yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] piticu2015:
Guys an answer anyone for my post #3,964 ? :) Is anybody using Zlink wireless for AA ? Is it the launch of Zlink delayed so much after to boot sequence is finished ? Is it Carletter faster launching just after the boot sequence ?

It went sideways a little pic the answers to a versus of AA or native apps running on the HU Android OS. So lets continue woth this till I have some feed-backs to the initial question :)

So for AA or not AA things are simple if you think it is worthy to pay another monthly fee and have another sim dedicated to the unit and of course you have a unit with 4G sim than this is a good way to go but you end up installing a lot of apps that will take cpu and ram that normally you have already on the phone. But what if to have 2 cars as many families both with HUs it means 2 x sim to pay monthly and the costs to run this setup add up quickly :)

If you want to pay only for the sim that you already have in the smartphone (my use case) you can use either AA (wireless ideally because you can have the smartphone in a bag, pocket you just leave it there) or a 3rd option which is similar with first option but you use the hot spot from the smartphone as Internet source. This seems a little bit more complicated because you should activate every time the hot spot when going to the car (extra overhead) or to just leave it always active on the phone (not a smart thing to do security wise and battery wise). Another downside for not using AA is that if you want to commute always on Waze/Google Maps you have to installed some apps to auto-launch them (extra work) or manually give 2-3 clicks. It's a matter of taste and the end of day but for me maybe because I am used from the OEM cars with AA units just connect the phone when I change the cars with AA and I have everything installed with my account sand configuration available in any cars I enter : Waze, Maps, Spotify, Whatsapp, TuneIn etc. In my opinion TuneIn is the best radio quality without any antenna amplifier, DAB, RDS apps for Android etc. All this require extra work and extra money and the results are so and so. For me to have everything already installed in the phone and using the apps from the phone is the most simple setup. If I can have this wirelessly without touching the phone is even better. The only problem I have so far is that on my unit the Zlink app (which otherwise performace fast and stable) take almost a minute to auto launch after boot. Of course I can press the on screen icon the force the launch it faster but I am losing a nice thing (auto-launched automation which is pretty cool but unfortunately slow).
[Android Head-Units] sniclman:
Hello guys,

i am facing two troubles with S8 unit 8Gb/128Gb (Hizpo). Firmware latest from autofather.com.

1. Fan remain on if unit wake up from sleep, even when temperature of CPU is lower than 50°C and fan app is set to automatic mode.

This happen only when unit wakeup. Not happen if unit start from cold start.

If i open fan app, set manual mode, then automatic mode, fan will work only when temperature reach more then 50°C.

it is little anoying doing this everytime when unit wakeup.

2. When unit switched to dark mode, google maps will not switch to dark mode and stay in light mode.

Can anybody give me some advice how to fix this two issues?
[Android Head-Units] sniclman:
Hello guys,

i will just share S8 8Gb/128Gb Hizpo unit board and thermal pads for better cooling.

Used thermal pads:

10×10×1.5mm

10×10×3mm

Buyed from Aliexpress, price under 6USD for 100pcs of 10×10mm

Temperature of CPU is around 35-60°C (depends on how many aps runing). Average temperature is around 45°C.
[Android Head-Units] sniclman:
Same here. I set google map voice from medium to low. It is not the best solution but better than nothing.
[Android Head-Units] jokex:
Wireless? What do you mean. As much as I undertand Zlink works via BT or USB.

Using USB you don't have to do anything, beside waiting a little bit. And I think, that AA is a little bit slower in reaction with BT.

I have the impression, that the position of my car hangs behind al little bit using AA. Could be a problem when routing in a strange big city with many crossings to watch for. Maybe better if putting the phone nearer to front window, but then, it's the situation before building in the device.
[Android Head-Units] MauriBixio:
Can you write the link to the pads by Ali? ;)

edit:

like this,ok? But right Thickness ?

https://it.aliexpress.com/item/1005002842166246.html?spm=a2g0o.detail.0.0.4ba5QGSOQGSOD9&gps-id=pcDetailTopMoreOtherSeller&scm=1007.40050.354490.0&scm_id=1007.40050.354490.0&scm-url=1007.40050.354490.0&pvid=bc92c4e5-da20-4af3-b8ae-dd99861748a2&_t=gps-id:pcDetailTopMoreOtherSeller,scm-url:1007.40050.354490.0,pvid:bc92c4e5-da20-4af3-b8ae-dd99861748a2,tpp_buckets:668%232846%238109%231935&pdp_npi=4%40dis%21EUR%211.72%211.12%21%21%211.79%21%21%40211b801b16955801561321853eb7bd%2112000033948153356%21rec%21IT%211762724576%21
[Android Head-Units] marioti:
You need there thermopad only on CPU, the rest of your idea don't do nothing. All chips below this thin plate, don't have any contact with this plate. I have thermopad only on cpu, and the temperatures are similar to yours

But there is something else. In your photo we can se the Bluetooth chip, and it is Realtek 8761BTV. Acoording to datasheet it's a 5,0 BT dual mode (BR/EDR + LE). So it should be able to serve a multiconnection. So we going back to the bad software
[Android Head-Units] piticu2015:
Guys I have simplified my questions about Zlink and connection time :) I have run some tests more scientifically using a timer. The situation is this.

- With Zlink set to auto-launch it takes 75 seconds from rebooting the HU (from first logo appearance till the Waze is lauched through AA). The boot sequence is finished in max 25 seconds so 50 seconds is Zlink part (huge time!)

- If Zlink is lauched by manually clicking its icon (just after the boot is finished and its icon appears on screen) it takes only 35 seconds (Zlink time required 10 seconds instead of 50 seconds, pretty decent)

I repeated 4 times each test the same values obtained (+/-1 sec) so the conclusion it can be only one. There is a timer introduced with Zlink if set to auto-launch of around 40 seconds delay before the Zlink service is started.

In conclusion those using 2023 models please confirm if this is a normal behavior with Zlink on any S model or this timer is introduced only on cheaper versions or maybe on newer firmware (I am running on a May 2023 system and March 2023 MCU on a S2). Also I am interested if anybody tried also Carletter and has the same delay coded or it auto-starts faster after the boot (I don't have a license for Carletter yet but if it starts after boot it clearly deserves a try). Many thanks and eventually please private message me.
[Android Head-Units] sniclman:
Thats exactly them.

Thickness for my unit is 3mm (direct to the CPU) and 1.5mm (shield plate)
[Android Head-Units] sniclman:
Shield plate is soldered to the board, board take part of temperature from CPU and deliver it to the shield plate. Without thermal pad on shield plate will get very similar result. But it is better than nothing :-).

What do you mean "bad software" for BT?
[Android Head-Units] marioti:
I see the same situation in my unit. Annother bug in software
[Android Head-Units] marioti:
There are other problems eg. with bt, and here we talked about it elier.

On your picture cleary see the bt chip, which can serve at least double connection in the same time, but there are many problems with that,
[Android Head-Units] Clyde72:
@Hammelo as you have the same 4/32 HU as I do it is more likely that you have also fake 12 android, you can check it with https://play.google.com/store/apps/details?id=ru.andr7e.deviceinfohw

after some further testing I think the HU doesn't support speed volume control so there is nothing that can be adjusted
[Android Head-Units] blue_one:
I haven't tried this myself yet but this should what you are looking for: https://play.google.com/store/apps/....musiccontrollerServiceVerEngFree&hl=en&gl=US
[Android Head-Units] Hammelo:
I have already tried this app. It doesn't work on the device. The system does not allow the speakers to be panned up and down
[Android Head-Units] Vėžys:
Maybe who knows how to connect this device to a pc and write firmware?

I tried get root, but something goes wrong and now device not working
[Android Head-Units] blue_one:
I´ve tried to connect it with different usb cables but without any success.
[Android Head-Units] Vėžys:
I tried it too, but I think a special tool is needed. Similar to Rockchip soc- Rk Dev tools, or Ac8227- SP Flashtool.

Need to find out what kind of tool working with our soc.

I asked my seller, but he pretends not to understand what I want😁.

Try to ask your seller
[Android Head-Units] entoto:
Thank you for sharing
[Android Head-Units] janolelapin:
Hi, Which seller exactly sold you the radio.

I asked Ossuret about the firmware "2022.11.26_v1.12", but Ossuret spoke only "https://jitufirmware1128.oss-eu-central-1.aliyuncs.com/update.zip"
[Android Head-Units] blue_one:
It is “Car Android Europe Store“
[Android Head-Units] janolelapin:
I have the S8 AI AHD1

Thanks' a lot.
[Android Head-Units] blue_one:
The integrated fan already have died. So I've replaced it with a Sunon MF35101V21000UA99. It's a 1:1 swap and works great.
[Android Head-Units] Clyde72:
That's good to know. Still have to connect the fan here.

Another functional question though. Does the external mic work better than the one build in? As I still have to reopen the middle dashboard I'm wondering if it's worth to install and guide the external mic cord under my steering wheel dash and through my left A style to position it (EU continental, left hand driver's side). Or is it better to leave it as is?

VW OEM mic doesn't work with the HU btw, I had it connected via a self build adapter but it doesn't seem to work. It did neither work with a Pioneer BT unit before that... Allready then I found on a forum that OEM mics have a different impedance & sensitivity and only work with the dedicated OEM units.
[Android Head-Units] entoto:
Do you have the MCU file update ?
[Android Head-Units] entoto:
Do you have the MCU update file?
[Android Head-Units] blue_one:
The update.zip includes both Android and mcu update
[Android Head-Units] entoto:
Thank you very much for your reply
[Android Head-Units] blue_one:
Hi, my oem mic doesn't work also. I have no idea why. It's powered and wired correctly. So I stay with the built in mic till I find a better solution. Anyway the built in mic works fine for Google assistant but the call quality is sluggish.
[Android Head-Units] Clyde72:
Thank you. Google Assistance seems to work but still Google speach recognition and Dutch are not optimal.

Calling is a disaster, very muffled and volume is like I am in the back of a large room, far away from the mic or under a blanket or so...

I asked the seller and volume or sensitivity can not be adjusted for the mic + if the external mic that came with the HU is connected internal one is switched off. So I will disconnect the OEM again I guess and see it that improves things.

Enjoy Xmas and all btw.
[Android Head-Units] Clyde72:
After reinstalling/adjustments I found out now that internal mic volume can simply be adjusted with the phyiscal volume knob (my model HU has this) while mic is in use (tested with an recording app).

If this works during calls will have to see along the way but I guess it will.
[Android Head-Units] Clyde72:
I was allready wondering when you said your unit was S9, because there are only S1 till S8 and yours 4/64 seems to be an S5... (see first post in this thread a.o.)
[Android Head-Units] AlphaRadioDog:
Ah, I found a large S9 sticker with a bar code on the back so I assumed, and we know what happens when we assume :)

It was not until I got it to power on that I was able to locate the ROCO k706 information which lead me here.
[Android Head-Units] Clyde72:
I can't confirm but I can see that with the current harness their is no way to connect your canbus box to the F port and have some basic canbus read outs... and as said don't expect all the wizzles and bells the ad tries to sell... it is even that poor that I disconnected canbus on my unit for my car. The canbus thingie doesn't bring any added value for me (VW Golf MK V "United" serie)
[Android Head-Units] AlphaRadioDog:
The Ford Sync 3 system uses CANBUS extensively and mine has a switch control panel that has less than 8 wires on it for all of those buttons that appear on the bezel as in the ad. Radio, Map, Nav, Media, AC control etc. The AC control ONLY displays on the stock HU screen for time, compass, temp, fan speed setting etc.. The Droid App has a learn function select function via picture and press the button you want to operate that function. So for my vehicle I hope to get much more from it. The stock radio loses GPS and costs more than a replacement unit to update from 2011. So here I am trying to go Droid Dashboard.
[Android Head-Units] Clyde72:
Can't tell how it will perform for a Ford F150 but an VW RNS 510 unit would also have cost me three of four times the price. I'm pleased with the unit and I know I bought some China stuff which almost always comes with surprises.

I hope you get it sorted out with the seller...
[Android Head-Units] Clyde72:
Also thank @nyp42 who has better tech knowledge on canbus etc than me
[Android Head-Units] nyp42:
@AlphaRadioDog if all you needed was Accessory (ACC), dash lights (ILL), and reverse detect then wiring it the way I described (red/orange from HU to red/orange from CAN bus decoder) should work. If you want any chance at all for the heater controls to work then you will need those wires from the CAN bus decoder to the 8-pin connector on the head unit.

Do lower trim level of that vehicle have standard controls for heater (ie. not through head unit)? As I understand it VW does something different with CAN bus for heater controls so that why it doesn't work for @Clyde72 and I but it may work for you.
[Android Head-Units] nyp42:
Had a chat with the vendor yesterday.
[Android Head-Units] Clyde72:
It is possible that only VAG cars will be affected, so far no other car make owners reported on climate control not working with the units
[Android Head-Units] Clyde72:
Which version(s) update they've sent you are they referring to?
[Android Head-Units] nyp42:
They sent me 1216/1228. I didn't post them as the have been posted already IIRC.
[Android Head-Units] Clyde72:
Was just to know the version(s). Will test OTA ounce I have it updated too then...
[Android Head-Units] nyp42:
I tried it an nothing happened. Maybe different over 4G.
[Android Head-Units] DCB103:
Mine does not show on screen Citroen C4 and also noticed more peops have the problems (different makes). I know it should work as with a simplesoft canbus decoder on another unit it worked. Problem with those units are they are produced by Chinese mainly for china marked and the Citroen C4 for example is just a little different in China as in NL or Europe. To many different decoders all with their own issues. I know if I buy a raise PSA-RZ-01 (now have a HiWorld) it should work but loose my steering control and some others, while the PSA-RZ-15 or 65 have other issues. It also greatly depends on the androids version/unit and how it communicates. Some have nice apps that show car info in a graphic way and like this unit it is a simple text screen . So unfortunately it looks a little like hit or miss :)
[Android Head-Units] Clyde72:
Ok, another tought, I noticed downloading fw files or system update files from jitu servers takes its time on my pc (fast ethernet over utp) so stable OTA over hotspot could be a challenge I guess...

Btw, I found some info why the unit doesn't connect to hotspot over 5Ghz. It seems I would need a 5G capable phone for that...
[Android Head-Units] nyp42:
I've noticed that when I start downloading from jitu website it is really slow, like 8 hours to complete slow. If I start another download of the same file it downloads in about 20 minutes. I then just cancel the original download and wait for the one in 20 minutes.

Calling 5.8GHZ wifi 5G is confusing because of 5G (5th generation) cellular also existing. But yeah features tend to work better when your equipment supports them. lol
[Android Head-Units] blue_one:
Nah, 5G mobile network has nothing to do with 5G Wi-Fi network. You can set the hotspot of the head unit to 2.4G or 5G as you like. It's inside the hidden android settings.
[Android Head-Units] nyp42:
I understand that they are different. The confusing part is people referring to both technologies as 5G is my point.

Any tips on finding and accessing those hidden android settings. It's driving my crazy because all the instructions I find on how do things refer to menus that don't exist.
[Android Head-Units] blue_one:
It's Chinese marketing... 😉
[Android Head-Units] nyp42:
On a completely different note @blue_one . The instructions on one of the more recent update files uploaded here said that it auto loads on boot up. Is that not important in the effort to access recovery mode? Or at least being able to recover unbootable devices?
[Android Head-Units] MauriBixio:
Inherent BT chip on board:

I'm sure it can handle dual connections, and Vgate sure works with this Sx unit, I use it without any problems.

If it doesn't work it could be caused by the OBD app you use for your car.

In any case, with Torque app it works, or better, ALWAYS manages to connect, after that if Torque (a very generic app) is unable to read the data from your car it's another thing, but the BT connection with the interface must always take place without problems ( at least with BT OBD Vgate interface).

Test:

BEFORE using the "dedicated" OBD app for your car, run Torque app (naturally first you must select your BT interface in Torque Settings), then close Torque, and launch the app dedicated to your car. It connects now ?

Reason: I noticed that FEW OBD apps NO open the flow from the BT chip radio to between interface \car.

Torque app with this test only serves as a trigger to open the data flow between BT radio and your dedicated OBD app.
[Android Head-Units] MauriBixio:
I want to put the pad attached ONLY in the CPU area up to contact with the radio case (I don't think it is necessary to also put it on the thin metal protection, soldered onto the PCB).

So, ok to do this the 3mm thick "F" version, from this Ali link?

https://it.aliexpress.com/item/1005005621925362.html?spm=a2g0o.cart.0.0.316c18fcUjdRIc&mp=1&gatewayAdapt=glo2ita
[Android Head-Units] Juniorakos:
i have similar issue on S5 it just volume down by itself randomly. if i turn off side buttons it works well.so its like somehome side led buttons touching byitself ? or probably any issue on canbus box or canbus setup or maybe any cable from behind touching? :/ i've seen one more member had same issue but noone reply to him.
[Android Head-Units] Zsocaa:
Hi All!

I have the device shown in the picture. My question is, is it possible to root it? I looked for it in the forum, but I couldn't find it. Also, I have a problem with my microphone, the other party can't hear my speech in some calls. Is there anything you can do with this?

Thx! Zsolti
[Android Head-Units] Pitada72:
What kind of modding have you done? I am using the external mic in the same place as yours and it has a great capture, but I am getting also to much noise in between...
[Android Head-Units] Astralech:
In the photo you have 6/128, it is S7.
[Android Head-Units] marioti:
i have the same info on label sticker but actually it is 8GB, at least every "device info app" say so
[Android Head-Units] marioti:
My advice is to check it manually. It can be there a different gap measurement between cpu and housing (eg. place there a piece of plasticine and close the housing, then open it and carefully peel off it - you can use some plastic tape between plasticine, just for a easier peel offing . In my case it was 1,3mm, but i add there 1,8mm thermopad
[Android Head-Units] marioti:
have you disable an internal mic? we talked about it many many times here
[Android Head-Units] sniclman:
Brand Thermalright will be good.
[Android Head-Units] sniclman:
6GB integrated in CPU chip + 2GB separated chip. I saw that in "HW info" or some similar app.
[Android Head-Units] Clyde72:
You should find my post with pictures on modding the OEM VW mic (casing) if you search on my name + "mic". Just losely placing the external mic capsule in the overhead fixture will not optimally eliminate noise.

And as Marioti mentionned internal mic should indeed be disabled also. I personnally just unsoldered & removed that internal mic capsule. Better go over all the "mic" posts to see the steps when choosing for external mic usage.
[Android Head-Units] Clyde72:
@Pitada72

Find that post on VW mic here:

https://xdaforums.com/t/general-dis...d-read-first-post-first.4525675/post-88501331
[Android Head-Units] MauriBixio:
@Pitada72

https://xdaforums.com/t/general-dis...rst-post-first.4525675/page-164#post-88772111
[Android Head-Units] Pitada72:
I thought that solution was only if you have low sound capture...
[Android Head-Units] Juniorakos:
noone has fix about this ? u all repeated same issues that already has been answer previously..but on this issue there is not answer.. -_-
[Android Head-Units] marioti:
Both mic (interior and exterior) are in the same line, so if you have both, they interferr,
[Android Head-Units] MauriBixio:
I appreciate your advice, but I didn't want to dismantle the radio from the car twice to position the thermopad...the left PCBs should all be the same, so the distance between the CPU and the case is the same.

In your case this distance was 1.3mm and you used a 1.8mm thermopad, right?

I don't understand why then another user wrote that the distance was 3mm (with S8 radio).

Which is the right one?
[Android Head-Units] marioti:
Yes, i'm sure i was talked about it here, and also Aanton measured it and if I remember it was 1,6mm gap

Look here and his previous posts

https://xdaforums.com/t/general-dis...d-read-first-post-first.4525675/post-88251113
[Android Head-Units] MauriBixio:
Thanks for the info.

If the CPU to case gap is 1.6mm I think I will buy a 2mm thick thermopad, it should be fine too.

What do you think?
[Android Head-Units] marioti:
it depends on which thermopad you buy. the higher thermo conductivity, the pad are harder. So if you want 2mm thick, then buy no higher than 6W/mK. But IMO 1,8mm is ok.
[Android Head-Units] piticu2015:
Guys super strange problem on my S2 with the left touch buttons which are illuminated. The light is gone! They are still working but without light! Any ideas ?

//Figured out the problem is was not an issue it was a "driver" issue :) The car is not used by a single driver and in 99.9% of time the light switch of the car is on "automatic" but today was left on "off". I noticed that also the illuminated steering wheel buttons were off . The touch buttons from the left side are synchronized through canbus so if the lights are put to off these buttons are turned off as long as the light is not set to ON or Automatic.
[Android Head-Units] sniclman:
That's because not every unit has the same back plate/case. Some units have different button layout, different cooling, etc. But the board is the same (in most cases).
[Android Head-Units] marioti:
Well he can always buy a different thickness small pieces of thermopads. From other project i had already 1.5mm, and 0.5 and 0.2, and 0.3. And all was 6W/mK, So here i use 1,5 + 0,3 together (all thise cost me ca. 3.5usd)

But if the pad is soft enought it can be 2mm in one piece
[Android Head-Units] marioti:
Well he can always buy a different small pieces if thermopads. From other project i had already 1.5mm, and 0.5 and 0.2, and 0.3. And all was 6W/mK, So here i use 1,5 + 0,3 together (all thise cost me ca. 3.5usd). They are really sticky to eachother, so don't worry.

But if the pad is soft enought it can be 2mm in one piece