[Firmware] Junsun V1 8667Q - 8G/128G VHD QLED

[robfox1975]

I am out of ideas too, I will make one more message to seller demanding to return if not I will see if I can find a local android expert, if that doesn't work then I guess I just buy a new one

 

[robfox1975]

Its been suggested that I need a memory dump and preloader, does anyone with one of these 8667 units have one or able to make one?

 

[MaxuBo]

Its been suggested that I need a memory dump and preloader, does anyone with one of these 8667 units have one or able to make one?

In addition, we need to find a testpoint, I could not connect to the computer. I think we really have a broken preloader.

 

[robfox1975]

In addition, we need to find a testpoint, I could not connect to the computer. I think we really have a broken preloader.

Yes we do....now the seller will not respond at all, so if I can get hold of a memory dump I will have to find a local tech expert

 

[robfox1975]

Does anyone with a working mtk8667 head unit/device have a memory dump or full backup or could someone possible create one using sp flash tool
There is a full guide here https://www.hovatek.com/forum/thread-526.html for anyone who wants to create one as this could be useful

 

[didko84]

Mtk8667

I have same problem. Stuck on car logo. Junsun send me before a week update. Now will try your way with fingers.

Edit - update start thanks

 

[didko84]

Ok I made it.

Install my FW _ Junsun send it to me in november 22
Link is active till 18.12.2022

DOX.bg - Файл организатор

DOX.bg предоставя безплатно пространство от 5 GB за съхранение, организация и споделяне на файлове с големина до 2G.

dox.abv.bg

 

[wybitny2]

Anyone have newer firmware for Junsun ?. My salesman is not talking, I will be grateful

 

[wybitny2]

Ok I made it.

Install my FW _ Junsun send it to me in november 22
Link is active till 18.12.2022

DOX.bg - Файл организатор

DOX.bg предоставя безплатно пространство от 5 GB за съхранение, организация и споделяне на файлове с големина до 2G.

dox.abv.bg

here is a newer firmware 8667Q军灿UI02-国外-VHD720x1280_v23_20220801 you need to look for

 

[MaxuBo]

here is a newer firmware 8667Q军灿UI02-国外-VHD720x1280_v23_20220801 you need to look for

This is a different firmware. 1280x720 not vhd

 

[wybitny2]

This is a different firmware. 1280x720 not vhd

This firmware is for Junsun Radio. For this radio there is newer software v23.

 

[didko84]

Which one is newer and better ?
What mean this resolution

 

[wybitny2]

Which one is newer and better ?
What mean this resolution

What I write is not necessary to suggest it, what matters is what is inside the software, Vendor.img is there build.prop, it is the same as for Junsun radio. Is v23 any difference between v22, I don't know, but this software is stable, nothing wrong with it. I see that there are different software here, you have to be careful what you download, the radio will get a black screen after bad software, it is salvageable. When everything works, it's better not to change anything

 

[robfox1975]

What I write is not necessary to suggest it, what matters is what is inside the software, Vendor.img is there build.prop, it is the same as for Junsun radio. Is v23 any difference between v22, I don't know, but this software is stable, nothing wrong with it. I see that there are different software here, you have to be careful what you download, the radio will get a black screen after bad software, it is salvageable. When everything works, it's better not to change anything

In theory it is salvagable but not always in practice...I have tried every single firmware out there, I have tried removing the radio fuse before every attempt, I have tried different usb drives in both slots. I have tried the correct procedure at least 200 times in the last week. I am now convinced the usb slots are just not reading and that I need to recover in a way using sp flash tool with a full memory dump(scatter file, bootloader etc) from a 8667 unit, like in this thread https://forum.xda-developers.com/t/rom-firmware-brick-recovery-for-7-android-head-unit-ac8227l-yt9217-yt9218-1-16gb.3931863/ but with an mtk8667 memory dump, but I cannot find one anywhere on the internet and even extracting the 8667.bin files does not give me a scatter file or preloader.

The seller will not help saying not their problem, and that 12 month warranty is a typing error and ebay refuses to help...looks like I will have to buy a new unit

 

[robfox1975]

I have same problem. Stuck on car logo. Junsun send me before a week update. Now will try your way with fingers.

Edit - update start thanks

I'm happy it worked for you

 

[MaxuBo]

...but with an mtk8667 memory dump, but I cannot find one anywhere on the internet and even extracting the 8667.bin files does not give me a scatter file or preloader...

I'm also inclined to think about buying a new device. To restore this

 

[robfox1975]

@MaxuBo

I have been told to try this method here to attemp to connect via ADB I wont get time to try tonight but I wanted to share it in case it helps

 

[h2official]

In theory it is salvagable but not always in practice...I have tried every single firmware out there, I have tried removing the radio fuse before every attempt, I have tried different usb drives in both slots. I have tried the correct procedure at least 200 times in the last week. I am now convinced the usb slots are just not reading and that I need to recover in a way using sp flash tool with a full memory dump(scatter file, bootloader etc) from a 8667 unit, like in this thread https://forum.xda-developers.com/t/rom-firmware-brick-recovery-for-7-android-head-unit-ac8227l-yt9217-yt9218-1-16gb.3931863/ but with an mtk8667 memory dump, but I cannot find one anywhere on the internet and even extracting the 8667.bin files does not give me a scatter file or preloader.

The seller will not help saying not their problem, and that 12 month warranty is a typing error and ebay refuses to help...looks like I will have to buy a new unit

@robfox1975

Hi! I myself tried to dump the firmware (to easily try the updates without reinstalling the customizations) unfortunately without success.
I tried to connect with usb, but I couldn't detect anything under linux or windows. I have tested, I think, all versions of SP Flash and all drivers available on the internet. USB 4 pins, 6pins, debug ON/OFF in developpers and secrets options... No result neither ADB wired nor SP Flash detect.
I also tried to do it by ADB in wifi, I manage to connect, unfortunately impossible to have the root access to save the partitions directly. As long as we don't have root access or the possibility to install a custom recovery (twrp or others), it will be complicated to play with the firmwares easily.
I'm still sure that there must be a wired access, at least for the development tests and the factory installation. Maybe a cable connected to another terminal? Or a key combination to activate the USB debugging...?
I'll probably try to open "the beast" in a few months to see inside if I find a serial port, but for the moment I'd rather avoid opening it (it works ).
If you feel motivated and confident, maybe you can open yours and share some pictures of the inside?

 

[robfox1975]

@robfox1975

Hi! I myself tried to dump the firmware (to easily try the updates without reinstalling the customizations) unfortunately without success.
I tried to connect with usb, but I couldn't detect anything under linux or windows. I have tested, I think, all versions of SP Flash and all drivers available on the internet. USB 4 pins, 6pins, debug ON/OFF in developpers and secrets options... No result neither ADB wired nor SP Flash detect.
I also tried to do it by ADB in wifi, I manage to connect, unfortunately impossible to have the root access to save the partitions directly. As long as we don't have root access or the possibility to install a custom recovery (twrp or others), it will be complicated to play with the firmwares easily.
I'm still sure that there must be a wired access, at least for the development tests and the factory installation. Maybe a cable connected to another terminal? Or a key combination to activate the USB debugging...?
I'll probably try to open "the beast" in a few months to see inside if I find a serial port, but for the moment I'd rather avoid opening it (it works ).
If you feel motivated and confident, maybe you can open yours and share some pictures of the inside?

I think im more ready to drop it off a large cliff.

 

[robfox1975]

@robfox1975

Hi! I myself tried to dump the firmware (to easily try the updates without reinstalling the customizations) unfortunately without success.
I tried to connect with usb, but I couldn't detect anything under linux or windows. I have tested, I think, all versions of SP Flash and all drivers available on the internet. USB 4 pins, 6pins, debug ON/OFF in developpers and secrets options... No result neither ADB wired nor SP Flash detect.
I also tried to do it by ADB in wifi, I manage to connect, unfortunately impossible to have the root access to save the partitions directly. As long as we don't have root access or the possibility to install a custom recovery (twrp or others), it will be complicated to play with the firmwares easily.
I'm still sure that there must be a wired access, at least for the development tests and the factory installation. Maybe a cable connected to another terminal? Or a key combination to activate the USB debugging...?
I'll probably try to open "the beast" in a few months to see inside if I find a serial port, but for the moment I'd rather avoid opening it (it works ).
If you feel motivated and confident, maybe you can open yours and share some pictures of the inside?

this maybe worth a read https://www.hovatek.com/forum/thread-13347.html

or this https://www.hovatek.com/forum/thread-588.html