Help to recover head unit 8227 Demo - Android Head-Units

Hello everyone. Buy a unit with Haoling frimware 00009_V0001_20191128. To improve it a bit, install the YT9216B_00002_V004_2101012_HIFI_V3 frimware with SPFlashtool. The new frimware was working fine, but the drive seemed slower, so I decided to look for another lighter frimware without so many extras. My problem comes when when installing the new frimware I forgot to uncheck the Preload box and when I realized I got nervous and disconnected the cable, this caused the display of the unit to remain black and illuminated.
My first failure was not to backup the drive in its original state, and since then I have been testing frimwares without success, the most I have achieved is having a home screen with 3 boot options and an arrow moving in a loop, but at not having physical buttons I can not do anything.
I have had access to a unit equal to mine, to which I have been able to make a dump backup, but I am unable to load it, since the unit sounds as if it is constantly connecting and disconnecting and does not complete the loading of User.
The Test Point system does not seem to work for me, or that or something I am not doing well and I cannot find any video to see how it is done.
Ultimately, I don't know if my unit has a fix or if it will stay like a brick.
I hope you can help me, thanks
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Hello. Has anyone happened to me? Is there no way to fix a failed Preload installation or to know what Frimware can I install to recover my drive?
Thank you

Disconnect the black connector from the radio for at least 30 min..next, it should boot directly to system..if it freezes at the Android logo, you have installed a incorrect firmware

Try this brand new guide

Related

Nexus 4 only working on Jellybean (4.2.2)

This is very strange...
Okay, it's the second Nexus 4 that I own (my other one works well, even has Nougat installed on it)
For some reason, it only works on Jellybean version 4.2.2, I've tried to update it to all of the factory updates and yet it gets stuck on a endless boot loop at the start. Very weird.
I've tried to wipe the cache: it does nothing.
I've also tried to Side-load a custom ROM: it still does not work.
I've tried to update it via 4.2.2: it still does not work
I've made a 3 hours research on the internet and yet I found nothing. It's very weird that it does this, and I'm probably the only one who has this problem.
The reason why I am working on making this phone work, despite having a working one with version 7, is because I wanted to gift it to my sister. Yet, I find Jellybean a bit too old for this phone, and would also be cool to have all the features that is include in either Lollipop or Marshmallow.
It would be awesome if someone who found a solution to this problem, to share it with us.
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:
Thanks!
Have you tried flashing factory images? I think that must work
Nitin
Fix
I just just fixed it!
I've realized that the screws where missing on the bottom, so I've opened the phone. I took the plastic shield off and realized that the Earphone Jack was not plugged. After plugging it back, I tried the update thinking it might be the solution and it is!
So basically what android does, it initializes the hardware while booting. It discovered that there is a component missing, so it got stuck on the initialization.
Thank you for trying to help c:
I still appreciate it!

Followed Stock ROM guide, made some progress, now stuck at Android Recovery

Hello,
I followed the guide at http://https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138.
I went from having TWRP installed and just having blinking white LED to now booting into Android recovery screen (shown here)
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Now that I'm at the Android Recovery screen, someone mentioned I should just be able to hit wipe data/factory reset option and it should boot me into the OS. However, what actually happens is the unit reboots, shows the motorola sign, buzzes, goes black, shows the motorola sign again, goes black, then boots back into Android recovery screen shown.
I'm not sure how to continue troubleshooting.
The one thing that stuck out to me is it said "Flash signed images after reboot if needed"
Is that what I'm missing? If so, what does that entail?
Any help is much appreciated. Concerned I may have fully bricked the phone.
Thanks from your frustrated friend,
Connor J.
P.s. Model # is XT1625-SS
I realized I forgot to add the model number which is XT1625-SS.
I've bought another moto g4 in the meantime that I'm using.
I originally went wrong by installing the SuperSU in a link from a youtube video that was a link to an older version of SuperSU.
So I know I messed up there.
But I'd like to know if there's a way to remedy it because other than my failed tinkering the hardware on the phone is perfectly ok.

Android screen Chinese upgrading and some problems

hello friends,
this is my device:
https://www.aliexpress.com/item/32995675107.html?spm=a2g0s.9042311.0.0.27424c4d9quP9H
CPU: MTK8227 / Cortex-A7
7260L-2G+32G
Android Version: 8.1GO
I need some help:
1. update the Firmware, Mcu, Android Version, everything that in the software that I can upgrade it.
2.When I try to enter to factory settings and configure something (like protocol,IU etc) the unit enter into a loop, starting to shutdown and start infinitely, until I enter quickly as I can to reset all data on the android and it's stops.. but the problem is that I can't change anything on factory settings because of the loop..
3. the Radio works pretty lame.. when I stand the radio works with a little noise, but when I start driving it's almost not working.. can someone tell me why?
4. if the screen don't came with split screen there is some upgrade that add it?
thank you very much !!
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Hello friend , I have similar guy trying to get software for this device please read solutions on this thread :
https://forum.xda-developers.com/android-auto/android-head-units/alps-ff5000-head-car-unit-help-firmware-t4167669
See if helps and let me know...
Anton TNT said:
Hello friend , I have similar guy trying to get software for this device please read solutions on this thread :
https://forum.xda-developers.com/android-auto/android-head-units/alps-ff5000-head-car-unit-help-firmware-t4167669
See if helps and let me know...
Click to expand...
Click to collapse
thank you my friend. I'll look at it
Please can someone help, I have the same unit YT7260L
What is the difference between the 7260B and 7260L?
Please

No-name BMW E60 chinese HA bricked (files/images included)

Hello, I have a HU. I installed a Launcher, set it as default, and now it can't go to the Android menu, the Bluetooth is working fine, just a BMW logo looping. I tried to fix it, accidentally bricked it as well (deleted everything with SPF), because it's now not recognized by my laptop. I got my original firmware from the manufacturer I think (link K2001N.img), but they didn't really tell me how to use it. So currently the reverse cam is working, the original BMW menu is working, the Android part is a huge black screen (with back light). I also tried to find test points, with not much luck. Can someone help me to find the test points, and tell me how to use this .img file? Only one RST button is present. I already tried a few test prints with no luck, maybe I can memory dump this image file?
HU details (so others find it in the future)
Kernel: [email protected]
Build number: full_8227L_demo-userdebug 10 O00019 1610719904 userdebug
Build version: alps-mp-o1.mp5
MCU: HTT_B0_Y8_00_200728B
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please help stuck in android logo does anyone know how to do a hard reset, i tried with update but it doesn't start .. if anyone knows how to restart again please ... thanks . it's china bmw e60 rockcip 3399

Flashing a custom ROM on a ZED AN817DK?

Hey fellas,
I've done some flashing on android before, but only on smartphones, instead of a car multimedia. My model is ZED AN817DK.
It looks like this:
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The launcher it came with is kinda disgusting, so I installed Nova Launcher instead.
Regardless, the system barely works, even on the stock settings / factory reset status.
Apps are crashing, changing the audio option in Waze takes a whole 2 minutes to even open up the menu for the option
(the app works but the input is unresponsive for 2 minutes until the menu appears).
I've tried contacting the shop I bought it in and they sent me a "firmware" update in the form of an APK file that will not launch in the device. I don't think I saw an option in it's administrator settings or anywhere else to update firmware via file (only check for firmware update - and it's always "up to date").
So I think I'll resort to flash a custom rom on this. I'm a bit worried since in the scenario where things go wrong I rely only on a pen hole style reset button which I don't fully trust to reset successfully if a custom rom is installed.
Is there a general flashing guide for these devices? How safe is it, as in what are the chances of completely bricking the device?
Are there general or common roms that work well on these devices?

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