yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] Gemmini:
Ok, so I am having an issue with USB. I originally purchased a cheaper android radio quad-core with little ram it was sluggish and had bad sound distortion etc. One thing I could do was plug my NTFS hard drive and have my movie library with no concerns. I purchased the S5 HU and I cannot for the life of me get it to read my Drive! I can use my DVR camera and USB thumb drives just not the HD! It obviously is possible as I could do it with the cheaper unit. Also when in-car settings and trying to change the boot logo it will not look at the USB stick and find the files I see just the android logo and when I click update it says complete but shows no options for other files or drive!! Any help would be appreciated!

4+64GB Android 12 Car Stereo For Ford F-150 F150 2009-2014 GPS Carplay Radio RDS | eBay

Find many great new & used options and get the best deals for 4+64GB Android 12 Car Stereo For Ford F-150 F150 2009-2014 GPS Carplay Radio RDS at the best online prices at eBay! Free shipping for many products!

www.ebay.ca

this is the radio
[Android Head-Units] chasers36:
Ok, so I was able to do a factory reset, and it restored my USB functionality. Weird that it did that though, I must have messed up the boot animation somehow, won't be doing that again until i can get the latest update for the firmware and mcu. I've contacted my eBay seller to see if they will provide me with links to the updates. I've attached a pic of my headunit info, if someone can point me to a confirmed working firmware and mcu update, that'd be great. If not I'll wait to see what the seller says.
[Android Head-Units] AlphaRadioDog:
I have found references to the 2011 King Ranch w Nav & Sony having a different harness config so ...?
[Android Head-Units] snaker12:
Hello Guys. When your iphone connects through bluetooth to the radio unit does the carletter app connects automatically or you should open the carletter app yourself in order to connect. Because in my case i must open the carletter app and only then the iphone connects to the carletter app.
[Android Head-Units] xdsbx:
Yesterday i connected a CanBus box to my Radio. Seller told me there is no can bus for my car ( Toyota Prius) available, so i searched and bought one from Aliexpress on Mekede store. Iv integrated it in the low wiring hairness. Now i have dynamic lines in the rear view camera, hybrid battery information and open dor warnings in this Radio, maybe there are more features.
[Android Head-Units] And-S:
Greetings.

Applications that do not have a built-in file manager cannot function properly, since when accessing memory they use the system application "files", which is not present in this system. I tried to install it as a regular apk, but it didn't want to work (gives an error). Has anyone found a way out of this situation?
[Android Head-Units] marioti:
Have you try to upgrade Software and MCU
[Android Head-Units] And-S:
Yes, I am currently using the system version (and MCU) 20230207
[Android Head-Units] ADRez:
I have an S5 and quite happy with it, but android auto dark mode doesn't trigger when I turn lights on. Does anybody know how to fix it? When I turn car lights on the unit button lights also turn on, so that's not a canbus problem
[Android Head-Units] blue_one:
Hi, I don't use AA but you can set the dark mode to car or smartphone dependent inside the developers options in the android auto app on your smartphone.
[Android Head-Units] Elrathias:
Hello!

Got a Hizpo S5 unit, ie Shenzhen jitu technology S101005 and i have problems with amplifier and audio output. Have it hooked up to original car harness, car has amplifier standard and expects low level output from stereo w differential signaling, i think output is speaker level differential.

Anyway

Static noise is introduced somewhere pre-amplifier circuit (TDA7851) in 14khz-20khz range, built in automute stops this ergo source is inside HU not car harness or amp.

Saw the picture on page 2 where one resistor is to be desoldered from board, this seems likely - has anyone confirmed what the circuit diagram is and what this resistor does?

Also - if radio app is not working, change area to usa and then back to wherever you are and it starts working again.
[Android Head-Units] ADRez:
Yes, I know but it doesn't work either way. I have it set to auto but it works the same as if light theme is selected
[Android Head-Units] Elrathias:
Amplifier in spec up to 105'c, however almost all ARM cortex-series SOC have a design temperature of 85'C - any higher and it will enable power management routines and lower performance until it stayts at 85'C
[Android Head-Units] jagd71:
I removed the resistor you mention, as Hizpo support told me to do, and all static background noise is gone. It worked perfectly. Just pressing on one side of the resistor (it is very very small) with some sharp tool makes the resistor jump, no need to desolder.
[Android Head-Units] Elrathias:
Great, do you have pictures?
[Android Head-Units] snaker12:
Guys about the resistor and what is fixed when you remove it...

I made some tests and that is my conclusion.

For those who have the 4g model, when 4g reception is at very low quality and only then, the static background noise gets very loud comming from the car speakers! This is completely unexeptable and a very big issue. When you have strong good 4g reception the noise is almost unnoticeable.

Removing the resistor fixed the issue of the car speakers and even though when you have bad 4g reception there is no static noise comming from car speakers... But there is still one issue that persists!

I also made the mic fix with the tape and i use a very good sony external mic which is ALSO making static noise when i am during calls. You cannot hear it but the listener hears it and it is very annoying. Sometimes it dissaperas sometimes is very loud and annoying and it is exactly the same static noise that the speakers did when the resistor was in its place. You can check it and confirm. And i think that my theory about the 4g reception is also the same about the microphone static noise. Also can someone that doesnt have the 4g model confirm if there is the same static noise? Because i am pretty sure this is 4g model issue.
[Android Head-Units] Aaantonn:
Why such conclusions?) I removed this resistor because there was noise when turning on any music from the Internet, phone, radio, flash drive! And everywhere the noise was the same! The seller said what to do

Whether the Internet exists or not.
[Android Head-Units] snaker12:
In my case it was not like that.

The noise was not there all the time. The static noise can happen on google maps, when listening to music, when watching youtube as long as the 4g is enabled and has poor reception. I came to that conclusion because when i heared that static noise quickly i scrolled down from the top and disabled the 4g connection tab and after about 5 seconds the static noise was gone! I also tried the same test during my phone calls but i have not done extensive tests. I will do tests with more conversations and ask the listeners every time. Can someone that still has the resistor and has the same problem with static noise do my test and report back? Thanks.
[Android Head-Units] amesino:
Hello friend, I have a hizpo s8 and I have 4g noise when there is bad reception, can you give me the link where to remove the resistance, thanks, greetings
[Android Head-Units] snaker12:
This is the resistor but as i said the static noise will remain at phone calls (to the listener side) when reception is bad and it is very dissapointing to disable the 4g every time that you must make a phone call. There must be also a fix about that. Hope someone will find out the way to fix that too. Many thanks to the great community we have here that shared the image with us!
[Android Head-Units] Aaantonn:
I stabbed him with a utility knife
[Android Head-Units] azizi_ppc:
I attach a photo and a video of how to remove the resistor. I got it from my seller from China. My radio has this sound problem too. Today I will remove this resistor and see if it helps. I have the top 8/128GB model with extras like a gsm modem.
[Android Head-Units] marioti:
weird, but i don't have this resistor
[Android Head-Units] azizi_ppc:
The sound is ok?
[Android Head-Units] marioti:
who knows :) i'm still in a dispute with ossuret and still waiting for correct power cable adapter
[Android Head-Units] azizi_ppc:
I just removed the resistor and I no longer have noise, the radio plays very well. The resistor was enough to slightly pry and it fell off.
[Android Head-Units] Elrathias:
Well ... Duh, this is clearly not the same mainboard as the hizpo/shenzhen jitu s-series.
[Android Head-Units] marioti:
i bought it from ossuret. i use Jitu software to upgrade. On the MB there is no version print. only on the cpu section is this label
[Android Head-Units] Elrathias:
Have you tried to identify the board visually? Do you have pictures of both sides of the board?

To me this looks like a topway TS10 board, not a Jitu S-series.

This product is no longer available.

This product is no longer available.

m.alibaba.com
[Android Head-Units] Elrathias:
Glorious, thank you!

Is indeed jitu s-series, blue fuse confirms. Will try this today!
[Android Head-Units] marioti:
that's not this. look
[Android Head-Units] Elrathias:
Hmm.

Okay took me 20 minutes, its still not a Jitu board, however, it IS a FYTtek board: https://m.alibaba.com/product/1600336920798/FYT-7862-chip-8-core-Android.html

Ergo, you are in wrong thread and nothing here will be correct for your ossuret unit. Go to the FYT-thread, i hope you find help! https://xdaforums.com/t/general-fyt...unisoc-ums512-q-a-mods-tips-firmware.4396339/
[Android Head-Units] marioti:
i think, that's not this too.

This thread is about QF001 (ROCO K706).

So, QF001 you can see on my sticker near the cpu. Also, system data info on my HU says it's ROCO K706.

Also i successfully upgrade the system from this thread

https://xdaforums.com/t/firmware-qf...-uis-7862a-7862s-not-fyt-based.4541261/page-4

IMO only the MB (in my HU) is a some kind of upgrade,

​
[Android Head-Units] Elrathias:
Software says what software is programmed to say. The QF001 mainboard does not have the third antenna stub on left side, the one covered in black plastic.

Also, Jitu makes only green PCB. Topway and FYT has black or blue boards iirc.

Ergo, wrong sticker, or wrong software, or both.
[Android Head-Units] Astralech:
This is exactly the board like ours, only corrected without a resistor and with a dark varnish.

Ours also have a place for the WI-FI antenna socket, only the cable is soldered. This one has a socket and a mini antenna screwed on. There's the next version and that's it.
[Android Head-Units] hsi1:
Hi, all

Please prompt, how connect to interner over bluetooth on phone

thanks

s3/32
[Android Head-Units] Elrathias:
You are partly correct, i am misstaken - looked up hd version of fyttek L826 board which the front looked like, and i am wrong. The fyttek backside is way better design with reinforced amp-speaker paths.

It is however not the exact same board, and i think i can visually see why there is noise in @marioti unit. Amplifier pin 2 and 4 look to be shorted out. This might be source of noise since its an autogain feedback to protect speakers from overvoltage and burn out.

This is fun, never dug this deep into pcb design before.

@marioti can you download spectdroid app and post screenshot of waterfall diagram highlighted for frequency of your noise?
[Android Head-Units] Elrathias:
I dont think you can, you have to connect via wifi internet shareing
[Android Head-Units] hsi1:
because bluetooth 5.0 (speed up 3Mbt/s) ?

(rtl8761 on this car radio)

need LAN Access Profile (LAP)
[Android Head-Units] Elrathias:
Yes but Android Auto subroutines lock out all other traffic due to wireless functionality. You can however have both android auto wifi coupling AND internet sharing via wifi simultaneously
[Android Head-Units] nurex:
my display panel does not dims when I turn on the headlights. Is there an additional setting? Headlight detection is activated.

i have the S6
[Android Head-Units] Elrathias:
Have you asked the seller?
[Android Head-Units] Elrathias:
This fix got rid of the loud oscillations in 14khz-20khz range, but left a pretty quiet high pitched whine in the 26khz-28khz. Immense improvment, highly recommended.
[Android Head-Units] Aaantonn:
The limit of human hearing is 20,000! What kind of nonsense? It's a joke?🤣
[Android Head-Units] Meteordust:
Now I understand why I didn't had a clue you all talking about, on my age and due some ear damage my hearing not going higher then 9 kHz, if this load oscillations are indeed from 14 to 20 kHz, I'm not hearing it..:D, but will annoy the wife and kid with it...:ROFLMAO:

Nonsense..?, not totally but @Elrathias must have special ears :alien:, only under ideal laboratory conditions, humans (kids) can hear sound as low as 12 Hz and as high as 28 kHz, this from scientific research, so not limited to 20 kHz, so keep the facts clear :geek:

Also the older you get, you will lose the higher kHz more and more...
[Android Head-Units] marioti:
i'm 44 now, and i hear 23000 hz. Why i know it? This frequency show me spectroid app. The sound is generated by a unit that I have mounted in the engine compartment and it is against of a martens. Where I live, we have a lot of problems with these animals. BTW, I know the ultrasonics don't work against them, but this unit have also kind of a electric fence (shepherd), and this works good.
[Android Head-Units] Clyde72:
The human audible spectrum is said to be 20Hz-20Khz indeed but this is a theoretical norm and would maybe apply to the majority of perfectly healthy human toddlers sitting in a soundproof chamber. Reality is more like @Meteordust says.

Before hifi DIN standardisation the norm was even more like 40hz-16Khz. Still capable of provoking eargasms if the equipment and setup is off good manufacture.

A very important criteria for a good amplification design is it being dead silent fyi. Not a thing one can expect from an overgrown phablet with noisy circuitry (microphonics).
[Android Head-Units] Meteordust:
😂 Was little joking around..coz of the statement that was made that there is a limit.

And yes amplifiers from good quality are dead silent and the one that mentioned the 24-28 kHz probably uses an oscillator, points out that removing the resistor does more than only good, so not a joke.

Like you said in our car it is not really an issue and seems dependend on HU unit, asked my son and he doesn't hear noise.

@marioti , consider yourself lucky with having that kind of good hearing over 40.

Myself do yearly test for my work and only hear 9 kHz and under....

I'm over 50, but due work as an engineer, engine rooms, I damaged my hearings a little bit.
[Android Head-Units] Clyde72:
Sorry to learn about your hearing loss but I know lots of people working in entertainment/PA business allready being partly deaf in their 40ties...

I will also remove the resistor but it is a pitty we do not have shematics. Just by curiousity.

As I look at the pics seems the resistor is connected to the smd cap underneath and also connected to the component in parallel alongside the cap. So removing the resistor is disabling some filter it seems. No deal disabling that filter if it only introduces noise. Could indeed be an oscillating circuit...

I should get my ears checked also, I notice I begin missing on some high details even with my best hifi setups... I also hear the background noise on the HU but it isn't really bothering me. Music on the road is only entertainment for me, the real joy I get from my home hifi setups or going to live performances occassionally. Then I am more critical (+focussed).
[Android Head-Units] Elrathias:
Yeah well ive lived with hearing noise and sounds way above most other peoples ability all my life. Those cat-scare noisethings people put up make me nauseous...

Anyway, phone cant measure the noise thats there, but its still audible. Just barely shows up in video recordings.

Heres a waterfall graph of pre mod atleast, ive highlighted it since the automute kicks in after a second or so. (Cars idling, therefore the low freq **** thats constant)

I can make an equal graph post mod, but since phone can barely record it, it wont show up on the graph.
[Android Head-Units] Elrathias:
Been wondering about that aswell, its kinda hard to trace the circuitry but its trace leads into some weird front-mounted components i cant really clearly identify. Here, ive marked all but 1 of the endpoints of that resistors rear facing pcb trace.
[Android Head-Units] Astralech:
I think that's the connection:
[Android Head-Units] Elrathias:
Top image is directly behind the DSP chip, bottom image labeled amp or dsp is about 4mm off from the main socket pins, and goes through directly under the big ass 6800uF cap, so i dont think it connects to the amp anyway.

Alrighty then mr audio engineer, what mic would be best suited for picking up very high frequency noise? I dont exactly have a fking oscilloscope so i cant hook that up to the speaker leads - im just going by "ear".
[Android Head-Units] Meteordust:
Don't take it too serious mate ...it is all about genetics...what you mention is just the average.

We talked about distorted sounds right?

Many speakers on the market with far beyond the 20 kHz range, but that's not the point.

He just found out that with removing the resistor also a higher kHz of distortion gets away.

But maybe i'm not clever enough 🫣🤓
[Android Head-Units] Michalski124:
Hello guys, could you please make dump of MCU from S4?? Thanks
[Android Head-Units] Astralech:
So the upper picture is the power line, among others, of the DSP pin 40 (DVDD1), the recommended voltage is 3.3V.

I did not take a photo when I had the power capacitor removed, I would know what this resistor connects.
[Android Head-Units] And-S:
First you need to manually set the brightness levels when the headlights are on and when the headlights are off.

1. Turn on the headlights. Set the desired (low) brightness level.

2. Turn off the headlights. Set the desired (high) brightness level.

3. Turn on the headlights. Get "automatic" brightness reduction.

4. Be happy, smile, drink coffee.

It works like this.
[Android Head-Units] blue_one:
First step is to check if the device detects the headlight. If so the backlight of the sidebar buttons will turn on with the headlight. Than follow this: https://xdaforums.com/t/general-dis...d-read-first-post-first.4525675/post-88309753

If not your device does not detect the headlight status which can be caused by wrong wiring or can bus settings.
[Android Head-Units] And-S:
For those who did not understand what I wrote here: - try installing, for example, the GoogleDrive application and try to download something from your cloud to your device. Everything will become clear to you.

All this nonsense happens due to the absence of the DocumentsUI system application in the firmware. I could have tried to integrate it into the system, but I was too lazy to mess with ADB and the terminal. I accidentally came across a wonderful FM Mixplorer, which is built on the same framework as the aforementioned DocumentsUI (Storage Acces Framework). As a result, only one extremely stubborn application continues to require DocumentsUI, all the others are happy to use Mixplorer instead of the poor DocumentsUI. However, it will probably be necessary to return this escaped piece of Android to its place. Later.
[Android Head-Units] Frantsson:
Hello everyone,

I have a microphone problem. The built-in mic is, as we all know, pretty lame so I connected an external one. That one worked a little better but it stopped working in a very weird way. While testing the microphone (with the voice recording app) I left the radio on and the recording (of the music from the radio) was excellent (even too good considering how the mic was recording voice until then). After that, I couldn't use it (the mic) anymore. It is completely dead for phone calls and for the sound recording app. The only thing it catches now is music playing from the head unit. I guess that some settings changed automatically and now it is completely "deaf" for any sound except the unit itself. I can't get it to work, and google and youtube don't have an answer to my problem. I tried unplugging it, reboot then plugging it back in but nothing seems to help. Can anyone, please, tell me how to get the mic to work again or tell me if a factory reset would bring the head unit to the state where I can make the external mic functional again without losing all preinstalled apps? My model is Ossuret S4 installed in Mazda 3. Details are visible in the picture.

Thanks in advance
[Android Head-Units] Clandaries:
I had this with my Hizpo S8.

I tried to install the Google telephone app.

I installed my SIM-card and made a call via telephone app.

It worked, the telepgone rang (home) but i could not hear my voice after the call on the call recorder.

And the microphone was dead.

I had to reboot the head unit. After this my mic was good again.
[Android Head-Units] Clyde72:
Though it is not always a solution in stead of doing a factory reset you could also try updating firmware & mcu as there are later versions available for S4 anyhow. Maybe this will fix it. Search the firmware thread for the files. Be sure to choose the option not to delete user data in upgrade settings. How to can also be found in the general thread here.

Edit https://xdaforums.com/t/firmware-qf...62a-7862s-not-fyt-based.4541261/post-88232993
[Android Head-Units] Frantsson:
Thank you. The unit is already up to date. I did update a few days ago. the picture I have attached is 2 weeks old. I wrote to Ossuret store also and now I'm waiting for their reply. I'll post it here if I ever get it.
[Android Head-Units] marioti:
anyone can explain me what happend, because it is against the logic. I puted a cooper plate on cpu, i used mx4 paste (just i got it at home). And the temps are 46-48 in idle. erlier i had there a thermopad 6w/mk, and in the same condition the temps were 39-43. So I dissasembly it again, but everything look ok, the paste stick right. so I clean it, put a thermo paste again (on both side of cooper plate ofcourse). But the results are the same, pretty high temp in idle
[Android Head-Units] azizi_ppc:
I have a questions:

1) Is it possible to restore notifications as it is in android phones?

2) Are apps like facebook or messenger not working for you either? The radio freezes when I try to start it.

3) Is it possible to root android?
[Android Head-Units] Aaantonn:
There is logic. Now the processor and case have a common temperature, the case heats up from the power amplifier, it gets extra +10, but this operating temperature is completely normal. The operating temperature of the processor is up to about 70-80 degrees. The temperature has become higher, but now it is stable and there are no sharp jumps to 85-90 degrees and the processor will not go into throttling. You want stability, not low temperatures. My fan turns on at about 55 degrees and works up to 45, but I put the sensor on the case, near the copper plate, and therefore I see that the approximately set fan shutdown temperature is the same as the processor. Of course, there can be jumps, but they are not so high and frequent . I hope not a harsh answer, did not offend?))
[Android Head-Units] popamor:
@Aaantonn, I like your logic and explanation.

@marioti , are you seeing temp spikes? I'm almost at the verge of breaking down and taking the unit off of the car and doing some of the mods that you guys have done.

I am truly thankful for this thread.