yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] cvbeetz:
Lost hardware button functions

Maybe this can be of help to others:

Although I was rather satisfied with my Quad core unit for mercedes S-class, the last few weeks I got more and more problems. Every time after some minutes it looked like the unit was spacing and always went to dvd player, after that the hardware buttons refused all input. Since I didn't get any reaction on my mails to Bob-Ownice, I decided to examine the unit myself, since I had the feeling that it would be some kind of shortage. Maybe in a flatcable connection or something else. I know I would loose warranty but sending it back would also cost a lot of money...

What I found was very disappointing. Probably to make way for the 4G SIM unit they have cut out a bigger hole in the electronic board and rewired the prints very amaturistic. (see photo's) I have removed all the added wiring and eveything works now normal exept for the DVD-remove button. May I will repair that later but I don't use the DVD anyway.
[Android Head-Units] SwissGalaxy:
It's interesting what you say because I also have several problems that have appeared gradually:

1) The buttons on the left no longer work

2) The right channel does not work, then returns!

3) Now I lose memory (more icons) every time I reboot

I'll take a look in the box, where exactly?
[Android Head-Units] Manunio:
Ayuda recovery mode

hello friends how can i get into recovery mode on my ownice c500? what happens is that I put my stereo pin and downloaded the battery of ma auto, when I loaded the stereo reboot and asks for the pin, but I do not remember which was, with which I can not enter the stereo, I would like to enter recovery mode to leave it as factory and remove the pin, I leave the photo of the stereo that I bought at gearbest.com sorry for my English but I am using the Google translator
[Android Head-Units] cvbeetz:
Actually quite simple (in my model). By unscrewing 8 small screws, holing the front, the front panel can be detached. The screws are on the backside. The inside of the frontpanel consists out of three boards. The physical buttons are on the 2 sidepanels and are connected with 26 core flat cables to the middle board. This is connected with relatively long flatcables to the mainboard in the unit.

The problem board, in my case, is the one with the SIM unit. You will need a steady hand and good focus!
[Android Head-Units] SwissGalaxy:
I love these Chinese for their after-sales service (no response from Bob either)......
[Android Head-Units] yurtesen:
Actually, my screen got broken and they sent me a new screen. This was store I bought from which was named 'Winlink - Top Car D V D Supplier'. I accidentally asked it from 'Ownice Official Store' on AliExpress also and they immediately replied and told me that I didnt buy from them :p

[MENTION=4423444]JeDaj[/MENTION] Normally when I listen to normal over the air radio, then the navigation sounds come out in pieces/jittery. You don't have this problem? Which unit do you have? :)
[Android Head-Units] JeDaj:
I don't have any problems with jitter or incomplete directions from Sygic (I only use it for now). I have touch only octa core universal 2G 32G

http://s.aliexpress.com/euQB3a6n

I also have bought it from Winlink. The contact so far is great. I had a problem with random resets loop. For now it looks like it's solved. I'll post everything in a week or so when I will be sure that's good.
[Android Head-Units] yurtesen:
[MENTION=4423444]JeDaj[/MENTION] How did you solve resets? In the past some people mentioned it is caused when 4G antenna is accidentally connected to GPS port. But also some said it happens when you lose network connection. I personally have my sim settings to point to a dummy access point because I don't want to use network over sim in the unit. I use hotspot from my phone and never had any reboot issues.
[Android Head-Units] JeDaj:
Like I said. Right now I'm testing the solution. For me the resets were occurring in some parts of town where I live. I could just drove the exact road and resets all the time. I will post everything I have. Just give me some more time for tests.

EDIT

Problem: random resets during driving. I have noticed that those happen on specific areas of my town. I went to one of those roads, pull over and made that video to show it to seller on Ali express

[YOUTUBE]c_fABiXUZTw[/YOUTUBE]

As you can see I have full 4G coverage in the area. At least on screen ;) But I have also tested it without sim card in the slot or with disabled sim in settings. No bluetooth connection, no other things connected to head unit (no rear camera, no tpms, obd, etc.). Just few wires needed to run the unit and all antennas (gps and 4G). Head unit reset all the time on that street. If your unit is acting like this sometimes, you can check crash logs located in TsCrash folder on your internal memory. I had the same crash log all the time. It looks like this:

HMI Version:_010.2017.07.25. 9.33
packageName:com.ts.MainUI
Exception:Bad position (limit 62): 153
java.nio.Buffer.positionImpl(Buffer.java:351)
java.nio.Buffer.position(Buffer.java:345)
net.easyconn.platform.wrc.core.l.a(WrcUtil.java:135)
net.easyconn.platform.wrc.core.e$1.onScanResult(LollipopScanHelper.java:114)
android.bluetooth.le.BluetoothLeScanner$BleScanCallbackWrapper$1.run(BluetoothLeScanner.java:362)
android.os.Handler.handleCallback(Handler.java:815)
android.os.Handler.dispatchMessage(Handler.java:104)
android.os.Looper.loop(Looper.java:207)
android.app.ActivityThread.main(ActivityThread.java:5737)
java.lang.reflect.Method.invoke(Native Method)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:834)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:724)

Solution: I think it's safe to say that the problem is gone now. I did today a little course around my town and head unit didn't reset any more. The solution I was told to do was to disable BT SWC. You can locate it by going to 1260 menu:

SETTINGS -> SOFTWARE VERSION -> LITTLE COG ON RIGHT -> 1260 -> MENU ICON. Here you will find apps that are starting with head unit. Just double tap on BT SWC and it will disappear from the grid. You can also disable other things you don't need. Press SAVE and choose REBOOT. After that I didn't encounter any more resets or strange behaviour. Yet. I did like 300km.
[Android Head-Units] baner_:
How to run recovery mode? The ONE-KEY RECOVERY solution didn't work on my device. New device from gearbest c500 ol-f7002.
[Android Head-Units] yurtesen:
[MENTION=4423444]JeDaj[/MENTION] Isnt BT SWC something to do with bluetooth connections app in the device? For controlling music play etc. dont you need that? I also disabled remote display crap etc. right away when I received the unit actually. Good idea to disable all nonsense :)

Also, is that your youtube video?
[Android Head-Units] JeDaj:
[MENTION=3394679]yurtesen[/MENTION] the seller said that it's for controlling those Bluetooth wheel control devices. Like this one:

http://s.aliexpress.com/RfeyMbqU

I don't use anything like that. I have buttons on my wheel so it's no big deal for me.
[Android Head-Units] Manunio:
how does it work The ONE-KEY RECOVERY?
[Android Head-Units] baner_:
"The machine provides ONE-KEY RECOVERY function (when the machine is powered on, first press the power button for 4 seconds to power off, then press the power button again to turn on and off for 15 seconds, the system enters to one-key recovery mode) to restore the device to factory-setting, in case of some dysfunction cannot be resolved. Note: in this way, the documents, files, data and installed third-party applications will be all cleared" - text from manual.
[Android Head-Units] tidemann:
I'm trying to add new android user profiles, but pressing the users icon does nothing.

Anyone got this working?

Do I need to root the device or insert a sim card to get multiple user profiles working for android?
[Android Head-Units] Manunio:
and if that does not work with that combination with the power button is there another way to enter the recovery mode?
[Android Head-Units] vivacious:
Hello

Have u ever had problem youtube video runing black? My client many people have this issue on C500+ & C500 octa core Ownice head unit. I dont know why and not able to solve

https://www.youtube.com/watch?v=SXMG_lJUx8A&sns=sms
[Android Head-Units] JeDaj:
Hi. I haven't use YouTube before. But for you I have checked it today. I tried it from chrome browser. First clip that loaded. Works fine. I haven't change any settings like quality. I don't have YouTube app installed.

EDIT

I have just checked YouTube App installed from Play Store. Also, no problems in watching clips. The only thing I have changed was Brake set to 1 (force off) in 1260 menu, submenu Others.
[Android Head-Units] SwissGalaxy:
Can anyone make a picture of its configuration (> 1260> others) of its Octacore 7001G model?

Thanks for your help. I have a configuration problem and I can not reset the original ROM settings ...
[Android Head-Units] osmar.menezes:
JeDaj

Thank you very much for sharing the solution.

I always had this problem, when I moved away from and without signal of network of SIM the device restarted, after deactivating BT in menu 1260 the problem did not occur anymore. : D
[Android Head-Units] JeDaj:
Great to hear that it helped.

[MENTION=5589241]SwissGalaxy[/MENTION] - those are from my head unit. Except "Brake" from 3 to 1 I didn't change anything else.
[Android Head-Units] nic39.41:
How can i root c500 8 core

Pls help
[Android Head-Units] yurtesen:
It makes sense since you said it. Bluetooth Steering Wheel Contrl (SWC). Maybe in that one neighborhood they were trying to hack your bluetooth lol :D

So it is not possible to root 8 core units? It is sad because I rooted my older 4core unit and changed the boot animation to something much nicer. It would have been nice to be able to do it in case if I upgrade to an 8 core version.
[Android Head-Units] JeDaj:
Nah, those resets was happening in more than one area ;) Would it mean that there's so many haxorz in my town? haha

Check wiki. Tweaks section.

https://xdaforums.com/wiki/Ownice_C500#Tweaks
[Android Head-Units] SwissGalaxy:
[MENTION=4423444]JeDaj[/MENTION] and all the others who helped me

I solved my startup problem and left buttons by setting the "Sreen" parameter to 0 (it was set to 1).

Now everything works well, I'm very happy!

Thanks to all, this forum is fantastic.

---------- Post added at 02:07 PM ---------- Previous post was at 02:01 PM ----------

Does not work with Ocatcore ...
[Android Head-Units] 747 Driver:
Hi, does anybody knows how to connect the OTS020 TPMS to the C500 (PB76FSFAP-S).

I need detailed information aboutbthe plug behind the unit. What is power, gnd, + and data.
[Android Head-Units] vgabbott:
Freedompop Update. 4 weeks ago, my 3g Freedompop data service stopped working. It turns out that Freedompop is now on 4g upgraading their whole US network to let 4g. Apparently in some att areas, when they turned on 4g, their 3g signal stopped working. After working with Freedompop techs for 3 weeks, they told me that I needed to purchase their lte 4g sim for my c500. So I just ordered them. Will update as soon as I get and install them.
[Android Head-Units] 747 Driver:
Hi, does anybody know why Android Auto will not install on the C500 (PB76FSFAP-S)?
[Android Head-Units] nic39.41:
thx for answer.

but i take all times permission denied on terminal emulator. :(
[Android Head-Units] JeDaj:
[MENTION=7487081]nic39.41[/MENTION] - check this thread https://xdaforums.com/android-auto/android-head-units/ownice-c500-root-t3558760

There are some people that was able to root octa core unit. Maybe you will find more info you need. I didn't root mine so I can't tell you anything.
[Android Head-Units] deh2002:
I have an ownice c500 quad core unit that I just put in my 2005 vw touareg.

Can't do anything on it without the parking brake on.

Any help would be great.

Thank you
[Android Head-Units] JeDaj:
From FAQ on Aliexpress:

Q: How to let the the message "Do not operate while Driving" disappear?

A: Setting ---->Vedio ----> Watching video is forbidden while diving ( mark off).

You check everything on:

http://s.aliexpress.com/J3iMvEnY
[Android Head-Units] deh2002:
Got it squared away. Was looking for the brown wire for the brake to ground out but for some reason mine was orange.

Caused mass confusion...lol
[Android Head-Units] TNS201:
You can get into the 1260 menu and disable it.

Go to settings -> software information or version and then there is a cog in top right corner. Click the cog enter 1260 and press OK. then look for brake and set to 0 and you will not have to even mess with the wire.
[Android Head-Units] velocity4:
My comments relate to 7002G with the single knob and physical buttons.

1) Don't know

2) You can put an SD card in the map slot only. Any SD whether it holds map data or not:)

3) 32GB is correct. Nothing bigger unfortunately. Side note, brand new late 2015 Australian Ford with Sync 2. AlSo 32 gig max:(

4) Have a look around. Almost all these units with Android 6 have this. Someone here prob knows why:)

5) Yes. I have a non Ownice cam on mine.

6) Don't know for sure but I thought I read somewhere that you can only use theirs. But maybe that was Joying.

7) Yes. I have this.

8) They work fine, I have had no issues. Plus I refuse to have a car stereo with no knob to adjust volume. I hate all touch for this as you have to look at the screen directly to make an adjustment. Of course with steering wheel controls this isn't as much of an issue but I still use the physical knob even in cars that have both.

9) No idea

10) There is a picture of the different insertion methods in the Ownice AliExpress store FAQ pages.

11) Yes, and I don't use mine much so I haven't bohered to look for a diff one.

12)Don't know

13) Don't use it yet

14) Not that I've noticed but there is an option to search by station type

15) It won't be a problem. Think of this as a tablet not a car radio. When your acc power gets cut off the unit just turns off the screen and doesn't shut down until the internal timer goes off settable up to an hour. The only worry I can think of is the constant on off of the screen. if you mean ALL power then wire the units constant on directly to the battery.

16) Have not tried

17) If you mean 2 at the same time, no.

Hope this helps.
[Android Head-Units] danzandt:
To your questions.

Hi,

(Reference to my Ownice C500 - 7002)

2. It has two card slots, one for SD/MM the other one for SIM 4G or 3G, both available at same time, of course.

3. I use with no problem a 64 GB SDXC card. I don't know if 128 GB cards can work with this unit.

4. Indeed, the built-in EQ is limited to these 3 options, but any reasonable player (Poweramp, etc.) has much more and can solve this.

5. You can use any rear camera you want; image is reasonable (depending on camera) and comes instantly on display. No boot- waiting time more.

6. I don't recommend the Ownice own DVR, it has a poor, noisy image and limited features. I built it out and bought another one with better (6- ) lens and faster CPU

7. Yes, actually with very good results. You can even use one or two separates amp and an active sub.

8. I don't really understand your question about buttons, there are only 4 physically buttons and a volume knob and they are OK.

10. Insert mode of the SIM is pictured on lid and really, you can't insert the card other way then this. It's quite simple to get it in and out; I change my card every week. Function is OK, but be careful by positioning the two antennas.

11. Internal micro has a light echo, better buy an external one. No Mather the model, they are all good.

12. I bought a TPMS with caps outside the tire and it works very well. For changing the battery they are more reliable than the others ones.

13. 4G reception is good but not great; you have to try yourself with positioning the antennas, depending on your car.

14. With analog radio you can store max. 24 FM stations and 6 AM

15. No such issue with my Navara.

16. Google works normally with the built-in SIM, just like on your phone or tablet. No issue!

17. Till yet I paired 4 devices (all are phones!) and no problem. Only BT-App is quite primitive although quick responding!

Hope I could help in your choice.
[Android Head-Units] velocity4:
The right answer is you can of course pair more than one device. You just can't use more than one device at the same time, or rather you cannot have two devices paired at the same time. You have to drop one to use the other. It does not support mesh.
[Android Head-Units] axicos:
3. I use with no problem a 64 GB SDXC card. I don't know if 128 GB cards can work with this unit.

Q3) And USB? For example: WD Elements Portable External Hard Drive Disk HD HDD 500GB???

5. You can use any rear camera you want; image is reasonable (depending on camera) and comes instantly on display. No boot- waiting time more.

Q3) Recommendations?

6. I don't recommend the Ownice own DVR, it has a poor, noisy image and limited features. I built it out and bought another one with better (6- ) lens and faster CPU

Q3) Recommendations?

10. Insert mode of the SIM is pictured on lid and really, you can't insert the card other way then this. It's quite simple to get it in and out; I change my card every week. Function is OK, but be careful by positioning the two antennas.

Q3) Can you post a pic? Thanks! Is it SIM, Micro-SIM or nano-SIM?

13. 4G reception is good but not great; you have to try yourself with positioning the antennas, depending on your car.

Q3) Where did you place them? Is the reception a HW issue or only antena position related?

14. With analog radio you can store max. 24 FM stations and 6 AM

Q3) Really? Can you post a pic or video? Also a picture of the station list menu?

I remember reading you were limited to 6 preset stations even on FM...

15. No such issue with my Navara.

Q3) Diesel? Did you previous radio not reset between ACC and IGN ON? Lights do not go off between ACC and IGN ON?

16. Google works normally with the built-in SIM, just like on your phone or tablet. No issue!

Q3) Google assistant or voice search?

17. Till yet I paired 4 devices (all are phones!) and no problem. Only BT-App is quite primitive although quick responding!

Q3) I understand pairing works for multiple devices, but can you have active pairing with two devices at the same time? E.g. 2 phones, 1phone and OBD2 device, Bluetooth headset and OBD2 device

As Velocity4 notes you can't do this on the Ownice devices.
[Android Head-Units] kbcinha1304:
There is no radio in Brazil.

Good Night, I can not make my device find a radio station, do I have to configure something specific for Brazil in the 1260?
[Android Head-Units] axicos:
Check your wiring! You should at least get something...

Maybe you can also test with an fm emitter if you can get one.
[Android Head-Units] TNS201:
I have the Ownice C500+ but I assume its mostly the same as the C500.

My question, is there a way to raise the max volume for media? This HU is actually not as loud as my stock one was. I can only go up to 30. Some songs it sounds good on and some it doesn't. Also any good equalizer apps besides the stock?
[Android Head-Units] axicos:
External amp my friend. This is the power it has. Get a decent amp and it will blow your doors away :)
[Android Head-Units] kekec777:
No sound?

Hallo everyone i just bougt an ownice c500 ol 7002F (Brand new) and have now struglet a couple hour...

It seems that there's no sound at all - i have double / trible checked the wires...

My car is a Hyundai I30 FD from 2010 (no stock amp - there was none amp out from the orginal stock stereo)

I have tried to measure the speaker cables with a multimeter (ohm) to see if there should be any changes when i volume up/down but the value is always at 3.xx something(cant remember the exact value)

I have tried to contact the support (no luck) some please some advice / guidance
[Android Head-Units] vgabbott@gmail.com:
I received the new Freedompop LTE Sims. One for my android GSM phone and the other for C500. Both Sims work, however, the android phone gets 4g but the C500 only gets 3g. Precisely folowed install directions. 3g was all I got with prior Freedompop Global data only sim. At least I have 3g back again. Do any of you techs out there know what issue might be?
[Android Head-Units] yurtesen:
[MENTION=2456913]vgabbott[/MENTION] do you know if the 4G frequency they use is supported by c500? (See wiki for supported band)

---------- Post added at 04:42 AM ---------- Previous post was at 04:35 AM ----------

or maybe you are color blind :) this may be a sign, you can test yourself online. :D
[Android Head-Units] axicos:
This sounds bad. Pun intended. Do you use a special adapter or connector? Have you tried measuring directly the headunit?

Hopefully you didn't get one with a defect...

By the way i just ordered my S7002G with a nice discount.

What is the difference between S7002G and OL 7002F - is it just the fascia or does it have something like a canbus built in?
[Android Head-Units] yurtesen:
[MENTION=7245455]Bob-Winlink[/MENTION] You used to support 1,3,7,8,38,39,40,41 does it mean that you removed support for 8, 38, 39, 40 and 41 ?

I don't think I will participate in your discount. I am not 100% happy with how Ownice handles software bugfixes and updates. Newer models do not have anything new but bugfixes over old models. It is just a bad business model for you to do it in this way. I would still like to get RDS on my old quad core!
[Android Head-Units] kekec777:
Hmm I don't know the difference.

I already have measured directly on the head unit output (cabkes) and that was the same ohm

I use the cables I got from ownice so nothing speciel there

I have contact Bob Huang (supporter) over Skype

Let's se what they will say, but any suggestions will be pretiat it.
[Android Head-Units] osmar.menezes:
Olá, tente isso no menu 1260... IC Type 1 (NX6686)

Zone 4 (Brazil)

Hello, try this in menu 1260 ... IC Type 1 (NX6686)

Zone 4 (Brazil)
[Android Head-Units] vgabbott:
Bob, I have c500 quadcore with 2/24 software update. Can you be more specific on cell Bands that work with my unit?
[Android Head-Units] blerko16:
hi have someone the steering wheel apk ?
[Android Head-Units] yurtesen:
[MENTION=355664]vga[/MENTION]bott you can download from play store 'MTK Engineering Mode' app from TheMonster and see the bands on your device. It is a very cool app and on some of my devices it is able to disable bands etc.
[Android Head-Units] dr2okevin:
Hello,

has someone a solution to the missing sound while the radio is on?

I hoped that another app works better, but i could't find any working app.

I Have the octa core version. The manual says that the radio reciver is a TEF6686 chip.
[Android Head-Units] janlwi:
Hi ! Is this update for 8core C500 ?

Ownice C500 4GUI01-1_v9_20170706.zip

Thanks
[Android Head-Units] anssc:
My C500 screen is very noise when reversing. Any idea to solve this problem?
[Android Head-Units] blerko16:
no its wired (Key1,2)
[Android Head-Units] vgabbott:
I had issues with backup image flickering. I discovered that an usb charger I had plugged in cigarette lighter was creating RF noice because it was just in front of video cable that was under dash. Moved charger and solved problem.

---------- Post added at 09:24 AM ---------- Previous post was at 09:04 AM ----------

Many warnings about this app. Might not be a good idea.