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andriod head unit factory setting menu

I have installed an Andriod 4.2.2 Head unit in my 2013 dodge challenger, this is a unbranded unit,
I have been trying to get my SWC to work.
I can enter a "Factory settings menu" with the Password "126" this allowed me to change logo etc.
there are many options under canbus settings in this menu under "Applications"
Mine is currently set to jeep (union) there are other options ie jeep hiworld , Chrysler and many others.
I have searched for posts that explain these menu,s with no success.
My handbrake canbus radio interface works OK but not the SWC.
can I do any harm trying other settings?
The supplier of the radio just tells me to hook up key1 and key 2 wire and ground, however my radio installer
tells me these are only for resistive touch buttons.
The unit was supplied and installed with a canbus adaptor.
Can anyone help me or point me to a thread that explains this.
Thanks Mike

Its a HuiFei type unit (its not unbranded - there are about 10 brands), read the HuiFei thread.

Most steering controls work by sending a certain voltage down the wire that your head unit interprets. Like 160 mhz is play/pause while 190 mhz is volume up. (those numbers arent accurate, but you should get the jist). This type of controls is a direct analog type and what the chinese units use to intrepret your control data.
Some cars,I'm guessing yours is one of them, use a digital signal that can't be interpreted by the analog wires that come from harness. You'd need an SWC interface as a go between for your car and HU.

KingLo said:
Most steering controls work by sending a certain voltage down the wire that your head unit interprets. Like 160 mhz is play/pause while 190 mhz is volume up. (those numbers arent accurate, but you should get the jist). This type of controls is a direct analog type and what the chinese units use to intrepret your control data.
Some cars,I'm guessing yours is one of them, use a digital signal that can't be interpreted by the analog wires that come from harness. You'd need an SWC interface as a go between for your car and HU.
Click to expand...
Click to collapse
Or a CAN Bus adapter from the manufacturer of his unit. but as I said earlier all the info he needs is in the HuiFei thread . . .

Re Headunit
Thanks guys, so as I interpret this I need a further adaptor additional to the canbus adaptor supplied by the head unit manufacturer.
I would still be interested in finding an explaination of the factory settings menu ,the one you need the password to enter, as I can not find a post on this?

Hi everyone, I need help with my HU. I followed the factory guidance to set up the wiring and installation but my camera lines appears 90 degrees (from the left) instead of the center. I have tried mirroring, no luck. Please see picture. Can someone help me please.
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Uknown option in my radio

hi there
i have a few options on my radio...but i donw know what they mean
first:
GPS MIX
what can this be?
https://imgur.com/a/NYoeGZt
2
Antenna normally ON
https://imgur.com/a/RsQS4on
3
activation ..when clicked says
no application
https://imgur.com/a/zX95ylB
4 -
A/C Information On / OFF
if i turn on, the air conditionar image appears when i turn the radio on...but how to send AC signal saying the status to the radio?
anyone knows how to manage this option ? what are they for?
thanks

Don't use imgur.
No way I am going to register and logon (because that is what imgur requires), because someone wants advise.
(or did you "protect" your images?)
Edit: Sorry. Only first image.
1. You have the american GPS system and the Russian Glonass system. GPS mix means that both systems are used which increases accuracy a lot.
2. You have antennas that can extend/retract into the car's bodywork. That is what this is used for but I do not know what ON or OFF means (I do not have such an antenna)
3. Don't know, but I guess it really means that the necessary apk is not in the firmware and therefore not on your unit.
4. ?? What do you mean?

thanks surfer
for item 4:
https://imgur.com/a/PK3Hpzh

mclaudio said:
thanks surfer
for item 4:
https://imgur.com/a/PK3Hpzh
Click to expand...
Click to collapse
Can't open that one without registering and logging on.

surfer63 said:
Can't open that one without registering and logging on.
Click to expand...
Click to collapse
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maybe like this it works

photo
photo 4

mclaudio said:
maybe like this it works
Click to expand...
Click to collapse
No it doesn't, but on reply the link is displayed.
The CAN bus sends the statuses of the airco to the unit. If you change "something" in the airco settings it will be shortly displayed in an overlay by the CANbus.apk.
In some cars with some CANbus controllers it is even a 2-way functionality: You can change airco settings from the unit.
The door ON/OFF is also controlled via the CANbus. If you open a door it will be shortly displayed in an overlay by the CANbus.apk.

surfer63 said:
No it doesn't, but on reply the link is displayed.
The CAN bus sends the statuses of the airco to the unit. If you change "something" in the airco settings it will be shortly displayed in an overlay by the CANbus.apk.
In some cars with some CANbus controllers it is even a 2-way functionality: You can change airco settings from the unit.
The door ON/OFF is also controlled via the CANbus. If you open a door it will be shortly displayed in an overlay by the CANbus.apk.
Click to expand...
Click to collapse
yes the door is working but not AC info...
maybe because i have KEY1 and KEY2 wire not connected ?(i dont know where to connect it)~
@surfer, i have found a few solutions for my head unit, do you think a good idea to start a FAQ thread only with answers for common questions?
i can help but i am not experienced making the thread...if you help, then i can try to feed the thread

mclaudio said:
yes the door is working but not AC info...
maybe because i have KEY1 and KEY2 wire not connected ?(i dont know where to connect it)~
@surfer, i have found a few solutions for my head unit, do you think a good idea to start a FAQ thread only with answers for common questions?
Click to expand...
Click to collapse
key1 and key2 have nothing to do with the door. For the AC you have to ask Joying.
I already created such a Q&A thread, but it already moved to page 5

A/c is for the VW CanBus. If you install the Unit with canbus into a VW. You can control the Hvac system along with a few other features. Also your cars info will display on your radio. Without owning a VW. You would need to add a BT Obd tool. Like $5-$10 on ebay.

Thanks for the reply
regarding Key1 and Key2 can you help?
thanks

mclaudio said:
Thanks for the reply
regarding Key1 and Key2 can you help?
thanks
Click to expand...
Click to collapse
In the Joyings you have CANbus models that come standard with a CANbus for the type of car you have. These units also have a CANbus motherboard. These units ONLY read the CANbus whether you have steering wheel keys or not. The key1/key2 cables run via the CANbus and only "understand" the binary CAN pulses because there is a different circuit on the motherboard.
These motherboards can not read resistance over key1/key2.
Other Joyings come with a universal motherboard. These units do not have a CANbus and therefore not a CANbus motherboard. These motherboards only read resistance over key1/key2 because of the other circuit on the motherboard.
Of course it is the cheapest to just produce one motherboard with 2 circuits on it. This means you can modify your universal motherboard to CANbus motherboard, or the other way round, by soldering/replacing some resistors on your motherboard. That is the only direct way.
You have a Joying compatible and you mentioned you have a CANbus. I guess it works 100% the same as on a Joying, so that means that your key1/key2, via the CANbus, can only read CANbus binary pulses.
You will not be able to use resistance based SWCs with your unit without soldering OR you should use the [Joying for VW] Universal steering wheel controls with arduino from @bambapin.

well i have a canbus adapter.
my car is a renault Clio IV
the problem is that the keys are working, but i cannot program them in other way, also if i make canbus info print it is receiving data, but apparently not preocessing it.
maybe i can share photos to explain better the problem?

Did you change settings in " Factory Settings" ?

SharkysRacing said:
Did you change settings in " Factory Settings" ?
Click to expand...
Click to collapse
Yes. i choosen renault Clio XP type

Anyone knows how to fix these issues - Android 10" head unit

I have this unit, (image) bought from aliexpress.
Very happy with this unit that is very fast compared to old unit.
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I have following issues that i cannot correct, no matter how much i google i cant find correct solution:
- Bluetooth will only connect to my phone, not to OBD2 adapter. There is no settings for bluetooth in the settings, so i cant even find the adapter. Is there any bluetooth fetures that have been crippled for some units?
- The EQ is very bad, seems it has some presets that all sound ****, except for one, and if i try to modify that setting it reverts back to very bad sound. If i make exact copy of the good EQ setting, under the "personalized" setting, still the sound is not the same. Seems the EQ is just BS. Is this a common problem, any solutions?
- Reverse camera image is inverted / mirrored. And when i change this setting in the settings, nothing happenes to the image. No matter how much i change setting. Anyone knows good solution? There is impression for me that settings does not affect anything, its just a marker in the setting menu.
I would be very happy for any suggestions towards helpin these issues.
I am using Pulsar media player for music - only. (no spotify or other streaming services)
Do i need to provide other info in order to solve these issues?
Thanks guys!
//GF

goodfidelity said:
- Bluetooth will only connect to my phone, not to OBD2 adapter. There is no settings for bluetooth in the settings, so i cant even find the adapter. Is there any bluetooth fetures that have been crippled for some units?
//GF
Click to expand...
Click to collapse
Set BT pass on head unit same to OBD2 pass. That resolved problem with my OBD2

I have the same issue on my HU, but it's different to your HU.
I can also only manage the Bluetooth through the phone app. Often the pair just don't work. It fails to connect to odb2.
What you mean with "Set BT pass on head unit same to OBD2 pass. That resolved problem with my OBD2"?

tzac29 said:
Set BT pass on head unit same to OBD2 pass. That resolved problem with my OBD2
Click to expand...
Click to collapse
I think you didnt understand my problem.
The bluetooth options are completly removed from the settings menu. There is no setting for bluetooth to be found.
I cannot even search for BT items.
The phone is paired to the android unit from using the phone app. However that will not allow pairin of OBD2 or any other BT units.
Are there some units crippled not to accept BT pairing with other units?
//GF

tomygunner said:
I have the same issue on my HU, but it's different to your HU.
I can also only manage the Bluetooth through the phone app. Often the pair just don't work. It fails to connect to odb2.
What you mean with "Set BT pass on head unit same to OBD2 pass. That resolved problem with my OBD2"?
Click to expand...
Click to collapse
You need to change the BT pin on the main unit, to the one defined for your OBD2 adapter e.g. 0000 on this picture change to 5678 or 1234 or 2345 .....

Ah okay, i tried it, but still same issue. I contacted the seller.

My problem is that there is no bluetooth settings at all. There is no place in settings where i can choose bluetooth to sync any bluetooth items. Only in the phone app, and that only allows to sync phones.
Is bluetooth disabled in this unit?

What do you see at the connection icon left to it.

tomygunner said:
What do you see at the connection icon left to it.
Click to expand...
Click to collapse
Connection settings left to what?
The normal place for bluetooth in the settings has not even the word bluetooth. Just wifi.
On the other units there is also bluetooth settings in this place, however on this unit there is not.
I tried to download other bluetooth apps to activate it but non of thos apps work on my unit. However the phone conncets perfect and has good range..

What do you see when you Click on that icon?

I now changed the OBD2 unit and managed to establish contact. Even if this unit was showing on other units, it was not showing on the head unit.
Now the BT is working as expected, still i dont have any setting for bluetooth inside the settings - where it should be.
Other problems still remain.
Equalizer is not working good at all. Seens that only one of the settings is working, rest is very bad soundquality. Even if i make custom preset exact same as "rock" sound is completly different. Like night/day.
Also i cannot mirror the cameras, the unit does not understand mirror and there is no difference in image when i klick mirror button in settings. So left becomes right and vice versa.

I noticed there are TWO EQ apps running same time.
Anyone seen this problem before? That might explain why sounds is like ****.
I tried to forcequit one does not help.
Any suggestions?

Dear goodfidelity, I have same issue with bluetooth
did you find any solution to your problem?

Joying UIS7862 7" setup (Including working Android Auto Wireless)

Playing around with my new unit to try and get it configured. I thought I would share what I have done so far and issues I am having.
Root:
I tried creating my own flashable image, but it did not like my 6315_1.zip file, even when signed with SignAPKv2. I was able to decipher my way into 4PDA where a user had submitted a working boot image patched with Magisk (attached). I updated to Magisk 22 from the Magisk Manager after install.
Android Auto:
Three ways to do it.
CarLink (aka ZLink)
This has worked quite well for me, but only supports wired connections. Hopefully they will update soon.
HeadUnit Reloaded
Wireless Android Auto (Note: phone calls not at 100%)
You need to be on the beta version of HUR which supports wireless android auto.
For Joying to support it, you need to change the config.txt build prop to sys.fyt.bluetooth_type=0 (you can flash link below bluetooth0.zip).
Phone calls do not come through the stereo. In HUR I get the error "Bluetooth is not connected." The phone shows an issue with bluetooth connection and says to try rebooting.
I don't know if this is an issue with the unit and it's dodgy BT or if it is the beta version of HUR.
I'm trying others to see what happens with different settings
0 = Wireless AA, unreliable phone over BT
1 = Factory default, no wireless AA
2 = Bluetooth cannot connect to anything
3 = Bluetooth cannot connect to anything
4 = Bluetooth cannot connect to anything
***Potential workaround
Phone seems to work again if bluetooth is turned off then back on. This does not seem to affect AA since it is running through a direct wifi connection at this point.
I have set a tasker task to turn bluetooth off then back on when it sees the wifi direct connection made.
The phone still says "Bluetooth is not connected" during calls, but the
Base HUR settings to not take advantage of this really nice display. I set the following in HUR's graphics settings for a big improvement:
Resolution: 1240x720
DPI: 200
Render surface: SurfaceView.
Android Auto for phones
Looks pretty good. I'd love to be able to use it for other drivers
Problem
Cannot reliably connect to other apps. NPR One and Pandora both say "there is a a problem opening....."
These apps work fine if they are playing before you open.
Adding apps to skipkillapp.prop does not seem to help
Tasker:
Difficulty reading bluetooth connections. May be related to sys.fyt.bluetooth_type above.
Prevent force close when turning car off:
Added net.dinglisch.android.taskerm = -10 to skipkillapp.prop.
Seems to be working. More to come...
Other Issues:
Deletes all google contacts:
Well known issue, remove syncing google contacts under settings -> users -> accounts -> google.
To get contacts back:
Go to contacts.google.com
Select Settings (gear icon in upper right) -> Undo changes
Go back however far you need to when you still had contacts
Recently I reset to factory defaults which killed the ability to connect to google play
Fix found in Joying forums (here).
Download firmware and place on flash drive
Go into app setting and wipe storage for Google Play Services
Immediately plug in firmware USB and let it reinstall
Magically works again after reboot
FytHWOneKey
Doesn't seem to work on this unit. Developer previously mentioned mute button (seperate in other units) was a direct android call which could only be captured with Exposed?

Hi fellow, I follow ytour post and see that you know what you're doing with the headunit
I come here asking your help
I can't see the mobile network icon in the SystemUI like the photo below (taken from4PDA forum)
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Maybe a parameter in the config.txt file could help ?
Thanks in advance !
Cheers from France

I wonder what sys.fyt.bluetooth_type=0 does in hardware terms.
The UIS7862 unit has bluetooth onboard of the SOM as well as an external USB attached Bluetooth module.
So does sys.fyt.bluetooth_type=0 select the onboard Bluetooth and sys.fyt.bluetooth_type=1 select the external USB module?
If this is the case then it may be necessary to attach a bluetooth antenna to the Unisoc module. Although I believe one of the WiFi antennas does double duty as a bluetooth antenna for this purpose.

VolksJargon said:
I wonder what sys.fyt.bluetooth_type=0 does in hardware terms.
The UIS7862 unit has bluetooth onboard of the SOM as well as an external USB attached Bluetooth module.
So does sys.fyt.bluetooth_type=0 select the onboard Bluetooth and sys.fyt.bluetooth_type=1 select the external USB module?
If this is the case then it may be necessary to attach a bluetooth antenna to the Unisoc module. Although I believe one of the WiFi antennas does double duty as a bluetooth antenna for this purpose.
Click to expand...
Click to collapse
Correct.
Do not use sys.fyt.bluetooth_type=0 on uis7862 FYT. Doing so loses bluetooth Low energy (BLE) and your hands free audio likely sound bad.

Is there a page I can go to in order to see all the options to put in the config file in order to customize it. I love had my unit for a while but am just learning how to customize the firmware

please help can bus disconnect

please help I have problem with my head unit always shows canbus disconnet
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I have problems with mobility in cold mornings

does anyone have the same head unit?

Milad Jarjees said:
does anyone have the same head unit?
Click to expand...
Click to collapse
Sorry, but what do you expect?
Anything not working? If yes... What???
If the unit switches on with Key in Pos 2 or ignition and powers down when removing the key, the CANbox works as expected.
If you want more, you may set the correct CAN settings in the head unit.

Thank you for your reply. so as in the picture can bus disconnet So i can't use car app to know how much diesel my car uses also no warning when door open and other thing.I tried all can bus
Options all for my WV but without successful

Milad Jarjees said:
Thank you for your reply. so as in the picture can bus disconnet So i can't use car app to know how much diesel my car uses also no warning when door open and other thing.I tried all can bus
Options all for my WV but without successful
Click to expand...
Click to collapse
In this case get in contact with the seller, give him all information about your car, incl. model year and what is needed and ask for the correct Can adapter. Might be the wrong one for your car.

rigattoni said:
In this case get in contact with the seller, give him all information about your car, incl. model year and what is needed and ask for the correct Can adapter. Might be the wrong one for your car.
Click to expand...
Click to collapse
I ordered an extra head unit for Golf sportsvan 2014 he knows exactly my car . without can bus i have black screen i think it is right can bus maybe software problem that because i posted here

Milad Jarjees said:
I ordered an extra head unit for Golf sportsvan 2014 he knows exactly my car . without can bus i have black screen i think it is right can bus maybe software problem that because i posted here
Click to expand...
Click to collapse
You just get information from the CAN if the CANbox could interpret the messages. If not, nothing is shown.
I´m still pretty sure that the CANbox is the wrong one or the settings in the head unit are wrong.

@Sanno ???

Milad Jarjees said:
please help I have problem with my head unit always shows canbus disconnet
View attachment 5723299
Click to expand...
Click to collapse
please poll the android car stereo out and check if the the can bus connected an if there is no short with cables, then take a photo for the can bus sticker and send it here

On top, I would read out the BCM for CAN error messages.

rigattoni said:
On top, I would read out the BCM for CAN error messages.
Click to expand...
Click to collapse
i mean on the black box steacker

Sanno said:
i mean on the black box steacker
Click to expand...
Click to collapse
...and I mean to read out any error message stored on the modules.
It always can be possible that any issue on the CAN sets an error code in the BCM (Body Control Modul).
BTW: If you just connect something to the CAN, you need to make sure that the CAN is terminated.
Needs to get read out with an OBD scanner.

rigattoni said:
...and I mean to read out any error message stored on the modules.
It always can be possible that any issue on the CAN sets an error code in the BCM (Body Control Modul).
BTW: If you just connect something to the CAN, you need to make sure that the CAN is terminated.
Needs to get read out with an OBD scanner.
Click to expand...
Click to collapse
Could you explain this last message? How would you recommend looking at the CANBUS to determine whether a head unit is causing a short/issue versus another vehicle component/wiring issue? I'm having a lot of issues after installing a new stereo, but was having a few minor issues beforehand in the same general area of the vehicle.

rabbited said:
Could you explain this last message? How would you recommend looking at the CANBUS to determine whether a head unit is causing a short/issue versus another vehicle component/wiring issue? I'm having a lot of issues after installing a new stereo, but was having a few minor issues beforehand in the same general area of the vehicle.
Click to expand...
Click to collapse
Well...
If any attached system has issues and disturbs the CAN, you will have multiple issues in this CAN.
You need to connect an oscilloscope to see what is going on on the CAN and if the signals are correct. If they are not correct, you need to find the controller or device which is disturbing the communication.
As long as this has not been fixed, you may have issues also with the radio. Analyze the issue correctly and fix what you will find.
You need to get the diagram of the CAN where the Radio is attached to and then follow the diagram to narrow that down.
At least a scan for errors with a good OBD device will help to filter out what is wrong.