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XTRONS D717AL Screen Problem

Hello XDA members,
I have been following XDA for almost a decade and now came my time to ask for a help.
I bought few months ago XTRONS D717AL. First of all, great player, awesome radio tuner. Catches many stations I couldn't with my old Audiovox and Clarion. It comes With Adroid 5.1.1 and Intel chip. Model number says: Full AOSP on Sofia. MCU Ver: HY_SFY170224EF.
But since day one I noticed a weird display actions. Radio starts right after I start the car engine, display pops-up and on random basis, sometimes the display lights up, sometimes not. It takes about 20sec to load the OS and apparently, the touch screen is working. I know where the Quick settings are, if I pull the top navigation panel down when the screen is in a working state. There is a Light button, which enlights or darkens the screen.
In a dark state (blank), if a pull the navigation panel down when the screen is dark and press the Screen button, screen enlights. I know approximately where this Light button is and pressing it screen enlights. That makes me think, that the screen darkness goes to value 0 at some point before even the OS load.
I have rear camera and DVR attached, but since I took everything away today except the ISO wiring harness, it makes me think that these AV in signals are not the issue. I even took away the reverse camera control cable, illumination cable, and GPS antenna. Brake In cable is fine attached.
Last week I tried to factory reset the unit – no luck.
Flashed with a firmware from the Xtrons tech support – no luck.
I recorded a video today which I uploaded on youtube (I can't post links yet, too young to do that )
Search "XTRONS D717AL Screen Problem".
If anybody ran into such a problem and a solution, will be much appreciated to share here.
Many thanks.
Edit: I just noticed, that upon switching off the radio, the dark display flashes for a half second on its way going in. Possible display cable issue?

Xtrons d717al
zhekozhekov said:
Hello XDA members,
I have been following XDA for almost a decade and now came my time to ask for a help.
I bought few months ago XTRONS D717AL. First of all, great player, awesome radio tuner. Catches many stations I couldn't with my old Audiovox and Clarion. It comes With Adroid 5.1.1 and Intel chip. Model number says: Full AOSP on Sofia. MCU Ver: HY_SFY170224EF.
But since day one I noticed a weird display actions. Radio starts right after I start the car engine, display pops-up and on random basis, sometimes the display lights up, sometimes not. It takes about 20sec to load the OS and apparently, the touch screen is working. I know where the Quick settings are, if I pull the top navigation panel down when the screen is in a working state. There is a Light button, which enlights or darkens the screen.
In a dark state (blank), if a pull the navigation panel down when the screen is dark and press the Screen button, screen enlights. I know approximately where this Light button is and pressing it screen enlights. That makes me think, that the screen darkness goes to value 0 at some point before even the OS load.
I have rear camera and DVR attached, but since I took everything away today except the ISO wiring harness, it makes me think that these AV in signals are not the issue. I even took away the reverse camera control cable, illumination cable, and GPS antenna. Brake In cable is fine attached.
Last week I tried to factory reset the unit – no luck.
Flashed with a firmware from the Xtrons tech support – no luck.
I recorded a video today which I uploaded on youtube (I can't post links yet, too young to do that )
Search "XTRONS D717AL Screen Problem".
If anybody ran into such a problem and a solution, will be much appreciated to share here.
Many thanks.
Edit: I just noticed, that upon switching off the radio, the dark display flashes for a half second on its way going in. Possible display cable issue?
Click to expand...
Click to collapse
hi. do you know how to acces recovery mode or button combination? to do a factory reset. and about your problem probabli you have problems with display cable. my car stereo works just fine. THX

andreiutzu21 said:
hi. do you know how to acces recovery mode or button combination? to do a factory reset. and about your problem probabli you have problems with display cable. my car stereo works just fine. THX
Click to expand...
Click to collapse
I have never tried to go to recovery of this unit. But, I found another topic here:
https://forum.xda-developers.com/an...button-combination-to-enter-recovery-t3391682
Regarding my problem, I returned the unit and it was replaced with a new one since it is still in warranty period.

backup camera during boot on Eonon unit

I just chatted with Eonon and they told me that none of their units show the backup camera while it's booting... That's a blow considering all of my vehicles have android headunits and this seems to be the only brand that doesn't have this as an option. I don't have my MCU and ROM info handy but, has there been any discussion about ways to show a backup camera during boot on units that don't have it working out of the box? Unfortunately there are no other sellers who have the "flat face" head unit for my Range Rover, so I'm at the mercy of the unit I have installed.
Thanks.
EDIT: It's an Eonon GA8201A if that makes a difference.

What's wrong with it showing the reverse camera upon reverse? While booting seems odd, especially when the OS is having to load.

Nothing else works while its booting so i wouldnt expect the camera to be any different, what model range rover do you have ?
I just fitted an Eonon GA2175 to my D3/LR3 but yet to route the camera cabling.

Turbine1991 said:
What's wrong with it showing the reverse camera upon reverse? While booting seems odd, especially when the OS is having to load.
Click to expand...
Click to collapse
hangover68 said:
Nothing else works while its booting so i wouldnt expect the camera to be any different, what model range rover do you have ?
I just fitted an Eonon GA2175 to my D3/LR3 but yet to route the camera cabling.
Click to expand...
Click to collapse
I has nothing to do with the OS loading and so on. It is normally activated by the reverse gear. Than it gets an electrical signal and the camera video is simply going over everything else. No OS interference at all.
So it could display on start if you have the gear in reverse.
If you do not have the gear in reverse it will not show. I don't know any unit that does this when not in reverse: OS loaded or not. Because it is not controlled by the OS, but by the electrical signal when in reverse.
This is from a central electrical signal: If it would function it would also mean that upon starting, whith the car not in reverse, also the reverse backlights would be on. That would be confusing and thereby dangerous.

Does your webcam work while the PC booting ? , no because the os still has to load before any peripherals will work which is no different to the head unit regardless if you select reverse or not.

My head unit displays the reversing signal through the OS. The Android firmware automatically switches depending on the reverse line. The only way I could see this working the way you say is by using the output of the head unit to the display + the reverse camera and then using a relay to switch between them. Completely separating the OS from the camera feed.

Its wrong design from eonon if this is the case.
The rear signal in all other px5 or a3 or a8 units is controlled by the mcu so when you switch the key and you put reverse no matter what the addon android card does it switches to rear camera.
I dont believe they had done that and you must wait the android to boot ...

Reverse Camera and Parking Sensors NOT ON as much as needed

Hello everyone,
Been reading for many years this great forum. Now I've decided to make a post, as I could not find any relevant thread about my issue.
I have a VW Tiguan, with factory parking sensors installed and some weeks ago I installed an Android head unit. It is a Chinese brand called Eunavi with Android 9.
The unit is quite good for the money (it is called Eunavi 2 din 9'' Android 8.1 9.0 TDA7851 Car Radio Stereo for AliExpress), but I come up to the following issue:
Before installation of the unit, I had the LCD car stereo that came with the car by VW. When I was putting the reverse gear, the LCD screen would come on and display the parking sensors for front and back. This specific screen would stay ON, until either the parking brake would be turned on (meaning: the car is parked) or the speed of the car would be over say 10km/hour (meaning: the car is unparked and going).
The new android headunit now, does not work like this. When the reverse gear is on, the parking sensor screen is also turned on. But all the other conditions are not considered, so when you are simply trying to park or unpark, you are only able to see the sensors screen only when in reverse gear and not if you are going forth.
My car has this parking system also working with the push of button that is enabled with the reverse gear and goes off the way I mentioned.
Do you know if I would be able to connect the cable for the reverse gear from the unit to that specific button?
Or, even better, Is there any other way to programmatically add the specific conditions to that parking sensors screen of the unit?
Kind regards,
Panagiotis

Hi, Could you please tell me did you ever managed to fix this issue and how? I have a same problem.

Me too, but with aftermarket parking sensors. I can't connect them to android unit display. Reverse camera works fine.

Faulty andriod camera honda civic 2007

Hi please, I need help to fix my andriod HU camera. I followed seller guidance to install and wire the device but it does not automatically switch on when I shift to reverse gear. And I had to install an andriod camera from playstore as I could not find any installed camera. When I manually open the camera in reverse, it work but the image starts from my left side instead of the center. The trajectory line appear from left to right. Can someone help? See pictures.

Fazziee said:
but it does not automatically switch on when I shift to reverse gear
Click to expand...
Click to collapse
You need to connect pin G5 on the head units power connector to your reverse light power supply. This triggers the reverse camera to automatically display.
You should uninstall the Android camera app you have downloaded as it isn't needed.
These head units are vertical/portrait by default but have been modified to rotate everything by 90° to operate in horizontal/landscape mode. That's probably why your 3rd party camera app is sideways.
You should be able to view the reverse camera in 1 of the preinstalled apps. Try the app called "AV" or something similar.

Thank you for your response. I apprciate this. But I think I have connected the wires already as you advised. I had one PINK wire labelled BACK and one BROWN wire extending from the power. I connected these two wires to a RED wire extending from the Camera input. So, when I put gear on Reverse and manually open camera, it works but the image is inverted. I have uninstalled the playstore camera but the reverse gear does not trigger the (invisible) in-built camera.

The only pre-installed APP I have that could use a camera is TV. Also I do not have a canbus hency why I joined all wires together. I have also tried using just one wire, the same result. Is there a way I can rotate the camera orientation? I have been frustrated with setting this up. I have tried updating the MCU but no luck with the camera.

Fazziee said:
Hi please, I need help to fix my andriod HU camera. I followed seller guidance to install and wire the device but it does not automatically switch on when I shift to reverse gear. And I had to install an andriod camera from playstore as I could not find any installed camera. When I manually open the camera in reverse, it work but the image starts from my left side instead of the center. The trajectory line appear from left to right. Can someone help? See pictures.
Click to expand...
Click to collapse
Is unit an FYT type? Post Android system information including MCU version

If you have a multimeter check that the wire you connected to pin 5 has 12v when you engage reverse. If it doesn't then it is wired incorrectly.

Yes it does have 12V. I'm thinking it has something to do with the software. Maybe there is no preinstalled camera that is programmed to appear when in reverse and also to remain vertically orientated. I think youbare right that these HUs are setup to open every single apps in horizontal mode and that includes third party camera. Question: Do headunits come with their own camera app? Mine did not come with a default camera software.

marchnz said:
Is unit an FYT type? Post Android system information including MCU version
Click to expand...
Click to collapse
Device name: ums512_1h10_Natv
Andriod version: 12
MCU version: TS10.2.2_20230210.093416

Fazziee said:
Device name: ums512_1h10_Natv
Andriod version: 12
MCU version: TS10.2.2_20230210.093416
Click to expand...
Click to collapse

Not an FYT unit, requested moderator moves to Android Head-Units forum.

Android Head Unit wont show the backup can Screen (EKIY KK5)

Hi, I just installed an android Head Unit to my Renault Kadjar. But if i put my car in the reverse gear ist wont show the Camera screen. Even if the Kamera isnt connected it must show the camera screen or not? I cant find it in the Settings…