yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] Clyde72:
Spikes are normal, but it always drops back to an average. I monitored & recorded temp for some time when driving and spikes occur only when e.g. opening nav & starting to navigate. Once navigating it goes back to average. All without even having the fan connected average is 41-43°C during all drives, even the longer ones. This is peanuts for an ARM architecture.

But I don't have camera's, and other imo futile wistles and bells who needs to be monitored by or control the unit - canbus is disconnected - so my unit gets hardly stressed or under heavy load. Nav & (streaming) music mainly when driving.

"The most dangerous thing with a moving car is the nut behind the steering wheel."
[Android Head-Units] marioti:
sorry for me. No offence.

On the thermopad and also on cooper plate, i have a spikes of temp. but they aren't big. The max. as i noticed, was ca. 65°C.

So if Clyde72 have average 41-43°C , it is strange to me that i have 47-48°C in idle, without anny app in background.

On march 7, i even wrote that with thermopad i have 38-41°C

Definetley somethings went wrong in my case.

What are the temps. in your HU?
[Android Head-Units] Aaantonn:
I listen to music loudly, and bass is strong, so after a trip for 20-30 minutes I always have a fan running, only from Spotify music. after 30 minutes of work 45-55 degrees. But even after two hours with a navigator and music it is quiet, just 45-55 degrees. I check through AIDA 64. I set the fan to overclock from 50-70 degrees to the maximum, so the fan runs at minimum speed.

I don't even pay attention to temperature fluctuations. Since I work at a laptop, where the processor is as much as possible in the ass of the world and jumps when working with different programs, this is the norm.
[Android Head-Units] Clyde72:
No idea if something is wrong, my unit is still stock + built in between climatronic & top vent ducts with airco always on when driving
[Android Head-Units] Aaantonn:
Perhaps nothing needs to be done. It’s just that I have an old version and the auto-on of the fan did not work at 50 degrees, although I didn’t try it on the new version of the MCU before the rework, perhaps the fan program would have worked. Since I dismantled the radio by installing a thermal sensor circuit, at the same time I made the cooling of the processor and power amplifier. I must say right away that it is not worth doing the cooling of the power amplifier, since the alteration is very complicated, just replace it with normal thermal paste. I didn’t post the power amp rework, I thought someone wouldn’t want to bother like that. And anyone can cool the processor and it helps not to overheat.

But I'm not saying that your radio will not work anyway! Perhaps everything will be fine and so, and alterations are not needed! I just like to disassemble something new and pick until I break it)
[Android Head-Units] Clyde72:
I had another look. Don't worry as I was wrong, 47-48°C idle is not abnormal when driving, short temp spikes to 52-53°C when launching FM or nav and ounce running dropping quickly back to idle temp mid 40ties...
[Android Head-Units] marioti:
I understand you. These temperature are ok. for the cpu,

but in my case idle temps. are higher ca 8-10°C, and all just because i added a copper plate instead thermopad.

Anyway, i'm planning to turn back to thermopad and will do more tests
[Android Head-Units] Meteordust:
This almost looks like that you don't have sufficient amount of cooling of the fan, due inside dashboard temperature or other reason like a poor fan, mean the copper plate on fan/ HU housing side must have more cooling capacity then cpu heating up the copper plate. It seems you "store" a lot of the heat in the copper plate and not cooling the copper plate enough, due heattransfer threw paste, copper, paste to housing.

Also only use very little amount of thermopaste.

I didn't do anything with my cpu, thermopad is still fiited from stock, in idle with Agama launcher with GPS speed in the middle of the screen, after some driving my cpu is around 41-45 degrees.

With radio on, Sygic nav on it is around 45-50 degrees, this with an inside car temperature around 23 degrees.

Mentioned before that after I putted the V2 Sunon 7500 rpm fan with 68 Ohm resistor (14 volt became 12.5 volt, I measured it) my average cpu temperature dropped almost 10 degrees, compared to the stock poor fan that was fitted.

Fitted in dashboard with engine off, no interior ventilation on, yes I hear the fan when I focus on it, like a very soft airflow sound.

Myself don't like the idea of switching on/ off the fan, Sunon says it will do 70000 hours, we all already took notice that the unit becomes hot around the area of the power plug, amplifier.

So like the idea of continious airflow in the HU housing and pushing the heat away form the cpu.

BTW I have the Jitu Opel S8 HU (8SOPEL7100B), not the universal S8.
[Android Head-Units] Clyde72:
I personally still plan on doing it that way (always on) but my Sunon fan wasn't delivered with my last electronics components order. It is in backorder. Once it arrives I only plan additionally the front mic mod.

I think you are correct that the copper plate keeps heat trapped in stead of it being dissipated.
[Android Head-Units] Meteordust:
Happily I ordered two, so have one for spare if my mounted one will fail...

Well I did the sticky tape thing on the flatcable for the mic, needed microscope glasses to fit the tape,

but done 🤓

This also works very well with external mic with an A-Pillar mounting, but I know you have a different situation with mounting the cable, it easilly done in my Opel..
[Android Head-Units] Aaantonn:
How can a copper plate retain heat and transfer worse than thermal pads? A copper plate is glued onto the chips instead of a radiator, very small, but it saves the chip. Copper has a hundred times greater thermal conductivity. This is a normal temperature and there is no tragedy. My temperature is always 45-55. Another question is that between the copper plate and the case,, I wrote that the best option is a thermal pad with a phase transition, and not glue of unknown origin. But I have a thermal interface left from a laptop.

What makes you think the temperature is high? We have already found out that three people have the same temperature. And how can the processor work and not heat up? This is the normal operation of the processor. I'll attach a screenshot of a laptop to you in single browser mode, only what size processor in a laptop plus two large fans, and you are worried about the radio. Everything with the radio will be fine. You have the highest temperature from the power booster, and at the same time, at 70 degrees, according to the manufacturer, it loses most of the power, but for some reason no one is worried about this. But the processor has only an operating temperature of -20 to +75 degrees, and the peaks can generally be 90 degrees. I would advise you to simply not pay attention until the processor goes into throttling and the radio tape recorder starts to blunt when overheated.
[Android Head-Units] Aaantonn:
Acer Predator laptop with two large fans in Browsing mode, the fans run at 2500 rpm. And in the radio there is one tiny and plastic case. Don't pay attention to the temperature at all.
[Android Head-Units] Meteordust:
It not really about what is acceptable regarding the working temperature of our CPU, but the question why @marioti has a situation that he gets higher temperatures with a copper plate.

@marioti

There is a difference between thermopad to housing with lets say 6 W/mk to housing, or thermopaste to copper to thermopaste to housing.

Most thermopaste has same heatransfer as a thermopad and a copper plate absorbs the heat in between of them.

Two times of thermopaste between cpu, copper and housing makes it worse then only a pad it seems, and higher peak temperatures.

There is no sufficient cooling capacity between all of them in his situation, otherwise @marioti would have much lower temperatures compared with only the stock thermopad fitted.

Also the copper plate must be fitted with some pushing force between the CPU/ housing with very thin layer of thermopaste, but that we can not create, we will bend the mainboard.

Copper also has a specific heat capacity (J/K.kg), mean you need the right cooling capacity to cool copper down 1 degree, the thermopaste between the copper and housing is blocking the cooling down, with respect to all other believers :giggle:.

If I would make a modification for better cooling, I would make a hole like 12x12 mm in the housing on the spot where the CPU is fitted, stick a small 12x12 mm heatsink on the CPU and mount the fan a little higher in the housing.

Didn't measure the CPU in size, so could be 10x10, 12x12 or 14x14 mm.

And of course fix the heatsink that it will not drop of the CPU.

But the original situation makes it for me totally useless to fit anything, I watched many times my CPU temperatures, during driving, load radio, using navigation and never really saw it high above 50 degrees, in idle it jumps between 41-43 degrees on my HU.
[Android Head-Units] marioti:
I don't know what to say.

Thermopad, in idle, no app in background (like before), after ca. 20min

Only when an app starts (eg. google maps navigation), the temp peaks to max 62°C (as i notice), and then dropping down quickly max 46-47°C

One more thing, the cpu temp in fan app, show temporarily different to real cpu temp. See the second pic. It is just example, but you can see in fan app 49°C, and the system shows 51°C
[Android Head-Units] Aaantonn:
You are comparing the CPU temperatures of Clyde and Marioti. Clyde's post says S4, and he has S8. I think it has a uis7862s 2GHz processor that runs at high temperatures, it's not even a uis78621 1.8 GHz processor. Mariote has one of the top processors on the market today and runs at higher temperatures than usual. Here is a photo with the temperature of my system before installing the copper plate, just with the manitol turned on for some time without heavy load and without a bunch of background programs. I put a copper plate, specially checked the temperature yesterday and it is 55-60 degrees throughout the day with the music turned on. Processor uis7862s. It is not correct to equate two different processors.

I already told you that in my CORE I7 8th laptop, this is not a simple processor that does not work on thermal paste, it only needs a phase transition thermal pad, any paste drains in 4 days from high temperatures. The same thing here, these are completely different temperatures and you should not worry about them until the radio freezes.

For information, I’ll say that you can’t press the processor at all, soldering points can fly off when the temperature rises. To prevent this from happening, you need a 0.2 mm thermal pad on the processor and on top of the copper plate, 0.4 mm comes out, or just a 1.5 mm thermal pad without a plate. Most likely, for this reason, it was installed initially, but my radio tape recorder did not have anything. Just because my radio had a gap of 1.4mm, without thermal pads, I decided to make a copper plate, but in the post above I clarified that you can just use a thermal pad if you don’t want to bother. But a copper plate can't be worse if done right.
[Android Head-Units] Clyde72:
I also notice the app showing 12 V dc which also doesn't match reality when having the car motor running.

And possibly that overvoltage is the reason why @blue_one had his stock fan dying in record time to begin with... (reported months & months ago meanwhile).

So we agreed a possible workable solution is by using a resistor so the fan can stay on at all times making sure the cpu o.a. won't ever overheat & keeping the fan alive with normal usage. Plus reducing fan noise in the process. Minor mod & kiss proof (keep it simple & stupid). Thx @Meteordust here for the testing etc. btw.

I personally don't plan on putting heavy load on cpu & gpu by e.g. watching high res (streaming) video while driving. Not even low res, I plan on concentrating on the road and traffic as it is supposed to when driving a car etc 😉😅. That I find at times exiting enough with all those nuts thinking they are the kings (of the road a.o.).
[Android Head-Units] Meteordust:
You......I assume me...

My point is from my experience after using this device for 3 months now, there is no need at all to do anything about the cooling of the CPU...my S8 has not high temperatures or spikes ,..and a copper plate after you mentioned it first I thought yes a good idea, but after reading @marioti tests and some thinking it is clear for me that after all it will not be my choice.

It creates more contact surfaces to transport the heat threw.

But it is a free world, everbody can make choices he want .
[Android Head-Units] Barykelo:
I don't know if this has already been addressed here, but on my Hizpo S5 4/64, TXZ regularly stops working for me every time I start android and then connect to wifi. The seller sent me the new firmware from 3/2023, but the message still appears. Don't know what to do with it? Thank you
[Android Head-Units] carmenred_141:
does this forum include the EKIY unit that is sold trying to figure out which model is which KK5,T7 T900 or are they all the same just sold by different vendors, they all have the same 7862(a or s) chipset but have different ICs 7388 7838 and 7850?

Are they all the same?
[Android Head-Units] Clyde72:
This issue was not reported yet. Can you translate what the popup message is saying in English?

As for the firmware file link, if you could share them in the firmware thread that would be cool. https://xdaforums.com/t/firmware-qf...s-with-uis-7862a-7862s-not-fyt-based.4541261/
[Android Head-Units] Aaantonn:
I already wrote about 5 times that I don’t see the need to redo something until your radio freezes. But I will correct you. Thermal paste MX-4 has a thermal conductivity of 8.5 W / mK, not 4. And the most important point is that the thermal paste is smeared with a microlayer and has crazy thermal conductivity, and the thermal pad is 1.5 mm thick, and you need to multiply the heat loss by the thickness. With such a thickness, this is an extreme option. Thermal pads are placed on chips in laptops only because it is possible to destroy the chip with a plate. There is a thermal interface, here it is with a thermal conductivity of 12.5 for a thickness of 0.2 mm and a composition like thick thermal paste. But no one has surpassed the thermal paste yet. And the copper plate is only worth it to transfer heat to the body, and not dissipate. To dissipate it must be open. I will say one thing, the thermal pad will save you just because you don’t load the radio tape recorder, if so then you don’t need it either, there won’t be much difference. And the tests are all nonsense, conduct them at least in AIDE64, just turn on the processor test and you will understand what it is capable of and the extreme temperature before throttling. Understand that a copper plate is placed specifically on video cards in mining, since there is nothing more than transferring such an amount of energy, it cannot be bad. You simply do not correctly draw conclusions on temperatures, comparing different processors, that and I threw off a photo of the operation of the radio without a load of 55 degrees before the alteration, 28-38 could only be when turned on. And you argue. Okay, as I understand it is better to close this topic, but I wrote a lot))
[Android Head-Units] Clyde72:
I tried to deciphire it. I see "TXZOverseasOTA" but in general online (Over The Air) upgrading doesn't work. And I guess that is what TXZ (system) service is trying to do as soon as you connect to wifi...

Maybe check factory settings to see if you can disable this OTA update setting. Also check with Toppal AI settings, as it depends on TXZ service...
[Android Head-Units] Meteordust:
Tried to explain the higher temperature of @marioti, think it is a plausible explonation, if you disagree, fine, no problem, if I'm wrong also fine.

Cheers mate 👍
[Android Head-Units] blue_one:
You could try to disable or uninstall that app with this tool https://adbappcontrol.com/en/
[Android Head-Units] Clyde72:
As far as I know TXZ is a system app & service. It's its speech service that prevents GA voice activation from working a.o.
[Android Head-Units] Barykelo:
unfortunately there is no such setting
[Android Head-Units] xdsbx:
Try to disable headlight detection. On some devices it helps
[Android Head-Units] And-S:
When connecting any usb keyboard, something strange happens: one press of a key gives 2 characters. Always. Exactly 2. Any keyboard (tested 5 keyboards, 2 wired and 3 wireless).

Is this the case for everyone, or am I the only one lucky?

Is there anything we can do about it?
[Android Head-Units] Astralech:
This is exactly the case with the temperature of the enclosure, it is heated by the amplifier.

I made such a modernization and it's good, and the fan is needed for this added radiator.
[Android Head-Units] Aaantonn:
I did exactly the same. Barely grinded the inner plate, it's hard)
[Android Head-Units] Barykelo:
thank you but it doesn't work
[Android Head-Units] Barykelo:
Does LOUDNESS work for you with the firmware from 6/3/2023? The switch works but nothing happens. (S5 Hizpo)
[Android Head-Units] Clyde72:
Just checked, doesn't seem to do much but it never did actually
[Android Head-Units] Clyde72:
@Barykelo

I've just checked the active services and TXZOverseasOTA is now also listed as a sperate service. Probably added by some firmware update along the road. Did not see it last time I checked. Service can only be stopped but maybe it is an hidden app that can be removed with the ADB tool recently shared. No idea on its role/function though...

While checking HU wasn't connected to internet BTW so it just starts with the system I guess.

PS: I know, my car & dash needs cleaning 🫣
[Android Head-Units] Barykelo:
in my original firmware from 9.1.2023 it was a very significant change
[Android Head-Units] Barykelo:
I wrote to the seller, so hopefully they will solve it
[Android Head-Units] Clyde72:
Please share if they know a solution and/or its function
[Android Head-Units] Meteordust:
When put the Sunon fan, don't put that metal plate back that protects the stock fan...it makes a lot of additional sound when fitted that plate back.. @blue_one already mentioned that many threads ago.
[Android Head-Units] Clyde72:
Possibly, I only tested it briefly in the beginning but never kept it active... just tested it briefly again when checking services over an hour ago + I updated to 06 03 fw yesterday
[Android Head-Units] Clyde72:
Yup, now you mention it he did. Thx. But I was referring to copper plate on cpu...

As for the fan, since the Sunon is in back order I was thinking of maybe putting a resistor on the stock fan & removing cover plate. Maybe it was so noisy because running in overdrive due to overvoltage. What maybe also killed it. Worth a try I guess...
[Android Head-Units] Aaantonn:
I have such nonsense all the time after the update, I need to turn off and turn on the touch volume buttons through the service menu, and then restart the radio and everything works. Also, every time you need to turn on the detection of headlights.
[Android Head-Units] Meteordust:
Tested the fan with and without that cover plate...lots more high frequency sound with the coverplate.

That Sunon fan has bigger fan blades, so looks like more airfow and pressure....search all over the internet to find the specs of that stock fan but no information could I find.

Resistor on stockfan.....don't know what that will do with CPU temp.

My experience is that with the Sunon fan, my cpu temperature dropped with 8 to 10 degrees compared to stock without a resistor.

I have a S8, canbus, front camera in loop recording, radio on and Sygic nav on, average temp. is 50 degrees..during driving, car inside 23 degrees

Copperplate..😂 no was reaction on the fan..
[Android Head-Units] AlphaRadioDog:
I went to Just Answers and they supplied the entire wiring schematics with the connector pin outs for my F150
[Android Head-Units] AlphaRadioDog:
When you are trying access external storage devices the file system type of that device may or may not recognized by the current Operating System. As you noticed, the 'other unit' was able to recognize NTFS, but not the new unit. It all depends on how the operating system (Android) was installed and with what 'features'
[Android Head-Units] Clyde72:
That I don't know but should a least limit power to the fan (12,5V in stead of full 14V) so it doesn't die quickly like the one from blue_one.
[Android Head-Units] Dekdek1:
Hi guys.. Im thinking of buying this from Hizpo.

https://a.aliexpress.com/_mNjuDYS

What do you think about this unit having experience using it. I see there is quite some issues in this thread about this unit. Would you still recommend it? Thxxxxx
[Android Head-Units] Clandaries:
I buyed the S8 from Hizpo.

The wiring for my car is wrong. I could not use the wheel keys for Bluetooth.

DAB usb dongles are not working. Reception is very poor.

I would not buy it again.

But you can return it for free 15 days.
[Android Head-Units] Dekdek1:
Awhhh.. Such a bad experience.. What reception do u mean? Wifi? 4g? Or radio? I appreciate your input
[Android Head-Units] Clandaries:
The communication DAB+ dongle and USB from the head unit seems to be bad.

I have tested 3 different DAB dongels.

90% of the time i listen to DAB so it is very important to me.

FM radio is ok.
[Android Head-Units] Dekdek1:
What about the software experience and OS? Any lag or crash?
[Android Head-Units] Clandaries:
Sometimes it is lagging yes. But i will test after a firmware reset.

I also had the problem that it sometimes it goes to stanby and sometimes it starts from 0, cold boot.

Maybe my unit is just faulty.

Now i have installed the Teyes CC3 and i am very happy atm.
[Android Head-Units] Meteordust:
Hi,

@Dekdek1

I will recieve later this week a DAB+ dongle so will have tested that, together with a sharkfin antenna.

@Clandaries, what you mean with poor reception, that looks more like a problem with the antenna or the DAB USB stick then the HU itself.

I can't confirm lagging and restarting by itself, my HU is working very stable, had over the last 3 months no problem at all, never had a crash.

Cold start I use because booting is very quick, sleepmode caused Google app related problem in earlier firmware on my HU, don't know how that works now.

After modify the microphone and the cooling fan, I'm more then happy with this unit, also claimed money back, it is not Android 12, but Android 10, so only paid 100 Euro at the end :D

I have a S8, the Opel version, different front and 1024x600 display, Canbus, steeringwheel buttons works fine in my case.

Also realize that it is a cheap HU, don't have experience with other HU for the same money, so can't say if you can buy for the same money a better one, just that I'm more then happy with my HU, it does what I need, but that is a personal experience, Sygic navigation also works stable.

We had montly firmware updates so far, never had really firmware related problems myself, I'm not using Android Auto, just bluetooth for making phonecalls and using my phones hotspot for internet, have no 4G connection.
[Android Head-Units] Clandaries:
No. My antenna is 100% ok. I have tested it with my smartphone. Installed DAB-Z and got 120 Stations.

With the same Dongels in the car.

With the Hizpo S8 i get 40 Stations and bad reception. So my Dongels and the antenna are 100% ok.

Now i have installed the CC3 and also get 120 stations in the car. So it must be the Hizpo S8.

I have tested everything i can test before i wrote here :)

And it is laggin everytime i open an app.

But like i said, i will do a reset and see what happens.
[Android Head-Units] Meteordust:
You would think that reception of stations is done by the DAB+ stick and antenna.

I believe you but it is a weird situiation, what is disturbing the signal reception that is related to the S8, usb voltage?

Will let you know when I received my DAB+ dongle and how it works on my S8.