yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] MauriBixio:
By technical stuff of Hizpo:

"If the system displays the notification that the MCU version is incorrect, enter the factory settings and enter the code 774411, then go back and proceed to install the update."

but..i'm honestly not sure if this can work or not and if it can be useful for you to know in your current condition,i'm just writing what they told me some time back...so,if you want to try it,your own risk .

Now you can't even do a factory reset of the unit?
[Android Head-Units] Johan0503:
I can't install the firmware, MCU doesn't give me notification.

But if it also works for firmware its worth a try.
[Android Head-Units] MauriBixio:
Same my current firmware and MCU...but

there are various problems with this firmware and as many have written here on the forum, there are bugs and it is not stable.

I will definitely downgrade or try the more recent "QF001.20230414.142325" even if there are some recent posts from some users who write that it is not free from bugs too ... indeed, anyone who uses it, please. write feedback on the new latest firmware: "QF001.20230414.142325"

By forum user: https://drive.google.com/file/d/1FZQrgEzZpk1IaPeXLdYOJkw4kL3DpCYd/view?usp=sharing
[Android Head-Units] balkanera:
Dsp Settings Change nothing any firmware update same Problem anybody else same dsp setting Problems. ? Only Equalizer Change Sound
[Android Head-Units] xdsbx:
Today installed an amplifier from AliExpress. Sound is now pretty loud. Amp
[Android Head-Units] MauriBixio:
I think many are starting to write that DSP does nothing... but are we sure it works and isn't just a "fake" for marketing? :unsure:

Let's hope not...we await more feedback!
[Android Head-Units] MauriBixio:
Link?
[Android Head-Units] Clyde72:
I guessed so and that is why you probably got the checksum fails twice. 2803 was buggy, so you bypassed checksum then and then you've updated from an known buggy fw again with bypassing checksum so I'm not surprised you still experience errors. Could also be that the next fw update you will still have errors, certainly if you will again have a checksum fail and bypass it.

Do you see the pattern building? You didn't solve a problem by bypasing checksum, you've created one by doing so
[Android Head-Units] :
You misunderstood me. I didn't say I missed the checksum. On the contrary. For the 14/04 update to succeed, I had to do this. Because without checksum the update failed.
[Android Head-Units] xdsbx:
€ 26,66 33%OFF | Auto Power Verstärker Auto Stereo Audio Prozessor Verlustfreie 4way Dsp Power Verstärker Lautsprecher Stecker-und-spielen Für Android änderung

https://a.aliexpress.com/_ExmtKBn
[Android Head-Units] :
Someone else posted on the forum to disable the checksum option but not me
[Android Head-Units] MauriBixio:
Thanks, I'll look later. :sneaky:
[Android Head-Units] yoyo linuxien:
Help please
[Android Head-Units] Clyde72:
Wasn't a good idea or good advice whoever who posted it.

Luckily, there is more good advice then bad when one follows or searches & reads the thread wisely.
[Android Head-Units] ronneke65:
Disconnect the power. And plug it in aftershave 30 sec. Worth a try
[Android Head-Units] ronneke65:
After. Sorry
[Android Head-Units] yoyo linuxien:
Already tried it a couple of times without success unfortunately :(
[Android Head-Units] MauriBixio:
Surely you've already tried to press the micro switch for at least 10 seconds to reset (small hole on the radio) but 99 times out of 100 it only restarts, without solving anything, but try...

Unfortunately, if you have the radio in bootloop, you can think of a problem in the OS, and not easy to solve, even more so if it happened for no apparent reason.
[Android Head-Units] ronneke65:
There is a thread on recovery acces.
[Android Head-Units] yoyo linuxien:
Already tried it at least 30 times without any result... Thanks to you and @ronneke65 for trying to help !
[Android Head-Units] Clyde72:
Ok I misunderstood then. I'm human. Sorry hereby. But no matter how you still updated from an known buggy fw so maybe that is why you remain with errors.

You might consider downgrading to a pre 2803 stable version and then update again directly to 1404 from there. Only 10-15 minutes work once you have the files.
[Android Head-Units] popamor:
Here is the recovery post from some time ago. You might want to try it as your last resort. But that helped another person who was stuck with a bricked unit.
[Android Head-Units] yoyo linuxien:
Just tried it without success, maybe the files are different for the S3 version ?
[Android Head-Units] popamor:
You have finished flashing mcu file right, and you are trying to flash in the update.zip?
[Android Head-Units] yoyo linuxien:
Not at all, it happened without doing anything special. It was working yesterday morning and it froze when I started the car going back from work...
[Android Head-Units] MauriBixio:
So to upgrade to Firmware 1404 it is recommended, as in my current case, that I have Firmware buggy 2803 and MCU 0203,downgrade to Firmware stable 20230109 and MCU 20230103 (these were good enough) and ONLY AFTER update to Firmware 1404 and MCU 0203?

Best steps this?

Naturally with checksum option enabled.

If ok, next few days I'll proceed...
[Android Head-Units] :
Okay thanks for the advice. Maybe I'll try it when I have some free time. It's a bit of work because later I have to set everything up again and install the apps.
[Android Head-Units] :
If you do, please let me know if this method helped.
[Android Head-Units] MauriBixio:
The CanMcu version is shown only after installing Firmw. 0414 or you could also see the info on this earlier, e.g. with 0328?

I with current Firmw. 0328 don't see any info for this...strange.

Edit: I have additional hardware together with the radio, specific for my car, for canbus management.

And,for uninstall Toppal AI, steps?
[Android Head-Units] Clyde72:
You can keep the apps & settings normally if you choose not to erase user data... (checkbox when doing downgrade/update manually)
[Android Head-Units] Clyde72:
Yup, should work. I advise to do all manually and if you want to keep your settings and own apps also check the option not to erase user data.
[Android Head-Units] itiswitis:
The DSP is a little buggy, but overall it works for me. Does the sound change at all for you when selecting different DSP presets (ie: Rock/Popular/Concert/etc)? It took a while to find the best custom settings, but it works.

My Hizpo S6 came stock with software 20230204. I upgraded to 20230414, there was no noticeable change in DSP performance. I was glad to see speed volume control was added in 0414, which was greatly missed from my old radio.
[Android Head-Units] balkanera:
Euqliazer Change Sound But that do radios without dsp Too. I know what can dsp do with This Settings… But bassfilter bassboost dont work Change nothing… that is no real dsp or a bug in some Firmwares
[Android Head-Units] Costi979:
... just changed the mic with external one. All good now.
[Android Head-Units] MauriBixio:
Yes, presets for Rock/Popular/Concert/etc work correctly.But i still have to update to 0414.
[Android Head-Units] MauriBixio:
I agree with your statements...DSP I don't think works correctly.
[Android Head-Units] yoyo linuxien:
Hi guys, the seller sent me these instructions but I can't figure out what the "square control cable" is. Could someone help me get how to do it correctly ?
[Android Head-Units] :
I think the "square cable" is the "key cable" from point number "5". You have to disconnect it from the ground after 15 seconds and then the update will start automatically.
[Android Head-Units] Jeka1400:
The DSP is generally working fine, all settings are working. There is some bug in the "Sound field" item, related to the fact that when setting it up, at some point the sound stops responding to the controls and you have to play with it on-off, as well as resetting it to defolt. But in the end, if you managed to customize it for yourself, which is not very easy, then it functions normally. The only setting that does not affect the sound in any way is the "microphone level". As I understand it, this is a mistake in translation into Russian and in fact it is responsible for the volume level of the subwoofer. And since I don't have it, I can't change anything. The problem I described was both with firmware from 08.22, and in two March this year. I tried to voice it to the seller, but apparently he could not understand the essence of the problem.
[Android Head-Units] Jeka1400:
In order for the controls to begin to affect the sound, you need to select the frequency at the bottom at which you want to change something. And since they are in the off position, then nothing happens. The left knob affects the subwoofer. Do you have it?
[Android Head-Units] :
Did the seller also send you an "update" file?
[Android Head-Units] MauriBixio:
S8 radio pinout.

Are you talking about the wire on pin G5 (Reverse Detection) of the rectangular main connector G?

So in your opinion that is the "trigger" thread to start the update in the user's situation, following the instructions by Hizpo?
[Android Head-Units] :
no no no. I meant the cable from point number "5" from the seller's instructions.
[Android Head-Units] MauriBixio:
In fact it seemed strange to me to use that wire 5 as a trigger...with the name "key" there are 2 wires,but they determine the SWC function for those who don't have a canbus controller G6 and G7 of G coonector...Hizpo better clarify the right wire!
[Android Head-Units] itiswitis:
Ha! I just noticed the pictures, you're absolutely correct, setting this to off would have no affect on the "booster". Also, if you set a filter on the "bass filtering" screen, I suspect it'll cancel out any boost affect. Keep in mind cheap or factory speakers may not respond to low frequencies.
[Android Head-Units] :
I think it's weird too but he can try
[Android Head-Units] Jeka1400:
That's right, but even the cheapest speakers work with a frequency of ~ 150 Hz and higher
[Android Head-Units] :
If that doesn't work, I suggest you try this. I saw it once on another forum.
[Android Head-Units] balkanera:
Yes thats Right… This is my 10.th headunit with dsp from 150 Euro to 1000 Euro . The dsp do the Same in all…realy clear deep bass in my Mercedes ML without harman cardon only the right settings and this Radio with dsp do nothing only with equalizer a Little bit But Not in this way with this dead Setting from bassfilter and bassbooster… so i now what my speaker can do if dsp works and settings work… Every little change in bassfilter you hear directly… in this case you can switch thrue all frequenzy and hear no change.. same sound in all settings.. only Equalizer
[Android Head-Units] MauriBixio:
From your picture, connect pin1 of the 10-pin C connector (TX pin of UART) to GND.

Always strange use this trigger... but you can expect everything from the Chinese! :)

The best thing is to ask Hizpo to specify directly rather than using "interpretative hypotheses".
[Android Head-Units] Jeka1400:
I don’t know what to tell you, everything works on my S7. If it does not work for you, you can open the device and see if there is a DSP chip on the board. Or try reinstalling the MCU file.
[Android Head-Units] :
This is not my idea. I saw this on another forum. It was sent from ossuret. Ossuret are probably the same devices as hizpo.
[Android Head-Units] yoyo linuxien:
Hi, I tested all options, using Key1 or Key2. It does reboot when disconnecting from ground, however it is still not updating. I'll try to obtain more informations from the seller.

The other technique with connecting another pin to ground didn't work either...
[Android Head-Units] balkanera:
I had the Same Problem with other headunit same solution from seller key1 and black ground connect But didnt work… if i Long press reset button few times it very Long time i came in a recovery and Display Shows Something boot up and After 5 seconds turn off..But that Finaly bring no Solution for me and i send it back to aliexpress and get a refund… key1 and black ground cable
[Android Head-Units] MauriBixio:
When you get information from the seller, and if and how you solve it, write here, as it could be useful to know for others if the same situation happens to you.
[Android Head-Units] Astralech:
Here is a clearer explanation of how to do it., post 3188
[Android Head-Units] itiswitis:
Maybe a defective headunit. If you have successfully used many different headunits in the same Mercedes ML and considering that the EQ provides very little changes for you, maybe the DSP is defective.

On my S6, with the bassboost off, I hear noticeable changes in bass when selecting the different EQ presets (from Rock to Hall to Popular, etc.)
[Android Head-Units] balkanera:
This is a normal Equalizer … nothing to do with dsp…tja works but that Sound change with Radio without dsp Too… we talk about bassbooster bassfilter Settings… thats the Special one from dsp and that do a lot more in finetuning deep hard bass that the car vibrate
[Android Head-Units] Johan0503:
See you're talking about the recovery. Started preparing tonight. Moment of truth with recovery, flashing went well in any case passes. Let's see if I can update.
[Android Head-Units] popamor:
Drum roll....... The suspense is terrible.
[Android Head-Units] Johan0503:
The flash was successful. Only the HU indicates that I have 6GB and that should be 8, so no idea why, but think it has always been 6. If you open the HU, you can also see that there is a sticker on it with the data of the device, there you also see 6 + 128GB, so the same story as android 10 (fake12) Direct update to 20230414 did not work (again a checksum error, but was able to do a full reset) so I updated the HU in steps with the *major" updates with auto update, that went well. Recovery procedure was easier than I thought, with some more extensive explanation from Vėžys, so thank you @Vėžys 🙂 Glad I have a well-functioning HU to update it again, thanks to the people on this forum 👍😊
[Android Head-Units] Slaybot:
I have the Hizpo S8. Is there a way to rotate the display? On X Offroad only shows the menus in potrait mode.
[Android Head-Units] Costi979:
Do a search on the unit settings. Or find "accessibility", you will find "auto-rotate"
[Android Head-Units] Clyde72:
Really glad it worked. An advice for future updating. Always go manually, gives the most control and is only 1-2 minutes extra work but it can save you a lot of headache. Skipping 1-2 minutes can become 1-2 weeks or even 3 months (before we got hold of the recovery kit) of suspense...
[Android Head-Units] Clyde72:
That Alibaba translate sometimes 😅
[Android Head-Units] Johan0503:
Thanks @Clyde72 , i learned my lesson 😂 But in the future i only install the "major" updates.
[Android Head-Units] Clyde72:
Major updates used to come every month but since March things changed on that point... I also do major updates manually, is a quick adjustment, rename update_auto.zip to update.zip and place the file in root, takes about 1 minute extra, the 2nd extra minute is to fire up the unit to manually update 😂
[Android Head-Units] balkanera:
Whats the difference??! Starts self? Or in system click on Update ? Whats the difference in this method?? Got my update also from autofather at first But install in System and Update
[Android Head-Units] Clyde72:
Not that autofather sh*t again please 🫣.

Read our thread to find out the difference...

@blue_one how about changing the thread title from "read first post first" to "read first post AND all the following posts"? 🫣
[Android Head-Units] balkanera:
Okay then its that i have already Done was the highest new firmware 0418 Or something… unzip and no mcu .. install in System Update After put It in root of Radio
[Android Head-Units] balkanera:
Thats what you mean:

QF_20230414_x4.11.zip

drive.google.com
[Android Head-Units] Clyde72:
Root of usb disk you mean I guess & 1404 fw
[Android Head-Units] MauriBixio:
Updates:

radio S8 8GB/128GB by Hyzpo,before I had buggy firmware 0328.

Today I installed latest firmware 0414 (MCU was already ok with 0207)

Well, manually directly install with "update.zip" with option enable checksum and NOT delete data.

Install ok,but in the end,Toppal AI was not working properly.

Then re-install manually "update.zip", active checksum, but this time WITH data deletion (I didn't feel like resetting my apps at the end, and more... but I was forced to do it).

Install ok, and finally Toppal AI works correctly.

Now I can set the Toppal AI app from the appropriate button on the steering wheel via canbus of my car, assigning the function to it, but when I press, it DOES NOT activate the Toppal wake-up service to accept the voice command, but opens the Toppal settings screen .

I'm sure that when I bought the radio, with default firmware (I don't remember which one, but it was at the end of 2022, even if the radio was bought in January 2023) THE SAME settings for "Settings---Voice---App for voice ---Toppal Voice", the button on the steering wheel made Toppal wake up instead of opening the Toppal setting screen. Naturally Toppal works correctly with the "Hei Top" command or with a floating icon on the monitor.

Anyone can canbus wake up Toppal from the button on the steering wheel, can you check its settings and make screenshots of it?

Also: those who have read my previous posts know that my AHD rear cam 1080P/25 has stopped working (for no apparent reason) and writes "NO SIGNAL", but instead it works regularly, via canbus, when I engage reverse gear, the switch towards rear video signal, and also work the fixed and dynamic guidelines of the steering, and also animation in approach of the parking sensors.

Even with the latest firmware, same thing, it doesn't work, it writes "NO SIGNAL" .

Now I bought a new AHD rear cam, in the next few days I have to figure out if the rear cam is burnt (and therefore with the new one everything is ok again) or is it a problem with the radio (I hope NOT!).

Well, I'll keep you posted.

In any case firmware 0414 looks better than buggy 0328!
[Android Head-Units] super_paws:
Has anyone figured out a way to customize the "Mode" button in KeyStudy for SWC? I'm looking to switch between a different set of apps but can't really find a good solution to do so.
[Android Head-Units] Clyde72:
The weather is finally getting better, even touching 20°C today so I finally put the upper dash center grill back because up front it holds an solar sensor (opto electronics) for the Climatronic.

So this adds another fine layer of plastic above the gps antenna but still quite decent gps reception & accuracy. Gps fix & time/date sync on full boot is a bit slower but still acceptable. It is still only a matter of seconds so who cares.

Even now, with my car sometimes basking in the sun for hours the last days the unit gets cooled well and quick by the fan ounce driving. So @Meteordust I guess your fan mod method will be summer proof too.
[Android Head-Units] MauriBixio:
Which passive GPS antenna are you using, the one supplied with the radio?

It's not the best, I opted for a "full passive" antenna, dimension little more of default with radio, but it receives (theoretically) 3 types of satellites, with different frequency ranges:

GPS (USA NMEA standards) the default radio antenna

Glonass (Russia)

Beidou (China)

But however, Galileo (Europe new system) is missing.

Well, better reception, very very fast fix, even if, for example I use Igo Israel app for offline navigator, it ONLY uses standard GPS system (12 Sats max GPS NMEA) and maybe Glonass (I have to find how to enable this too in the radio) so ,in any case, you have an accuracy of the position with the NMEA GPS standard. For Italy (where I live) it is ok anyway, real position very precise.

With my antenna in every situation I always have at least 10\11 Sats of position fix, often the max for GPS NMEA, 12.

Antenna position in the center of the dashboard, just below, hidden.
[Android Head-Units] shadxw:
Android auto/Carplay crashes after 30-40 min.I use carletter, seller doesn't want to activate zlink.I'm running the latest firmware and the unit has a fan.
[Android Head-Units] esmeraldo18:
dude does it cancel the internal dsp? it is a whole new dsp right? not just volume gain?
[Android Head-Units] xdsbx:
This is a whole new dsp. You can only change the loudnes on it and you get more dynamic in your sound.
[Android Head-Units] esmeraldo18:
thank you. I'm having some sort of loudness problems that basses humm. I tried to adjust via equilizer but it didn't work. So I was thinking to add external dsp to eliminate these problems. so for example; does bass module in the android unit works? I'm trying to understand if it process audio over the internal dsp which is producing bad sound so I don't want it to process audio coming from internal dsp, I just want to get original android audio sent to this device for processing.
[Android Head-Units] esmeraldo18:
does anyone tried to add usb dac on these units for hifi sound?
[Android Head-Units] Aaantonn:
I write directly - that you are talking some kind of nonsense? Clyde72 wrote to you above - read the thread! The sound on the device is wonderful, learn how to set up and figure out what all the settings are for, everything is in the branch ... People read your negative and think that the device is completely bad ... What kind of acoustics do you have there that you need an external amplifier? You understand that you can’t get by with one amplifier, the minimum option is an amplifier, all wiring, door soundproofing, replacing standard acoustics and separately displaying the DSP control panel for at least convenience. Do you even realize how much money and labor that is? Anyone who does this either loves music (in a good way) or in a car audio studio. Just learn how to tune, you will be surprised how much volume and what sound this bauble gives out!
[Android Head-Units] Aaantonn:
Maybe you don’t know how to tune and that’s why everything is sad for you? 🥴 DSP is a processor with digital signal processing, the equalizer just tunes the processor, and it’s good! If your car vibrates, set the filter cutoff to 60Hz and rejoice!
[Android Head-Units] esmeraldo18:
What are you talking about. It is not rocket science, I just wanted to listen plain, not humming distorted music out of the box. Even loudness setting wasn't working until I updated to 08/04 firmware. so yes these units are cheap chinese crap, that is something I know before I purchase. so what is wrong with upgrading dsp? I wanted to fine tune the settings but it seems like everything in the unit is fake like it's android version. they put millions of equilizer frequencies which most of them only virtual not effective. I have a very good harman kardon speaker system which was working absolutely amazing with the px5 old unit but after switching these I don't want to listen anything. so if you have a suggestion you are welcome, if not shut up.
[Android Head-Units] esmeraldo18:
it is not about the low frequencies it is mostly because of mid frequencies that is causing humming.
[Android Head-Units] marioti:
Anyone know some app to control volume direct in app? There's a AppVolumeControl, but in google play shows it is for older android and i can't use it. I downloaded, and installed it from other source, but it won't work.

The problem is the differences between voice volume in different aps. For eg. if i set a google maps volume fine for me, the Radio app is pretty quiet, and the same time music app (play music from internal storage) is to loud. In google maps you can set only 3-levels of loudness. low, medium and high, but setting it on low, it still to loud. I preffer a Waze settings where you can set volume as you want (but i don't like too simple look of a maps, and too artificial voice in my country).

But anyway that don't solving the issue.

Seccond thing. It's a little bit annoying that DSP controll don't have any possibilities to save a profile. So you spend a time to set equaliser as you want, and you can rouin your work just by pressing one button. Then you have to start all over again. Anyone know how to report it to Jitu, and counting on implemen that functionality some day :)
[Android Head-Units] Aaantonn:
I can say 100% that you're a Fool. Good luck with setting up.