Big troubles, mate 8 bricked after debrand and nougat update - Mate 8 Q&A, Help & Troubleshooting

Hi everyone...
I've big trouble with my mate 8...
It was an L29 from the beginning. I was under KANGVIP B386 Rom, but i don't remember the region... In build it was writen C00B386 i believe...
I try to update to Nougat. But Kang nougat it's only for AL10. So, i debrand to AL10 and install finally KANGVIP B580 for AL10. Rom was booting, but i got several problems during flash with TWRP 3.1.1.
Rom was booting, but i was enable to have my Sim 2 port working. Only the first was working, and, only in 2G... No way to activate 4G even 3G.
I don't know if it was a software problems or a hardware. I allready got problems with my sim port...
So, big problems began... I tried to rollback... But i don't find any How to rollback for AL10...
I tried reflash the rom B380, but still the same issue with SIM port.
I tried to reflash MM rom, but i failed, I tried the 3 buttons method with update.app but it failed....
Now, the phone doesn'boot, no way to boot in recovery, and the worth, now i'm unable to flash anything in fastboot. Each time i try to do something in fastboot, i got : FAILED (command not allowed)...
It's the first time for me. I Always arrive to unbrick my phone, even when i lost my IMEI and EFS parts. But now, i give up... Any idea?
I tried many update.app file with 3 buttons method, but each one failed at the beginning (5%)
Sorry for my english, i can understand it, but it's difficult to write it for me.

pystolero said:
Hi everyone...
I've big trouble with my mate 8...
It was an L29 from the beginning. I was under KANGVIP B386 Rom, but i don't remember the region... In build it was writen C00B386 i believe...
I try to update to Nougat. But Kang nougat it's only for AL10. So, i debrand to AL10 and install finally KANGVIP B580 for AL10. Rom was booting, but i got several problems during flash with TWRP 3.1.1.
Rom was booting, but i was enable to have my Sim 2 port working. Only the first was working, and, only in 2G... No way to activate 4G even 3G.
I don't know if it was a software problems or a hardware. I allready got problems with my sim port...
So, big problems began... I tried to rollback... But i don't find any How to rollback for AL10...
I tried reflash the rom B380, but still the same issue with SIM port.
I tried to reflash MM rom, but i failed, I tried the 3 buttons method with update.app but it failed....
Now, the phone doesn'boot, no way to boot in recovery, and the worth, now i'm unable to flash anything in fastboot. Each time i try to do something in fastboot, i got : FAILED (command not allowed)...
It's the first time for me. I Always arrive to unbrick my phone, even when i lost my IMEI and EFS parts. But now, i give up... Any idea?
I tried many update.app file with 3 buttons method, but each one failed at the beginning (5%)
Sorry for my english, i can understand it, but it's difficult to write it for me.
Click to expand...
Click to collapse
Hello,
If you are able to go in download mode perhaps this tuto will help you :
https://forum.xda-developers.com/mate-8/help/how-to-unbrick-l29-al10-stuck-fastboot-t3599775
It worked for me, just have to pay 15€, but solved my problem !

scotty2b said:
If you are able to go in download mode perhaps this tuto will help you :
https://forum.xda-developers.com/mate-8/help/how-to-unbrick-l29-al10-stuck-fastboot-t3599775
Click to expand...
Click to collapse
Thank you for your help. Unfortunately, when i saw that every command failed on fastboot, i thought, maybe my phone has still an unlocked bootloader even if it showed on the white screnn "phone unlock".
At this time, I was still able to boot on fastboot.
I've tried an other unlocking with fastboot, but after the reboot, no way, block on the screen "you phone has been unlocked and can't be trust..." no boot, impossible to boot on recovery, but the worst, imposssible to boot on fastboot!!!
I've tried everything, i'm blocked on "you phone has been unlocked and can't be trust..."
Yet, I think i can say that it is definitely a bricked phone... My first in 7 years, since my first android phone (galaxy spica)

pystolero said:
Thank you for your help. Unfortunately, when i saw that every command failed on fastboot, i thought, maybe my phone has still an unlocked bootloader even if it showed on the white screnn "phone unlock".
At this time, I was still able to boot on fastboot.
I've tried an other unlocking with fastboot, but after the reboot, no way, block on the screen "you phone has been unlocked and can't be trust..." no boot, impossible to boot on recovery, but the worst, imposssible to boot on fastboot!!!
I've tried everything, i'm blocked on "you phone has been unlocked and can't be trust..."
Yet, I think i can say that it is definitely a bricked phone... My first in 7 years, since my first android phone (galaxy spica)
Click to expand...
Click to collapse
I'm sure you're wrong, if your phone can go to fastboot mode, bootloader locked or unlocked, you can unbrick it with dc-phoenix, I've done it, so you can.
Just try with free dc-phoenix login test, if your phone is recognized, you'll just have to pay 15€ and unbrick it.

You don't read well. I'm not able to boot on fastboot.
Neither in recovery !

pystolero said:
You don't read well. I'm not able to boot on fastboot.
Neither in recovery !
Click to expand...
Click to collapse
Excuses moi mais la* j'avais lu :
Now, the phone doesn'boot, no way to boot in recovery, and the worth, now i'm unable to flash anything in fastboot. Each time i try to do something in fastboot, i got : FAILED (command not allowed)...
C'est donc que ton telephone est reconnu par le PC et que tu dois bien etre dans une sorte de fastboot.
Pour ma part j'avais flashe une mauvaise rom et le seul indice que j'avais c'etait la legere vibration lors de l'appui sur les boutons pour passer en mode download (écran noir tout le temps, pas de réponse au branchement de l'alim, nada). Avec adb, impossible de faire quoi que ce soit, impossible d'ecrire sur le telephone et pourtant dc-phoenix a fonctionne a* merveille.
Moi aussi j'etais tres septique surtout que j'ai pas forcement envie de gaspiller 15 euros, mais au final plutot que de jeter mon mate 8 je me suis resolu a* payer l'equivalent d'un tour de manege .
Encore une fois tu ne prends pas beaucoup de risque a tester dc-phoenix en mode gratuit, le payement ne sera demande qu'au moment de lancer les commandes sur ton telephone.
https://www.dc-unlocker.com est partenaire officiel de Huawei et a ce titre je pense que leur logiciel a des droits que nous ne pouvons avoir avec les commandes classique adb.
Moi je dis ca, mais je dis rien...
A toi de jouer

scotty2b said:
Excuses moi mais la* j'avais lu :
Now, the phone doesn'boot, no way to boot in recovery, and the worth, now i'm unable to flash anything in fastboot. Each time i try to do something in fastboot, i got : FAILED (command not allowed)...
C'est donc que ton telephone est reconnu par le PC et que tu dois bien etre dans une sorte de fastboot.
Pour ma part j'avais flashe une mauvaise rom et le seul indice que j'avais c'etait la legere vibration lors de l'appui sur les boutons pour passer en mode download (écran noir tout le temps, pas de réponse au branchement de l'alim, nada). Avec adb, impossible de faire quoi que ce soit, impossible d'ecrire sur le telephone et pourtant dc-phoenix a fonctionne a* merveille.
Moi aussi j'etais tres septique surtout que j'ai pas forcement envie de gaspiller 15 euros, mais au final plutot que de jeter mon mate 8 je me suis resolu a* payer l'equivalent d'un tour de manege .
Encore une fois tu ne prends pas beaucoup de risque a tester dc-phoenix en mode gratuit, le payement ne sera demande qu'au moment de lancer les commandes sur ton telephone.
https://www.dc-unlocker.com est partenaire officiel de Huawei et a ce titre je pense que leur logiciel a des droits que nous ne pouvons avoir avec les commandes classique adb.
Moi je dis ca, mais je dis rien...
A toi de jouer
Click to expand...
Click to collapse
No problem, you quote message which was posted yesterday morning... I totally brick the phone yesterday evening... When i post first time, i was still able to boot in fastboot, but not yet...
Mode Frenche : je sais pas, 15 balles probablement pour rien, j'avoue que j'y crois pas trop. le logiciel boot sur rien du tout... Qu'il ne boot même pas sous fastboot, en branchant le cable usb et en appuyant sur volume - je me dis qu'il est vraiment completement brické...

Ok, I've tried DC-phoenix soft, but, when I click on Upgrade, of course It is prompt that "no device in fastboot mode"...
Like I said, i'm unable to boot in fastboot mode... Incredible, but true...

pystolero said:
Ok, I've tried DC-phoenix soft, but, when I click on Upgrade, of course It is prompt that "no device in fastboot mode"...
Like I said, i'm unable to boot in fastboot mode... Incredible, but true...
Click to expand...
Click to collapse
How did you lose even the fastboot mode?
Have you tried eRecovery through WIFI?
Have you tried to recover through Hi Suite?

If you still need help on this: Maybe you forgot to connect your phone to a PC before entering fastboot with power + volume down?

Device is still bricked. I can now boot on fastboot. Also I can boot on recovery and even in TWRP.
But, impossible to flash anything else than recovery, boot or system on fastboot. In TWRP, unable to flash anything. Always prompt the same message "unable to mount data" or "invalid user argument" .
Also tried to update with stock recovery with dload method but unable to find the right file.
I'm lost in flash... I don't know where I am... Al10 or L29, nougat or mm I've tried so many things...

pystolero said:
I'm lost in flash... I don't know where I am... Al10 or L29, nougat or mm I've tried so many things...
Click to expand...
Click to collapse
Sounds like you messed up pretty badly - like I did recently.
If you are completely lost like this, but can now boot to fastboot again, you may want to start over using this guide. You'll have to pay 15 bucks for it, but for me it worked like a charm. Obviously, I can't guarantee anything, but here's how it worked for me, step by step. I hope it works out for you, too. :fingers-crossed:

Patneu said:
Sounds like you messed up pretty badly - like I did recently.
If you are completely lost like this, but can now boot to fastboot again, you may want to start over using this guide. You'll have to pay 15 bucks for it, but for me it worked like a charm. Obviously, I can't guarantee anything, but here's how it worked for me, step by step. I hope it works out for you, too. :fingers-crossed:
Click to expand...
Click to collapse
I tried, and it failed.

Sorry to hear that. I just thought I'd mention it, 'cause it worked so well for me.
Maybe we'll figure it out: If you followed the guide, at which step did it fail? Did you get an error message and if so, where did it come from and what does it say? Are you sure you used the right stock / custom ROM for your device?

Related

[Q] ayudaaaaa d838 muertoooo

ayuda flashee una rom diferente en mi lg g pro 2 y ya no enciende,con flashtool,no enciende ni en modo download ni nada,ni siquiera instala controladores,ayudenme se los agradeceria mucho.........
help meeee
como revivo lg g pro 2 ya no enciende nada ni la pc me reconoce,ayuda please,
Siga el webiste y descargar el archivo kdz.
http://www.lg-phones.org/official stock-lg-g-pro-2-tot-firmware-rom.html
A continuación, utilice la herramienta de LG Flash para flashear el archivo a su teléfono.
Yo no sé español, pero utilizando Google Translate para transmitir este mensaje. No sé y no puedo entender su situación exacta, pero podría ayudar.:good::good::good:
thank you very much friend, but do not turn on the screen, or let me install drivers, what happens is that I put a rom with flashtool the f350 model when mine is D838, and not returned to light, quite appreciate your help, many thanks and greetings from mexico
oprink said:
thank you very much friend, but do not turn on the screen, or let me install drivers, what happens is that I put a rom with flashtool the f350 model when mine is D838, and not returned to light, quite appreciate your help, many thanks and greetings from mexico
Click to expand...
Click to collapse
Hey,
Please answer as much as possible:
1) Can you see the LG logo ? (when starting up. Try on full charge)
2) Can you get to the download mode ?
3) did you download the kdz file ? (follow http://www.lg-phones.org/how-to-flash-unbrick-lg-g-pro-2-with-a-kdz-firmware.html
4) if you can install using kdz method it will be much easier as the software does all the work . So install all the tools mentioned in the site and see if it can detect the phone.
All the best :good:
EDIT:
Step 1: Enter Download mode (You should be able to enter by pressing Volume Up + Power key. hold for 15seconds)
Step 2: Download kdz file for your model
Step 3 Use LG Flash Tool 2014 (Works 100%)
Follow http://forum.xda-developers.com/showthread.php?t=2797190 in detail.
I tried it.
roykulkarni said:
Hey,
Please answer as much as possible:
1) Can you see the LG logo ? (when starting up. Try on full charge)
2) Can you get to the download mode ?
3) did you download the kdz file ? (follow http://www.lg-phones.org/how-to-flash-unbrick-lg-g-pro-2-with-a-kdz-firmware.html
4) if you can install using kdz method it will be much easier as the software does all the work . So install all the tools mentioned in the site and see if it can detect the phone.
All the best :good:
EDIT:
Step 1: Enter Download mode (You should be able to enter by pressing Volume Up + Power key. hold for 15seconds)
Step 2: Download kdz file for your model
Step 3 Use LG Flash Tool 2014 (Works 100%)
Follow http://forum.xda-developers.com/showthread.php?t=2797190 in detail.
I tried it.
Click to expand...
Click to collapse
Hello friend, you can not see the logo or turn on the screen, I do not even charge when connected to the pc does not recognize my drivers, I just put something like qualcomm, devices

Question Hard reset nokia 2.2???

<Moderator Edit>
English only on xda please!
Translation added:
Well I tried to hard reset an Android device exactly the NOKIA 2.2 TA 1179 model launched in my country Colombia in the same year 2019 second semester. but it does not work.
I have tried with volume + and power and it only reboots and reboots the device
with volume- and power and the device enters fastboot mode
with both volume and power and it only vibrates but neither turns on nor shows the green recovery android
I really don't know what other methods to try is a device that has the volume + keys and less than the power and google asistant
I would be very grateful to you people of XDA DEVELOPERS if you could start adding content of this cell phone to your page since it does not appear in the list of devices that have
and if you could help me with how to make it hard reset or flash it since I already tried with OSTLA, SP, MAGICBOX THUNDER. and none of those methods allowed me to do anything on the phone except that in any video the model TA1179 comes out
What's more is ALMOST IMPOSSIBLE TO FIND THE STOCK ROM OF THIS DEVICE
I ASK YOU FOR HELP PLEASE !!!!!!
Bueno he intentado hacerle un hard reset a un dispositivo android exactamente el modelo NOKIA 2.2 TA 1179 lanzado en mi pais colombia en este mismo año 2019 segundo semestre. pero no funciona.
he tratado con volumen+ y power y solo se reinicia y se reinicia el dispositivo
con volumen- y power y el dispositivo entra en modo fastboot
con las dos de volumen y power y solo vibra pero ni enciende ni muestra el androide verde recovery
la verdad no se que otros metodos tratar es un dispositivo que cuenta con las teclas de volumen + y menos ademas de la de encendido (power) y la de google asistant
les agradeceria mucho a ustedes gente de XDA DEVELOPERS si pudieran comenzar a agregar contenido de este celular en su pagina ya que hasta el momento no sale en la lista de dispositivos que tienen
y si me pudieran ayudar con la forma de hacerle hard reset o flashearlo ya que ya intente con OSTLA, SP, MAGICBOX THUNDER. y ninun metodo de esos me permitio hacerle nada al telefono fuera de que en ningun video sale el modelo TA1179
es mas es CASI IMPOSIBLE HALLAR LA STOCK ROM DE ESTE DISPOSITIVO
LES PIDO AYUDA POR FAVOR!!!!!!
Nokia 2.2
To get into recovery mode you have to do the power button and volume while adding USB to computer.
As for hard reset just do.it through settings if you can get into phone or through fastboot which is power and volume up and down altogether for a few seconds....
I have the same problem and it still hasn't worked for me, keep entering => Fastboot mode ...
Nokia 2.2 Hard Reset
alxzld said:
<Moderator Edit>
English only on xda please!
Translation added:
Well I tried to hard reset an Android device exactly the NOKIA 2.2 TA 1179 model launched in my country Colombia in the same year 2019 second semester. but it does not work.
I have tried with volume + and power and it only reboots and reboots the device
with volume- and power and the device enters fastboot mode
with both volume and power and it only vibrates but neither turns on nor shows the green recovery android
I really don't know what other methods to try is a device that has the volume + keys and less than the power and google asistant
I would be very grateful to you people of XDA DEVELOPERS if you could start adding content of this cell phone to your page since it does not appear in the list of devices that have
and if you could help me with how to make it hard reset or flash it since I already tried with OSTLA, SP, MAGICBOX THUNDER. and none of those methods allowed me to do anything on the phone except that in any video the model TA1179 comes out
What's more is ALMOST IMPOSSIBLE TO FIND THE STOCK ROM OF THIS DEVICE
I ASK YOU FOR HELP PLEASE !!!!!!
Bueno he intentado hacerle un hard reset a un dispositivo android exactamente el modelo NOKIA 2.2 TA 1179 lanzado en mi pais colombia en este mismo año 2019 segundo semestre. pero no funciona.
he tratado con volumen+ y power y solo se reinicia y se reinicia el dispositivo
con volumen- y power y el dispositivo entra en modo fastboot
con las dos de volumen y power y solo vibra pero ni enciende ni muestra el androide verde recovery
la verdad no se que otros metodos tratar es un dispositivo que cuenta con las teclas de volumen + y menos ademas de la de encendido (power) y la de google asistant
les agradeceria mucho a ustedes gente de XDA DEVELOPERS si pudieran comenzar a agregar contenido de este celular en su pagina ya que hasta el momento no sale en la lista de dispositivos que tienen
y si me pudieran ayudar con la forma de hacerle hard reset o flashearlo ya que ya intente con OSTLA, SP, MAGICBOX THUNDER. y ninun metodo de esos me permitio hacerle nada al telefono fuera de que en ningun video sale el modelo TA1179
es mas es CASI IMPOSIBLE HALLAR LA STOCK ROM DE ESTE DISPOSITIVO
LES PIDO AYUDA POR FAVOR!!!!!!
Click to expand...
Click to collapse
make sure usb debuging is on then plug ur device and type the following adb command: adb reboot recovery thn press enter and your in recovery mode
After looking around the internet for HOURS, and using @Androidian_1's info, this worked for me on a Nokia 2.2 with Android One:
-Boot into fastboot mode by:
1. Turn off
2. Press ON button and VOLUME DOWN at the same time
3. It will boot into a mostly black screen that says "FASTBOOT" at the bottom-left corner
- Connect to the PC and use fastboot app to reboot into recovery mode (green robot)
1. Get the Platform Tools for Android, which include fastboot: developer.android.com/studio/releases/platform-tools.html
2. Connect the device via USB (you should hear Windows chime when connected)
3. Test connectivity with: fastboot getvar version
4. Reboot into recovery with: fastboot reboot recovery
- Go into the recovery menu and run factory reset:
1. After the phone has booted into recovery mode it will show the green android robot with a warning
2. Press: SHORT/QUICK >>> POWER + VOLUME UP
3. You should see the recovery menu
4. Use VOLUME DOWN to select "Wipe data/factory reset"
5. Click POWER to select and accept
6. Reboot the phone (click POWER which selects 1st option for "Reboot now"
Hope this helps others!!
foobar1123321 said:
After looking around the internet for HOURS, and using @Androidian_1's info, this worked for me on a Nokia 2.2 with Android One:
-Boot into fastboot mode by:
1. Turn off
2. Press ON button and VOLUME DOWN at the same time
3. It will boot into a mostly black screen that says "FASTBOOT" at the bottom-left corner
- Connect to the PC and use fastboot app to reboot into recovery mode (green robot)
1. Get the Platform Tools for Android, which include fastboot: developer.android.com/studio/releases/platform-tools.html
2. Connect the device via USB (you should hear Windows chime when connected)
3. Test connectivity with: fastboot getvar version
4. Reboot into recovery with: fastboot reboot recovery
- Go into the recovery menu and run factory reset:
1. After the phone has booted into recovery mode it will show the green android robot with a warning
2. Press: SHORT/QUICK >>> POWER + VOLUME UP
3. You should see the recovery menu
4. Use VOLUME DOWN to select "Wipe data/factory reset"
5. Click POWER to select and accept
6. Reboot the phone (click POWER which selects 1st option for "Reboot now"
Hope this helps others!!
Click to expand...
Click to collapse
My computer cant recognize my nokia 2.2 . How did you install fastboot driver for nokia 2.2 ?
The way mine works is from power+voldown fastboot mode I can type: fastboot reboot recovery and once on that no command screen, just PRESSING power+volup gets into recovery.
conditae said:
The way mine works is from power+voldown fastboot mode I can type: fastboot reboot recovery and once on that no command screen, just PRESSING power+volup gets into recovery.
Click to expand...
Click to collapse
I swear that i knew it.
It is simple to go to Fastboot or recovery mode.
When i turn my phone to Fastboot and connect to my PC, Fastboot cant recognize it. I type fastboot device but there is no device . It is my problem
I installed my nokia 2.2 fastboot driver and my system accept that but fastboot cant recognize it.
Can you help me ?
Esemtix2003 said:
I swear that i knew it.
It is simple to go to Fastboot or recovery mode.
When i turn my phone to Fastboot and connect to my PC, Fastboot cant recognize it. I type fastboot device but there is no device . It is my problem
I installed my nokia 2.2 fastboot driver and my system accept that but fastboot cant recognize it.
Can you help me ?
Click to expand...
Click to collapse
Sorry for late reply, I'm retarded. There's a Telegram group, don't think I can link in here. It COULD be the driver, or Windows PC is just b0rked with config... even some new Xiaomi phone can't load driver on a newer machine, swamped (it does, but fastboot can't flash, nor MiFlash; strange things CAN happen). Also, it could be important to get the right driver, ugh. If I dig up a link, I'll try to edit here (but pls don't hold your breath, mental issues for real (not), LOL)

A51 bricked ?? Bootloader no way !!??

hello sorry for my english langage.....
ok i flashed my a51 with odin but maybe i make a mistake idont know, now when i make bootloader no bootloader come is write "entering fastboot" how to erase fastboot and go back bootloader for re-flash with odin thx a lot for your respones ...
You need to press the bixby and quiet button, when you plug the USB-C cable into the PC, then you come into Odin mode,
Sry for my bad English
mu1989 said:
You need to press the bixby and quiet button, when you plug the USB-C cable into the PC, then you come into Odin mode,
Sry for my bad English
Click to expand...
Click to collapse
merci pour ta reponse mais je suis bloqué en fastboot je nai plus acces au bootlaoder et jessais meme les command adb il veut pas sortir de ce mode...!! thx alot but no work bootloader et je nai pas de buton bixby !??
darknid1951 said:
merci pour ta reponse mais je suis bloqué en fastboot je nai plus acces au bootlaoder et jessais meme les command adb il veut pas sortir de ce mode...!! thx alot but no work bootloader et je nai pas de buton bixby !??
Click to expand...
Click to collapse
ok i make a solution i arived in download mode now; a push button volume up and volume down just no power on/offf, ok, and in the same time i plug usb-c connect and is go download mode is ok !! Good !! after i re-flash with ODIN in security patch android juin or july for samsung a51 after flash the button "samsung pass" is good i click on samsung pass i make this tutoriel youtube, i take a url private message if all peple want, because no possibility here now, sorry !
ok !! Now my samsung A51 is debloqued and is work fine 100% !! I am happy !! : ):bien: :bien:: cool: A tutoriel is very good !! and i take all people a another tuto good !! But remenber you make downgrad a samsung a51 in patch security July ou li*uin because with patch of 14/09/020 for me the button samsung pass no work !! bye !
darknid1951 said:
ok i make a solution i arived in download mode now; a push button volume up and volume down just no power on/offf, ok, and in the same time i plug usb-c connect and is go download mode is ok !! Good !! after i re-flash with ODIN in security patch android juin or july for samsung a51 after flash the button "samsung pass" is good i click on samsung pass i make this tutoriel youtube, i take a url private message if all peple want, because no possibility here now, sorry !
ok !! Now my samsung A51 is debloqued and is work fine 100% !! I am happy !! : ):bien: :bien:: cool: A tutoriel is very good !! and i take all people a another tuto good !! But remenber you make downgrad a samsung a51 in patch security July ou li*uin because with patch of 14/09/020 for me the button samsung pass no work !! bye !
Click to expand...
Click to collapse
can you send me the tutorial please
mohaibr said:
can you send me the tutorial please
Click to expand...
Click to collapse
Yes please!!!
mu1989 said:
You need to press the bixby and quiet button, when you plug the USB-C cable into the PC, then you come into Odin mode,
Sry for my bad English
Click to expand...
Click to collapse
Where is the Bixby button in A51 ?!?!

Question Poco X3 Pro Bootlooping

Hello
Recently my phone just started Bootlooping.
So far I have tried rebooting it, and trying to go into safe mode. But so far it is currently stuck rebooting itself. If I try to reboot to safe mode or factory settings it just boots up again. I tried the couple odd tricks on the forum like pressing the power button and similar but it’s not working.
en el mio paso algo similar y lo tuve que mandar a reparar y era un problema de soldadura en la memoria y procesador
Mod translation: something similar happened in mine and I had to send it to be repaired and it was a soldering problem in the memory and processor.

Samsung s8+ g955f help / ayuda

Help please, I had my cell phone without firmware and I couldn't install another rom, it asked me to do it with a smart switch, I couldn't either. I use an FRP Hijacker tool by hagard, and now it only shows the s8+ logo and turns off. I also don't try to enter dowload mode, it just leaves me with the logo, I try to connect it to the pc and it appears as if it is going to load but it restarts in an infinite loop and I can't do anything else. If someone could give me a solution to this please, I would greatly appreciate it. Thanks good night
Ayuda porfavor, tenia mi celular sin firmware y no podia instalar otra rom, me pedia hacerlo con smart swich tampoco pude. Uso una herramienta FRP Hijacker by hagard, y ahora solo sale logo del s8+ y se apaga. Intento tampoco entrar a modo dowload me deja solo sale logo, intento conectarlo a la pc y sale como si va a cargar pero se reinicia en un bucle infinito y no puedo hacer mas nada. Si alguien me podría dar solución a esto porfavor se lo agradecería infinitamente. Gracias buenas noches
Try th ese instructions
Getting into bootloader mode via the buttons depends on the device, but the universal method seems to be this:
Code:
Power device completely off, wait a minute or two
Hold both Volume + and - buttons, do NOT press Power
While holding Volume buttons, plug in USB cable connected to your PC
Device should start in download mode.
If you press Power, or connect the USB cable before holding the buttons, your device will just power on.

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