I have a 12.3" Android head unit. It does not have any physical buttons except a recessed reset button on side. I was playing with developer options and made a stupid error that changed the resolution/rotation of the screen. I am looking to revert back, but screen is black. I can tell the screen is now horizontal as the pop up parking sensor is now on bottom of screen and I was able to press the lower right side of screen to tilt unit up and down. I can start media via the steering wheel buttons and advance music by pressing left of upper middle part of screen. No other screen functions work or come up.
I've updated the firmware from USB, but it did not change the resolution.
Is there a way to boot directly to the developer options from a USB device?
Alternatively, is there a way to reset to factory settings? I've hit the reset button with no luck. Tried to long hold reset as well.
Other option is to reinstall OS from USB, but have no idea how or if possible.
Appreciate any guidance.
Nobody knows what you own out of the hundreds of different devices, architectures and factories that make them.
marchnz said:
Nobody knows what you own out of the hundreds of different devices, architectures and factories that make them.
Click to expand...
Click to collapse
Yes, you are right... not even a short information given.
Heymarkp said:
I have a 12.3" Android head unit. It does not have any physical buttons except a recessed reset button on side. I was playing with developer options and made a stupid error that changed the resolution/rotation of the screen. I am looking to revert back, but screen is black. I can tell the screen is now horizontal as the pop up parking sensor is now on bottom of screen and I was able to press the lower right side of screen to tilt unit up and down. I can start media via the steering wheel buttons and advance music by pressing left of upper middle part of screen. No other screen functions work or come up.
I've updated the firmware from USB, but it did not change the resolution.
Is there a way to boot directly to the developer options from a USB device?
Alternatively, is there a way to reset to factory settings? I've hit the reset button with no luck. Tried to long hold reset as well.
Other option is to reinstall OS from USB, but have no idea how or if possible.
Appreciate any guidance.
Click to expand...
Click to collapse
You really should post the information about your unit:
Currently used MCU
Original firmware version
Current used firmware
Seller of the unit
...but one thing seems to be clear:
You flashed not the right firmware for your special unit.
Get back to the seller and ask him for the correct firmware, flash it and that should fix the issue.
These big screens have their own firmware and you should not flash any firmware if it does not come from your seller.
Apologies. This unit it from China and is a tilt screen designed for Range Rover Sport L494 Series. Has Android OS 10. I don’t know where to find the model #.
I received the firmware file from the seller. , but it appears it did not reinstall the developer tools/ options. They just sent me a different bin file to try.
New bin file reset to factory. Problem resolved. Thanks for replying.
Related
Hi all,
After hooking my phone up to a car stereo, the home and recent key stopped working.
Let me explain:
I just bought a Pioneer avh-x5800dab, with a built in feature that makes it possible to mirror your android device to your head unit. When i unplugged my phone from the head unit, the recent and home button stopped working.
The recent button lights up when i press it, and i can wake and unlock my phone with the home key. Also, both keys works in TWRP. So to me it seems android has unmapped the keys.
Back key works as normal.
I am running KryxOS R1.3
What i have tried so far:
Wipe cache and dalvik.
Uninstalled all apps related to the pioneer head unit.
Dirty flashed the rom.
I would prefer not to clean flash the rom again. Any help and suggestions would be hugely appreciated!
Similar issue
Not sure what causes it but im alao having a similar issue. Home buttong sometimes works on and off but my recent windows key does not register. It recognizes when i tap it but does not work. Also notifications no longer show up at the top.
Having the same issue
Having the same issue with the home and recent buttons, but mine isn't related to the Pioneer software. Notice that I suddenly can't uninstall apps from within the app manager, so I'm wondering if it's related to a security setting. Can't find anything that looks out of place though.
kimern said:
Hi all,
After hooking my phone up to a car stereo, the home and recent key stopped working.
Let me explain:
I just bought a Pioneer avh-x5800dab, with a built in feature that makes it possible to mirror your android device to your head unit. When i unplugged my phone from the head unit, the recent and home button stopped working.
The recent button lights up when i press it, and i can wake and unlock my phone with the home key. Also, both keys works in TWRP. So to me it seems android has unmapped the keys.
Back key works as normal.
I am running KryxOS R1.3
What i have tried so far:
Wipe cache and dalvik.
Uninstalled all apps related to the pioneer head unit.
Dirty flashed the rom.
I would prefer not to clean flash the rom again. Any help and suggestions would be hugely appreciated!
Click to expand...
Click to collapse
Possible Fix
As I was reviewing some of my settings I got a random notification that I couldn't review a setting because my password had expired. I went into Settings -> Lock Screen and Security and set a new PIN for myself. Home and recent buttons work again and I can delete apps. Weird. Hope it continues to work.
cstevenson72 said:
Having the same issue with the home and recent buttons, but mine isn't related to the Pioneer software. Notice that I suddenly can't uninstall apps from within the app manager, so I'm wondering if it's related to a security setting. Can't find anything that looks out of place though.
Click to expand...
Click to collapse
Hi All
I have been reading these forums and generally googling day and night trying to work out what went wrong but haven't been able to solve it so far.
So by means of context I bought an android HU (Brand: Andream EW822P8QH) from aliexpress and was working flawlessly until about two weeks ago.
Details can be found aliexpress dot com /item/Octa-Core-2G-RAM-32G-ROM-Car-DVD-Player-Stereo-Android-7-1-Navigation-BT-For/32834839813.html?spm=a2g0s.9042311.0.0.3da24c4dDGESm4
It's running 7.1.2 and was running the CarWebGuru launcher, when apparently it asked for an update.
Since then, none of the physical buttons work. I've lost all steering wheel controls, so am now just reliant on the touch screen itself, so cannot control volume, etc.
Reading all forums, I understood that under Settings - Car Settings - Steering Control settings should allow you to reconfigure all the buttons once again. Unfortunately when I try to load it, the screen goes white, then goes back to the start of the Setting menu. (Interesting, I had a short cut to Steering Controls on my desktop, but again when I launch it, screen goes black then, back to the desktop
I thought there was something in Settings - Car Settings - Extra Settings, by pressing the code 123456, but once again the screen goes white and seems to go back to the start.
It just seems as though, both these settings areas are corrupted/ gone now.
Can anybody provide me with any clues on what I can get this working again?
Happy to do a factory reset, but nothing seems to happen through the Setting menu.
Was thinking is it even possible to install a new ROM etc. I would say while I've done this on my phone, never on a head unit so welcome any advice on which ROM and some guidance on steps.
Oh I can access the Settings - Dev Options by entering the code 7890 so do let me know if you want me to look at anything there. Interesting one last symptom, my navigation menu bar (by swiping down from top of the screen) no longer works., so definitely seems like something buggy is going on.
Thanks in advance to all who reply.
Hello everyone,
I have recently bought a XTRONS headunit (from the box, the full name is ICE/HU/PR98MTVL) - I can't post a link from the XTRONS website, but the model is PR98MTVL.
The car that was installed on is a 2014 Volkswagen Jetta.
I have 2 issues with it that I couldn't figure out lurking on the web:
1. The buttons on the bottom bezel are mixed up: the POWER button is acting like a home button, the HOME and the VOL- is acting like a mute/unmute button, the RETURN button dims the screen and the VOL+ is changing the radio station.
I saw some posts about remapping the buttons, but to no success - I've entered the "Touch area keys" setting, but couldn't change a thing. The only button position that works is LEFT (the others just make the touchscreen work in mirror mode - when pressing a button on the left, the one on the right gets activated).
All buttons are "RESERVED" and when trying to press one of the bezel button, it simply does as stating above.
2. Splitscreen isn't working and there isn't an option for activating/changing it.
After reading several posts, I came to the conclusion that I need to use a custom ROM - but couldn't find anything that matches my current tablet.
Could you help me with those issues? I don't necessarily want to change the ROM, but anything that works.
This is the information shown in the "About" section:
Android version: 8.1.0
MCU version: T8.3.19-36-13-E53201-180827
System version: V9.3.1_20181012.103419_MLT5
Please let me know if there is anything more that I can do.
Thank you for your time!
Bump. Maybe I have some luck
viperadx said:
Hello everyone,
I have recently bought a XTRONS headunit (from the box, the full name is ICE/HU/PR98MTVL) - I can't post a link from the XTRONS website, but the model is PR98MTVL.
The car that was installed on is a 2014 Volkswagen Jetta.
I have 2 issues with it that I couldn't figure out lurking on the web:
1. The buttons on the bottom bezel are mixed up: the POWER button is acting like a home button, the HOME and the VOL- is acting like a mute/unmute button, the RETURN button dims the screen and the VOL+ is changing the radio station.
I saw some posts about remapping the buttons, but to no success - I've entered the "Touch area keys" setting, but couldn't change a thing. The only button position that works is LEFT (the others just make the touchscreen work in mirror mode - when pressing a button on the left, the one on the right gets activated).
All buttons are "RESERVED" and when trying to press one of the bezel button, it simply does as stating above.
2. Splitscreen isn't working and there isn't an option for activating/changing it.
After reading several posts, I came to the conclusion that I need to use a custom ROM - but couldn't find anything that matches my current tablet.
Could you help me with those issues? I don't necessarily want to change the ROM, but anything that works.
This is the information shown in the "About" section:
Android version: 8.1.0
MCU version: T8.3.19-36-13-E53201-180827
System version: V9.3.1_20181012.103419_MLT5
Please let me know if there is anything more that I can do.
Thank you for your time!
Click to expand...
Click to collapse
viperadx said:
Bump. Maybe I have some luck
Click to expand...
Click to collapse
Hello, i have the same Headunit (ICE/HU/PR98MTV with Android 8.1) an some issues with the system. Is there a Rom outside or can help us with this headunit?
regards Béla
Hello
Guess I'm in the same boat.
I own an Xtrons PB78MWTP and its MCU is T8.3.19 and system MLT5.
And I searched almost all internet for root, custom roms.
Can't find nothing about these device's
I don't even know if it is MTCD/E or MTCB.
And maybe is similar to PX3 or PX5 devices??
Hello,
The other night I was messing with my HU sold\made by XY Auto and the model is the 8227L_Demo. I must have cleared something in the factory settings because now my on screen climate controls are not showing. I would try to perform a recovery on the unit but it seems there is not any way to get into the recovery. My physical climate controls on the chassis still work. Picture attached of the entire unit I purchased back in 2018. All in all I think I messed something up with the CAN BUS in the software? All the wiring is still connected properly and no damage.
Anyone have any experience with this and maybe know how I can fix it? Anyone know how to get the unit into recovery mode? For recovery mode I've already tried disconnecting the power from the HU, holding in the Reset button while plugging the power back into the HU (I did have the ACC turned on while doing this) still no recovery mode. I also checked for a chip? C7 or something like that on the MB but I could not find it do to a short out as some others have stated it works on their HU's/
When I go into the Car Settings Menu, I logged into Factory Settings and I Properly set the CAN Set to Honda. I then went back out of the Factory Settings and then went into Car Settings where it says to "set in car". I pressed that button and then I get a message of "No Original vehicle settings function"
Any help, guidance, etc. is greatly appreciated and thanks in advance.
(I emailed XY Auto 2 days ago and no response from them yet)
From reading the posts, what has been considered and tried.
What do you want out of xda
Are you sure you have selected the correct CanBus type (e.g Bagu, AnyYuan, etc)? I doubt you will get a response from XY Auto as these 8227L units are for the most part unbranded generic head units. Have you tried contacting who you bought the head unit from (the reseller)?
Hi,
I have done a factory reset to my radio and now the left buttons stop working... Only the screen buttons ate working... Any ideas to solve this problem?
Thanks
Hi, ask your seller to give you files (for factory settings) needed to import physical buttons into device again.
Minute of work and then restart.
Oh... Really... It need some files? Hope the seller send it to me.
I completely noob on this time on rádios... Android
I have those files but model of your device must be close to mine - 8227L ALPS FF5000
I'll reply as soon as possible.
This files how do we use it? Thanks.
nnexuss said:
I'll reply as soon as possible.
This files how do we use it? Thanks.
Click to expand...
Click to collapse
Please take picture of your device externaly with all buttons visible.
Then I will see if it is a match for this device.
Photos added.
Any suggestions?
Thanks
Anton TNT said:
Please take picture of your device externaly with all buttons visible.
Then I will see if it is a match for this device.
Click to expand...
Click to collapse
Hi Anton
Can you hel me please?
nnexuss said:
Hi Anton
Can you hel me please?
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Click to collapse
By the photos you posted this device is similar that I'm using in my car, TS10 or TS18 topway branded, it must have option to update system and MCU online, so do an update online (car settings/factory settings/update).
If updating does not help try calibration of screen (activated by pressing all five fingers on screen I think). There is no physical buttons on this device and it must have canbus box right ?
Anton TNT said:
By the photos you posted this device is similar that I'm using in my car, TS10 or TS18 topway branded, it must have option to update system and MCU online, so do an update online (car settings/factory settings/update).
If updating does not help try calibration of screen (activated by pressing all five fingers on screen I think). There is no physical buttons on this device and it must have canbus box right ?
Click to expand...
Click to collapse
Everything it's working now... Except the remap of the steering wheel... I can't config which function will do each button
This is the main objective 4 me.
When I go to the config menu, press start the config and when press the button on steering wheel nothing happened.
Only volume works and the doors too... If I open a door a imagem pop up on the screen
nnexuss said:
Everything it's working now... Except the remap of the steering wheel... I can't config which function will do each button
This is the main objective 4 me.
When I go to the config menu, press start the config and when press the button on steering wheel nothing happened.
Only volume works and the doors too... If I open a door a imagem pop up on the screen
Click to expand...
Click to collapse
Wrong settings in canbus software - go to factory settings and download/load correct software for canbus device (your car model) and restart, it should work
Anton TNT said:
Wrong settings in canbus software - go to factory settings and download/load correct software for canbus device (your car model) and restart, it should work
Click to expand...
Click to collapse
Now ... other problem :/ some how the app as gone.
cant see the video
Anton TNT said:
cant see the video
Click to expand...
Click to collapse
Try it now please
which canbus settings was prior of changing ? SIMPLE or RAISE or HIWORLD ?
I think this wrong settings caused this. Rerturn old state but do not change first option , If canbus sticker on the box is simple then it is simple in first option - get it ? If it is something else choose this one and then choose software for device and model.
Anton TNT said:
I have those files but model of your device must be close to mine - 8227L ALPS FF5000
Click to expand...
Click to collapse
I have same problem but my unit is V1c 1G - after activating can bus it made APK installation and then the side buttons doesn't work. Here is a photo of unit which is for a Ford Focus MK2.5
Any help much appreciated
Chris
Choose right software for your device and canbus (read which canbus is from sticker on canbus box and then choose from list like if it is RAISE canbus in first section choose RAISE, then in second choose car model and then on next PUBLIC)
Anton TNT said:
Choose right software for your device and canbus (read which canbus is from sticker on canbus box and then choose from list like if it is RAISE canbus in first section choose RAISE, then in second choose car model and then on next PUBLIC)
Click to expand...
Click to collapse
This is my can bus box - doesn´t tell anything about type of can bus. But is it related to can bus? My steering wheel buttons work but not the buttons on the head. I would imagine that it is something else.
Regards Chris
Here is a photo of the set up. Steering wheel buttons work, center console info works. Side buttons on head unit doesn't work.
cl3884 said:
Here is a photo of the set up. Steering wheel buttons work, center console info works. Side buttons on head unit doesn't work.
Click to expand...
Click to collapse
Ths is ok, but must ask your seller for update of files for physical buttons, they only have it. You will not find this on net.