yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] ScorpionSX:
If it doesn't work this way, then you are providing the radio with the ACC signal from some other source.

Two reasons come to mind:

1. I'm not sure if this is set up from factory or not, but it may be, that you have a delayed shutdown for audio - doesn't the unit simply power off later? Or maybe after you open the doors when you remove the key?

2. This would apply if you had some aftermarket stereo before, sometimes they need to switch the wires for battery and ACC, which would also produce the same issue. But if I remember correctly, you said that you had the OEM Sony headunit before?

Also, try to switch the pins on the 8pin connector as I wrote before, this could help with the communication between the car and the headunit, so there is no chance for some mistake because of wiring.

And, if none of this would help, then what you can do is simply connect those two pins (red&orange) with the two blue pins that come directly from the OEM connector. That way the canbus would still have power, so it can control whatever it needs, but you would provide ACC power directly from the car to the headunit. (And also the button backlight - that's the orange wire)

You can use it like this, it's ok, what you can't do is to have it running from both car&canbus, some wiring harnesses have this option too, but the one for Hiworld and these units you can only have one or the other option. For the headunit it doesn't matter if it gets the ACC signal from canbus box or directly the car wiring, it's still the same 12V power that goes to that red wire. Hope this makes sense. ;)
[Android Head-Units] Micky001:
just scratch a little bit somewhere ,the insulation on the brown wire, (enough to reach the metal..) and connect there the camera power supply wire. Then, of course, insulate back in place.
[Android Head-Units] cleverdicky:
Hello all, despite the few issues some have, Im looking at getting one of these units. The top spec s8 is only around 200 quid and seems to have all the good hardware - even if the software is crap atm.

But I have a question for anyone that has one all working. If anyone has lol.

This doesnt seem much but is a biggy for me. And that is to do with the zlink / car letter program Ive read about. It seems to be an alternative to google AA. But is it capable of allowing the unit to manage / view / read sms messages (or others ) from a linked android phone. ??
[Android Head-Units] MauriBixio:
SMS on unit: no.

But NONE of these after market Android devices can do this, DIRECTLY, on their own.

The BT phone of the radio is paired with you phone (main phone device) It is NOT an "all stand alone" phone of the unit.
[Android Head-Units] Dimitar Dimitrov 94:
Well, when I bought the car it was with the OEM SONY RADIO. I don't know if there was some aftermkart one during the years in the past. But the power cord - the OEM one coming out from the car seems to have original wires. At least there is certainly nothing cut and spliced.

I didn't find any sound option in the Factory menu.

"Also, try to switch the pins on the 8pin connector as I wrote before, this could help with the communication between the car and the headunit, so there is no chance for some mistake because of wiring."

Based on that: I'm not sure I know how to switch them wihtout break the whole pin at all.

"And, if none of this would help, then what you can do is simply connect those two pins (red&orange) with the two blue pins that come directly from the OEM connector. That way the canbus would still have power, so it can control whatever it needs, but you would provide ACC power directly from the car to the headunit. (And also the button backlight - that's the orange wire)"

Based on the quote above. Totally makes sesne, however don't understand which are the blue pins come directly from the OEM connect. All of the cables enter in the big box? Should I cut the wire before that and link it to the red-orange cable from the media?
[Android Head-Units] cleverdicky:
delete
[Android Head-Units] cleverdicky:
I understand that, I was hoping that perhaps this zlink emulated or worked in the same way as googles aa in that it could. There are many radios (oem) which have developed their own android (open source) to do this. Like ford, volvo, citroen etc without aa. From searching Ive found many many posts in forums and old apps to do just this - or claim to, that are well over 10 years+ old. INowadays nobody privately develops apps unless they can get them vetted by google and 'approved' for listing on google play store. Just to take the corporate shilling. . And that means google makes sure only its only aa can do this - unless companys write their own apps that dont go in playstore. I hoped this carletter / zlink thing was one. Maybe someday
[Android Head-Units] PrinceLc:
When connected to AA via Zlink or CarLetter it's line OEM solution for AA when you get a SMS or WhatsApp you see it and you can reply to the massage via voice
[Android Head-Units] MauriBixio:
Well...my answer was about whether you can receive sms DIRECTLY, via BT and oem device app.

Obviously if we're talking about going through AA or other apps... that's a different matter.

The radio DOES NOT allow you to receive sms directly, this is certain, but you can still use external apps, for Android, if they exist suitable for the intended purpose.
[Android Head-Units] cleverdicky:
No one will judge you. We know the only radios that have it 'built in' are the dedicated empty branded boxes from the likes of pioneer etc. who are happy to let idiots pay a fortune for a shiny box that lets their phones do all the work.

I was asking if people who had one of these k706 / s8 /QF001 etc working, and knew if the software included with these k706's radio was capable.

Unless you have one, and its all working correctly then you wouldnt know.
[Android Head-Units] PrinceLc:
So for understanding and to be sure what is your question again ? Do you want to know if the firmware itself from the radio is capable to receive SMS or AA ?
[Android Head-Units] Tchutte:
I stripped the cable, put the car in reverse but don't get power :(.
[Android Head-Units] MauriBixio:
I assume you know that to measure volts with the multimeter have to touch the positive source with the red probe, and GND with the black probe...

The reverse input usually happens via canbus decoder, and you don't have to intercept any wire for this, at least, with "dedicated" canbus decoder.

I have LZ with my car, but suitable for BMW/my car, and I don't have to do anything to get reverse input.

To power the rear cam, with +12v, you must intercept the positive from one of the reverse lamps.
[Android Head-Units] Tchutte:
Ofcourse, i put the red probe on the brown cable and the black probe to a negative point.

When i measure the power for the amplifier i get 12V.

Or do you mean something else?
[Android Head-Units] MauriBixio:
Ok for the measurement with the multimeter., right method.

But... I don't understand what you want to do?

Do you NOT get any automatic switch via canbus when you engage reverse gear, and then it doesn't automatically switch the display to the video signal, coming from the rear camera?
[Android Head-Units] Tchutte:
Yes the reverse camera isn't switching on (isnt working at all)

I got the tip to connect my wire 1 (same as 2) to the wire 4.

So i stripped cable 4 and measured it.
[Android Head-Units] cleverdicky:
Hello maybe i can help while im here.

There are two options for a reversing camera / headunit.

But always the camera needs 12v to work - usually wired to reverse light. You select reverse, the light comes on and powers the camera.

Or you can leave powered directly all the time.

Crucially the head unit needs to switch display to show only when reversing.

1st by 12v from reverse light back to reverse trigger input of head unit. (not output)

2nd by canbus. This does not need any power from rear light. Some units do it internally. Some have a switched 12v output that is only powered when canbus detects reverse. This 12v output from canbus unit connects to 12v camera input.

All depends on make / model / wiring.
[Android Head-Units] Micky001:
I have two cars equipped with different Android navigation devices , both are use the same Can Bus LZ, 20 pins. On none of them, the rear camera worked without connecting the wire from pin 8 of that can bus. And both are work perfectly. Opel Antara, Opel Meriva. The cameras are not OEM, but aftermarket. Maybe in his case, it is not that pink wire who come from the camera power supply. But, categorically, when act the gear shift in reverse, on pin 8 of the LZ can bus, it come 12v positive. Only in reverse gear!!! So, is dedicated pin/wire, for revers gears signal. My cars have different tractions, one of it is with manual gearbox, the other one automatic. Both can bus-es, are work the same, apply 12v when putting in reverse gear. So, I don't see the point of connecting to the reverse gear lamp, (involves connecting additional wires, dismantled parts..) being the same thing!

...Only if the OEM plug does not transmit a rear signal to the can bus, then yes, an additional wire from the reverse lamp are required... So, first of all, it must be checked with the multimeter, if the brown pin 8 can bus wire is powered by positive 12v ,in reverse gear.
[Android Head-Units] ScorpionSX:
Ok, sounds like you would have a factory wiring without any changes, I doubt that if there was an aftermarket radio in the past, that someone would clean up the wiring back before putting the Sony back in. So lets go forward with thinking that it's all right on this end.

The two pins: you can try carefully pry up the small white piece of plastic on the connector that holds the pin in place, that is probably the safest way to do so. Use either a small flat screwdriver or a thin knife. It's very delicate and can break, so you really need a lot of patience and steady hands to do it. However, if you don't feel like doing it like this, you can always cut the wires and attach them back either by twisting them together, or even soldering them, it's up to you.

I think it's not completely necessary to do this, the canbus communication should work either way, but I would just like to be sure.

Hmm...and those blue pins/cables...I'm looking at the original picture that you attached. If I'm seeing it well, there is one connector (coming from the big square main connector) that can be connected to the red/orange cable instead of the one that is connected now (coming from the canbus decoder). I will attach an edited picture to show you what I mean. That way you should be able to accomplish what I was talking about. I hope it's clear, the connector that I'm talking about it kind of "hidden" in the wiring on your picture :)
[Android Head-Units] The-Doc:
I've had nothing but bad experience with Ossuret. I don't know if Hizpo are and better or if they're just two sides of the same coin but I'll never purchase anything from Ossuret again. I have one of their radios in my shopping cart on AliExpress but I'll be binning it and trying Hizpo.

Be warned, if you ever have to open a PayPal case against Ossuret, don't close it when he asks you to, no matter what he promises you.
[Android Head-Units] Tchutte:
I checked, I dont get 12v :-(, see my post about stripping the cable.
[Android Head-Units] PrinceLc:
Have only good experience with Ossuret changed without problem my unit they activated for me CarLetter for free and shipped for this 0,01€ new display display cable and last a new double usb cable all without problems. Sorry that you have bad experience
[Android Head-Units] itiswitis:
It's possible your car and canbus isn't compatible with reverse detection or the incorrect car was selected in the canbus configuration. You can back probe the harness for 12v when in reverse, use a paperclip or thin wire (or kit from amazon), no need to strip the shielding. If you find any 12v (in reverse), it can be wired to the reverse detection wire.
[Android Head-Units] Micky001:
Then, unfortunately :) ... ScorpionSX it is the right one answer, the only method is the "traditional" one. You have to connect the camera power wire to the plus wire of the reverse lights. That is !.. Remove the rear light (...where you have the reverse light present . Not all cars are equipped with the reverse lights on both sides, but you can connect to either) find out which wire goes to the positive 12v reverse light bulb, connect to it and that's it... There is another, simpler way, but this are requires to knowing the car's electrical wiring, because for sure, you have a reverse connection signal also somewhere in the front side. Aftermarket reverse cameras ,usually come with the option to connect the power supply on both ends of the cable, front or rear side.However, if your camera it's the OEM one, it should have originally been powered through the OEM plugs, which you now the Android unit. If you looked on and check pin by pin, on the OEM plug with a multimeter,maybe you might find the rear signal wire...
[Android Head-Units] Tchutte:
Thx I had contact with another member he also has a mazda cx5 and his oem camera works out of the box :/. Will ask the supplier again.

To clearify when i put my car in reverse nothing happens in the unit.

Still have some static noise when listening music. I noticed i dont need to connect my white and red rca plugs (it works without connecting). I read somewhere remiving a resistor, is that still an option?
[Android Head-Units] MauriBixio:
As we wrote to you, the canbus decorder ONLY provides automatic switching when you engage reverse gear, via canbus from your car, and then the radio switches the VIDEO signal coming from the rear cam, which MUST be powered independently, and NOT via canbus.

The rear cam (after market) is powered by taking +12v from one of the reverse lamps... this is the way it works for the majority of cars/brands.

Naturally, you car MUST provide an input to the canbus decoder, when engage reverse gear, to let it understand that it is engaged.

If it doesn't provide that,,will NEVER work.
[Android Head-Units] Micky001:
Believe me, it is not ..."just like that"! This is what I do...in my free time, I install car audio units. Specializing in particular on the Opel series.(..and I installed dozens..) The LZ decoder receives the information via canbus, and then transforms it, applying also positive 12 voltage on different terminals, not only exchanging information between the audio unit and the auto canbus line. This is how the device starts or enter in stand-by mode the unit. And the information about the rear shift gear, IT CAN definitely receive it via canbus line,and AND IT DOES. And so, that decoder CAN supplies by itself on pin 8, positive 12V when gear shift engage . Not from the other side, not from other sources ! I really don't have any other wire mounted on the rear lights, or from! By the way, you can find a bunch of videos on YouTube, how connect the reverse camera thru the "magic box", pin 8. Just do a search on : "

How to wire reverse camera if your vehicle has canbus (Jeep,Dodge,Chevy,Gmc,Volkswagen+more)​

(I don't know if I have permission to post youtube links) No offense, don't misinterpret, but you're wrong if you think it can't be done ,other than by direct wire from the reverse lamp. On the contrary, that method is the " traditional" one ("we" say), only when... it cannot be done otherwise. Especially old cars... I connect the audio units to the car's harness, in only two points: The OEM ISO power supply/speaker plug , and the OEM display plug. Both plugs contain canbus pinout connectors , but no one , any 12V rear gear engage signal . How do you explain that, without being connected to other signal sources such as the reverse light bulb, I have 12v signal on the pin 8 canbus decoder, ONLY when the rear shift is engage ? From where does that signal come , because definitely , it does not come from either the ISO socket or the display socket. Yes, that box alone does that "miracle"! Tomorow, I can make a video from my car, to see. I can check "with you" on multimeter, from all connectors terminals, to show you there are no any rear signal on it, and the rear camera, that is work ONLY when I connect the power supply wire, on that magic box. (...sorry for my English, I do much better in Romanian) Peace ! :)
[Android Head-Units] dlajos:
Melyik lenne a jobb választás?

https://www.aliexpress.com/item/1005006119618785.html?pdp_npi=3@dis!USD!100,86 USD!65,56 USD!!!!!@211b617a17069393120095631ed156!391870707807807812012

8/128g OSSURET

https://www.aliexpress.com/item/1005004271296240.html?pdp_npi=3@dis!USD!162,50 USD!81,25 USD!!!!!@211b61bb17068657363413029e854f!12418!im

6/128G JUNSUN
[Android Head-Units] dlajos:
Ossuret
[Android Head-Units] dlajos:
Junsun
[Android Head-Units] Mr.TT_NZ:
Paging @TorstenH

Are you still around?

Back in post #4504 on December 8 you posted a piece of code which listed all the possible codes which you said comes from QF_CarSettings. There have been some new codes added since then and I'm trying to duplicate your procedure but I can't find anything in the firmware file which has that name. Where in the FW file does that reside? How did you do it?
[Android Head-Units] Tchutte:
Thx checked the video.

I have a OEM camera.

But in the beginning of the video the unit go's to rear camera lost signals when putting in reverse. When I put it in reverse the unit doesn't do anything (just keeps the radio an navigation on).

Maybe something with my canbus? Or the chinese wiring? Or am I missing a setting?

(The reverse is on in settings).
[Android Head-Units] Micky001:
...maybe, you have to switch the revers settings to see "closed", or "off"?...The "Chinese" settings, on" custom menu"...sometimes they are confusing.And I also encountered problems sometimes, I didn't know how they interpret that in "on" or "off" to display. Like viewing open doors : If I set it open, it doesn't show them. If I set it "closed", it shows them... Logically, it should have been, exactly opposite, if you understand what I'm saying...
[Android Head-Units] PrinceLc:
Yes with reverse and Canbus Decoder I agree my backcam is connected on the rear wiper motor also always on by ignition on but the signal comes only when I put the gear in reverse because the cambus decoder switches then. My car is a VW Passat B7 from 2014 .
[Android Head-Units] PrinceLc:
What code do you need ?
[Android Head-Units] MauriBixio:
Test with BMW car you will see that if you power the rear cam directly from canbus, it won't work...I'm talking about POWER, no canbus signal for automatic switch with rear cam reverse....

edit:

I'm an engineer. electronic...so I don't think I know what I'm talking about...

via canbus it switches ONLY for automatic VIDEO IN switching, but the rear cam MUST be powered by itself... anyway, at least with BMW cars, and it MUST be powered, if you use the reversing lamp, with a DC filter in series, since the voltage on the lamps is in PWM ,and alters the video signal, disturbing it.
[Android Head-Units] Astralech:
You are right here, the Canbox from pin 8 to pin 5 of the unit socket gives a 12V signal with reverse gear engaged. I don't know if it can be additionally loaded with current from the camera.
[Android Head-Units] ribasman:
Can you spare me that contact to the manufacture please?

My device won't allow to Open settings. Can't do any thing on its.
[Android Head-Units] PrinceLc:
Factory reset helps
[Android Head-Units] cocoamba:
I don't have the manufacturer contact. Only a chat with the seller (Ossuret).
[Android Head-Units] itiswitis:
Yes, it sounds like you're missing 12volts to the reverse detection pin. When you shift into reverse, do you see 12volts on the wire going to the G5 pin (on main power harness)? The G5 pin is what triggers the unit to auto switch to reverse cam mode. If there is no power sent to the G5 pin, the unit doesn't know you have shifted to reverse gear.

And yes, canbus can interpret when your car is shifted to reverse gear, but not for all cars. Works for Toyota Camry.
[Android Head-Units] Barykelo:
https://xdaforums.com/t/general-dis...d-read-first-post-first.4525675/post-89298124
[Android Head-Units] Barykelo:
Unfortunately, I have no idea what firmware it is.
[Android Head-Units] Ferike57:
Hello!

I replaced junsun with hizpo s8 8-128 GB head, this is basically ua. like the ossuret. I did not regret the exchange. 3 usb, optical and coax outputs, the sub volume can be adjusted, fan, etc. Does your Mazda have a bose hi-fi with a subwoofer? Ask the seller if it is compatible with the stuff you are buying. Maybe you need another cable harness then. The radio reception is quite weak, you need an amplifier of several thousand feet and it will be good if this is also a factor. Next time, write in English because the mods will speak. If you have any questions, feel free to write! Regards: Ferenc

Szia!

Én junsunt cseréltem hizpo s8 8-128 GB fejre,ez elvileg ua. mint az ossuret.Nem bántam meg a cserét.3 usb,optikai és koax kimenet,a sub hangerő szabályozható,ventillátor stb.A mazdádban bose hifi van mélynyomóval?Azt kérdezd meg az eladótól hogy azzal is kompatibilis-e cucc amit vennél.Lehet hogy másik kábelköteg kell akkor.A rádió vétel elég gyenge,kell hozzá pár ezer ft-os erősítő és jó lesz ha ez is szempont.Legközelebb angolul írj mert szólni fognak a modik.Ha kérdésed van írj bátran!Üdv:Ferenc
[Android Head-Units] 19vik:
I remember @PrinceLc wrote you few pages behind, Mazda OEM camera need 6V, not 12V. Searching on Ali, all reverse camera for Mazda have 6V. If you power yours at 12V will damage the camera or canbox. Probably that's hapened if you received wrong canbox and have 0V in brown wire when engage in reverse and nothing like black screen and "No signal" mesage on display.

Also, read here: https://xdaforums.com/t/about-canbus-box.4540667/#post-87987347
[Android Head-Units] TorstenH:
I will provide a detailed instruction asap. Sorry for late reply but currently I'm busy with my DAB+ player app DABdream.
[Android Head-Units] Dimitar Dimitrov 94:
It seems that I understood you wrongly. Saying "OEM" box I was thinkig for the wire cord that comes directlyfrom the car (See the screenshot)

According to the other pin - yes, you're right. There is one more pin comes from the big square but as I mentioned in the previous messages, if I connect it to the orange-red cable - the media doesn't start at all.

Actually this should be correcet, because this way the canbus it is not connect to anything. See the pictures.

According to the update: Across the week I plan to try to update it, but to be honest I don't expect to recover the sound this way or to fix the turn on and off the media based on the ignition off/on of the car.

So, I'm open for another suggestions about both topics.

I keep assume that the issue with the sound would be resolved after changing some option in some of the menus or something hardware resposnsible for the sund is being burnt.

According to the pernament on mode - I guess the canbus is corrupted.
[Android Head-Units] j0hn83:
With a SIM in my unit I can make calls but can't receive calls.

I can send and receive SMS by installing the Google messages app.
[Android Head-Units] Mr.TT_NZ:
Thank you @TorstenH, I'll await patiently.

Please just when time permits.

It's just for interest as there have been a couple of new codes added which we know about from contributors here but maybe there are more that we haven't noticed yet and could be useful.

If I could know how to do it myself I wouldn't need to bother any of the good people on here.

@PrinceLc nothing actually needed, explanation as above.
[Android Head-Units] MauriBixio:
Read carefully what I wrote...we were talking about being able to receive SMS DIRECTLY, with the stock BT phone app...obviously if you install "external" apps you will be able to have other features and utilities.

In any case, the unit will never be like a real standalone smartphone and not do the same things, of course.
[Android Head-Units] PrinceLc:
You can make a call with the SIM and Google phone app but no sound and no mic is working. On my old Junsun with Google phone you could make calls but the Google app uses the BT connection. On this unit it's not possible, why it so I don't know