yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] Aaantonn:
I show for those who are interested in the cooling system and explain how to make it normal! Who likes to be clever do not comment.

See photos. The case of the radio is indeed a cooling system, but it is made incorrectly, so it is useless!

In the first photo, there is a protrusion that connects the aluminum case and the processor, but it is not smooth, rough, which already makes everything useless! And most importantly, it does not reach the processor! And there is not enough thermal paste in such a thickness to fix it, the thermal paste will all drain!

The only way to measure the distance between the processors and the protrusion was this - I glued a piece of plasticine to the processor and closed the case tightly, opened it, measured it and got 1.3 mm. This is an unrealistically large gap for something to work. There was no thermal paste on the processor! And I don’t believe that someone has it on this model, I reviewed a bunch of videos and there is no thermal paste anywhere, only there is thermal paste on the amplifier, but more on that later!

I came up with the only solution to fix this problem. I found copper plates on aliexpress, although it needs to be cut a little. The plates are of any thickness and can be perfectly matched!

I ordered plates with a thickness of 0.8-1mm., Thermal paste Arctic MX-4 8g and hot melt adhesive AG TERMOGLUE 10G, thermal pad 0.5mm-1mm. I’ll clean the protrusion on the case with fine sandpaper, glue the plate on the hot melt adhesive, press it hard until it dries so that there is a minimum gap, and then I’ll put a 0.5 mm thermal pad on the processor and close it.

There are two such protrusions on the case, the second one, I assume, is located on the memory, in this place there is a metal overlay and it is not visible what is under it. Here is the same story and a 1mm thick gap, plus the protrusion falls exactly on the barcode sticker! Which makes it completely useless! I took off the stickers. In general, you need to do everything the same as with the processor.

Now about the amplifier! It also does not fit tightly to the body, just take the caliper and measure it! Thermal paste certainly helps, but it's not enough. Plus, the thermal paste that is applied, of unknown quality, has a white color. I will redo the amplifier and post photos with the process. I've seen repairmen doing it, which I think is a good idea.

Ultimate thought!!! Perhaps you don’t need to do all this, the radio tape recorder will work great anyway, but it’s interesting to me and I’ll do it for myself.

I know how this whole cooling system works on a computer, and in the form as it is done here, etc., your computer will work for 5 minutes before overheating and emergency shutdown!
[Android Head-Units] Aaantonn:
Regarding the cooling fan.

This is a program from the update - 99% does not work, I checked each output with a multimeter, apparently indeed, this is only for new boards. I installed a Sunon MF35101V1-1000U-A99 DC 12V fan, I hope this is not a fake, but it works loudly, you can hear the whistle very much. I disconnected it and will definitely make it turn on at full power only at 60 degrees. Above in the branch they laid out a thermal relay for the fan, it most likely does not fit, since it has a minimum power higher than the fan power, but I'll try. In any case, I will make the fan work from 40-60 degrees at half power, and at 60 at full power, until it cools down to 40 degrees, in principle it is not difficult.
[Android Head-Units] Aaantonn:
Regarding the noise during the operation of the radio. I wrote to the seller, he sent me a photo with a request to remove this resistance, I carefully cut it off with a utility knife and it really helped! The noise is gone, the quality of the sound seems to have not deteriorated. I think everyone has noise, but few people pay attention to it. I haven’t told my wife yet, she didn’t notice)
[Android Head-Units] Aaantonn:
It is better to comment this photo, which component is located where and check whether it is worth redoing or not. I will remake and post the result, but I don’t understand where the amplifier is, where is the memory, where is the processor in the photo! Checked Aida 64
[Android Head-Units] marioti:
good job. I'll check the gap between processor and the case, and most likely will do the same as you.

i'm sure your way is better, but i just thinking, maybe it'll be good enough to put there a thermopads, eg. on processor 1,5mm foam thermopad,

About the fan, you bought a V1 version. it have 10000rmp. The Blue One talking about V2 version which have 7500rpm. Personaly i'll be searhing a V3 Version, which have 500rmp, and i have hope it'll be quiet enought.
[Android Head-Units] Aaantonn:
With a thermal pad, the idea is super, and cheaper and easier. I just need thermal paste for a laptop and hot glue to auto-shutdown on the fan, so I decided this. But it turned out that a plastic part needs a thermal pad, not a paste, since it compensates for the expansion when heated and will not damage the chip! So I'll just put a plate smaller than 0.8-1mm, and a 5mm thermal pad on the chip. I learn from mistakes.

Take the thermal pad a little thicker than the gap so that it is pressed evenly, since the protrusion from the case is very uneven.

Good firm Arctic Thermopad
[Android Head-Units] Sama41:
Hello, i have a Hizpo head unit with a 8667Q processor.

My MCU is G6-TS.210818(VHD-XHS-N9).

But the hardware seems to be similar of the S8 model.

Can i update my head unit with the last firmware 2023.02.03_v3.25 here ?

I downloaded it but it's a zip format and i need a .bin format to update i think... I'm a little lost and help can be very appreciated :)

Thanks

[EDIT]: I added my hardware info on the screenshot
[Android Head-Units] blue_one:
That'sa completely different processor. I would ask the seller for a new firmware instead of installing this one.
[Android Head-Units] Sama41:
Thanks for your answer,

So the processor is important for the firmware?

Hizpo vendor don't answer now. And i can't find firmware on XDA for this head unit (maybe i'm the only customer with this type of head unit lol).

I was hoping that the firmwares offered here might work.
[Android Head-Units] blue_one:
Yes the firmware is compiled for specific processor(s). It could be that your processor is supported by this firmware but you can easily brick your unit with the wrong firmware.
[Android Head-Units] Meteordust:
Hi,

I tested the V2-1000 fan, 7500 rpm, but not fitted yet in my HU (waiting for better GPS receiver to arrive), on 12 volt supply it makes on a meter distance not so much sound, closer it sounds like a buzzing mosquito flying around your ear :oops:.

Don't know yet how much sound it makes when fitted with some air-flow resistance and inside dashboard, @blue_one already mentioned he hardly hears it, and when car is running or radio/ music on you probably will not hear it at all.

When I look at my temperature reading when inside car temperature is around 22 degrees, the CPU is around 50-60 degrees, this is with only radio on and stock fan is continuously on.

The V3 fan has drastically lower airflow, so have doubt if that will cool enough for your needs.

Question about GPS signal, GPS works very accurate in navigation, on my unit signal strength of 5-6 satellites are green, but only around 30 to 40 % signal strength, going to fit an better receiver to see if it improves. Have my receiver fitted in free open space, so nothing blocking the signal, like steel just above it.

BTW mostly it shows 10 to 16 satellites but most of them with poor connection.

Anyone already tried other receiver?, ordered myself now a 38 dBi receiver and lets see how that works.
[Android Head-Units] blue_one:
I use the OEM gps receiver that was already built in my car. The reception is ok but I don't get more than 60% signal strength. My smartphone get better signals inside my car.
[Android Head-Units] Meteordust:
🤣 I mentioned myself the gps tweak.

BTW put the port myself now on 7276.

Investigated other firmware from other Chinese brands, they use mostly supl.google.com and port 7276, both 7275 and 7276 work....what I understood is that port 7276 is secure...it does not speed up the gps fix.

For instance the FYT units has the same GPS structure regarding config.xml, gps-debug.xml,supl.xml and certicate file...but is standard already set to google/ 7276.

Within 30 to 60 sec my unit find the gps fix, so no real problem...the stock Jitu gps receiver is a cheap one, the same as the fan I assume.

Will let know what strenght I get with a hopefully better gps receiver...and maybe quicker gps fix....but have no problem with navigation..just want the maximum out of this unit.
[Android Head-Units] blue_one:
Haha yea, ive realised that after my post and deleted that tweak part. :D
[Android Head-Units] wassolls:
How? For me it works by accident (even wirelessly) but I did not understand how to make it work on purpose up to now. What were your findings? Could you help?

Best

Stephan
[Android Head-Units] Max643:
Hi, I also have a problem with the GPS strength signal, mostly around 30 %, and accuracy cca 7 m. Navigation working but sometimes get crazy. What better GPS receiver did you buy?
[Android Head-Units] Meteordust:
Did you do the GPS tweak mentioned on first page? change host to supl.google.com/ port 7275 or 7276?

Inaccurate time also no good for GPS positions.

https://xdaforums.com/t/...uis-7862s-not-fyt-based.4525675/post-88112693

My Sygic navi also went crazy sometimes, didn't know what direction I was driving, now works fine, also compass of my Agama launcher is stable, even with the stock receiver coming with the unit.

Bought a 38 dBi on AliExpress, search topgnss, around 26 euro, not the cheapest, expect it next week to come in.

First have to test it to claim it works better, hopefully double the strength, it should, but Chinese promises o_O .

Don't put it directly behind a steel bar or plate.
[Android Head-Units] Braco&lo:
Hi, I just received my unit . Installed it put the brightness on everything but I still find that the brightness is to low. I cant find display settings in factory settings. I played with VCOM and AVDD settings but didnt see a change in brightness or contrast .Can someone help me please
[Android Head-Units] theAtotheG:
I tried to look through the thread but I may have missed it.

How do you remove the screen? Mine was defective and they sent me a new one, but I can’t figure out how to get it out of the housing.
[Android Head-Units] blue_one:
I have the rotating screen so its housing is completely different. Usually the plastic frame is just clipped together and can be opened with gently force.
[Android Head-Units] Meteordust:
Assume you had warranty? if they can ship the screen, why not a total new unit...what supplier you had?

Hopefully you can take it apart without damage and it is just clicked together, because of the several spots that seems to be for some screws to be fitted.
[Android Head-Units] theAtotheG:
I bought my unit from Hizpo. I had only had it for a month before the screen died. So when I contacted them I expected they would send a whole new unit. Instead they sent just the screen, no instructions of any kind.

It took awhile to even hear back from them, so I filed a dispute with PayPal and they refunded the entire price. Suddenly once I opened the dispute I heard from them again and they asked to remove the dispute. I don’t think I’ll get much more support from them. Maybe I’ll look at a different unit. @blue_one Have you looked at the Mekede M6?
[Android Head-Units] blue_one:
Yea i like the specs of the M6 pro plus but that costs a lot more than the S8. Well at least at what i have paid. So i will stay with the S8 now and try to modify the hard- and software to my needs.
[Android Head-Units] yoyo linuxien:
Hi, did anyone figure out how to uninstall Toppal and replace it with Google Assistant using Hey Google ? (S3)
[Android Head-Units] Vėžys:
I bought Mekede M500, because i bricked this device😁. And he's better than this misunderstanding, there is also a lot of information on the 4Pda forum.
[Android Head-Units] isash:
What's better? Music, radio plays. Navigation works. The rear camera is working. TPMS starts. What else does? Watch TV on the go? Play games? This is silly
[Android Head-Units] blue_one:
Why can't we keep the language clean and friendly? Everyone can buy whatever he wants. And if this unit fits your needs it does not mean it fits everyone else needs too. To call this silly is just rude.

In fact this device (Jitu QF001) and the Mekede M5/600 (FYT) are completely different platforms. Different hardware, different firmware. For the FYT platform there are more active developers and a bigger community. So besides the pure functionalities this could be leading a buying decision too.

As I stated in the first post of this thread this head unit is a good bang for the buck but that does not mean that we could not talk about alternatives.
[Android Head-Units] isash:
I absolutely agree with you. I had FIT. Easier for modifications. This is both a plus and a minus.
[Android Head-Units] Meteordust:
Discussions are always okay, as long things not getting too personal.

Everybody has his needs, threads like this are to share ideas, solve problems and help each other, like solving the microphone, better fan and control.

And yes, this unit works for me also very good, during driving I need navigation, music, radio and have a continuous dashcam.

Not living in my car so not having so much further needs, for the 150 USD I'm satisfied, as long as it will work, durability is still the question mark.

But that are my needs, others wants to modify, play around, custom rom's or whatever they want, from them we also learn and problems getting solved.

Respect each other.

Also looked into the threads of other unit's, but read it yourself, that unit's also have their specific flaws, nothing is perfect, but I own this unit, with each other help we can get it as nearly perfect as it can be.

For me this unit didn't show any failure the last 2 months, no freezes or what so ever, very satisfied (y)

Or maybe I need to buy a Mercedes-AMG SL 63, with already a beautiful HU fitted, what you think ;):p
[Android Head-Units] ribasman:
Read this one https://xdaforums.com/t/hizpo-3c-roco-k706-root-and-general-help.4376445/page-2
[Android Head-Units] ilya.georgia:
Hi everyone! Maybe someone faced a similar problem. When the device is running after some time, the AUX application is spontaneously activated. The screen turns off and the message "No signal" appears (picture attached). The rear view camera works without problems and no video input devices are connected anymore. If the application is closed manually, after a while it will be activated again. What could be the problem? Thank you!
[Android Head-Units] Clyde72:
Toppal can be uninstalled but as soon as you do an firmware update it will be reinstalled. Toppal can not be fully replaced by Google Assistant with Voice Activation. The unit, and Toppal, work with TXZ service (speech) running in the background and Google Assistant confilcts with TXZ service so GA voice activation isn't possible.
[Android Head-Units] popamor:
@Clyde72 how did you uninstall Toppal? I hate that cute robot. hahaha
[Android Head-Units] blue_one:
I use this tool: https://xdaforums.com/t/tool-adb-appcontrol-1-7-9-ultimate-app-manager-debloat-tool-tweaks.4147837/

Just connect via wireless adb to the ip address of your head unit on port 9876.

If you don't have a pc or laptop in reach of your head unit you can also use a wireless adb app on your smartphone instead.
[Android Head-Units] Clyde72:
I uninstalled it once (and got it back with updating firmware...) via settings, apps, stop and remove. Since it got reinstalled I just deactivated it... It is a persistant little robot.

I didn't know the debloat app, you could try that, maybe it will stay away then, even with firmware updates...
[Android Head-Units] Clyde72:
In fact, why would anybody want to stress about the Google voice activation :)😂
[Android Head-Units] zerebede:
You have to slide the metal part and open it to insert SIM. There you can see arrows indicating the slide position.
[Android Head-Units] zerebede:
In the RCA/MIC harness there is a one way plug (wires black/blue) for the fan. It works very good in automatic by the app
[Android Head-Units] Clyde72:
What unit do you have? And what mobo version? Only very recent units have automated fan control.
[Android Head-Units] zerebede:
On the S5 fan works fine on the plug
[Android Head-Units] zerebede:
Yep that`s it. Starts over 50 and stops 49. Works less time than a variable fan, and avoid sucking dust all the time. There`s always 12V and the app does the switch.
[Android Head-Units] zerebede:
I have a S5 (04012023_v3.06_01) 1280x720
[Android Head-Units] Clyde72:
I asked for the motherboard (mobo) version...

I have an S4 with fan but fan doesn't work automatically like with the majority of us
[Android Head-Units] zerebede:
I don`t know my (mobo) version but i`ll try to know it. The unit arrived 2 days ago and is not fitted in car yet.
[Android Head-Units] zerebede:
Question: Your equipment has the plug to connect the fan (RCA/MIC harness) ??. If so, is there 12V DC ?. if so the problem may be in the app.
[Android Head-Units] zerebede:
Here S5 S9005F
[Android Head-Units] zerebede:
Ahhhh that`s the problem, cause here the fan does the sound of a real fan.
[Android Head-Units] zerebede:
By default yhe unit come with 7 day sleep. I changed mine for 2 hours to avoid the drain. So if you get out of the car the unit keep on the sleep for 2 hours waiting for the key on the car, if no key after 2 hours the unit power off to avoid drain. after those 2 hours it will boot from the bootlogo after key.
[Android Head-Units] zerebede:
Carletter works on both, wireless and wired on S5.
[Android Head-Units] zerebede:
I have same issue even on my Samsung Note 10. I don`t use TPMS on my unit and i use TPMS to wake up GA. It can be programed on one of the left switches
[Android Head-Units] zerebede:
I have the same problem speacialy on google apps after sleeping. I`m going to try whitelist those apps.
[Android Head-Units] Clyde72:
If you've just received the unit you probably have the latter mobo version with auto fan functionality, no need to dissassemble or such...
[Android Head-Units] Clyde72:
Yes, I have the plug and I should measure it's voltage but my unit is in the car. VW model unit so can't slide it out in 1 2 3, unit is bolted in the center dash and not in a sledge or so...

Though I suspect it to be 12V constant with my unit as the fan is always on.

With yours probably there is some additional circuitry with maybe a temp sensor + relais. So when threshold of 50 degrees is reached relais is operated and you get 12V so the fan works (is life). When temp is lower no power to the fan at all. Not to do with app (software) but with hardware/circuitry I guess.
[Android Head-Units] zerebede:
I did the HOME touch for wake up GA. soft touch go home long touch wake GA. I´m on S5
[Android Head-Units] zerebede:
This app was made for an older version of android says google. Not available for the device.
[Android Head-Units] zerebede:
The 12V is always there bro. If you see closer it does signal to extra amp, so there is always 12V. the sensing of temperature is made by the app from the android as the code 332211. I can send you my app if you want to try.
[Android Head-Units] marioti:
It's a little annoyng me this half glare touch screen, Especially to compare with original car unit

So I made up my self to scan this screen protector (with some ruler on scanning plate). Then, i'll make a project in CAD, and sent it to my supplier, to cut a anti glare foil.

So, anyone have a original screen protector from ossuret S-version? and can make for me a scan like i mention above? I would be very grateful. Unfortunatly i rid out mine screen protector already.

i talkin about this unit for eg. https://pl.aliexpress.com/item/1005...t_main.18.613e1c249BOz5u&gatewayAdapt=glo2pol
[Android Head-Units] zerebede:
Yes, settings--->voice--->default voice---> google
[Android Head-Units] zerebede:
The app acts as a switch on the negative wire and this way there will be always 12V on the positive wire to the amplifier
[Android Head-Units] zerebede:
You are missing the power to the amplifier. You can stop a lamp by the positive and there`s no power, but if you put the switch on the negative wire there`s always power on the positive and the lamp is off.
[Android Head-Units] zerebede:
PS: I uninstalled the ToppaI voice
[Android Head-Units] Meteordust:
Somebody mentioned that the F on the end, yours S9005F, means that it has the voltage fan control, so fan app will work on your unit if that info was right.
[Android Head-Units] zerebede:
Well done !!!.

Yes, and the fan is working fine. 50C starts 49C stops. But the voltage control is made on the same place of the extra amplifier. So the control is made by software (the app), because there have to be always 12V to the amplifier. How ?? . Simple, the app open and close the negative wire.
[Android Head-Units] zerebede:
One thing i notice is that if you do the code again it reverts. Am i right ??.
[Android Head-Units] Meteordust:
With temperature controls the Chinese switching negative wires somehow...this when I look at some electric wire diagrams of thermostats in general.

You the first with the fan control working on this thread I heard off (y)

And yes long sleeping mode is causing Google related apps crashing, that was my experience, a total reboot fixes the problem till the next crash, but better sleeping mode off, it starts quick enough.

Using Sygic as navi, Sygic remembers my trip after reboot, I heard Maps is not, so each time cold start is not a big issue for me.
[Android Head-Units] Clyde72:
I have the app but it doesn't do anything automated, my unit is older (before 22.12.2022). We discussed the fan & fan app question allready several times since beginning December. Also the code for the app's (diss)apearing act.

I appreciate your support attempt but you are the first one here with an working fan control. But your unit is very recent, after 22.12.2022.

There must be additional components in your unit as compared to ours. A component acting as an switch opening or closing the circuit when a certain temp (threshold) is sensed. This implies a.o. an active component capable of sensing the hardware temp and act on it.

A piece of software (app e.g.) itself cannot sense temp nor switch a circuit nor anything. Software on its own is dumb. It can only communicate with active electronic components (aka hardware).
[Android Head-Units] zerebede:
When you do 332211 what you see ??. The same the app see. Try to power a 12V fan and then cut the negative wire and then with multimeter measure the positive. Keep in mind if you have a sensor to the fan when the fan is off the amplifier will have no signal too. So the chinesse did it the easier way. we are talking about DC not AC.
[Android Head-Units] Clyde72:
In most cases yes. Though not tested all codes as I don't speak chinese (cf. some popups)
[Android Head-Units] Clyde72:
If you feel like it draw a full electronic shematic of your mother board and I will compare it with my unit.

Off course it is DC, it's electronics powered from a battery (the car's)
[Android Head-Units] amesino:
hello forum I have a hizpo s8 8gb ram, I wanted to ask one thing I use Bluetooth music and every time I stop if the application is not on the screen the music does not continue, I have to start the application again, how do I keep it working in background??
[Android Head-Units] Clyde72:
No idea in fact as I don't use bluetooth. FM, streaming music via apps (with wifi connected over hotspot) or Flac files from Udisk yes. And these all continue in the background while e.g. navigating. So I guess it should work in the background when simply streaming over bluetooth.

Did you look in the firmware thread yet? And the release notes for major updates? Maybe your issue is listed and an update can solve it... Otherwise contact Hizpo with the issue you are facing.