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Bluetooth Buggy?

Hello,
i have a MTCD_KGL Head Unit and i am not able to connect to my Bluetooth GPS ( Nokia LD-3W ).
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It is shown in the List of available devices, but no PIN Dialog shows up.
I have tried some Bluetooth Pairing apps, but they all wan't to enable Bluetooth first which does not respond.
Any Suggestions?

This has been documented, there is currently no fix.
http://forum.carjoying.com/thread-52-10-lollipop-bluetooth-problems.html

I have just flashed the latest image from May 4 and it seems that the bluetooth enabling bug is solved!

pmneo said:
I have just flashed the latest image from May 4 and it seems that the bluetooth enabling bug is solved!
Click to expand...
Click to collapse
Nice to hear. I'll have to give it a try on my head unit, as my bluetooth is very buggy as well.

Hmm, this is curious ... after flashing it worked. After rooting i got the same error

pmneo said:
I have just flashed the latest image from May 4 and it seems that the bluetooth enabling bug is solved!
Click to expand...
Click to collapse
@doctorman - Can i use this "KD" firmware on my Joying 10.1" mtcd unit to see if it fixed the bluetooth bug for me?
Also, can you send me a link to the 1.49.2 mtcd update compatible with my unit? I can't seem to find either of these things on an official joying page so I'm hesitant.

sterod said:
@doctorman - Can i use this "KD" firmware on my Joying 10.1" mtcd unit to see if it fixed the bluetooth bug for me?
Also, can you send me a link to the 1.49.2 mtcd update compatible with my unit? I can't seem to find either of these things on an official joying page so I'm hesitant.
Click to expand...
Click to collapse
technically any mtcD ROM should be interchangeable, I have not tried it.
here is the latest JY dMCU
dMCU https://mega.nz/#!R5QGFAgS!6SzIIdkxX...FRdnOTeu4q_y2k
--
Joying skipped the MAy update. I expect another update for mtcD from Joying soon.
--
Malaysk Got his mtcD unit and is working on it. I think he will use the latest KD ROM and add in JY goodies.
knowing Malaysk, I think we will have his ROM out in few days.

doctorman said:
technically any mtcD ROM should be interchangeable, I have not tried it.
here is the latest JY dMCU
dMCU https://mega.nz/#!R5QGFAgS!6SzIIdkxX...FRdnOTeu4q_y2k
--
Joying skipped the MAy update. I expect another update for mtcD from Joying soon.
--
Malaysk Got his mtcD unit and is working on it. I think he will use the latest KD ROM and add in JY goodies.
knowing Malaysk, I think we will have his ROM out in few days.
Click to expand...
Click to collapse
I see he posted the ROM today, I'm going to download and try it now. I get prompted for a decryption key on MEGA when I try to download that dmcu you linked.

sterod said:
I see he posted the ROM today, I'm going to download and try it now. I get prompted for a decryption key on MEGA when I try to download that dmcu you linked.
Click to expand...
Click to collapse
not sure why but here is the dmcu.
dont have time to test Malaysk ROM today but I will try it this week.
update us in his thread how it goes.
I am playing around with mtcB ROM5

I did try latest rom from Malaysk, nothing changed in concern of this bug.
Still hoping for this to be fixed! (Can't use Dashcommander for now, unless i use the USB-OBD2-Chip).
Huge respect to Malaysk for the huge benefits, we already gained by his work!

I ordered this product:
http://xtrons.com/pf75m211a-7-androi...edes-benz.html
Came with this Firmware: MTCD_GS_V1.49_1 Apr 28th 2016
Torque\Dash Command fail miserably, both applications indicate that bluetooth is NOT ON. They attempt to turn it on only to freeze forever.
I updated the MCU to MTCD_GS_V1.61_1 May 31 2016
Also rooted and installed Malaysk V4 rom.
Still no luck.
I've sent a barrage of emails to the seller both on Ebay and through their official contact info on their site, still no luck.
What steps do we need to take to get this addressed?
To the DEVS, has the issue been identified in code? Is it a inherent problem in hardware or is it ROM related\MCU related?
I've been reading in various forums that it is bluetooth LIB files that need to be added in..?
Would love some answers, I know i'm not the only one experiencing this, plus it would help me determine if I should return this altogether if no FIX is possible...

hashtowent said:
Still hoping for this to be fixed! (Can't use Dashcommander for now, unless i use the USB-OBD2-Chip).
Click to expand...
Click to collapse
Please can you confirm that Usb OBD2 works well on MCTD units?

Spoke with Xtrons again today.
They said to return the unit, but in the same breathe claimed it wasn't a hardware problem, which means it's software, they also said they'd ship out another one to me, which makes no sense if the software hasn't changed.
I asked them for a firmware update and they said that won't help.
Are they just bsing me at this point?

update:
I somehow got Torque to work, but torque sucks, it still says bt is off , but i used the bt mac address to connect.
Dash command has no option for this.
Essentially the core of the problem is the OS is telling 3rd party apps that bluetooth is off, and doesn't give an option to power on

^torque always worked, at least for me, since that particular app doesn't have a BT check for operation. Most 3rd party apps check if BT is enabled which is when the problem occurs. If you go in to the Torque app, you will see in adapter status, BT enabled fluctuating from on to off and back every few seconds. There is something weird going on in the background causing all this.

whitetigerlgt said:
^torque always worked, at least for me, since that particular app doesn't have a BT check for operation. Most 3rd party apps check if BT is enabled which is when the problem occurs. If you go in to the Torque app, you will see in adapter status, BT enabled fluctuating from on to off and back every few seconds. There is something weird going on in the background causing all this.
Click to expand...
Click to collapse
Yeah i concur, the bluetooth check is what's killing it. Torque sucks so bad though :|

I must have to change the name of my OBDII because have other than OBD.
Fortunately came with a HT-06 bluetooth and can acces and change name with AT commands with arduino, just have to connect the pins TX/RX and 3.3v and Ground from the HC-06 to arduino and with a simple code can change name on serial monitor. This is a great tutorial (not mine).
http://www.instructables.com/id/AT-command-mode-of-HC-05-Bluetooth-module/?ALLSTEPS

I have an Xtrons PF unit (GS). After updating to 1.61 as listed on the product page, I am now experiencing Bluetooth issues as well.
ODB Bluetooth adapter is shown in the pairing screen but repeated attempts to pair it fail without an error message.
Bluetooth pairs with my Nexus 6p but if calls are initiated from the handset, the Bluetooth phone dialer will crash.
Shame, as the rest of the OS seems snappy.

Rexbron! said:
I have an Xtrons PF unit (GS). After updating to 1.61 as listed on the product page, I am now experiencing Bluetooth issues as well.
ODB Bluetooth adapter is shown in the pairing screen but repeated attempts to pair it fail without an error message.
Bluetooth pairs with my Nexus 6p but if calls are initiated from the handset, the Bluetooth phone dialer will crash.
Shame, as the rest of the OS seems snappy.
Click to expand...
Click to collapse
so wait, what was your MCU before where bt worked??

It was GS_1.29 I believe. Dated around the beginning of April but I didn't record the MCU version prior to the upgrade.
Is bluetooth handled by the MCU?

Issues with date/time and radio stations not being saved with Head Unit MTCD_MX

Hello,
I recently got a Android Head Unit for my Citroen C4 2012 and it's a MTCD_MX.
I have some issues with date/time always resetting to 01-01-2012 00:00 after turning off the car and waiting a few minutes.
If I start car the within e.g. a minute or so both date and time are intact and correct, but if I wait more than minute to start the car, it reset to 01-01-2012 00:00...
Also I've tried to change the date and time settings in system settings by turning off the automatic date and time and automatic time zone.
But it makes no difference. I should say that if I keep the automatic settings as ON, the Head unit will retrieve time and date a lot quicker from the wifi-network in my car...
Also on another note I'm not able to save any radio stations, they are also being reset to default, and same above, if I start the car within a minute or so they are intact...
Is this something anyone can relate to and perhaps have suggestions on how fix this...?
I got a firmware update from the buyer but as many others here I'm not seeing it being applied.
I put the two firmware files on a sd card and the Head restarts by applying the update, but all dates and version numbers are the as before the update.
Perhaps I need to change the of the two files... Anyways any help regarding issues with date/time and radio stations are very much appreciated.
Here's my version info:
MTCD_MX_V1.71_1
Jul 19 2016 13:12:07
Android Version:
5.1.1
Kernel-Version:
3.0.10+
[email protected] #82
Fri Aug 19 20:4318 CST 2016
Version
rk3188-userdebug 22082016.13:25:35
Thanks
/Mattias

Hello,
From what I can tell, you have a problem with the wire connection. There is an always on wire and a wire that is working only when contact on. Check the connection plug. Better go to a specialized service.
Good luck!

Hi Kufu,
many thanks for the info.
My guess is that perhaps the two connectors from the main cable is in the wrong place in the head unit (see image below with number 1 and 2).
Perhaps I should try and switch places with these two connectors, what do you think?
Are there any chance of me short circuiting the head unit by doing this?
Below is a picture of the backend of the head unit with two connectors marked 1 and 2.
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"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Also there are no wheelkeys available in the settings menu but some of them work anyways, perhaps this could be related to the same issue?
Besides the two connectors from the main cable, there aren't a lot of cables I can connect wrong...
Many thanks.

Hello,
DO NOT switch those two connectors as you shown in the picture. One connector is for power supply, illumination, etc. and the other one is for the speakers. You should have a diagram on the unit. Again, DO NOT try to switch those two connector, you CAN damage the unit. One connector is power input, the other one is speaker output.
As I said before, on the POWER connector, there are 2 cables with (+) from the battery. One that is always on, the other only when contact is on. Sometimes those two wires must be switched in the connector. If you do not know how to identify them, go to a specialist. Is not big deal but if done wrong you can damage the unit.
Best Regards,
Kufu

kufu said:
Hello,
DO NOT switch those two connectors as you shown in the picture. One connector is for power supply, illumination, etc. and the other one is for the speakers. You should have a diagram on the unit. Again, DO NOT try to switch those two connector, you CAN damage the unit. One connector is power input, the other one is speaker output.
As I said before, on the POWER connector, there are 2 cables with (+) from the battery. One that is always on, the other only when contact is on. Sometimes those two wires must be switched in the connector. If you do not know how to identify them, go to a specialist. Is not big deal but if done wrong you can damage the unit.
Best Regards,
Kufu
Click to expand...
Click to collapse
Thanks Kufu
I've asked the seller about the "always on power", if this could be the issue.
The head unit should be for my make and model, which is Citroen C4 2012, it feels a bit strange to switch the wires in the connector.
I really do not think I should have to do this...
I'll keep you posted about the development.

mddsd said:
Thanks Kufu
I've asked the seller about the "always on power", if this could be the issue.
The head unit should be for my make and model, which is Citroen C4 2012, it feels a bit strange to switch the wires in the connector.
I really do not think I should have to do this...
I'll keep you posted about the development.
Click to expand...
Click to collapse
Hi,
I have the same exact problem, according to picture I have the same unit as yours. The only difference is the car model mine is Peugeot 508 2012.
I have been in contact with my local dealer since the first day about this. They've replaced the unit, replaced CANBUS, replaced connections so far nothing. Yest he erday, my dealer replace the unit and the canbus,. Same again, does not save time or the radio presets. Now I have another issue, I lost the front parking sensors as well.
I wanted to flash the ROM with one of the custom ROMs but in my case, it's not an option because it's an in dash without panel. There is no way to get in or control recovery menu.
Did you find any solution?
Thanks

metinb said:
Hi,
I have the same exact problem, according to picture I have the same unit as yours. The only difference is the car model mine is Peugeot 508 2012.
I have been in contact with my local dealer since the first day about this. They've replaced the unit, replaced CANBUS, replaced connections so far nothing. Yest he erday, my dealer replace the unit and the canbus,. Same again, does not save time or the radio presets. Now I have another issue, I lost the front parking sensors as well.
I wanted to flash the ROM with one of the custom ROMs but in my case, it's not an option because it's an in dash without panel. There is no way to get in or control recovery menu.
Did you find any solution?
Thanks
Click to expand...
Click to collapse
Hi,
according to the company I purchased the unit from, the solution according to them is to connect a second power connector that gives the unit low power and this should keep date/time and the saved radio stations...
I'm not buying this since the unit is sold as 100% supported by my make and model and all other connectors are 100% compatible. My own solution to the date/time issue was to use a 3G USB dongle that was fast enough to connect to the Internet and the date/time settings are set to get date/time from the network. This now works great since the unit has working Internet before bootup...
But the unit is not without issues, it seems that the manufacturer Witson (in my case) have left a few software issues that really need to be corrected. So I've sent a few emails to the manufacturer (with the permission of the official reseller). I'm waiting to hear back from Witson.

mddsd said:
Hi,
according to the company I purchased the unit from, the solution according to them is to connect a second power connector that gives the unit low power and this should keep date/time and the saved radio stations...
I'm not buying this since the unit is sold as 100% supported by my make and model and all other connectors are 100% compatible. My own solution to the date/time issue was to use a 3G USB dongle that was fast enough to connect to the Internet and the date/time settings are set to get date/time from the network. This now works great since the unit has working Internet before bootup...
But the unit is not without issues, it seems that the manufacturer Witson (in my case) have left a few software issues that really need to be corrected. So I've sent a few emails to the manufacturer (with the permission of the official reseller). I'm waiting to hear back from Witson.
Click to expand...
Click to collapse
Hi,
Finally, I sorted the loosing radio preset issue. It turns out there are two power cables on the car's original connector. Both of them are alive when the main switch is off. However, one of them cuts off when car goes into economy mode. That' was the one android head units was connected to. All I need to do is to switch the power cable on the supplied connector. which came with the head unit. Now, I do not loose any radio presets and GPS stays connected - No waiting time to connect after each boot. .
Hope this would be the same case for your make.
However I still have issues with the CanBus decoder.
So far, I tried two.
1) Bagoo (PSA) > all parking sensors are working. buttons on dashboard are well configured but cannot say the same for SW. Cannot answer the phone, and all right side buttons are operating to switch between open apps or change source). There is no door open warning and On dashboard monochrome screen radio displays as off so there is no feedback from CanBUS to car.
2) Simple (PSA 408) > Only rear parking sensors are working. all most all dashboard buttons does the same operation and it's not possible to turn off the radio. On the other hand displays if door(s) is open, can see the radio status on dashboard monochrome screen but only source type. Does not display any info about playing radio station or track number. It's also possible to configure Car configuration and memorized speeds for cruise control.
I decided to keep Bagoo because did not want to loose front parking sensors and more comfortable with all dashboard buttons. But it still annoys me I have to answer the phone only from screen or phone itself.
Which canbus are you using?
Thanks
Metin

metinb said:
Hi,
Finally, I sorted the loosing radio preset issue. It turns out there are two power cables on the car's original connector. Both of them are alive when the main switch is off. However, one of them cuts off when car goes into economy mode. That' was the one android head units was connected to. All I need to do is to switch the power cable on the supplied connector. which came with the head unit. Now, I do not loose any radio presets and GPS stays connected - No waiting time to connect after each boot. .
Hope this would be the same case for your make.
However I still have issues with the CanBus decoder.
So far, I tried two.
1) Bagoo (PSA) > all parking sensors are working. buttons on dashboard are well configured but cannot say the same for SW. Cannot answer the phone, and all right side buttons are operating to switch between open apps or change source). There is no door open warning and On dashboard monochrome screen radio displays as off so there is no feedback from CanBUS to car.
2) Simple (PSA 408) > Only rear parking sensors are working. all most all dashboard buttons does the same operation and it's not possible to turn off the radio. On the other hand displays if door(s) is open, can see the radio status on dashboard monochrome screen but only source type. Does not display any info about playing radio station or track number. It's also possible to configure Car configuration and memorized speeds for cruise control.
I decided to keep Bagoo because did not want to loose front parking sensors and more comfortable with all dashboard buttons. But it still annoys me I have to answer the phone only from screen or phone itself.
Which canbus are you using?
Thanks
Metin
Click to expand...
Click to collapse
That's good news
Not being able to save the radio stations are annoying.
The GPS takes a while to get a position so if that will speed things up as well, that's great.
I'm bit confused as to which cables I need to switch?
Are they on the connectors that came with the head unit, if so which ones?
I currently using PSA Bagoo, I've tried quite a few different Canbus settings but this is the best one I could find, although it's far from complete and working...
A handful of buttons are working, although all buttons for the climate control are working, it's just that the onscreen information shows the wrong temperature, it's off by 4 degrees Celsius (both on left and right side). And there is no warning or information regarding open doors etc.

mddsd said:
That's good news
Not being able to save the radio stations are annoying.
The GPS takes a while to get a position so if that will speed things up as well, that's great.
I'm bit confused as to which cables I need to switch?
Are they on the connectors that came with the head unit, if so which ones?
I currently using PSA Bagoo, I've tried quite a few different Canbus settings but this is the best one I could find, although it's far from complete and working...
A handful of buttons are working, although all buttons for the climate control are working, it's just that the onscreen information shows the wrong temperature, it's off by 4 degrees Celsius (both on left and right side). And there is no warning or information regarding open doors etc.
Click to expand...
Click to collapse
Yes, you need to do the switch power cable on the connector came with unit. (on big black side connected to car's original).
1) With a tester you need to find out the second power source on the original car's connector.
a) First turn on the switch to make sure the car is not in the economy mode then switch off and pull out the key.
b) With the tester you need to find the location of the power cables. (you should have two)
2) Determine which of the power cable goes to unit. > Only one of the power is going to unit through big black connector. The other power cable goes to empty leg.
3) disconnected big black connector.
4) On the big black connector (came with the unit) switch the power to the place where the other power comes in.

metinb said:
Yes, you need to do the switch power cable on the connector came with unit. (on big black side connected to car's original).
1) With a tester you need to find out the second power source on the original car's connector.
a) First turn on the switch to make sure the car is not in the economy mode then switch off and pull out the key.
b) With the tester you need to find the location of the power cables. (you should have two)
2) Determine which of the power cable goes to unit. > Only one of the power is going to unit through big black connector. The other power cable goes to empty leg.
3) disconnected big black connector.
4) On the big black connector (came with the unit) switch the power to the place where the other power comes in.
Click to expand...
Click to collapse
Thank you, I really appreciate the help
So basically it's the wrong power that's connected to the unit and I just need to switch cables?

mddsd said:
Thank you, I really appreciate the help
So basically it's the wrong power that's connected to the unit and I just need to switch cables?
Click to expand...
Click to collapse
Happy to help.
Yes, that was it!

Hi there,
found that topic by accident as I have same issued with radio stations / time.
Short question: According to what I found on the web, there are two pins (11 and 12), that give 12v power to radio. Am I right that I need to switch from Pin 12 to 11 on the car radio adapter to get time/radio stations beeing saved working?
BR
Christian

External volume knob button mapping

Hi all! Recently got an Android 8.0 based GS (XTRONS) unit, the TE706PL.
The main issue that I have with the unit is that it does not have a physical volume knob. I was OK with this when I purchased it as I planned on adding in my own. I have used an Arduino and a rotary encoder to 'replicate' a HID volume knob.
This is able to adjust the volume on my computer as well as on my Oneplus 3T with an OTG adaptor. However, when connected to the head unit, it does not work. I also tried connecting a standard USB keyboard to the headunit and found that all the keys work, including media play/pause keys, except volume up, down and mute do not function.
On the head unit, I used this app: https://play.google.com/store/apps/details?id=innerlife.keyboard.multilanguagekeymapredefiner&hl=en to check, and found the inputs were correctly being read as 'MEDIA_VOLUME_UP' , etc.
I tried this on the stock GS Android 8.0 ROM as well as Malaysk's Android 8.0 PX5 ROM. Is there anything that can be done to allow this to control the volume?
Any help much appreciated!

kaise123 said:
Hi all! Recently got an Android 8.0 based GS (XTRONS) unit, the TE706PL.
The main issue that I have with the unit is that it does not have a physical volume knob. I was OK with this when I purchased it as I planned on adding in my own. I have used an Arduino and a rotary encoder to 'replicate' a HID volume knob.
This is able to adjust the volume on my computer as well as on my Oneplus 3T with an OTG adaptor. However, when connected to the head unit, it does not work. I also tried connecting a standard USB keyboard to the headunit and found that all the keys work, including media play/pause keys, except volume up, down and mute do not function.
On the head unit, I used this app: https://play.google.com/store/apps/details?id=innerlife.keyboard.multilanguagekeymapredefiner&hl=en to check, and found the inputs were correctly being read as 'MEDIA_VOLUME_UP' , etc.
I tried this on the stock GS Android 8.0 ROM as well as Malaysk's Android 8.0 PX5 ROM. Is there anything that can be done to allow this to control the volume?
Any help much appreciated!
Click to expand...
Click to collapse
Look for a thread of @bose123. He programmed his own
Enviado desde mi SM-G950F mediante Tapatalk

ikerg said:
Look for a thread of @bose123. He programmed his own
Enviado desde mi SM-G950F mediante Tapatalk
Click to expand...
Click to collapse
Thanks! Doesn't seem to be a valid XDA username though... Do you know where the thread was by any chance? I've done a fair bit of searching

kaise123 said:
Thanks! Doesn't seem to be a valid XDA username though... Do you know where the thread was by any chance? I've done a fair bit of searching
Click to expand...
Click to collapse
Sorry is @Bose321
That thread is for controlling radio from external remote control.....perhaps contacting him you can get the solution
https://forum.xda-developers.com/showthread.php?t=3625038
Enviado desde mi SM-G950F mediante Tapatalk

ikerg said:
Sorry is @Bose321
That thread is for controlling radio from external remote control.....perhaps contacting him you can get the solution
https://forum.xda-developers.com/showthread.php?t=3625038
Enviado desde mi SM-G950F mediante Tapatalk
Click to expand...
Click to collapse
Thanks for the suggestion, but unfortunately it's not quite what I'm looking for. His app allows you to control the built in microntek apps with a remote or media buttons. My media buttons are working fine, it's specifically Volume Up, Down and Mute which do not work (Android system seems to flat out ignore the input)
I was wondering if, as a potential workaround I could use an app to remap keyboard inputs to volume level inputs? I haven't been able to do this with Tasker so far.

kaise123 said:
Thanks for the suggestion, but unfortunately it's not quite what I'm looking for. His app allows you to control the built in microntek apps with a remote or media buttons. My media buttons are working fine, it's specifically Volume Up, Down and Mute which do not work (Android system seems to flat out ignore the input)
I was wondering if, as a potential workaround I could use an app to remap keyboard inputs to volume level inputs? I haven't been able to do this with Tasker so far.
Click to expand...
Click to collapse
Volume on our units is not controlled by normal media commands on android. Is controlled by the MCU and therefore by any microntek service.
Ask bose321 for support as he investigated this.
Enviado desde mi SM-G950F mediante Tapatalk

kaise123 said:
I was wondering if, as a potential workaround I could use an app to remap keyboard inputs to volume level inputs? I haven't been able to do this with Tasker so far.
Click to expand...
Click to collapse
Try this https://forum.xda-developers.com/showthread.php?p=76032481

aluver said:
Try this https://forum.xda-developers.com/showthread.php?p=76032481
Click to expand...
Click to collapse
Thanks, I did actually find that. I have given this a go manually through terminal emulator. When run as standard user, I get the following:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
And when run with SU I get:
However nothing changes. I have tried this with a number of key codes that I found and none seem to have an effect. Am I running this incorrectly?
Any help definitely appreciated! I feel like I'm close here

kaise123 said:
Any help definitely appreciated! I feel like I'm close here
Click to expand...
Click to collapse
Try keycodes 273 (volumeUP) and 281 (volumeDOWN) from su.
If that works I can give you whole list
https://forum.xda-developers.com/showpost.php?p=67855471&postcount=17

aluver said:
Try keycodes 273 (volumeUP) and 281 (volumeDOWN) from su.
If that works I can give you whole list
https://forum.xda-developers.com/showpost.php?p=67855471&postcount=17
Click to expand...
Click to collapse
Thankyou!!! You saved me a lot of headscratching haha. My next step was trying to pull apart MTCManager to see what it could reveal....
Now... Tasker won't recognise my device is rooted, but that's a separate issue, may need to start a new thread at-least I know what I want to do is possible now.

Would it be possible to set this up using MTCD Tools? I'm very interested in figuring out how to configure this in mtcd tools.

kaise123 said:
The main issue that I have with the unit is that it does not have a physical volume knob. I was OK with this when I purchased it as I planned on adding in my own. I have used an Arduino and a rotary encoder to 'replicate' a HID volume knob.
Click to expand...
Click to collapse
I have a touch screen only (ISUDAR 7.1.2_GS PX3 2GB RAM) with no buttons at all and planned to do the same, so I'm interested in how this works out for you. My steering wheel does not have buttons, so I was going to replace it with one that does and see if it transmits on the CANbus because supposedly these ISUDAR units can adapt to it using the CANbus decoder box and app supplied with the head unit. If that didn't work on the vehicle harness my approach was to use Arduino to send CAN signals and read them with the CANbus decoder. I've not tried either yet, and am new to Arduino but seems possible. Do you have the CANbus decoder?
Also, does your unit have a SD card (or GPS) slot? Mine doesn't. If no, how/where did you place the flash files and start the system update to install the Malaysk ROM? I can't get much support from ISUDAR.

VigorPD said:
I have a touch screen only (ISUDAR 7.1.2_GS PX3 2GB RAM) with no buttons at all and planned to do the same, so I'm interested in how this works out for you. My steering wheel does not have buttons, so I was going to replace it with one that does and see if it transmits on the CANbus because supposedly these ISUDAR units can adapt to it using the CANbus decoder box and app supplied with the head unit. If that didn't work on the vehicle harness my approach was to use Arduino to send CAN signals and read them with the CANbus decoder. I've not tried either yet, and am new to Arduino but seems possible. Do you have the CANbus decoder?
Also, does your unit have a SD card (or GPS) slot? Mine doesn't. If no, how/where did you place the flash files and start the system update to install the Malaysk ROM? I can't get much support from ISUDAR.
Click to expand...
Click to collapse
ISUDAR are a seller AFAIK, your MCU will tell you what unit you have.
ALL MTCD/E units can use CAN Bus even if they are universal units - the data for all supported MTCD/E vehicles is in all MTCD/E MCUs, so you do not need anything other than a CAN Bus decoder for your car and a loom from your headunit manufacturerrto attach it to (or you could make one). Once you have these 2 things you just set the CAN Bus type in factory settings and your SWC should work.

VigorPD said:
I have a touch screen only (ISUDAR 7.1.2_GS PX3 2GB RAM) with no buttons at all and planned to do the same, so I'm interested in how this works out for you. My steering wheel does not have buttons, so I was going to replace it with one that does and see if it transmits on the CANbus because supposedly these ISUDAR units can adapt to it using the CANbus decoder box and app supplied with the head unit. If that didn't work on the vehicle harness my approach was to use Arduino to send CAN signals and read them with the CANbus decoder. I've not tried either yet, and am new to Arduino but seems possible. Do you have the CANbus decoder?
Also, does your unit have a SD card (or GPS) slot? Mine doesn't. If no, how/where did you place the flash files and start the system update to install the Malaysk ROM? I can't get much support from ISUDAR.
Click to expand...
Click to collapse
I don't have buttons on my steering wheel either. I also wanted to experiment with using CANBus signals to set the volume, but I was not able to find a reliable or well documented way to emulate canbus commands. In the end, I was able to get tasker to pick up the key inputs (Using AutoInput) and output the root command for changing the volume. I used an Arduino Pro Micro and the HID keyboard library to make an emulated keyboard input.
My device had a GPS slot only, but upon opening it I found that it had provision for an 'SD' slot. If you do not have a GPS slot there are other threads out there that might be able to help you, or if you are comfortable opening your device, see if it has the header to add one in yourself.

kaise123 said:
In the end, I was able to get tasker to pick up the key inputs (Using AutoInput) and output the root command for changing the volume. I used an Arduino Pro Micro and the HID keyboard library to make an emulated keyboard input.
Click to expand...
Click to collapse
I'm still not sure which direction I will take but am interested in more details on this solution if you would share. I'm a noob at everything you mentioned above. It gives me another idea to create a multi function knob like a simplified version all the new cars have for infotainment control. Rotate for volume, push for mute/power, forward for Home, back for Back, etc.
kaise123 said:
My device had a GPS slot only, but upon opening it I found that it had provision for an 'SD' slot. If you do not have a GPS slot there are other threads out there that might be able to help you, or if you are comfortable opening your device, see if it has the header to add one in yourself.
Click to expand...
Click to collapse
ISUDAR got back to me and said to load it on an empty USB stick instead. The rear of the case does have an open area marked for mounting a SD slot just no hardware populating it. I just had the unit opened up last week and added a homemade button to allow hitting the power button inside without needing a paper clip. If I open it up again what am I looking for with respect to a header?
I'm pretty keen to hack and customize more but struggle finding all the knowledge bits to connect the dots spanning software and hardware.

Did you manage to resolve this issue?
I've got the same head unit and the same issue, did you find a solution to the problem?
Thanks

kaise123 I have the Xtrons unit as well and need to do a similar solution to yours with a USB dial I have for volume and mute. It looks like you have root on this one. Can you direct me to instructions for rooting this unit?

frisbin said:
kaise123 I have the Xtrons unit as well and need to do a similar solution to yours with a USB dial I have for volume and mute. It looks like you have root on this one. Can you direct me to instructions for rooting this unit?
Click to expand...
Click to collapse
You need to be more specific, Xtrons are a seller not a manufacturer, there are no Xtrons units - units are identified by the MCU so you need to post that and the Andorid version youre running. There are also many guides to rooting.

typos1 said:
You need to be more specific, Xtrons are a seller not a manufacturer, there are no Xtrons units - units are identified by the MCU so you need to post that and the Andorid version youre running. There are also many guides to rooting.
Click to expand...
Click to collapse
Thanks for the instruction about that.
Like kaisel123, mine is labeled TE706PL (xtrons).
It shows Model px5, Android version 8.0.0, MCU version MTCE_GS_V2.78_3
Found some threads, reading through.

frisbin said:
Thanks for the instruction about that.
Like kaisel123, mine is labeled TE706PL (xtrons).
It shows Model px5, Android version 8.0.0, MCU version MTCE_GS_V2.78_3
Found some threads, reading through.
Click to expand...
Click to collapse
Right, you have a GS Oreo unit, theres a thread about rooting or Malaysk's ROM is rooted.

Question Ekiy T900 (android 10, FYT, UIS7862) questions

Good morning! Newbie here with a new android head unit with some frustrating problems! I have a 2009 Lexus GX470 and I picked up an Ekiy T900 with climate controls from Aliexpress. GX470s with navigation have limited radio options unless you do a non navigation climate control swap because the nav models have climate controls partially integrated into the factory head unit. The radio has been pretty good and is definitely a nice upgrade from the factory head unit since it has carplay and bluetooth but it still has a few issues that I'm hoping someone here can help me solve.
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First:
When first turned on, I had no audio. This seems to only be related to turning the car off and on as when the car stays on and I just reboot the unit, the audio functions properly. I can’t really remember how I figured this out but there was an app labeled “Car UI.” I clicked on it first and within the app is a radio, CD player, and something else, I forget. I clicked on the CD player and hit shuffle and then I all of a sudden started getting sound. It is not specifically the "shuffle" button, just hitting random buttons in "Car UI" gives you audio. I have no idea why this occurs but I have to do it every time I turn the car on. I can only assume that somehow this triggers the car amp? I have waited several minutes without pressing anything to see if it was just a time thing…but it wasn’t. I have also pressed lots of other buttons to see if that got me audio…but it didn’t. So for some reason you have to hit the Car UI button and go from there. This has been confirmed with another Reddit user who bought one at the same time I did. There is a factory setting for the amp which I turned on but it appears to have no play in this situation.
Video attached for reference:
Car UI/Audio
Second:
So I feel like this is pretty major considering this is an Android. I cant access anything Google related. Crazy right? I cannot log into ANYTHING google. Everything crashes at "checking info." Not just dedicated apps like Youtube, Play Store, etc but also if I try to log into Gmail when accessed through the browser. I also cant log in through the head unit settings. I have tried numerous fixes online such as deleting Chrome updates and updating Webview. I have also updated the head unit.
Video for reference:
Checking Info Crash Loop video
Apparently this is a super common issue with newer FYT units? I found some update files from other manufacturers that seem to be universal. I'll give that a whirl and report back.
Third/Final:
This is more of an annoyance rather than issue. the climate controls work great and have a clean UI. That being said, there is an issue with temperature adjustment. You have a full range of temperature selection but unfortunately it will only ever read “low” or “high.” Every time you press the button it most definitely changes the temperature a degree like it should, you just don’t get a specific degree reading. I don’t know why it does this or if it is 470/prado specific as I have seen similar radios with the same UI display degree changes (at least in Celsius).
Temp Control Video
And just in case this pops up when someone searches for GX470 radios, here is my review from ih8mud.
Review: Android H/U with Climate Control
Good morning everyone! Longtime reader, first time poster. I recently acquired a 2009 gx470 with navigation. I was super excited to get one of the “Tesla” screens…until I got one and realized how horrible they were. More on that later. Bear with me as I’m writing this on my phone while I have...
forum.ih8mud.com
Head unit information:

Also, can I update the mcu or change the firmware/UI/ROM? I’m using Agama which is fantastic but I’d like to change the factory UI to something better.

Has anyone else experienced this audio issue? I’m open to trying anything. This is really the only thing keeping this from being a fantastic unit.

Wreckingball911 said:
Has anyone else experienced this audio issue? I’m open to trying anything. This is really the only thing keeping this from being a fantastic unit.
Click to expand...
Click to collapse
Sorry to hear the unit has a number of bugs.
Curious, what did the reseller suggest, who is the reseller and what has your experience been with them from a support/afterwards perspective?
You might also find additional information in the other FYT threads, such as joyin FYT and that other oddball teyes badged units.

marchnz said:
Sorry to hear the unit has a number of bugs.
Curious, what did the reseller suggest, who is the reseller and what has your experience been with them from a support/afterwards perspective?
You might also find additional information in the other FYT threads, such as joyin FYT and that other oddball teyes badged units.
Click to expand...
Click to collapse
They sent an update that didn't work. So i tried the update posted in another thread, possibly in the Joying fYT thread. it worked to fix the google issue at least. There is still no update on sound but I now believe it to be a canbus issue. and theres no news on the climate control. I'd love to figure out the sound issue!
It is from Ekiy Autoradio Store. It is marketed as an Ekiy brand, not just the store. They are definitely trying to help but there is a language barrier that makes everything more difficult. But I'll give them credit for trying!
Does anyone know if I can use the canbus adapter box from a different radio or is that proprietary?

sergiobrzs said:
Hi,
this is link they sent me. From the contents of the file, I assume it's a patch that only affects the google account.
Make sure it is compatible with your car stereo.
My car stereo is the JY-UQB09N4G-H.
7862 upgrade for google account issue.zip
drive.google.com
Sergio
Click to expand...
Click to collapse
This update fixed my google issue. I went ahead and "rolled the dice" since it was for a different brand but it worked just fine. Unzip the downloaded folder to a flash drive and plug into you head unit. It will auto install. You do not have to unzip the file within.

Have you got ekiy to work? I am interested in a similar device.

Hello friends, I got my EKIY T900 and i think that is fantastic, I take the voice and 360 panorama options
I have a question, maybe you can help me whi this
I haven't installed the 360 cameras yet, but I have one of these chinese caeras as backup cam for reverse
When i put my car in reverse, the T900 triggers the 360 panorama in reverse mode but as I didn't installed that cams yet, I don't see anything
The backup camera is connected to the yellow RCA behind the unit for this purpose.
I'd like to know "how to" deactivate the 360 view system to let the unit start the standard aux video application when in reverse
Can you help me with this ?, I mean deactivate the 360panorama software ?
Thanks in advance !

mariodantas said:
Hello friends, I got my EKIY T900 and i think that is fantastic, I take the voice and 360 panorama options
I have a question, maybe you can help me whi this
I haven't installed the 360 cameras yet, but I have one of these chinese caeras as backup cam for reverse
When i put my car in reverse, the T900 triggers the 360 panorama in reverse mode but as I didn't installed that cams yet, I don't see anything
The backup camera is connected to the yellow RCA behind the unit for this purpose.
I'd like to know "how to" deactivate the 360 view system to let the unit start the standard aux video application when in reverse
Can you help me with this ?, I mean deactivate the 360panorama software ?
Thanks in advance !
Click to expand...
Click to collapse
What does the reseller suggest

marchnz said:
What does the reseller suggest
Click to expand...
Click to collapse
Oh, didn't ask to reseller, prefer XDA members, but I can try with the reseller indeed

I have bought the same UIS786 unit for my Chevrolet Spark
Octa Core 1.8 Ghz
Dual Cortex A75
Six Cortex A55
REAR CAMERA: BROWN wire called "Back" should be connected to PIN 6
STEERING WHEEL: PINK wire called KEY1 should be connected to PIN 16
STEERING WHEEL GND: Should be connected together with BLACK wire from PIN 14 to PIN 13
For the rear camera you have to take the +12v power directly from the rear light bulb.
Question:
Does someone already have root working on this unit or is there a Mod version available?
Regards,
B.W.

Yes, rooted with Magisk v23.0

mariodantas said:
Yes, rooted with Magisk v23.0
Click to expand...
Click to collapse
Do you have an instruction how to do this?

Will share the system image already rooted with you in PM tonight, but it will be handled AT YOUR OWN RISK, I don't take any kind of responsability

I don't see a PM yet, but thanks in advance!

Have been very busy in work, will do it tonight !, sorry for dalay !

mariodantas said:
Have been very busy in work, will do it tonight !, sorry for dalay !
Click to expand...
Click to collapse
No problem, take you time

bockywocky said:
No problem, take you time
Click to expand...
Click to collapse
https://drive.google.com/drive/folders/1hgqVuFQcNpFTvn5KoBQmZqvOYy4Ycymc?usp=sharing

I have a problem with my Ekiy T900 at standby: when ignited and engine off, the device switches off after approx. 30 sec. Is there a setting?

And another problem: The USB device will be scheduled sporadically on / off, so that playing music or movies finds a ugly end. The USB device setting is 2.0 (there are only 1.0 and 2.0).

Question Problem with AA and Carlink fixed on my Navifly M700S

I write this post because i think it will help some users who will be in the same situation as me. However, i take this opportunity to thank @surfer63, @mariodantas, and others (who i do not mention) for the commitment they put into these units.
I have a NaviFly M700S 8-128GB 9", whose manufacturer id = 116 and the uiid = 4, with Simple Soft XP canbus mounted on a Peugeot 308 of 2012, purchased in August 2022 to which I provide internet through the hotspot of my Huawei P30. Since the first days of possession i can say that i am very satisfied with this unit, except for some functions of the canbus that does not allow me to see all the info/error on the screen and that I can not control the air conditioning from the screen of the unit. For the rest, everything satisfies me widely.
From the early days i had AA that worked with USB cable connection but not wireless. But I must say that I never used/tried it because at that time i was not interested in having it that much. I didn't mind that much because i use AA very rarely, i.e. when I do long distances by car. But i was a bit disappointed for the fact that i had a great unit and that i could not have all its potential available. However, seeing that my son with his iPhone 14 could connect wirelessly i tried to succeed too, also because reading in various posts/forums many people with Android smartphones succeed.
I then tried to install various versions of Carlink 2.0 to no avail. Thinking that the problem was due to my old firmware, i updated the unit with the latest Mekede firmware without getting the desired results. Finally, i also updated my Navifly with the latest Joying firmware without results; my P30 wouldn't connect wirelessly.
Thinking and thinking about this problem this morning i started watching various videos about Carlink and uis7268 and i had the enlightenment. I saw a video in which he showed how to get the "developer settings" in AA and from there i set the option "add wireless projection". After that the connection with my P30 worked wirelessly with AA.
So now, from home I can open Maps, enter a destination, activate Bluetooth and Wi-Fi on the phone and as soon as I get in the car AA activates on the M700S showing Maps and making me listen to the radio and / or mp3 music of the media player. That's great.
But now I have 2 problems:
1) with AA enabled, then with Bluetooth and Wi-Fi enabled on the phone, the unit cannot have internet. If I turn on, the hotspot on your AA phone turns off.
2) in AA I can listen to the radio, mp3 from the media player but I can not listen to Spotify music, both because I do not have internet from the hotspot and because among the AA apps, Spotify is not there and I can not figure out how to put it.
Does anyone have any suggestions?
Here are photos of the features of the unit.
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"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
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Nothing to do, you're casting android auto wireless via wifi (some kind of wifi-direct) and you can't have both hotspot and wifi cast, annoying I know, but I don't see a solution for that, maybe someone here can help ?

Specy01 said:
But now I have 2 problems:
1) with AA enabled, then with Bluetooth and Wi-Fi enabled on the phone, the unit cannot have internet. If I turn on, the hotspot on your AA phone turns off.
2) in AA I can listen to the radio, mp3 from the media player but I can not listen to Spotify music, both because I do not have internet from the hotspot and because among the AA apps, Spotify is not there and I can not figure out how to put it.
Does anyone have any suggestions?
Click to expand...
Click to collapse
Thanks for your post.
1) That is indeed exactly how Android Auto does that. It is your phone that is simply extending its simplified screen to the head unit. And in a car with real AA, you still can use the radio on the background (as I do use AA a lot in the rental cars I drive for my work)
2) Spotify should be there. I still don't like AA but in the past weeks I also experimented a little with it, and spotify on my phone, is immediately available on my head unit when I connect my phone. I did that via USB and not via wifi, but that should not make any difference I think. But anyaway: did you try that? Does Spotify show up if you use a USB connection?

mariodantas said:
Nothing to do, you're casting android auto wireless via wifi (some kind of wifi-direct) and you can't have both hotspot and wifi cast, annoying I know, but I don't see a solution for that, maybe someone here can help ?
Click to expand...
Click to collapse
In fact I had deduced it, and you gave me the confirmation.
surfer63 said:
Thanks for your post.
1) That is indeed exactly how Android Auto does that. It is your phone that is simply extending its simplified screen to the head unit. And in a car with real AA, you still can use the radio on the background (as I do use AA a lot in the rental cars I drive for my work)
2) Spotify should be there. I still don't like AA but in the past weeks I also experimented a little with it, and spotify on my phone, is immediately available on my head unit when I connect my phone. I did that via USB and not via wifi, but that should not make any difference I think. But anyaway: did you try that? Does Spotify show up if you use a USB connection?
Click to expand...
Click to collapse
I tried the USB connection and Spotify was absent. Except I did a test. I turned off both bluethoot and wi-fi on, restarted the unit, then on the phone I started Spotify. While Spotify was started, on the phone I activated both bluetooth and wi-fi, at that moment Carlink started on the unit and I had AA with spotyfy playing. Now it appears to me among the AA apps

surfer63 said:
Thanks for your post.
1) That is indeed exactly how Android Auto does that. It is your phone that is simply extending its simplified screen to the head unit. And in a car with real AA, you still can use the radio on the background (as I do use AA a lot in the rental cars I drive for my work)
2) Spotify should be there. I still don't like AA but in the past weeks I also experimented a little with it, and spotify on my phone, is immediately available on my head unit when I connect my phone. I did that via USB and not via wifi, but that should not make any difference I think. But anyaway: did you try that? Does Spotify show up if you use a USB connection?
Click to expand...
Click to collapse
I can use the radio while carplay is connected in my headunit. Radio stops if I press play button to play music from Apple Music app.

In fact, I read somewhere (sorry don't remember) that this carlink 2.0 works much better with Apple CP than AA
For AA you have a paid solution in the Playstore, named: Headunit Reloaded

mariodantas said:
In fact, I read somewhere (sorry don't remember) that this carlink 2.0 works much better with Apple CP than AA
For AA you have a paid solution in the Playstore, named: Headunit Reloaded
Click to expand...
Click to collapse
In fact Mario, my son with his iPhone had no problem and connected instantly.
As for me, I have no intention of spending money on AA, it is enough for me as it is if it works, for what little I will use it.
Small OT I have to see if I can get the unit to make calls, I haven't tried them yet. And I add that on my P30 I have never used "OK Google" and I even believe that it is disabled. Tomorrow I will try.

Spotify needs to be installed on your Huawei P30 to work with Android Auto.
Remember Android Auto is running the apps on your phone and not the Spotify app installed on the heat unit.
You may need to open Spotify before starting Android Auto.
I think the only way to have wireless android auto with internet access is to use a SIM in the head unit.
I don't think there's a way to have your head unit connected to your phones hotspot with Android Auto enabled.
Wired Android Auto works with hotspot enabled on your phone no problem.

j0hn83 said:
Spotify needs to be installed on your Huawei P30 to work with Android Auto.
Remember Android Auto is running the apps on your phone and not the Spotify app installed on the heat unit.
You may need to open Spotify before starting Android Auto.
Click to expand...
Click to collapse
Yes I have AA installed on my phone and I opened Spotify before setting the phone wi-fi and bluetooth. After that I finally have Spotify among AA apps..
j0hn83 said:
I think the only way to have wireless android auto with internet access is to use a SIM in the head unit.
I don't think there's a way to have your head unit connected to your phones hotspot with Android Auto enabled
Click to expand...
Click to collapse
Yes, you're right. But I don't want to spend money on another SIM. I will settle for using the internet when I don't use AA.

j0hn83 said:
I think the only way to have wireless android auto with internet access is to use a SIM in the head unit.
Click to expand...
Click to collapse
That's exactly what I do, I have a 2nd phone line that I don't use and so put the sim in the car