its own proprietary usb audio driver for android. But main issue is that it works only with this player, you can't force other sounds trough usb, like radio, navigation, Spotify, etc...
Have you checked developer mode? Maybe you can tweak some settings there like USB Debugging and others
 

wizardrahl

Member
Mar 16, 2023
6
0
The popup windows that shows in-coming calls is likely a Bluetooth App popup. The app likely doesn't know anything about Android contacts.

HU's Android would need to know what you want without going calls whether to use its SIM or over BT. Doesn't sound like it has such option. xyauto is doing all BT call functions via BT app (other than turning on/off BT which it leaves to Android)

Hi,

probably was answered somewhere but after searching I was not yet able to find the answer. Is there any way to persuade the system which BT app to use for incoming calls? Phone is connected via BT, when I make a call I can open app and place a call with HU via phone. However when I receive a call on a phone, HU is using default BT app to show incoming call.

Thanks...
 

ekvdc

Member
Mar 18, 2023
30
5
Finally have the right cable for my car....Hyundai IX35
Inserted Sim card but the 4g connection is very bad anyway to improve?

I have a rear camera factory installed. It is connected through the camera in port but does not show up when in reverse. Maybe someone has an idea??
 

howardc64

Senior Member
Apr 30, 2016
425
113
Finally have the right cable for my car....Hyundai IX35
Inserted Sim card but the 4g connection is very bad anyway to improve?

Where you located? Cellular radio LTE bands very limited in US


I have a rear camera factory installed. It is connected through the camera in port but does not show up when in reverse. Maybe someone has an idea??

What does it show? If static, then needs to set to correct resolution. Might also confirm power is supplied when in reverse. I'm assuming you supplied 12v supply from reverse light bulb similar to most installation?

 

ekvdc

Member
Mar 18, 2023
30
5
Where you located? Cellular radio LTE bands very limited in US




What does it show? If static, then needs to set to correct resolution. Might also confirm power is supplied when in reverse. I'm assuming you supplied 12v supply from reverse light bulb similar to most installation?

Located in The Netherlands.

Camera was allready build in so did not make any adjustments there...
 

howardc64

Senior Member
Apr 30, 2016
425
113
Located in The Netherlands.

Looks like Netherland matches most countries (including China, except US) for LTE bands used

Netherlands | Prepaid Data SIM Card Wiki | Fandom

Probably start with finding out what band connected to to research problems. I believe there are Android apps that helps but I'm not so experienced.

Camera was allready build in so did not make any adjustments there...

Did you try to match camera resolution + frame rate? Here is the correct link for info

 

ekvdc

Member
Mar 18, 2023
30
5
Looks like Netherland matches most countries (including China, except US) for LTE bands used

Netherlands | Prepaid Data SIM Card Wiki | Fandom

Probably start with finding out what band connected to to research problems. I believe there are Android apps that helps but I'm not so experienced.



Did you try to match camera resolution + frame rate? Here is the correct link for info

Camera is working now...Had to connect reverse cable to A6 on power connector device. I thought this was going through the canbus, but aparently it had no connection at all.
 

Warax2

Member
Nov 12, 2013
6
1
Here is what I think happened since you never flashed 1.73.8 firmware and its new partition table.

Makes sense, a major change like a partition upgrade is something that most users might not able to perform and could cause more harm than good, it requires experience, knowledge and tools. I could check the computer version of 1.73.8 maybe that one does the partitioning black magic job.

Is this the reason why I can't upgrade from 1.73.7 to 1.73.8? I downloaded firmware for 5760B unit. I copied firmware to USB stick, then started update procedure from settings menu. Unit then restarts, shows progress bar for a moment, and then aborts the installation (as shown in attached picture).

Any way to fix this?
 

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polarfest

Senior Member
Jun 24, 2016
58
8
Is this the reason why I can't upgrade from 1.73.7 to 1.73.8? I downloaded firmware for 5760B unit. I copied firmware to USB stick, then started update procedure from settings menu. Unit then restarts, shows progress bar for a moment, and then aborts the installation (as shown in attached picture).

Any way to fix this?
For 5760b you must do it via PC and usb cable. Check earlier posts from @howardc64
 

howardc64

Senior Member
Apr 30, 2016
425
113
Is this the reason why I can't upgrade from 1.73.7 to 1.73.8? I downloaded firmware for 5760B unit. I copied firmware to USB stick, then started update procedure from settings menu. Unit then restarts, shows progress bar for a moment, and then aborts the installation (as shown in attached picture).

Any way to fix this?

1.73.8 changed partition table and require PC to flash firmware. Will erase everything include IMEI and zlink/360 activation. All can be recovered.

If you want to try, info here. It is quite a bit more complex than standard upgrades via System Info menu button. But not too difficult depending on computer skill level.

 

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  • 1
    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)

    1
    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.

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

    1
    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 :


    @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.
    1
    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

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


    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?
  • 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
    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.
    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
    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.
    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.
    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 :)