Database Users

Security Error on LG G2 d802 No Download, No Fastboot, No Recovery and Not Recognized

Hi Friends, my LG G2 is in the screen LG logo and after this the message security error and power down.
Before this my phone its recognized by the pc (only fastboot mode) and with the Verry Partitions error, i recovered this with SRKTool so.. now this into the Security Error and my PC not recognize the device (i tried on 3 pcs and 9 diferent ports)
I need help please!!! I dont have money for another phone, and this is my life, please, any help is received. Iam from Venezuela, and sorry for th bad english.

MoixyS2 said:
Hi Friends, my LG G2 is in the screen LG logo and after this the message security error and power down.
Before this my phone its recognized by the pc (only fastboot mode) and with the Verry Partitions error, i recovered this with SRKTool so.. now this into the Security Error and my PC not recognize the device (i tried on 3 pcs and 9 diferent ports)
I need help please!!! I dont have money for another phone, and this is my life, please, any help is received. Iam from Venezuela, and sorry for th bad english.
Click to expand...
Click to collapse
Here's a guide: https://forum.xda-developers.com/lg-g2/help/noob-friendly-recovery-download-mode-t3112805

Jan Philipp said:
Here's a guide: https://forum.xda-developers.com/lg-g2/help/noob-friendly-recovery-download-mode-t3112805
Click to expand...
Click to collapse
this works only on linux... sure? My windows pcs not recognize my device...
.

MoixyS2 said:
this works only on linux... sure? My windows pcs not recognize my device...
.
Click to expand...
Click to collapse
Right. You need a running Linux. So you can download a Linux-Live-CD and run it from CD/DVD-drive without installation or you can set up a Linux with VirtualBox which is done in a couple of minutes.
Sadly I have no knowledge about windows solutions. Sorry.

hola ! según lo que me pasó hace muy poco, yo hice prácticamente lo mismo que vos (osea arreglarlo con un archivo bat, o no ?)... lo que funcionó en mí caso fue bajar un archivo TOT y el correspondiente dll y flashear vía Flash tools 1.6, es decir, no el "normal" que le pones el kdz y listo porque ese no me lo tomaba de ninguna forma... espero que te sirva ! tengo tutoriales pero creo que son todos enlaces externos a otros foros y no sé si se considerará spam o no... buena suerte
Hello ! According to what happened to me very recently, I did pretty much the same as you (I fix it with a bat file, or not?) ... what worked for me was to download a TOT file and the corresponding dll and flash via Flash Tools 1.6, that is, not the "normal" you put the kdz and ready because that did not take me in any way ... I hope it serves you! I have tutorials but I think they are all external links to other forums and I do not know if it will be considered spam or not ... good luck

superking123 said:
hola ! según lo que me pasó hace muy poco, yo hice prácticamente lo mismo que vos (osea arreglarlo con un archivo bat, o no ?)... lo que funcionó en mí caso fue bajar un archivo TOT y el correspondiente dll y flashear vía Flash tools 1.6, es decir, no el "normal" que le pones el kdz y listo porque ese no me lo tomaba de ninguna forma... espero que te sirva ! tengo tutoriales pero creo que son todos enlaces externos a otros foros y no sé si se considerará spam o no... buena suerte
Hello ! According to what happened to me very recently, I did pretty much the same as you (I fix it with a bat file, or not?) ... what worked for me was to download a TOT file and the corresponding dll and flash via Flash Tools 1.6, that is, not the "normal" you put the kdz and ready because that did not take me in any way ... I hope it serves you! I have tutorials but I think they are all external links to other forums and I do not know if it will be considered spam or not ... good luck
Click to expand...
Click to collapse
With Security Error??? And not recognized on my Windows PC
con el logo de Security Error?? Y no es reconocido en mi computadora con Windows

Jan Philipp said:
Right. You need a running Linux. So you can download a Linux-Live-CD and run it from CD/DVD-drive without installation or you can set up a Linux with VirtualBox which is done in a couple of minutes.
Sadly I have no knowledge about windows solutions. Sorry.
Click to expand...
Click to collapse
not working
the sdb partitions not visible on the linux terminal

MoixyS2 said:
With Security Error??? And not recognized on my Windows PC
con el logo de Security Error?? Y no es reconocido en mi computadora con Windows
Click to expand...
Click to collapse
Si, despues de arreglar el error de múltiples particiones pude volver a entrar al modo download (mantener volumen arriba y poner el usb, aunque creo que ya lo sabes)... Sino pareciera que la única forma que te queda es volver a forzar ese modo de corrupción haciendo puente, pero es un lio, e igualmente necesitarías lo de Linux creo :/
If, after fixing the error of multiple partitions I was able to re-enter the download mode (keep volume up and put the usb, although I think you already know) ... But it seems that the only way you have is to re-enforce that Corruption mode making bridge, but it's a mess, and you'd also need the Linux thing I think: /

superking123 said:
Si, despues de arreglar el error de múltiples particiones pude volver a entrar al modo download (mantener volumen arriba y poner el usb, aunque creo que ya lo sabes)... Sino pareciera que la única forma que te queda es volver a forzar ese modo de corrupción haciendo puente, pero es un lio, e igualmente necesitar
Click to expand...
Click to collapse

Help me, moto g4 hardbrick

así de simple, instalé magisk 12.0 usando el TWRP, toda la instalación me dio normal pero ahora el telefono no enciende! Cuando lo conecto mediante usb a la pc el LED funciona, parpadea en blanco como si se estuviera cargando pero no tengo respuesta por parte de la pantalla! Y añadiendo otra cosa, mi pc no reconoce mi teléfono.
Ayuda por favor! No sé hablar ingles pero lo traduzco usando el traductor.
--------------------------------------------------------------------------------
That simple, I installed magisk 12.0 using the TWRP, the whole installation gave me normal but now the phone does not turn on! When I connect it through the computer, the LED works, it blinks white as if it had been loaded but I have no answer from the screen.
my pc does not recognize my phone
Please help! I do not know how to speak English but I translate it using the translator.

Themasio said:
That simple, I installed magisk 12.0 using the TWRP, the whole installation gave me normal but now the phone does not turn on! When I connect it through the computer, the LED works, it blinks white as if it had been loaded but I have no answer from the screen.
my pc does not recognize my phone
Please help! I do not know how to speak English but I translate it using the translator.
Click to expand...
Click to collapse
Press and hold power key for atleast 2 minutes.
That version of magisk is old, updates are for reason, also get a latest version when it starts.

ZTE Blade A6 Unlock Bootloader

Hello, go here and you can unlock bootloader and install root, twrp and much more ...
Keep in mind that the following actions erase your data, make backup, please your data (if they are very important to you)
1 Download my archive new flash.rar . Unpack archive any folder at you're PC.
Go to settings > About phone > click 7 times on build number, next step go to developer option and enable OEM Unlocking and USB debugging.
2 Now we need reboot to EDL. Use [0] Reboot to EDL.bat. After that rename com port - [1] Flash aboot.bat, (you can see your COM port in device manager).
emmcdl.exe -p COM(your com port) -f prog_emmc_firehose_8940.mbn -b aboot aboot1.bin
Click to expand...
Click to collapse
Rename and save. And flash, just press on reedited bat file - [1] Flash aboot.bat
3 Turn on your smartphone as recovery (Vol.Up and Power). Now you see Chinese FTM. So you have done everything right, and the most difficult behind.
Click on next bat file [2] oem unlock.bat . The phone will go to the fastbut mode and he unlock bootloader. You will have to see a ring (See? Alright)
Once you have to re-enter the phone into recovery mode (Vol.Up+Power). You're back in Chinese FTM mode, and you go use [3] Final flash.bat.
4 After the last step ([3] Final flash.bat) you see TWRP. Go to Wipe , and format data and tape YES and press OK. Reboot to recovery.
Now TWRP understands encryption phone. And now you can install root (Use only magisk 16-16.7)
Use method 2 much better for you.
https://4pda.ru/forum/index.php?s=&showtopic=846041&view=findpost&p=84474248
https://tinyurl.com/y4rcchs5 <<< alternative link

Its twrp for A0622 same with A6? And can i flash supersu.zip via twrp only? Because im not pro or understand bout magisk things

0622 is a6 lite?

No it's voyage 5 but using firmware and kernel A6 because it's A0622 model and it's same like A6 lite, and i think i buy unlock phone because its distribute waranty and check in unlock checker it's said Unlock, but how i installing twrp on my phone or installing super su, becauss everytime i unlocked using adb your method always SAHARA FAIL
---------- Post added at 09:20 AM ---------- Previous post was at 09:18 AM ----------
FYI, i just found rooting method for ZTE VOYAGE 5 A0622 in chinese site but it's buy using coins and after click buy or paid my id is banned, don't know why... Lol but i hope my device is getting root so soon because i don't like android phone if it's not rooted

Sort through the firehose (programmers), there is a collection > https://github.com/deadman96385/zte_programmers
And check command:
emmcdl.exe -p COM20 -f prog_emmc_firehose_8940.mbn -gpt
Click to expand...
Click to collapse
COM20 - your EDL (9008) port
prog_emmc_firehose_8940.mbn - name programmer
P.S. If it works, you should see a partition list.
p.s.s axon 9 pro have same problem.

Thanks and a request
Hello, I want to thank you for your work, I did what you say in your post and everything went perfect, now I have TWRP in my A6.
I want to ask you if you have any custom ROM to install on the A6, I tried to use a different ROM from the factory ROM and it didn't work and now I can't reinstall the original Rom because it asks me for the original recovery and I can't find it anywhere, can you help me please?
Thank you.

lyoks said:
Hello, go here and you can unlock bootloader and install root, twrp and much more ...
Keep in mind that the following actions erase your data, make backup, please your data (if they are very important to you)
1 Download my archive new flash.rar . Unpack archive any folder at you're PC.
Go to settings > About phone > click 7 times on build number, next step go to developer option and enable OEM Unlocking and USB debugging.
2 Now we need reboot to EDL. Use [0] Reboot to EDL.bat. After that rename com port - [1] Flash aboot.bat, (you can see your COM port in device manager).
Rename and save. And flash, just press on reedited bat file - [1] Flash aboot.bat
3 Turn on your smartphone as recovery (Vol.Up and Power). Now you see Chinese FTM. So you have done everything right, and the most difficult behind.
Click on next bat file [2] oem unlock.bat . The phone will go to the fastbut mode and he unlock bootloader. You will have to see a ring (See? Alright)
Once you have to re-enter the phone into recovery mode (Vol.Up+Power). You're back in Chinese FTM mode, and you go use [3] Final flash.bat.
4 After the last step ([3] Final flash.bat) you see TWRP. Go to Wipe , and format data and tape YES and press OK. Reboot to recovery.
Now TWRP understands encryption phone. And now you can install root (Use only magisk 16-16.7)
Use method 2 much better for you.
https://4pda.ru/forum/index.php?s=&showtopic=846041&view=findpost&p=84474248
https://tinyurl.com/y4rcchs5 <<< alternative link
Click to expand...
Click to collapse
good tutorial friend I already have the twrp on the mobile but I don't know how to root it, you will have the apk you name because I can't find it thanks

You need intall magisk v16.0

lyoks said:
You need intall magisk v16.0
Click to expand...
Click to collapse
im done bro twpr and root i love bro

el_nabo said:
Hello, I want to thank you for your work, I did what you say in your post and everything went perfect, now I have TWRP in my A6.
I want to ask you if you have any custom ROM to install on the A6, I tried to use a different ROM from the factory ROM and it didn't work and now I can't reinstall the original Rom because it asks me for the original recovery and I can't find it anywhere, can you help me please?
Thank you.
Click to expand...
Click to collapse
Custom ROMS does not exist for model A6. Unfortunately no one wants to make fully working ROMS. But you can port it yourself, using your knowledge if you have it.

lyoks said:
Custom ROMS does not exist for model A6. Unfortunately no one wants to make fully working ROMS. But you can port it yourself, using your knowledge if you have it.
Click to expand...
Click to collapse
im noob :c and rom stock are good is fast no lag

andresh-5 said:
im noob :c and rom stock are good is fast no lag
Click to expand...
Click to collapse
Well, you can learn by yourself, it is not difficult. In addition, you can create your own stock firmware. Delete gapps, priv-app and more...

lyoks said:
well, you can learn by yourself, it is not difficult. In addition, you can create your own stock firmware. Delete gapps, priv-app and more...
Click to expand...
Click to collapse
yes bro all delete the trash app :d

Backup
lyoks said:
Custom ROMS does not exist for model A6. Unfortunately no one wants to make fully working ROMS. But you can port it yourself, using your knowledge if you have it.
Click to expand...
Click to collapse
Dear Lyoks
Unfortunately for me my knowledge is not enough for that, that's why I ask for your help, there are two things that I can think of, get the original ZTE recovery for the A6 or get the original ROM but in zip format and flash it with the TWRP , this would have to be using some backup that was created using the TWRP, will I explain?
Do you have any backup you could send me? I would greatly appreciate it.
Thank you.
el_nabo

el_nabo said:
Dear Lyoks
Unfortunately for me my knowledge is not enough for that, that's why I ask for your help, there are two things that I can think of, get the original ZTE recovery for the A6 or get the original ROM but in zip format and flash it with the TWRP , this would have to be using some backup that was created using the TWRP, will I explain?
Do you have any backup you could send me? I would greatly appreciate it.
Thank you.
el_nabo
Click to expand...
Click to collapse
amigo antes de intenter cambiar la rom tenias q hacer tu bakcup yo lo tengo que version es tu movil el mio es el de claro... y es de 1 solo sim

andresh-5 said:
amigo antes de intenter cambiar la rom tenias q hacer tu bakcup yo lo tengo que version es tu movil el mio es el de claro... y es de 1 solo sim
Click to expand...
Click to collapse
Hello, I appreciate your interest, I will write in Spanish and English to not to break the forum's rules.
I have to clarify that I did try to backup the ROM twice but errors appeared and didn't continue with the process, that's why I don't have the original ROM.
I am very interested in your backup, if you could share a link to download it it would be very good, my phone is also a single SIM and at this point I risk trying anything to recover the equipment.
Thank you again for your help.
Hola, aprecio tu interés, voy a escribir en español e ingles para no romper las reglas del foro.
Tengo que aclarar que sí intenté hacer el respaldo de la ROM dos veces pero aparecían errores y no continuaba con el proceso, es por eso que no tengo la ROM original.
Me interesa mucho tu respaldo, si pudieras compartir algún enlace para poder descargarlo sería muy bueno, mi teléfono también es de un solo SIM y a estas alturas me arriesgo a probar lo que sea para recuperar el equipo.
Gracias de nuevo por tú interés.

el_nabo said:
Hello, I appreciate your interest, I will write in Spanish and English to not to break the forum's rules.
I have to clarify that I did try to backup the ROM twice but errors appeared and didn't continue with the process, that's why I don't have the original ROM.
I am very interested in your backup, if you could share a link to download it it would be very good, my phone is also a single SIM and at this point I risk trying anything to recover the equipment.
Thank you again for your help.
Hola, aprecio tu interés, voy a escribir en español e ingles para no romper las reglas del foro.
Tengo que aclarar que sí intenté hacer el respaldo de la ROM dos veces pero aparecían errores y no continuaba con el proceso, es por eso que no tengo la ROM original.
Me interesa mucho tu respaldo, si pudieras compartir algún enlace para poder descargarlo sería muy bueno, mi teléfono también es de un solo SIM y a estas alturas me arriesgo a probar lo que sea para recuperar el equipo.
Gracias de nuevo por tú interés.
Click to expand...
Click to collapse
si lo subiere a mega amigo sino que mi internet es lento para mañana debería estar dejando el link

el_nabo said:
Dear Lyoks
Unfortunately for me my knowledge is not enough for that, that's why I ask for your help, there are two things that I can think of, get the original ZTE recovery for the A6 or get the original ROM but in zip format and flash it with the TWRP , this would have to be using some backup that was created using the TWRP, will I explain?
Do you have any backup you could send me? I would greatly appreciate it.
Thank you.
el_nabo
Click to expand...
Click to collapse
Hello, right here is service firmware https://4pda.ru/forum/index.php?s=&showtopic=846041&view=findpost&p=77561009
With it, you can bring your phone back to life, ALWAYS!

el_nabo said:
Hello, I appreciate your interest, I will write in Spanish and English to not to break the forum's rules.
I have to clarify that I did try to backup the ROM twice but errors appeared and didn't continue with the process, that's why I don't have the original ROM.
I am very interested in your backup, if you could share a link to download it it would be very good, my phone is also a single SIM and at this point I risk trying anything to recover the equipment.
Thank you again for your help.
Hola, aprecio tu interés, voy a escribir en español e ingles para no romper las reglas del foro.
Tengo que aclarar que sí intenté hacer el respaldo de la ROM dos veces pero aparecían errores y no continuaba con el proceso, es por eso que no tengo la ROM original.
Me interesa mucho tu respaldo, si pudieras compartir algún enlace para poder descargarlo sería muy bueno, mi teléfono también es de un solo SIM y a estas alturas me arriesgo a probar lo que sea para recuperar el equipo.
Gracias de nuevo por tú interés.
Click to expand...
Click to collapse
aqui tienes la rom stock solo descomprimes copias a la sd y restauras por twpr
link: https://mega.nz/#!FUYxmabY!HNIPfs2zH0FosZRoM86-htE0Ok488vsf7d2-wlgupI4

andresh-5 said:
aqui tienes la rom stock solo descomprimes copias a la sd y restauras por twpr
link: https://mega.nz/#!FUYxmabY!HNIPfs2zH0FosZRoM86-htE0Ok488vsf7d2-wlgupI4
Click to expand...
Click to collapse
Hello, thank you very much for your time and for the download link. After decompressing the .rar file you sent I had to rename the folder BACKUPS / 3203872 ..... (this is the serial number of your phone) by BACKUPS / 320676307 .... which is mine to be recognized by my cell phone and I could do the restore, all good until that moment, I restarted the phone and started with the CLARO logo, I thought that the problem was already solved but it was not so, now a legend appears that says "incorrect encryption" and that's it Do you know how to repair this? I did what Lyoks said in the final part of the first post he did but it didn't work.
Hola, muchas gracias por tu tiempo y por el enlace de la descarga. Después de descomprimir el archivo .rar que enviaste tuve que renombrar la carpeta BACKUPS/3203872..... (este es el numero de serie de tú teléfono) por BACKUPS/320676307.... que es el mío para que lo reconociera mi celular y pude hacer el restore, todo bien hasta ese momento, reinicié el teléfono y arrancó con el logo de CLARO, pensé que ya estaba resuelto el problema pero no fue así, ahora aparece una leyenda que dice "encriptación incorrecta" y eso es todo ¿sabes como reparar esto? hice lo que dijo Lyoks en la parte final del primer post que hizo pero no funcionó.
---------- Post added at 12:15 AM ---------- Previous post was at 12:01 AM ----------
lyoks said:
Hello, right here is service firmware https://4pda.ru/forum/index.php?s=&showtopic=846041&view=findpost&p=77561009
With it, you can bring your phone back to life, ALWAYS!
Click to expand...
Click to collapse
Hello, thank you very much for your time and for the link, I had to open a Yandex account, it was a bit difficult by the way since I had to use the Google translator, I don't understand any Russian! anyway.
I did what the post says but at the time of flashing it only took about two seconds and the green label SUCCESS appeared, I expected the flash to take longer so I think something is not right, I restarted the phone and nothing happened, it was as if I wouldn't have flashed anything. Do you know what I can do?

help how perform root Junsun V1pro 4G + 64G CarPlay Android 9.0 DSP.

Hello, does anyone know the procedure to root the Junsun V1pro 4G + 64G CarPlay Android 9.0 DSP device?
or if it is possible to install TWRP Recovery ?.
apparently it is a too new version and I can hardly find any information or firmware. Does anyone know this device and could help me?.
I leave you some photos of it.
https://drive.google.com/file/d/1SdvGPIuCNmLJEyVjwzyuUv2pTqx8E1_f/view?usp=sharing
https://drive.google.com/file/d/1mVPpY3BYOfMVjQ_0f83_UJcj9q2310LD/view?usp=sharing
https://drive.google.com/file/d/1M3LlaijsBsd_voG-wn4UBLgL5TB7detp/view?usp=sharing
https://drive.google.com/file/d/1KQ3wo1rlVjE-1vkBsXyI2BT6UmwXH0MY/view?usp=sharing
https://drive.google.com/file/d/1Col6WMtNp74DElVbf8zUU2q6e-x_nLPx/view?usp=sharing
Greetings to all and thanks.

Hola @alberto 755,
Tengo la misma radio, pero la verdad que estoy completamente perdido sobre como "rooterarla". Estoy usando la radio con un Golf 7, pero tengo muchos problemas con el canbus... algunos accesorios del coche no funcionan. Me podrías ayudar sobre su uso?. Muchas gracias!!!
-----------------------------------
Hi @alberto 755!!!,
I have the same radio too, but I'm complete lost about how to root it. I'm using this radio with a VW Golf 7, and I have a lot of issues with the canbus... some of the car original accessories doesn't works. Could you help me about how to use this unit?. Thanks a lot!

102649259 said:
Extract the contents of the file to a clean flash drive (FAT32).
Click to expand...
Click to collapse
Thank you for your reply @102649259!!!,
Sorry about the question, obviously I'm not an expert about android radios. If I load this ROM version, can this fix my problem with the canbus of my VW Golf 7?. I tried 2 canbus, one of RAISE and the other of HIWORLD. The best results I had it with the HIWORLD, but is not complete compatible with my car.
It is possible to load Android 10 to this radio?
Thank you!

Hola. gracias a todos y siento la tardanza en contestar . @monopilot veras yo estaba igual que tu he ido probando algunas cosas y solventando los problemas sobre la marcha...
empezando por el principio:
en mi caso solo me interesaba el root pero al buscar información sobre el dispositivo no aparece demasiada, y la que aparece tanto en este foro de Xda-deverlopers como en el foro ruso 4pda.ru para mi es muy confusa ya que al parecer hay múltiples dispositivos que parecen compartir similitudes.
Por este motivo me producía mucho temor el flashear algún update modificado con root y que al no ser del todo compatible consiguiese un boatloop. (O tal vez una inscripción roja permanente en pantalla como indican en algunos post por instalar por error un update compatible pero de otro fabricante).
Primero opte por lo mas fácil pero tras intentar comunicarme con el vendedor este no esta dispuesto a facilitarme el firmware de mi dispositivo por lo que no podría recuperarlo de una forma fácil si cometía algún error.
bien llegados a este punto estuve realizando múltiples pruebas, y descubrí que tal vez fue por cuestión de suerte pero el dispositivo si permite el reinicio en modo Fastboot desde el terminal emulator a pesar de no disponer de derechos root, para ello es tan simple como instalar la aplicación y teclear "reboot bootloader" tras pulsar enter el dispositivo reiniciar en modo Fastboot y lo comprobamos por las letras situadas en la esquina superior izquierda.
https://drive.google.com/file/d/1vIE9TQHu5-XF7Ljc0VyITqQUubk7IWsw/view?usp=sharing
Una vez descubierto esto estuve buscando por internet algún método de procedimiento para poder extraer el boot.bin a través de ADB shell utilizando el comando Cat (si se que es necesario root para ello pero aun así quería probar.. y efectivamente continúe con mucha suerte ya que conseguí extraer el boot.img desde mi propio dispositivo.)
Finalmente tras ello copie a la memoria interna del dispositivo el boot,img extraído anteriormente e instale la ultima versión de magisk manager.apk para parchear dicho archivo y flashear desde el pc usando Fastboot con el comando “Fastboot flash boot boot.img” tras ello cruce los dedos en el reinicio y todo salió bien tenia mi Stock ROM con root y magisk funcionando perfectamente.
¡¡Nota!!para poder conectar el dispositivo al pc por medio de Fastboot es necesario cambiar el tipo de conexión USB host para ello vamos a ajustes/sistema/opciones de desarrollo (código 3368) y en la esquina superior derecha pulsamos sobre los puntos y aparece el “submenú” Usb Mode en idioma chino cambiamos al de debajo y ya podemos conectar el USB del dispositivo con el USB del pc usando un cable USB tipo A-A con sus 2 puntas macho.
https://drive.google.com/file/d/1XCEJtNNWEuMSCWTc1aC2T2xzitc3N2go/view?usp=sharing
(nota.!!muy importante al terminar volver a dejar el usb host en su primera opción sino no funcionaran los usb conectados ya que quedarían configurados para conexión a pc).
En cuanto a tu pregunta sobre el canbus yo también he tenido problemas.(en mi caso el equipo lo tengo montado en un Ford Focus) y lo único que he podido realizar es ir probando diferentes configuraciones a partir del menú “ajustes de Fabrica/Selección de modelo” (el código de acceso es 3368) hay están las diferentes configuraciones Can bus para indicarle al dispositivo cual tienes instalado en mi caso he ido probando hasta dar con el más adecuado ya que no he encontrado mucha más información así que siento no poder ayudarte más.
@102649259 gracias por tu ayuda y el archivo facilitado, aunque encontré el método expuesto.
a pesar de ser mucho más complejo quizás a alguien le pueda ayudar esta información.
Os dejo unas web de ejmplos con información sobre la extracción del boot.img a través de ADB (por la red hay mucha información al respecto).
https://www.cnblogs.com/shangdawei/p/4514128.html
http://gadget-tweak.blogspot.com/p/how-to-pullextract-boot-recovery-system.html
por ultimo dejo un .rar tanto con las herramientas ADB/Fastboot junto con sus drivers el archivo Boot.img original y parcheado con magisk de mi dispositivo por si a alguien pudiese ayudarle en algún momento solo tendría que flashear a través de fastboot.
https://drive.google.com/file/d/12TN65jI9p7EpEs9sBo06PO3x6BD8z735/view?usp=sharing
un saludo y muchas gracias a todos por la ayuda.
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Hi. Thank you all and I am sorry for the delay in answering. @monopiLoT you will see I was just like you I have been trying some things and solving problems on the go ...
starting at the beginning:
in my case I was only interested in the root but when looking for information about the device it does not appear too much, and the one that appears both in this Xda-deverlopers forum and in the Russian forum 4pda.ru for me is very confusing since apparently there are multiple devices that seem to share similarities.
For this reason, I was very afraid to flash a modified update with root and that being not completely compatible,would get a bootloop. (Or perhaps a permanent red inscription on the screen as indicated in some post for mistakenly installing a compatible update but from another manufacturer).
First opt for the easiest but after trying to communicate with the seller, he is not willing to provide me with the firmware of my device so I could not recover it easily if I made a mistake.
Well arrived at this point I was conducting multiple tests, and I discovered that maybe it was a matter of luck but the device does allow the restart in Fastboot mode since terminal emulator despite not having root rights, for this it is as simple as installing the application and type "reboot bootloader" after pressing enter the device will restart in Fastboot mode and we check it by the letters located in the upper left corner
https://drive.google.com/file/d/1vIE9TQHu5-XF7Ljc0VyITqQUubk7IWsw/view?usp=sharing
Once this was discovered I was searching the internet for some method of procedure to be able to extract the boot.bin through the ADB shell using the Cat command (yes I know that root is necessary for it but I still wanted to try .. and effectively I continued with great luck since I managed to extract the boot.img from my own device.)
Finally, after that, copy the boot, img previously extracted, to the internal memory of the device and install the latest version of magisk manager.apk to patch this file and flash from the pc using Fastboot with the command "Fastboot flash boot boot.img" after it I crossed my fingers on the restart and everything went well I had my Stock ROM with root and magisk working perfectly.
Note !! In order to connect the device to the PC through Fastboot it is necessary to change the type of USB host connection. To do this, go to settings / system / development options (code 3368) and in the upper right corner click on the and the Usb Mode “submenu” appears in Chinese language. We change to the one below and we can now connect the USB of the device with the USB of the PC using a USB type AA cable with its 2 male ends.
https://drive.google.com/file/d/1XCEJtNNWEuMSCWTc1aC2T2xzitc3N2go/view?usp=sharing
(note. !! very important when you finish leaving the host usb in its first option if the connected usb will not work since they would be configured for connection to a pc).
As for your question about the canbus, I have also had problems (in my case I have it mounted on a Ford Focus) and the only thing I have been able to do is try different configurations from the menu “Factory settings / Selection model ”(the access code is 3368) there are the different Can bus configurations to indicate to the device which one you have installed in my case I have been trying to find the most suitable since I have not found much more information so I am sorry I cannot help you more.
@ 102649259 thanks for your help and the provided file, although I found the exposed method.
Despite being much more complex, perhaps someone can help with this information.
I leave you some example websites with information on the extraction of boot.img through ADB (there is a lot of information about it on the network).
https://www.cnblogs.com/shangdawei/p/4514128.html
http://gadget-tweak.blogspot.com/p/how-to-pullextract-boot-recovery-system.html
finally I leave a .rar both with the ADB / Fastboot tools along with its drivers the original Boot.img file and patched with magisk of my device in case anyone could help you at some point I would only have to flash through fastboot.
https://drive.google.com/file/d/12TN65jI9p7EpEs9sBo06PO3x6BD8z735/view?usp=sharing
greetings and thank you all very much for the help.

Hi guys,
I am also the owner of Junsun V1 pro 4G + 64G.
Thanks for sharing your experience with this device,
Do you also have a bluetooth problem?
I have one that I can only pair one device at a time. In addition, it happens that after pairing the phone, all contacts are lost.

Hi @grzech666.
If I also ran into the same problem when trying to link the OBD to use torque. in my case when entering Factory Setting (code 3368) of the last options in the list, OBD was in the off state, I changed it to on and now it allows me the connection, try it.
As for the deletion of contacts, this has not happened to me.
Anyway, I am still trying to get the vendor to provide me with the firmware of my device. If I can get it, I will upload it in this post in case it can help someone.
Greetings.

Thanks for replying,
About software, I already get it from my supplier but I was afraid to use it. If you are interested, I can put it on my Google drive or samwere else.

grzech666 said:
Thanks for replying,
About software, I already get it from my supplier but I was afraid to use it. If you are interested, I can put it on my Google drive or samwere else.
Click to expand...
Click to collapse
yes please!

yes please.
if you can provide a download link along with a photos of your system to ensure compatibility before installing.
you it I would be very grateful.
Note!!in the MCU section The model number G23 or G32 is very important since installing a different version can produce brick very difficult to recover.
my device information:
https://drive.google.com/file/d/1SdvGPIuCNmLJEyVjwzyuUv2pTqx8E1_f/view
https://drive.google.com/file/d/1kuthqiR1Opz8HdnmGnQ3ZOAERMpx39a6/view?usp=sharing
https://drive.google.com/file/d/1mVPpY3BYOfMVjQ_0f83_UJcj9q2310LD/view

Screens of my unit you can find here:
https://forum.xda-developers.com/showpost.php?p=82670707&postcount=16
let me know if you want more info
I also uploaded mentioned firmware:
https://drive.google.com/file/d/1Zja9xorBD1NLnDd7kBC3HX6XrwRJNmcf/view?usp=sharing

grzech666 said:
Screens of my unit you can find here:
https://forum.xda-developers.com/showpost.php?p=82670707&postcount=16
let me know if you want more info
I also uploaded mentioned firmware:
https://drive.google.com/file/d/1Zja9xorBD1NLnDd7kBC3HX6XrwRJNmcf/view?usp=sharing
Click to expand...
Click to collapse
Thank you very much for the firmware, the devices are identical.
Although my device is updated to date 05-03-2020, makes me think if that could be the reason for your problems with OBD contacts and connection?
continue with the problem ?.
Have you tried checking for updates through the device?.
Regards, and thank you very much.

Does anybody know if it is possible to flash an original joying firmware on this unit?

alberto 755 said:
Hola. gracias a todos y siento la tardanza en contestar . @monopilot veras yo estaba igual que tu he ido probando algunas cosas y solventando los problemas sobre la marcha...
empezando por el principio:
en mi caso solo me interesaba el root pero al buscar información sobre el dispositivo no aparece demasiada, y la que aparece tanto en este foro de Xda-deverlopers como en el foro ruso 4pda.ru para mi es muy confusa ya que al parecer hay múltiples dispositivos que parecen compartir similitudes.
Por este motivo me producía mucho temor el flashear algún update modificado con root y que al no ser del todo compatible consiguiese un boatloop. (O tal vez una inscripción roja permanente en pantalla como indican en algunos post por instalar por error un update compatible pero de otro fabricante).
Primero opte por lo mas fácil pero tras intentar comunicarme con el vendedor este no esta dispuesto a facilitarme el firmware de mi dispositivo por lo que no podría recuperarlo de una forma fácil si cometía algún error.
bien llegados a este punto estuve realizando múltiples pruebas, y descubrí que tal vez fue por cuestión de suerte pero el dispositivo si permite el reinicio en modo Fastboot desde el terminal emulator a pesar de no disponer de derechos root, para ello es tan simple como instalar la aplicación y teclear "reboot bootloader" tras pulsar enter el dispositivo reiniciar en modo Fastboot y lo comprobamos por las letras situadas en la esquina superior izquierda.
https://drive.google.com/file/d/1vIE9TQHu5-XF7Ljc0VyITqQUubk7IWsw/view?usp=sharing
Una vez descubierto esto estuve buscando por internet algún método de procedimiento para poder extraer el boot.bin a través de ADB shell utilizando el comando Cat (si se que es necesario root para ello pero aun así quería probar.. y efectivamente continúe con mucha suerte ya que conseguí extraer el boot.img desde mi propio dispositivo.)
Finalmente tras ello copie a la memoria interna del dispositivo el boot,img extraído anteriormente e instale la ultima versión de magisk manager.apk para parchear dicho archivo y flashear desde el pc usando Fastboot con el comando “Fastboot flash boot boot.img” tras ello cruce los dedos en el reinicio y todo salió bien tenia mi Stock ROM con root y magisk funcionando perfectamente.
¡¡Nota!!para poder conectar el dispositivo al pc por medio de Fastboot es necesario cambiar el tipo de conexión USB host para ello vamos a ajustes/sistema/opciones de desarrollo (código 3368) y en la esquina superior derecha pulsamos sobre los puntos y aparece el “submenú” Usb Mode en idioma chino cambiamos al de debajo y ya podemos conectar el USB del dispositivo con el USB del pc usando un cable USB tipo A-A con sus 2 puntas macho.
https://drive.google.com/file/d/1XCEJtNNWEuMSCWTc1aC2T2xzitc3N2go/view?usp=sharing
(nota.!!muy importante al terminar volver a dejar el usb host en su primera opción sino no funcionaran los usb conectados ya que quedarían configurados para conexión a pc).
En cuanto a tu pregunta sobre el canbus yo también he tenido problemas.(en mi caso el equipo lo tengo montado en un Ford Focus) y lo único que he podido realizar es ir probando diferentes configuraciones a partir del menú “ajustes de Fabrica/Selección de modelo” (el código de acceso es 3368) hay están las diferentes configuraciones Can bus para indicarle al dispositivo cual tienes instalado en mi caso he ido probando hasta dar con el más adecuado ya que no he encontrado mucha más información así que siento no poder ayudarte más.
@102649259 gracias por tu ayuda y el archivo facilitado, aunque encontré el método expuesto.
a pesar de ser mucho más complejo quizás a alguien le pueda ayudar esta información.
Os dejo unas web de ejmplos con información sobre la extracción del boot.img a través de ADB (por la red hay mucha información al respecto).
https://www.cnblogs.com/shangdawei/p/4514128.html
http://gadget-tweak.blogspot.com/p/how-to-pullextract-boot-recovery-system.html
por ultimo dejo un .rar tanto con las herramientas ADB/Fastboot junto con sus drivers el archivo Boot.img original y parcheado con magisk de mi dispositivo por si a alguien pudiese ayudarle en algún momento solo tendría que flashear a través de fastboot.
https://drive.google.com/file/d/12TN65jI9p7EpEs9sBo06PO3x6BD8z735/view?usp=sharing
un saludo y muchas gracias a todos por la ayuda.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hi. Thank you all and I am sorry for the delay in answering. @monopiLoT you will see I was just like you I have been trying some things and solving problems on the go ...
starting at the beginning:
in my case I was only interested in the root but when looking for information about the device it does not appear too much, and the one that appears both in this Xda-deverlopers forum and in the Russian forum 4pda.ru for me is very confusing since apparently there are multiple devices that seem to share similarities.
For this reason, I was very afraid to flash a modified update with root and that being not completely compatible,would get a bootloop. (Or perhaps a permanent red inscription on the screen as indicated in some post for mistakenly installing a compatible update but from another manufacturer).
First opt for the easiest but after trying to communicate with the seller, he is not willing to provide me with the firmware of my device so I could not recover it easily if I made a mistake.
Well arrived at this point I was conducting multiple tests, and I discovered that maybe it was a matter of luck but the device does allow the restart in Fastboot mode since terminal emulator despite not having root rights, for this it is as simple as installing the application and type "reboot bootloader" after pressing enter the device will restart in Fastboot mode and we check it by the letters located in the upper left corner
https://drive.google.com/file/d/1vIE9TQHu5-XF7Ljc0VyITqQUubk7IWsw/view?usp=sharing
Once this was discovered I was searching the internet for some method of procedure to be able to extract the boot.bin through the ADB shell using the Cat command (yes I know that root is necessary for it but I still wanted to try .. and effectively I continued with great luck since I managed to extract the boot.img from my own device.)
Finally, after that, copy the boot, img previously extracted, to the internal memory of the device and install the latest version of magisk manager.apk to patch this file and flash from the pc using Fastboot with the command "Fastboot flash boot boot.img" after it I crossed my fingers on the restart and everything went well I had my Stock ROM with root and magisk working perfectly.
Note !! In order to connect the device to the PC through Fastboot it is necessary to change the type of USB host connection. To do this, go to settings / system / development options (code 3368) and in the upper right corner click on the and the Usb Mode “submenu” appears in Chinese language. We change to the one below and we can now connect the USB of the device with the USB of the PC using a USB type AA cable with its 2 male ends.
https://drive.google.com/file/d/1XCEJtNNWEuMSCWTc1aC2T2xzitc3N2go/view?usp=sharing
(note. !! very important when you finish leaving the host usb in its first option if the connected usb will not work since they would be configured for connection to a pc).
As for your question about the canbus, I have also had problems (in my case I have it mounted on a Ford Focus) and the only thing I have been able to do is try different configurations from the menu “Factory settings / Selection model ”(the access code is 3368) there are the different Can bus configurations to indicate to the device which one you have installed in my case I have been trying to find the most suitable since I have not found much more information so I am sorry I cannot help you more.
@ 102649259 thanks for your help and the provided file, although I found the exposed method.
Despite being much more complex, perhaps someone can help with this information.
I leave you some example websites with information on the extraction of boot.img through ADB (there is a lot of information about it on the network).
https://www.cnblogs.com/shangdawei/p/4514128.html
http://gadget-tweak.blogspot.com/p/how-to-pullextract-boot-recovery-system.html
finally I leave a .rar both with the ADB / Fastboot tools along with its drivers the original Boot.img file and patched with magisk of my device in case anyone could help you at some point I would only have to flash through fastboot.
https://drive.google.com/file/d/12TN65jI9p7EpEs9sBo06PO3x6BD8z735/view?usp=sharing
greetings and thank you all very much for the help.
Click to expand...
Click to collapse
Hello @alberto 755,
thank you for your write-up. Can you share how you were able to extract boot.img from your unit.
I tried through adb shell but failed without read permission.

Hello. I am glad I found some information about this unit I was following price drops on Aliexpress.
I am looking for the plastic frame version for my peugeot 206cc. Junsun seems to mount same V1 pro 4+64 for all the car versions.
Firmware and root are some of my concerns but the procedure appears to be like standard for phones using magisk method, it is a relieve to know from you that because I did it before for tablets and phones and it is pretty straight forward and easy to archieve.
About the read/write permissions problem may be with sudo plus chmod could do the trick before extracting the boot img, I don't know but there are a lot of magisk procedure information over there and it sholud not be a headache at all.
The question I have for you users from this radio isn't about software but sound and FM. I am from Spain and FM Radio is really a concern to me, for the work over all.
- About the Radio: I want to know how well it performs scan, RDS, AF mode and reception.
- I am going to replace the whole speaker system, it sounds bad for the music I listen to and the old Clarion RD3 DSP doesn't perform many options to get clean lows. Death, black, doom metal is really dificult to adjust with standard settings. What do you think if I get some Alpine good stuff speakers with sepparated ways for the 17 cm front and 10 cm rear speakers? Could I connect an active sobwoofer like those flat from Pioneer or Kenwood? I mean, the RCA out could archieve the sobwoofer out?
I was about to buy a Pioneer SPH-10BT instead an Android Unit because in the past i have troubles with other AHU and this Pioneer sure it makes its job really good. I just want to know if I am going to do a good purchase in the terms of audio quality. In the end, the sound is what most matters.
Thank you for your attention, kind regards

Root can be attained by Magisk patched boot.img but it will mute apps that utilize Google TTS, examples Google Maps, Assistant and Waze. I read somewhere Play store will have problem as well (I didn't test that).
If you are really into sound quality and radio reception, you should pass on this android unit. I have used 2 android units before this one and they sound much better and autoscan picked up all stations.
Autoscan with this unit picks up zero station, I have to manually input the station frequency and it sounds soft and mono. Switching from stereo and mono makes no difference.
I've stopped using the built-in radio and rely on tune-in app permanently, even that doesn't sound as good as before.
You should read how owners have tried to change the built-in amp and radio chip to get better sound, https://4pda.ru/forum/index.php?showtopic=938749&st=5800
Contrary to the Junsun Aliexpress ads, the RCA cable come without mic input. The seller tells me the unit don't support external mic input, the internal mic has improved and unit "updated". So far, voice command and phone calls are okay with normal road noise.
I run focal speakers with DLS Ultimate A3 in the front and an active subwoofer through the RCA subwoofer output in the trunk.

Regarding internal microphone I wasn't happy with them. Fortunately my units came with cable for external mic. I bought additional mic and installed it, now voice is much better.

gpmg762 said:
Root can be attained by Magisk patched boot.img but it will mute apps that utilize Google TTS, examples Google Maps, Assistant and Waze. I read somewhere Play store will have problem as well (I didn't test that).
If you are really into sound quality and radio reception, you should pass on this android unit. I have used 2 android units before this one and they sound much better and autoscan picked up all stations.
Autoscan with this unit picks up zero station, I have to manually input the station frequency and it sounds soft and mono. Switching from stereo and mono makes no difference.
I've stopped using the built-in radio and rely on tune-in app permanently, even that doesn't sound as good as before.
You should read how owners have tried to change the built-in amp and radio chip to get better sound, https://4pda.ru/forum/index.php?showtopic=938749&st=5800
Contrary to the Junsun Aliexpress ads, the RCA cable come without mic input. The seller tells me the unit don't support external mic input, the internal mic has improved and unit "updated". So far, voice command and phone calls are okay with normal road noise.
I run focal speakers with DLS Ultimate A3 in the front and an active subwoofer through the RCA subwoofer output in the trunk.
Click to expand...
Click to collapse
Thank you about the sound opinion, is my most important concern, also FM reception is very important to me, as I said because the work. So I am going to boy a good Alpine or Pioneer stereo sigle DIN and just using Android auto or Pioneer sync app it would do the job. The only thing I could gain with AHU is a bigger display (altough worse than my phone resolution of course and I think they are not good with sun brightness reflections no matter how much chinese cheap IPS has). I keep thinking on SPH-10BT or similar.

Hi! I have a Junsun V1 PRO, 4GB/64GB WI-FI+4G.
It's a fake Android 9.0 it comes with API 27.
I ask to the AliExpress seller and he send to me a .bin file to solve it ¿????
It's a bin file called "Solve MCU error.bin" and the size is only 131kb, so I'm not sure if it will solve anything jajajja
So I don't know if try to flash it or not. If you want it, ask for it privately but I'm not responsible if you break your unit.
I have problems to autostart apps. I want to autostart "Radardroid" and "Blockada" but I think that it only autostart the last used app.
I solved the problem of loosing contacts disabling the Google synch.
Do you know how to change/move/replace the icons on the first screen?
And any way to change the "voice search" button (selected via wheel buttons settings) to "Google Assistant"?
Any app recommendations to use FM? I don't like the one that comes with the head unit.
Thank you!!
Enviado desde mi MI 9 mediante Tapatalk
View attachment 5062851View attachment 5062849

chemixzgz said:
Thank you about the sound opinion, is my most important concern, also FM reception is very important to me, as I said because the work. So I am going to boy a good Alpine or Pioneer stereo sigle DIN and just using Android auto or Pioneer sync app it would do the job. The only thing I could gain with AHU is a bigger display (altough worse than my phone resolution of course and I think they are not good with sun brightness reflections no matter how much chinese cheap IPS has). I keep thinking on SPH-10BT or similar.
Click to expand...
Click to collapse
I have since found Poweramp as an alternative for default radio and audio player replacement while researching USB audio and DSD. I recommend digital radio if mobile data usage is not restricted.
I am getting a matte tempered glass screen protector to cut down the sun's reflection.
The SPH-10BT will sound better, it's a proper head-unit after all.

Redmi note 7 dead / Redmi note 7 muerto

After trying to flash xiaomi.eu, the computer restarted, but it stayed dead, I cannot enter fasboot or recovery, when I connect it to the pc it makes connection noise but nothing appears. the screen does not turn on. Someone tell me what to do please
Despues de tratar de flashear xiaomi.eu se reinicio el equipo, pero se quedo muerto no puedo, entrar a fasboot ni a recovery, cuando lo conecto al pc hace ruido de conexión pero no aparece nada. la pantalla no enciende. Alguien que me diga que hacer porfa

Gergonza1974 said:
After trying to flash xiaomi.eu, the computer restarted, but it stayed dead, I cannot enter fasboot or recovery, when I connect it to the pc it makes connection noise but nothing appears. the screen does not turn on. Someone tell me what to do please
Despues de tratar de flashear xiaomi.eu se reinicio el equipo, pero se quedo muerto no puedo, entrar a fasboot ni a recovery, cuando lo conecto al pc hace ruido de conexión pero no aparece nada. la pantalla no enciende. Alguien que me diga que hacer porfa
Click to expand...
Click to collapse
Maybe edl mode (testpoint) help. Google it

Check what you see in device manager when connected to usb.
If device is not completely dead, then you can press hold power button and vol- low button together to enter fastboot mode.
If you see any other symptom, need to check device manager first to determine the situation.

joke19 said:
Tal vez el modo edl (punto de prueba) ayude. buscalo en Gogoogle
Click to expand...
Click to collapse

mia fue la solucion muchas gracias por respder.