Database Users

Set resolution to high on my Android 5.1 head unit. Now I can't access settings!

I have two resolution settings on my android 5.1 head unit. I set it to the higher one. And now the screen is to wide to fit in the 6.2 inch monitor. And the Settings icon is off the screen. I can scroll right and see it. But while scrolling I can't select it. To get back into settings and reset the resolution back to the lower setting.
Does anyone know how to access settings someplace else other than the home screen button? It's an Eincar unit. But I think they are pretty much all the same. It's android 5.1.

Android 5.1 head unit
Hi there,
I just bought one of those units and it happen to me exactly the same right after I found the code t unlock the general>extras menu.
I managed to "guess" the position of the buttons since it seems like the screen changes but the original position of the touch buttons does not. It took me a little while but I was able to do it but its complicated thou.
The other way around would be to try the the reset pin button on the front right top corner. I have not try that so honestly don't know the exact behavior of this reset button.
Good look.

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.

Head Unit AC6227L Touch Screen X & Y axis currupt

Hi, I was trying to reconfigure my resistive buttons to switch off the screen when driving at night. I managed to reverse the X&Y axis so I have to press in the opposite point in the screen to interface with the OS. Any advice on how to resolve this as I'm just getting more frustrated trying to navigate the menus to make the changes. Would I be better flashing the MCU firmware or the android firmware?

I had this problem before just go to factory settings and change it back

Thanks for the advice but it's difficult to get into factory settings and then what do I do, reset to default I don't see that option?

There's no default option in factory settings
U should go for touch screen settings and change x&y
If you're being difficult getting the factory settings
U can connect keyboard or mouse
That's what I did when I accidentally changed touch screen resolution...

I too am struggling to set it back to normal touch operation i even found one thing where i could see where each finger registered on the other hemisphere of the screen ... Halp me

Try this and say if it works.
In my Head Unit, thats had fixed the problem.

Marcio Abranches-The Bambi reply. I have a Shinzhen Android head stereo C80, 9.1".
I trolled countless pages looking for the solution of 'X' "Y" about face. I dont know what I did to deserve the terrible screw up. But let me say for all those who have also stumbled while stuffing around in this area that this 5 finger technique works on this model as well.
So positive feedback from me. Thanks mate...terrific.
Now the next problem is, how to make active the radio buttons on the left of screen; Home, Return, Vol+, Vol- etc......

In addition to Marcio's instruction, I have this link that takes you to a Youtube description of fixing the same issue and also goes into how to map the side buttons that also drops off.

android HU touch screen error

hi im facing issue with my android head unit touch screen. the problem is that it is some times jumpy.
i have replace the touch screen panel and i have calibrate the touch screen, it is still jumpy.
every time i press a certain point it ended up pressing some random place. especially with the zooming gesture in the google maps.
example as shown in video attached, i keep pressing the home apps button it ended up presing navi/radio/other apps. and when izoom in on google maps it becomes zoom out instead.
anyone here getting this issue and have the solution to fix this?
please help
my head unit spec is as follow:
android 9
rk3399 + 4gb ram + 64gb rom
kernel linux 4.4.167
os version kc1E0107-p01
mcu STM32

Dasaita PX6 7" - touchscreen partially working

Hello,
i have Dasaita PX6 7" without hardware buttons and some time ago the touchscreen started to do strange things like i'm driving and i hear the media makes *bop* sound as if i've touched the power touch-button and the screen goes off or it launches a program as if i've touched the screen over where it's icon is.
Now it seems it stopped doing all this but a portion of the screen is just not working, not responding to touch.
The pic of the unit is from the web but mine is the same. I did the color rectangular areas tho to show and say - the green area is responding to touch, the red area is not responding
I write for over a week to Dasaita on Aliexpress where i bought the unit for solution or for new screen - they just read, no answer. I also write to their FB page - no answer.
Because the portion of screen which is not active i can't drag and drop icons from other screens to main screen - i have mouse, but i cant select and drag. Any suggestions?
And please tell me if i can fix this touchscreen (maybe it delaminated somewhere and its not making contact) or where i can get new (because of high chance to ruin this when trying to fix it).
Thank you

Have you ever recalibrated the touch screen?
I don´t know how it works on yours, but for a couple of units it works like all 5 fingers touch at the same time and hold it until you get a marker on the upper left screen.
Touch it as exact as possible and do that for all corners as you get the touch point visible.
For the buttons on the left side you should have a setup in the settings menu.

Hi, i watched videos about the 5 fingers touch but it doesnt activate on mine.
I entered the factory menu /with the 126 password/ where are similar functions and tried them several times just to be sure - no change.
The buttons on the left side are part of the touchscreen even tho they are on the black stripe, its jsut painted, it dosn't matter.
BR

In this case you should get in contact with Dasaita and/or the seller.
May be there is an issue with the controller or firmware.