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General Medeke/Navifly 7862

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zytw

Member
Oct 21, 2015
6
0
I have already restored the old config.txt but things do not change regarding the background white noise i the noise of the bluetooth and radio applications make a noise like a beep when opened

Edit:The beep noise is also present when I mute the volume, Could I do a clean reinstall?
Maybe. Anyway, I suggest you do complete power-off and on before that (pull out off the unit harness, wait 30 seconds, then push it back). If it doesn't work, ask the seller for the original firmware and flash.
 

Matt89s

Member
Jun 17, 2016
22
1
Nothing to do reset done, firmware updated, cables disconnected, the problem persists. Incredible I have no words. I don't know what to do anymore :( you constantly hear this background white noise on the speakers and when I open applications like bluetooth radio that have access to the speakers it makes a small beep

Edit:It seems like there is some process that is not closing and making the speakers remain with no sound but waiting for
 
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zytw

Member
Oct 21, 2015
6
0
It seems like a hardware issue. Did you check the harness? loose? short circuit? GND well-grounded to chasis? Same issue when you use the factory stock head unit? Can't figure out other reasons, maybe you have to ask the seller for a replacement.
 

Matt89s

Member
Jun 17, 2016
22
1
Let's not joke it's not a hardware problem it's definitely due to the flash operation I carried out, now it's figuring out how to go back ...
 

Matt89s

Member
Jun 17, 2016
22
1
After several flash firmware and reset to factory settings, the situation seems almost back to normal. The white noise has disappeared, I do not understand why but only with the engine off was there a slight noise when closing and opening the bluetooth and radio, but in any case it is something imperceptible if you do not notice it. However, all of this remains a mystery
 

surfer63

Senior Member
May 4, 2010
3,737
1,432
Zwolle
hvdwolf.github.io
After several flash firmware and reset to factory settings, the situation seems almost back to normal. The white noise has disappeared, I do not understand why but only with the engine off was there a slight noise when closing and opening the bluetooth and radio, but in any case it is something imperceptible if you do not notice it. However, all of this remains a mystery
Sorry. Was on travel for a couple of days (first time since Covid).
I assume it has to do with settings being corrupted because of an incorrect flash. Maybe the config.txt should also have contained a twipe_data command, but that would also have caused that all your settings and 3rd party installed programs would have been wiped.
But in the end you still ended up there.

Now that everything has been flashed and wiped multiple times I would like to ask about the original issue: Is your unit going back to English after a reboot?
Also: I did not know you had the original firmware, but fortunately you did.
What is in the config.txt of your firmware?
 

Matt89s

Member
Jun 17, 2016
22
1
Sorry. Was on travel for a couple of days (first time since Covid).
I assume it has to do with settings being corrupted because of an incorrect flash. Maybe the config.txt should also have contained a twipe_data command, but that would also have caused that all your settings and 3rd party installed programs would have been wiped.
But in the end you still ended up there.

Now that everything has been flashed and wiped multiple times I would like to ask about the original issue: Is your unit going back to English after a reboot?
Also: I did not know you had the original firmware, but fortunately you did.
What is in the config.txt of your firmware?
In reality, the problem of white noise when apps are closed is still present, including the beeps when opening and closing the radio and bluetooth apps. Also I have a problem with two buttons on the steering wheel that conflict ... Clearly the language problem is still present. I just don't know what to do to fix it, instead of solving I caused other problems ... please help me
 

surfer63

Senior Member
May 4, 2010
3,737
1,432
Zwolle
hvdwolf.github.io
In reality, the problem of white noise when apps are closed is still present, including the beeps when opening and closing the radio and bluetooth apps. Also I have a problem with two buttons on the steering wheel that conflict ... Clearly the language problem is still present. I just don't know what to do to fix it, instead of solving I caused other problems ... please help me
With regard to changing the config.txt on the oem partition.
See this post from @gordgelin

So for the time being I am also out of options.
An option might be to do aagain a full flash and change the config.txt on the USB-stick immediately with the Italian codes.
 

Matt89s

Member
Jun 17, 2016
22
1
This was done and did not fix the bug
EDIT:
I noticed that when I enter the car maintenance app and change the language, Italian has a check mark. But I leave the app and come back and go to language the check mark is no longer there
 

uberNoobZA

Senior Member
Oct 10, 2008
558
340
Oxford
Some changes between the April and May builds:
1. app switcher now allows swiping to close apps
2. launcher seems to have a night mode when headlights are on (don't recall it before, but not 100% certain)
3. defaulted to having 3 floating icons enabled. had to find the two apps to disable them
4. google photos seems to no longer be able to see the internal storage at all. Was nice to use it to automatically upload screenshots..
You mentioned 3 floating buttons. I've reset my Navifly 7862 to factory and now have a floating button that brings up some shortcuts in a square when I tape it. I can move the button around the screen, but can't find how to get rid of it. Would you know how I can hide this buttons ?
 

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nnquynh

Member
Jun 14, 2005
17
2
Hanoi
You mentioned 3 floating buttons. I've reset my Navifly 7862 to factory and now have a floating button that brings up some shortcuts in a square when I tape it. I can move the button around the screen, but can't find how to get rid of it. Would you know how I can hide this buttons I
I don't know if it is the same with Navifly, but by Ownice 7862 you should swipe down from the top of the screen, and touch the icon "suspension close" to switch off this floating button
 

WV1

Member
Jun 9, 2021
14
2
You mentioned 3 floating buttons. I've reset my Navifly 7862 to factory and now have a floating button that brings up some shortcuts in a square when I tape it. I can move the button around the screen, but can't find how to get rid of it. Would you know how I can hide this buttons ?
I had the same. Turned it off in one of the settings menu's not sure which one though.
 

surfer63

Senior Member
May 4, 2010
3,737
1,432
Zwolle
hvdwolf.github.io
I had the same. Turned it off in one of the settings menu's not sure which one though.
You mentioned 3 floating buttons. I've reset my Navifly 7862 to factory and now have a floating button that brings up some shortcuts in a square when I tape it. I can move the button around the screen, but can't find how to get rid of it. Would you know how I can hide this buttons ?

Not in the Settings. This is the Touch Assistant apk. It has an option to "display button" and "start automatically".
Switch both to off in the apk
 

Petepango

Member
Oct 28, 2011
7
0
Sorry. Was on travel for a couple of days (first time since Covid).
I assume it has to do with settings being corrupted because of an incorrect flash. Maybe the config.txt should also have contained a twipe_data command, but that would also have caused that all your settings and 3rd party installed programs would have been wiped.
But in the end you still ended up there.

Now that everything has been flashed and wiped multiple times I would like to ask about the original issue: Is your unit going back to English after a reboot?
Also: I did not know you had the original firmware, but fortunately you did.
What is in the config.txt of your firmware?
Will the Joying UIS7862 Android 10 1280x800 ROM found in below youtube video work on Navifly/Mekede UIS7862 Android 10 1280x800 units?

 

MasK

Senior Member
May 15, 2005
1,266
129
Singapore
www.imraneo.com
Hi all.
I just got a Mekede 7862 6/128 unit and my reverse cam doesn't work.
When I shift to reverse, the +12V does turn my cam on (as I tested it via DVI-IN) so clearly the canbus should be working. It's just that the Android doesnt change to cam input. Am I missing something here?

Also, my backward/forward steering media controls are swapped. Is there a way to re-map it? I don't quite understand how to use the steering learning page (does this even work?)

Thanks for any help. I'm also asking the manufacturer for help but theyre a bit slow and there's translation that goes on too...
 

ziddey

Senior Member
Aug 26, 2007
1,816
1,563
@MasK
easy part first: The swc programming doesn't apply when using canbus instead of key1/key2. There's a setting to flip the controls if they're swapped. It's under factory settings (pin 3368), then something like car agreement (can't remember the actual name).

What car is this? If you have a traditional resistor network style steering wheel wire, you may be able to use that instead and program as desired.

I haven't tested canbus yet (my car doesn't have canbus leads in the radio harness, so I'll have to tap it from somewhere else).

You wired your camera power to the reverse light? In that case, you can splice it to the power wire that's married to the composite cable and hook it up to the "back" wire on the headunit harness. That'll trigger it outside canbus.

Or you can tap the same reverse wire up front to "back", and hook up cam 12v to power the cam instead (doesn't really make a difference though since I don't know if there's a way to force the reverse camera when not in gear).

As far as utilizing canbus for reverse, you can try checking in factory settings that the proper canbus config has been applied. Or you might need to find the manual for your canbus decoder. My unit came with one (a raise box for mazda), and it seems to provide a reverse out pin. So I'm not sure if the headunit would directly be able to pick up reverse via canbus, or if I'd need to add a wire to connect that pin to "back" (no matter since I already tapped a reverse source). Curious since I haven't been able to find a canbus message for reverse for my car anyway (seemingly only in-gear or not).

I did notice a reverse power setting, but haven't checked what it does. I have it disabled, but when going in reverse, it does provide 12v. Maybe it'd reverse it to ground instead?



So if you verify the canbus settings to be proper on the headunit, you might need to fall back to using the "back" wire to trigger instead.
* check if your canbus decoder has a pin for reverse and it works as expected
* find a reverse source under the dash and tap that
* feed the reverse signal back up via the composite/power combo wire since you've already got it tapped

First two options would let you use the headunit to supply power to the cam and undo the reverse tap in the reaer.

Curiously, I get some group loop interference if I connect the cam to ground. If I leave it floating, and just rely on the composite cable's ground to the headunit, the video is good.
 
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MasK

Senior Member
May 15, 2005
1,266
129
Singapore
www.imraneo.com
@MasK
easy part first: The swc programming doesn't apply when using canbus instead of key1/key2. There's a setting to flip the controls if they're swapped. It's under factory settings (pin 3368), then something like car agreement (can't remember the actual name).

What car is this? If you have a traditional resistor network style steering wheel wire, you may be able to use that instead and program as desired.

I haven't tested canbus yet (my car doesn't have canbus leads in the radio harness, so I'll have to tap it from somewhere else).

You wired your camera power to the reverse light? In that case, you can splice it to the power wire that's married to the composite cable and hook it up to the "back" wire on the headunit harness. That'll trigger it outside canbus.

Or you can tap the same reverse wire up front to "back", and hook up cam 12v to power the cam instead (doesn't really make a difference though since I don't know if there's a way to force the reverse camera when not in gear).

As far as utilizing canbus for reverse, you can try checking in factory settings that the proper canbus config has been applied. Or you might need to find the manual for your canbus decoder. My unit came with one (a raise box for mazda), and it seems to provide a reverse out pin. So I'm not sure if the headunit would directly be able to pick up reverse via canbus, or if I'd need to add a wire to connect that pin to "back" (no matter since I already tapped a reverse source). Curious since I haven't been able to find a canbus message for reverse for my car anyway (seemingly only in-gear or not).

I did notice a reverse power setting, but haven't checked what it does. I have it disabled, but when going in reverse, it does provide 12v. Maybe it'd reverse it to ground instead?



So if you verify the canbus settings to be proper on the headunit, you might need to fall back to using the "back" wire to trigger instead.
* check if your canbus decoder has a pin for reverse and it works as expected
* find a reverse source under the dash and tap that
* feed the reverse signal back up via the composite/power combo wire since you've already got it tapped

First two options would let you use the headunit to supply power to the cam and undo the reverse tap in the reaer.

Curiously, I get some group loop interference if I connect the cam to ground. If I leave it floating, and just rely on the composite cable's ground to
Thank you for your detailed explanation!
The swapping of the buttons is settled.

As for my HU, firstly, there is no "back" wire for my unit. Here's the listing (Qashqai):

I do not have the manual for my canbus. It is also a Raise unit as in the attached pic.
The only pin layout I know is for the power connector here:

As I follow the reverse cable, it is already split into to the canbus connector and a cable harness which connects to the car. I used to have a Dasaita which has a difference Raise unit and the "reverse trig" wire for that canbus connector doesnt match up to this one. Perhaps these 2 Raise units have different pin configuration.

Currently the power of my cam comes from the "cam 12V" wire, as shown in the attached pic. Interestingly this wire turns on only when I am in reverse gear. How does it know I am in reverse? I don't know. Along with this "cam12V" cable bundle, I have the CAM-IN RCA and also a "IR" wire. I wonder if the IR means infrared or something else.
The manufacturer is not responding yet and I am so close to getting this done. Otherwise it's a blazing fast unit..
 

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ziddey

Senior Member
Aug 26, 2007
1,816
1,563
Ah yeah, my unit (navifly) has 02 on the main plug labeled as "back" instead of "reverse". When I apply 12v to it, the headunit supplies 12v to cam12v and switches to the camera view. That's very strange it's able to detect and supply power but not switch to the camera app. Maybe there's a setting that needs to be toggled?


The pdfs under df-rz-22 might be close enough if you compare a few

like:

yzlcDxB.png


You said you have a reverse wire in the stock radio harness? And that's spliced with a wire going to the canbus decoder and to the headunit's reverse wire??
 

MasK

Senior Member
May 15, 2005
1,266
129
Singapore
www.imraneo.com
Yes, so if you apply 12V to your reverse in, you get a cam12V out and also display switches to cam.
Electrically mine seems to work the same way, however the unit does not switch to cam :(

You said you have a reverse wire in the stock radio harness? And that's spliced with a wire going to the canbus decoder and to the headunit's reverse wire??
Thats right. It's pre-connected. So thats probably how it kkows that my gear is in reverse.
This all seems to be a SW/MCU issue. I also dont think the installation would require me to strip any wires, etc. Kinda tempted to factory reset the unit too...

Do you know if theres a FW repository for these units?
 

ziddey

Senior Member
Aug 26, 2007
1,816
1,563
Can you identify which pin on the canbus decoder is connected to the reverse wire? Seems like that might be redundant?

The only repo I've found has been in this massive russian thread: https://4pda.to/forum/index.php?showtopic=1000996&st=5000

Seemingly only modified firmware (not sure what's been modified) or factory 360. I did come across a June navifly stock firmware buried in the thread and updated my unit with it. Not easy to search the thread for me since it's in russian, but it's where the bulk of the info is.

edit: you've played with the factory settings, toggling off all the 360 ones? seems like it's being actively discussed in that thread right now
 
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  • 1
    From MTCD, to FYT - moving to the dark side :)

    I brought two M600 units (fyt = 116 Mekede) received a couple of days ago.

    As part of the sale, the reseller sent me 'upgrade' Android 11 files.

    These turned out to be nothing less than a prop script, which set build type =11 - switching on fake Android 11.

    Initial thoughts.
    While I am yet to install in the vehicle's, the devices themselves are much better looking, better/brighter displays and faster than the PX5 MTCD devices I have been hardware developing.

    They're also more resilient to messing around with image files and alot easier to recover.

    Device configurations and customisations such as volume dependant speed, a real equalizer multiple launchers make for a much better experience so far. Hoping the Audio side is just as good.

    Will post back.
    1
    What does the reseller suggest when contacted for support.
    Seller has not answered me. I did however solve my problem. There was one more canbus box setting for Mazda 6 that I did not try last time for some reason and now the steering wheel controls work. Car clock is now stuck in 12 hour mode though which is shame, but other than that it works fine.

    One of my speakers however sounds very bad now so I might have to tear the unit out and fiddle with the wires. Radio signal is also worse than with the original radio.
    1
    Radio signal is also worse than with the original radio.
    Does your car have an amplified antenna? If not: Did your unit came with an antenna amplifier?
  • 2
    I purchased a Joying 7862 10.5 inch head unit, because I read that the Navifly/Mekede ones do not sent the proper low-level line output signals the amplifier(s). I discovered that Joying's firmware does not allow making hands-free phone calls using Google Assistant. When I give the voice command "Hey Google, call mom", it responds with "I'm not able to make calls yet". Has anyone has been able to make this work with the Navify/Mekede head units? I asked some resellers and they said that I can pay $15 more for "Voice software" that will allow Google Assistant to work. Is this true?

    I have 2 weeks to return my Joying for a refund, which I'm now considering. I contacted Joying support directly, and they responded that since I bought it on AliExpress I should contact my seller for support. When I asked the seller about the issue, they told me to install a firmware update dated 2021.7.5 to see if that solves it, but the result was the same. I regret spending so much more on a Joying brand and getting bad support.
    Google says "I'm not able to make calls yet" because google believes our headunit is a tablet. If you set minimum width=400 in developer settings google will try to make the call.
    On my unit width=400 caused other problems so I immediately returned to stock width.
    Regarding the paid voice software: It is not google but an inferior Chinese voice app. It doesn't support my native language so I can't use it for navigation. Voice calls sort of works but I have to pronounce the contact name in english.
    1
    My new Navifly 7862 FYT unit was installed in my car yesterday. My mcu FYT is same as yours (except date 19.11.2020) .
    Great sound (linked in optical to my DSP) , great QLED Panel and great superfaster GPS connection. I'm very very satisfied about this radio except 2 things:

    - the launcher is very bad (similar to Android 9 launcher of MTCE units). I can't understand why the launcher after boot show ever sound settings panel (i need ever to tap "home" icon). Is possible to change this launcher?
    - I can't find how to silence tap sound

    thanks for help
    In the settings (it might be in the factory settings. Use pin 3368 for the factory settings access) there is an option to launch Navi software but you can actually choose any app to launch on start up. Find that setting and change whatever is launching to something else and test the result. Then report back.

    It is possible to change the launcher in the factory settings (again, I think it is located in factory settings). There are 5 or 6 options of default launcher. I choose not to use any of them and simply choose the Microsoft Launcher. But there are other car specific launchers that you can download. You can use any launcher that you like using on your phone, too.

    Silence for tapping screen is in the settings somewhere. I might have gone into the Pure Android settings to turn it off. I really can't remember any more.

    In Microsoft Launcher, there is a link to open the pure Android settings. There are other more complex ways to get there, though.

    Also make sure you switch on the setting that allows the radio to go into sleep mode or you might find yourself with a flat battery one day.
    1
    Can you disable it in the Factory Settings? I recall some settings / options regarding the rear camera. Factory pin is 3368
    1
    Does anyone know how to disable the reversing camera? I do not have a camera nor will I install it.

    when I put the gear in reverse, the screen goes black and the music cuts out.
    On most FYT models you have to cut/disconnect one of the wires. It should be in the installation instructions.
    1
    Radio signal is also worse than with the original radio.
    Does your car have an amplified antenna? If not: Did your unit came with an antenna amplifier?