yashsingh1/xdaforums huggingface dataset:
[MTCD Android Head Units General] SkyBeam2048:
Not sure about this specific model. Though I have never yet seen an antenna which requires 16V (which would require a voltage converter). I guess most of them rather have input voltage specification ranges like [12V-24V] so it does not matter which voltage you supply.

I would try to inject 12V phantom voltage directly from the android head unit (blue AMP connector cable).

In most cases I know it does not matter whether you supply the phantom voltage on the FM, DAB or GPS line. For simplicity I would recommend you to get an FM/DIN injector and just phantom-power the antenna via FM line. Something like this.

NOTE: This is not a recommendation but rather the first google result I found for a DIN to fakra phantom voltage injector.
[MTCD Android Head Units General] NikosPot:
Red and black from the dashboard? You mean the cables for connecting any car stereo? They get warm after installing the camera? That wouldn't make sense. Maybe the problem was even before the camera? The camera uses very little current so it is unlike to make any difference in any cable that is already in the car or the unit. I have measured mine, it draws only 100mA. (doesn't have any led, nightvision though, these would draw more current)
[MTCD Android Head Units General] SkyBeam2048:
Not really sure about this as I definitely got two DAB+ boxes with 8-pin cables but different pinouts. Both vendors asked me which Android version I have. Likely this question is related to PX3/PX5 board setup as the unit could be equped with either of them. Perhaps the data transmission is different (USB vs. RCA?) depending on SoM type. As I don't have schematics for the pinout I cannot tell what pin is used for what without reverse engineering it. But what I can tell is that I definitely got different cables with different pinouts. I suspect the vendor of my HU where I ordered the HU with Android 6 (PX5) upgrade included the wrong cable.

Anyway both DAB+ boxes with 8-pin connector did not work so I simply went for the USB solution which works fine now.

This is not entirely true. I agree that most boosted antennas do also apply filters but depending on the antenna you might still get the DAB+ frequencies (most likely unboosted). This also happened to me. DAB+ worked with the OEM roof antenna, but the signal was weak. So installing a DAB+ antenna with 20dB gain improved the reception a lot.

Anyway the conclusion is the same: Dont' use splitters, amplifiers, boosters... just go for a decent roof antenna with built-in amplifier for DAB+ frequency range.
[MTCD Android Head Units General] typos1:
Sorry, I thought you meant the antenna cables. The cables that attach the DAB box to the unit vary, not between processor types, but between manufacturer - some use different pin outs/number of pins/sockets etc - you need to get one thats specific to your unit manufacturer. Some, like the Joying one use usb, its only this type that can be used with any unit, others you must choose the correct one for your unit manufacturer, but the Android version is not relevant. It maybe relevant to the vendor if they, for instance sell KLD Android 6 octacore devices and KGL Android 7 Nougat devices, for example. It has NOTHING to do with the Android board only the motherboard - each manufacturer uses their won motherboard design. Also it depends on the age of you motherboard - if you have one that pre-dates the availability of DAB from that manufacturer then you will never be able to get a DAB box that attaches to one of the ports on the back of the unit to work because the motherboard was never designed to work with DAB.

Most splitters you see advertised state that they cant be used with OEM boosted antennas, I think the fact that you only got a weak signal proves this.
[MTCD Android Head Units General] bettuccio:
I attached the front camera behind the RCA extension and the 12 volt extension that goes from behind the car radio and goes into the storage compartment. I leaned the wires (negative and positive) 12 volt to see if it turned on and turned on. I can open the image from apk Avin. Now I want to know if I leave it always attached what happens because I noticed that the threads after a few minutes overheat.

see red circle. there it overheats
[MTCD Android Head Units General] kovlaszlo:
Xtrons PX5 (GS) users!

New firmware available! The English name of the file is very promising!

GS-PB系列 Android 6.0 软件 更新蓝牙SD-968风动的蓝牙音量曾加的回音问题和手机互联更新兼容问题与YOUTOBE不能播放720P视频 问题_更新PX5_6.0(20171023）

GS-PB Series Android 6.0 Software Update Bluetooth SD-968 Pneumatic Bluetooth Volume Zengjia echo problem and phone Internet update compatible with YOUTOBE can not play 720P video problem_Update PX5_6.0 (20171023)

Source: http://forum.xtrons.co.uk/forum_posts.asp?TID=144924&title=pb7646bap-google-maps-voice-problems

Download link: https://1drv.ms/u/s!AjrY0uqbW_kBg3R4ucWNKEBufShd
[MTCD Android Head Units General] NikosPot:
That explains a lot. I thought that the overheat was on the car's cable that you took the power for the camera. I think that inside this thing that you show in the photo, there is a power regulator for the camera so it is normal to produce some heat. Is it so hot that you can't even touch it? That should't be normal I think.
[MTCD Android Head Units General] kasall7:
Head unit with px5 firmware malaysk 5 mcu HA265f, there are 2 USB connectors on the back panel, one is connected to the regular usb / aux and the other is through an extension to the car front panel. The problem is that the USB occasionally fall off. If you pull out both usb on the back panel and then reconnect it helps, but only for couple of days. If you reconnect only one then also the same. Does anyone know what might be the problem?
[MTCD Android Head Units General] bettuccio:
it overheats but not so much. I can think that this depends on the various tests I've made open and close AVin many times ..! I will try to use 2 tear-off and attach the wires without breaking anything.
[MTCD Android Head Units General] Bose321:
Thanks, that's actually the one I was going for.

Thanks. That's what I have now, but not sure if the new antenna was the same.
[MTCD Android Head Units General] typos1:
I would just connect it and send it back if it doesnt work.
[MTCD Android Head Units General] NikosPot:
What about DVR cameras? Every seller says that it supports specific models that you can buy from them but their prices are not so good. What should I know for buying a cheap USB camera for DVR recording that it will be compatible with these units?
[MTCD Android Head Units General] djbubbbbbz:
i just thought they would move like my other car did when you turn the steering wheel - just helped if cornering etc thats all
[MTCD Android Head Units General] DJorgio:
Does anyone know if the reverse overlay (ruler) can be adjusted? Also, is there a known decent USB camera that can be used to work with Sygic?

Thanks
[MTCD Android Head Units General] julien_blanche:
Hi, does anybody know when the unit turns on, couple of apps launching automatically like radio, music, video app then avin interface at the same time ?
[MTCD Android Head Units General] Danno1975:
Yes in car settings or factory settings. COde for factory is normally often 126
[MTCD Android Head Units General] DJorgio:
Thanks but I only see turn on/off, not to adjust? it's out of alignment with my oem camera.
[MTCD Android Head Units General] argus357:
Try this https://www.carjoying.com/blog/joying-head-unit-after-sale-support/28.html
[MTCD Android Head Units General] athakur999:
Is it possible to adjust the volume level for normal Android apps? Right now I don't have very fine grained control of the volume - one click above 0 is about my normal volume and by 3-4 clicks above 0 it's so loud it's distorting. Using the "voice" menu under factory settings, I've been able to reduce the volumes of the radio and BT audio functions so that I have more useful volume control, but I can't find a setting that affects the volume of normal Android apps (eg. Google Play Music) running directly on the head unit. There's a "system" option under voice but it doesn't seem to affect this.
[MTCD Android Head Units General] FauxDreams:
Factory settings, 126. Last page on the right. Somewhere down the bottom you can adjust amplifier DB from memory, I assume it'll be 0. Turn it down, Go for -12 then hit apply. Unit will reboot.

Cheers

Mat
[MTCD Android Head Units General] djbubbbbbz:
Urgent help

Dead unit

I went shopping on the way everything normal

Jumped back in the car black screen no start up. My usb don't light up so guessing no power. Anyway to get this back on?
[MTCD Android Head Units General] phazei:
Any word if 7.1 will ever come out for the PX5? The PX3's had it for a while now.
[MTCD Android Head Units General] Danno1975:
It’s in factory settings you can turn off the ruler lines. I’ll take a photo later
[MTCD Android Head Units General] DJorgio:
Got it, so I just gotta draw the right layout, I had a go tonight, will need some more trial an error to get the right adjustments for my camera, but now I know, thanks.

Any idea how to get a camera working with apps, I tried a few but only works with the DVR app, guessing by design.

Would be cool to use my sygic dvr and augmented navigation.

Cheers
[MTCD Android Head Units General] Danno1975:
Not sure on that. It here is how to turn off the head units lines

Settings/car/extra settings

View attachment 1
[MTCD Android Head Units General] DJorgio:
Cheers Danno, I know how to turn it on and off, it's just misaligned with my camera, so as Argus mentioned, I need to redo the image file to suit my reverse camera.

It's a shame there is no app to do it, would be so much easier.

Thanks though.
[MTCD Android Head Units General] Danno1975:
Ah I see sorry good luck
[MTCD Android Head Units General] Bose321:
Rumors say there will be no 7.x version, but we will skip to 8.x.
[MTCD Android Head Units General] :
he write this on on 12th October 2017

it comes when it comes, maybe this or next month
[MTCD Android Head Units General] c.Aurel:
Hello,

for information I asked my mechanic during the annual maintenance of my C4 to changed the parameter indicated 'emission sound' in the BSI and BIP of parking sensors with first gear are back. (Follow forum in french planet-citroen. sorry but I am not allowed to put link to forum)

You just have to modify in BSI

2. AAS coding

Sound emssion => Switch from HP to Other

after you can remove the buzzer plugged behind can bus decoder box otherwise you will have double BIP.
[MTCD Android Head Units General] bettuccio:
So you need to make a change on the control unit? Did you go to the licensed Citroen dealership? Meanwhile, I'll look at the forum where you pointed me. in what section should I look?

http://www.planete-citroen.com/forum/forumdisplay.php?f=479&page=2
[MTCD Android Head Units General] athakur999:
Thanks Mat that worked perfectly!
[MTCD Android Head Units General] cayenne2007:
Hi

i had the px3, upgraded the board and now have a px5, updated mcu to 2.54 (MTCD_KGL) and just updated the firmware to latest i could find on this forum.

i have a problem with bluetooth (who doesn't) as in the device recognises bluetooth devices and puts them in the available list but even when these devices are then removed or are not available they still show up, any idea how you can remove these "available devices"

for instance i passed a skoda today and i clicked on bluetooth refresh while next to it and it picked up on the skoda bluetooth connection/device and it is now in the list

my other problem is that i cannot connect to the elm327 odb2 adaptor i bought from erisin, it appears in the list (although as 7odb2 but my iphone also comes up as 7iPhone so that just seems to be a prefix of somekind)

I like to clear the list of available bluetooth devices (as soon as i click on it is prompts me to pair but it never pairs to any of these bluetooth devices

is factory reset the only option?

cheers
[MTCD Android Head Units General] typos1:
Are you familiar with how to set up BT OBD on these units ?
[MTCD Android Head Units General] cayenne2007:
seems like I am not :)

I cannot do the same for the elm327 odb2 device and the torque app, it redirects me to bluetooth settings and suggest i pair the device but that does not work for me.

I searched through these forums before posting but did not find another way of connecting the ODB2 device to my HU.
[MTCD Android Head Units General] djbubbbbbz:
126 does not work for me just says incorrect code, any other codes so that i can access my volumes ? sat nav is very low compared to radio

To resore to factory mine system uses 3333
[MTCD Android Head Units General] typos1:
I would check [MENTION=744370]ikerg[/MENTION]'s thread about RK3368/PX5 units - he describes how to pair OBD devices there - I use USB for OBD personally, so I dont take too much notice of BT/OBD posts, I can tell you that OBD devices usually need to have "OBD" in their title to pair and also that you should pair via the BT heading in settings.
[MTCD Android Head Units General] Danno1975:
Mine would never ever pair via the settings it messed the name up and did nothing despite clicking pair. Randomly I managed to connect it via the phone app. But have found it can only use one bt device at a time and so I can’t use it as it means I have no phone.

Bit crap. But it’s in a van used for camping so not essential. If I get any faults I can connect and review and that’s all I really need I guess.
[MTCD Android Head Units General] typos1:
You CAN connect to a phone and an OBD device at the same time, there are instructions all over the forums on how to do it.

USB is better for OBD anyway - its faster, more secure and BT is deigned for mobile devices and neither the headunit or the OBD dongle are designed to be mobile.
[MTCD Android Head Units General] Danno1975:
I’ll have to look it up as it wouldn’t work for me, and the seller said it only runs 1 bt device at a time. Will have a search.

---------- Post added at 09:56 PM ---------- Previous post was at 09:37 PM ----------

Could you direct me? Trying to search in Tapatalk and no luck and as usual us my the web site causes spam emails to pop up I. Safari making it impossible to use the forum.

---------- Post added at 10:00 PM ---------- Previous post was at 09:56 PM ----------

Mine does the same adding a 9 [emoji23]
[MTCD Android Head Units General] typos1:
Try searching [MENTION=744370]ikerg[/MENTION]'s RK3368/PX5 thread.
[MTCD Android Head Units General] cayenne2007:
ok, searched in for ikerg post but could not find it but did found this and managed to get it to work so thanks for the pointer

https://xdaforums.com/android-auto/...-head-unit-discussion-thread-t3573881/page193

post 1929 pointed me in correct

i opened up the bluetooth app and found all the paired and unpaired devices, got rid of the skoda one :D and samsung TV entry as well as someones fireplace!!

and I then spotted the ODBII (without 7 prefix, that just seems to be when you use android,settings,bluetooth) and paired it et voila opened torque and it connected immediately

thanks so much, have spend quite a bit of time getting this to work and pleased it is now working, lots of dials and graphs to configure
[MTCD Android Head Units General] Danno1975:
Is this allowing you to run the BT OBD and phone together.

---------- Post added at 11:21 PM ---------- Previous post was at 11:08 PM ----------

When u say via the. BT app you mean the phone app?. I did that but then can’t get phone and OBDII to work together [emoji51]
[MTCD Android Head Units General] cayenne2007:
good point, did not see that caveat till now, went back out again, neighbours think I am insane idling the car on the driveway every evening trying to get this odbII stuff sorted out,

anyway, started torque app, it connected

i had to pair my iphone again as it somehow lost connection (could be because pairing code changed from 0000 to 1234) and i was able to play music via bluetooth and went back to torque and it was still registering data from the ODBII adaptor

result!

I never make phone calls when driving so did not try that feature but should be similar i reckon?
[MTCD Android Head Units General] typos1:
Yes - ALL MTCB/C/D/E devices allow this.
[MTCD Android Head Units General] Danno1975:
Lol spent a few nights idling the van sorting mine out mate. Didn’t think of re-pairing the phone.

Will try it.

Also saw a post where someone paired the obd with a phone then it paired with the hu. No one understands that[emoji51] butnit worked.

Got an iPhone tho so not helpful as they won’t even see an OBDII .

I didn’t notice connecting the OBDII had bumped the iPhone till the wife called on the way to work and needed up taking the call on my watch [emoji51]
[MTCD Android Head Units General] typos1:
Cool, happy to have helped.
[MTCD Android Head Units General] Danno1975:
Apart from mine it seems
[MTCD Android Head Units General] cayenne2007:
It is an app that is just called Bluetooth and it shows a list of all paired (and unpaired) devices and allows you to delete paired and unpaired devices. Does not look like it is a phone app but maybe it is but I never use it for phone calls

I also have BT ad2p app for music streaming
[MTCD Android Head Units General] typos1:
What device is yours ?
[MTCD Android Head Units General] Danno1975:
Well I’ll say it’s an Erisin something or other 8 core thing. What it’s the actual information that denotes what it is though?.
[MTCD Android Head Units General] cayenne2007:
scroll down a bit and look where it says MCU version and if you have MTCD_XXX mine is a KGL but there are a few other options as well, the first post in this thread shows you the various vendors/resellers (hope that is the right terminology)
[MTCD Android Head Units General] Danno1975:
Hello

Does this help?
[MTCD Android Head Units General] Danno1975:
Yeah a KGl, in it now and phones connected and OBDII is plugged in but torque app can’t see it :(
[MTCD Android Head Units General] typos1:
You have a KGL like [MENTION=8563108]cayenne2007[/MENTION].

Cant see why you cant get both working.

---------- Post added at 09:48 PM ---------- Previous post was at 09:47 PM ----------

Ah, thought you d be able to do it. Try looking in Torque settings, try rebooting.
[MTCD Android Head Units General] Danno1975:
It’s weird in settings it shows the The obd as DOBDII and is connected. Can’t disconnect or anything here. I also have an app called Bluetooth with a phone icon which is the handsfree app, this shows my two phone with the iPhone connected and options to disconnect and delete and the OBDII bit not connected and with no option to do so only delete. And in the torque app it can’t connect to the OBDII at all.
[MTCD Android Head Units General] typos1:
You dont want the BT phone app, cos its not a phone youre trying to use . . .

But there is plenty of info in the MTCD forum going back years on how to get it working.
[MTCD Android Head Units General] Danno1975:
I know lol it’s the only way I could get the OBDII to connect

---------- Post added at 11:53 PM ---------- Previous post was at 11:52 PM ----------

I saw a post with a third party app for BT management and might try that as the android settings for BT is pants [emoji23]
[MTCD Android Head Units General] typos1:
Dont think the 3rd party app will work, just search xda.
[MTCD Android Head Units General] Danno1975:
What does your Bluetooth app look like on your HU?. Thanks
[MTCD Android Head Units General] typos1:
Its not relevant cos you need BT in settings NOT the app !
[MTCD Android Head Units General] Danno1975:
I get that but the Bluetooth bit in settings does nothing, however Cayenne mentioned he followed an app that took home to a list where he could add and delete BT connections. Something you can’t seem to do in system settings.

And as I found before I managed to get OBDII working via my by app (phone) but obviously the wrong way as it bumped my iPhone.

Thanks anyway. Thought I was into something [emoji23]. Still nice sitting in the van listening to limp bizkit whilst I fiddle. Wife gonna moan when i go in[emoji51][emoji23][emoji23][emoji23]?*♂️
[MTCD Android Head Units General] cayenne2007:
Will take a picture tomorrow and upload it here
[MTCD Android Head Units General] Danno1975:
Cheers fella. Must be able to get it working.
[MTCD Android Head Units General] typos1:
Again, you can find this out by searching the MTCD forum or googling "xda MTCD BT OBD", but BT OBD devices need to be named "OBD".
[MTCD Android Head Units General] Danno1975:
Yes but not in Tapatalk and not in safari as I get terrible pop ups.

Need to get on a laptop. So I can do a full search.

Currently the wife’s still doing a lazy sons homework on mine [emoji23]
[MTCD Android Head Units General] ArtfulCodger:
Just to change the subject slightly. I loaded the version of Google maps that works offline and it tells me it will only work for 30 days unless updated. The vehicle sometimes doesn't get used for weeks but then might go somewhere with no mobile or Internet connectivity.

So how do I keep using the working version without it dying after 30 days?

edit...version 9.46.2...but says will expire or something if not updated within 30 days.

searched a bit more...sorry...so I can turn off autoupdate either within the Playstore or via titanium. So I'll try those...
[MTCD Android Head Units General] Danno1975:
Managed to get phone and OBDII working today and finally can use torque and iPhone at the same time. Not sure what I did, lots of deleting pairings and re pairing, unplugging the OBDII dongle and turning the Van on and off.

One thing of note. The Bluetooth in system settings did nothing, it doesn’t even display pairings correctly adding a 9 in front. And whilst it gives options to forget etc it does nothing.

I connected and paired things via the Bluetooth handsfree app.

Oh and I changed the BT code to 1234 to match the dongle.

All the above could be for nothing if when I use it next it’s all messed up again [emoji23][emoji23][emoji23][emoji23].

Need to tinker with the torque app now. My main thing is dpf temp and pressure and understanding and faults.

Don’t think I need to know how fast my 140bhp van can accelerate etc [emoji3]
[MTCD Android Head Units General] typos1:
THIS is why it wouldnt work - the pairing code has to be the SAME on both devices, the the whole point of a security code is that it matches !!
[MTCD Android Head Units General] cayenne2007:
ok, you are right it is the phone app, i never use it for phone calls so did not realise till i opened it up and saw the dials etc, sorry

it is the top left app that just says bluetooth

but i can stream music and use torque at the same time, have not tried a phone call.
[MTCD Android Head Units General] Danno1975:
Never seen that before, my oem Head unit, my headphones, etc. All have different codes. I originally paired the dongle by inputting it’s 1234 code in the head unit and it worked despite the phone being paired on the HU default 0000 because when I paired the iPhone it asked for the code and I added it.

I guess with this head unit it doesn’t consider itself an accessory the way my oem head unit did and I further assume that would restrict adding other accessories with their own firmware codes, ie my sound bar, a set of head phones etc. (As an example, I have no use for pairing them)

Sounds rubbish though as if this Android was running in a tablet the restricted BT security flexibility would make it pointless, because unless all your BT items with fixed codes had the same code you wouldn’t be able to use them.

As it is I only need to run these two items and the iPhone let’s me authorise on itself.

---------- Post added at 02:01 PM ---------- Previous post was at 01:57 PM ----------

Thanks thought it was, cracked it this morning.

So the chap saying you can’t pair it in the phone app was wrong, it the only way to pair stuff [emoji23].

Also the BT thing, in my experience each pairing is unique so no two devices need the same code as long as they were paired using a shared code.

Ie on my iPhone no two devices were paired with the same pin code.

Anyway just happy it’s working.
[MTCD Android Head Units General] Danno1975:
Ps I can see the confusion on my UI the same app has an iPhone style icon