[SOLVED!] Hard Bricked 6T Help Pls - OnePlus 6T Questions & Answers

Hi internet,
I obviously need help. I accidently bricked my 6T again and it seems to be permenant. I tried to used the MSMdownloadtool but the tool can't detect the device. And the device is in a Qualcomm CrashDump Mode. It shows Attempted to kill init! exit code=0x0000000b do_exit. I got to go but is there a way to fix this.

You must post in Q/A not here
Tapatalké depuis mon OnePlus 6T Havoc OS avec FP !

What were u exactly trying to do while this happened ?

Extreme_Ninja2099 said:
Hi internet,
I obviously need help. I accidently bricked my 6T again and it seems to be permenant. I tried to used the MSMdownloadtool but the tool can't detect the device. And the device is in a Qualcomm CrashDump Mode. It shows Attempted to kill init! exit code=0x0000000b do_exit. I got to go but is there a way to fix this.
Click to expand...
Click to collapse
You can restore you device using fastboot rom. Search for oos 6t fastboot rom.. There are guides for installation.
P.S. It will give a whole bunch of error in the cmd during installation but don't interrupt the process as your device will be restored in the end

Use Mnm tool to fix your phone. It can fix hard brick devices and guidance is there how to use .
PS: this is not right place post next time post on Q/A section.

Hold all the buttons down till it shuts off, almost a full minute. Then get it to boot to fastboot, power off. Then start up msm, then while phone is unplugged and off, hold both vol buttons for a 4 count, then plug it in. Msm will day connected, hit start. Let it finish and reboot. that's all

Qualcomm crashdump is not the same as download mode, and will not work with MSM. You still need to put your device manually into download mode.

parker.stephens said:
Qualcomm crashdump is not the same as download mode, and will not work with MSM. You still need to put your device manually into download mode.
Click to expand...
Click to collapse
Hold down every button till it shuts off, then force reboot to bootloader, then select power off to make sure it's off. Then do as I instructed above to fix it. Sometimes u can just run a fastboot rom to fix it, or boot twrp and flash a rom. I do this multiple times a day sometimes.

fullofhell said:
Hold all the buttons down till it shuts off, almost a full minute. Then get it to boot to fastboot, power off. Then start up msm, then while phone is unplugged and off, hold both vol buttons for a 4 count, then plug it in. Msm will day connected, hit start. Let it finish and reboot. that's all
Click to expand...
Click to collapse
Thanks everyone who replied. The whole thing started when I tried to update my TWRP the wrong way and I got nothing better to do. I was on 3.2.3-1 and the newest on the website (TWRP) was 3.2.3-2, but I flashed the image instead, into vendor. This got me into the Qualcomm CrashDump Mode and it kept on rebooting to it as well. There was no way that I was be able to use the MSMDownload tool to recover my 6T as the tool couldn't detect my device as it was connected as Qualcomm HS-USB Diagnostics 900E not Qualcomm HS-USB QDloader 9008.
I pressed all the buttons and got into FASTBOOT mode! Then I booted TWRP, luckily all my stuff isn't corrupted and I did a Nandroid backup beforehand as well. So, I just restored my Nandroid backup and voila I got my 6T back. Thanks again everyone

Extreme_Ninja2099 said:
Thanks everyone who replied. The whole thing started when I tried to update my TWRP the wrong way and I got nothing better to do. I was on 3.2.3-1 and the newest on the website (TWRP) was 3.2.3-2, but I flashed the image instead, into vendor. This got me into the Qualcomm CrashDump Mode and it kept on rebooting to it as well. There was no way that I was be able to use the MSMDownload tool to recover my 6T as the tool couldn't detect my device as it was connected as Qualcomm HS-USB Diagnostics 900E not Qualcomm HS-USB QDloader 9008.
I pressed all the buttons and got into FASTBOOT mode! Then I booted TWRP, luckily all my stuff isn't corrupted and I did a Nandroid backup beforehand as well. So, I just restored my Nandroid backup and voila I got my 6T back. Thanks again everyone
Click to expand...
Click to collapse
Everybody, it's called the MSMDownload Tool. It cannot be used in Fastboot Mode or Qualcomm CrashDump Mode, it can only be used in EDL Mode (Emergency Download Mode).

I have onplus 6t international i reset my device now its stuck on fastboot mode locked i cant enable oem unlocked in devlopers because my 6t is stuck on fastboot what to do please help

CaptionNixx said:
I have onplus 6t international i reset my device now its stuck on fastboot mode locked i cant enable oem unlocked in devlopers because my 6t is stuck on fastboot what to do please help
Click to expand...
Click to collapse
Power off use msm. Done.

fullofhell said:
Power off use msm. Done.
Click to expand...
Click to collapse
I did that but its shows conected when i press start its work for 5s then its shows N/A in connection area

CaptionNixx said:
I did that but its shows conected when i press start its work for 5s then its shows N/A in connection area
Click to expand...
Click to collapse
If your using windows search for device manager to see what your device is being detected as. Try and reboot if your device isn't Qualcomm HS-USB QDloader 9008. Once it shows that try and update the driver, but you'll need to be a admin. Have you installed Oneplus USB Drivers?

Extreme_Ninja2099 said:
If your using windows search for device manager to see what your device is being detected as. Try and reboot if your device isn't Qualcomm HS-USB QDloader 9008. Once it shows that try and update the driver, but you'll need to be a admin. Have you installed Oneplus USB Drivers?
Click to expand...
Click to collapse
Yes i did that and driver is fully installed Qualcomm HS-USB QDloader 9008 and there is No yallow sigh in driver

Try closing the MSMDownload tool and opening it again. This happened to me when I used MSMDownload Tool and restarting made my device connected

Extreme_Ninja2099 said:
Try closing the MSMDownload tool and opening it again. This happened to me when I used MSMDownload Tool and restarting made my device connected
Click to expand...
Click to collapse
Thanks brother its done

Help I can not get in to fastboot mode. Im stuck in Crashdump mode. Even when i power off the phone holding powerbutton down for a while it will powerup again and the unlocked bootloader warning window with "press power key to pause boot" will not react to any presses.
Also booting and holding down power+down will result in the same and go to crashdump mode.
What do I do

Voldemort13 said:
Help I can not get in to fastboot mode. Im stuck in Crashdump mode. Even when i power off the phone holding powerbutton down for a while it will powerup again and the unlocked bootloader warning window with "press power key to pause boot" will not react to any presses.
Also booting and holding down power+down will result in the same and go to crashdump mode.
What do I do
Click to expand...
Click to collapse
did yoy got any solution

Related

[BRICKED!] Redmi 3S where can i identify test points and force into EDL mode?

ii just got my redmi 3s and i just bricked it. it does not boot up into any splash logo, recovery or download mode, just always stays on black screen until battery dies then it flashes red if i power on. now when i plug it in to the computer the only thing that pops up is Qualcomm HS-USB Diagnostics 900E which i dont need. i need qualcomm hs-usb qdloader 9008 but no tools detect the phone other then QFIL and even when i give it all the files it just says
Code:
Start Download
COM Port number:4
Switch To EDL
Download Fail:Failed to Switch to Emergency Download mode
Download Fail:Switch To EDL FailFireHose Fail
Finish Download
i have tried touching random copper points on the board but nothing reboots the phone into EDL.
Maybe
Found this, not sure if it's what you looking for,
http://en.miui.com/thread-286357-1-1.html
---------- Post added at 08:26 PM ---------- Previous post was at 08:16 PM ----------
Found this, not sure if it's what you looking for,
http://en.miui.com/thread-286357-1-1.html
Better idea is search Ali express for "deep flash cable xiaomi"
jazz452 said:
Found this, not sure if it's what you looking for,
http://en.miui.com/thread-286357-1-1.html
---------- Post added at 08:26 PM ---------- Previous post was at 08:16 PM ----------
Found this, not sure if it's what you looking for,
http://en.miui.com/thread-286357-1-1.html
Better idea is search Ali express for "deep flash cable xiaomi"
Click to expand...
Click to collapse
wow thats very interesting, ill try to buy one.
been reading on it for a bit. think this can really work?
or you can purchase something called a jig i hope i spelled it properly from ebay or amazon it shorts the usb testpoints and puts your phone into edl or fastboot mode
xdarkmario said:
wow thats very interesting, ill try to buy one.
been reading on it for a bit. think this can really work?
Click to expand...
Click to collapse
If the test points work the cable should, maybe the other cable will work, seems strange that they say to use to deep flash cable though, sure these people know about the jig cable so wouldn't chance it.
https://www.youtube.com/watch?v=DJZ6Ka7mrIA
You can buy cable in UK
http://www.fonefunshop.co.uk/cable_picker/99673_Xiaomi_Deep_Flash_Cable.html
Even get a how to on the page.
You can also try this unbrick guide on MIUI forum.
http://en.miui.com/thread-327861-1-1.html
He can't get to recovery.
xdarkmario said:
ii just got my redmi 3s and i just bricked it. it does not boot up into any splash logo, recovery or download mode, just always stays on black screen until battery dies then it flashes red if i power on. now when i plug it in to the computer the only thing that pops up is Qualcomm HS-USB Diagnostics 900E which i dont need. i need qualcomm hs-usb qdloader 9008 but no tools detect the phone other then QFIL and even when i give it all the files it just says
Code:
Start Download
COM Port number:4
Switch To EDL
Download Fail:Failed to Switch to Emergency Download mode
Download Fail:Switch To EDL FailFireHose Fail
Finish Download
i have tried touching random copper points on the board but nothing reboots the phone into EDL.
Click to expand...
Click to collapse
try this
Boot into fastboot mode and connect your phone to pc
open command window and type fastboot oem edl
It worked for me
Kanth's said:
try this
Boot into fastboot mode and connect your phone to pc
open command window and type fastboot oem edl
It worked for me
Click to expand...
Click to collapse
again, still cant do that. I cant do anything. I brought the cable a couple of days ago so when it gets here ill try it, if not then ill send it to warranty repair
xdarkmario said:
again, still cant do that. I cant do anything. I brought the cable a couple of days ago so when it gets here ill try it, if not then ill send it to warranty repair
Click to expand...
Click to collapse
Is it hardbricked?
Kanth's said:
Is it hardbricked?
Click to expand...
Click to collapse
yes i assume hitting power immediately puts it into Qualcomm HS-USB Diagnostics 900E mode, no screens no lights
xdarkmario said:
yes i assume hitting power immediately puts it into Qualcomm HS-USB Diagnostics 900E mode, no screens no lights
Click to expand...
Click to collapse
Take a look at this one - http://xiaomitips.com/guide/how-to-fix-bricked-redmi-3s-on-miui-7-8/
Kanth's said:
Take a look at this one - http://xiaomitips.com/guide/how-to-fix-bricked-redmi-3s-on-miui-7-8/
Click to expand...
Click to collapse
of course i have tried this before.
Please bear in mind that the method of reflashing Android ROM can only works fixing soft-bricked devices and NOT for hard-bricked ones.
Click to expand...
Click to collapse
I softbricked my redmi 3s as well, because I disabled some google apps.
Needless to say, you have to:
1. manually update/install qualcomm driver (when your phone in download mode).
2. download a fastboot rom
3. download miphone miflash tool, enable "flash all" option when you flash the fastboot rom.
there's a thread here on xda as well. search for bricked redmi 3 workaround.
do you want to enter download mode?
pressing vol up + vol down at once (Off position), and put in the USB cable
If the phone is on turn off 1st and imediatelly put in USB cable while, press vol up+ vol down
can you enter to fastboot?
I have same problem on my Redmi 3 Pro. No fastboot, No booting, No blink red light, No Charging, but if my device plug on pc it detected QC bla.. bla.. on port device manager. I don't know what to do anymore. *hopeless* *tearr* :crying:
the only way for hard brick is test points or deep flash cable, end of, I would go with cable less chance of breaking something while taking phone apart. If the phone is detected then it's only semi hard brick and can be fixed with Mi flash tool.
http://en.miui.com/thread-235865-1-1.html
http://en.miui.com/thread-254606-1-1.html
might be better.
but remeber to download the rom for your device.
xdarkmario said:
ii just got my redmi 3s and i just bricked it. it does not boot up into any splash logo, recovery or download mode, just always stays on black screen until battery dies then it flashes red if i power on. now when i plug it in to the computer the only thing that pops up is Qualcomm HS-USB Diagnostics 900E which i dont need. i need qualcomm hs-usb qdloader 9008 but no tools detect the phone other then QFIL and even when i give it all the files it just says
Code:
Start Download
COM Port number:4
Switch To EDL
Download Fail:Failed to Switch to Emergency Download mode
Download Fail:Switch To EDL FailFireHose Fail
Finish Download
i have tried touching random copper points on the board but nothing reboots the phone into EDL.
Click to expand...
Click to collapse
What did you do to brick it? Please tell us so that new users don't face the same problem as you
Ptmaroct said:
What did you do to brick it? Please tell us so that new users don't face the same problem as you
Click to expand...
Click to collapse
That's a good valid point

New method to unstuck on EDL mode with Qualcomm HS-USB Diagnostics 900E

Well, today, I flash a wrong firmware on my RN3 pro RR 5.8.3, unlock unofficially and get brick. No fastboot, No recovery, long press power button only brought splash screen for a second then screen goes black again. When stick to PC only red led blinking, on Device manager show Qualcomm HS-USB Diagnostics 900E so no Miflash.
Okay after a whole morning, I found this method here http://en.miui.com/forum.php?mod=viewthread&tid=266598&highlight=900e.. I tried method 3 from that thread because the other are just unreadable. So here is the step:
1. Plug the phone to PC - Red led blinking
2. Hold both 3 button: Volume up, Volume Down, Power button for around 10s. Phone vibrate and show the Linux Penguin Icon (Qualcom mode)
3. Check in Device manager/Port , it show other (unfortunately not the 9008 as in the thread). I check with Miflash Phone is recognize but i Cant flash any thing
4. SO i tried using this method here (step 4 ) https://forum.xda-developers.com/showpost.php?p=69613342&postcount=3 and get into EDL mode with 9008 port. Voila!
Optional
5. Then I flash this TWRP and unlock officially from here https://forum.xda-developers.com/redmi-note-3/how-to/unlock-unofficially-install-zcx-twrp-t3586778 and the beast is up again ! :highfive:
So i post this here to help anyone stuck in EDL mode and dont have a DFC or dont want to use test point method.
hope this help .
Thanks for sharing.
I already have deep flash cable (btw I made it myself, it is easy) and I have used it some times... But it is good if u don't have the cable!!
Regards!
Thanks a lot for this small post, it saved me from throwing this phone out of the window.
I could update MIUI using fastboot EDL, weirdely enough you cannot update official MIUI without unlocking the bootloader... WTF xiaomi
Saved my ass man thank you i got a real headache from all the failed attempts but u did the job.
my Redmi 4 no response. wat I do now.
when I connect usb cable to phone to pc it's show direct edl mode or Qualcomm Snapdragon 9008 is connected in port .
so what happened it?
wat I do now pls help me.

Chinese Axon 7 is not seen in ADB or MiFlash..Bricked??

After installing twrp on my chinese axon 7 latest B16 I rebooted accidentally and now my phone gets stuck on the the ZTE logo.
I cant enter recovery as when I press volume up + power, it reboots a couple of times with the zte logo and nothing else.
Also when entering EDL mode the only thing my PC is showing in device manager is "Handset Diagnostic Interface(DFU) (COM6)". Before it was showing as "Qualcomm HS-USB QDLoader 9008" but no more, even after multiple reboots and installing the qualcomm drivers again.
Before when running "adb devices" in the CLI I would see my device but now nothing. and running adb reboot edl shows error: no devices/emulators found.
Also tried MiFlash but when I hit refresh I dont even see COM in the list, its just blank.
Does anyone have any suggestions?
as I tried the below guide but get stuck as my device is never picked up by ADB or MiFlash
https://forum.xda-developers.com/axon-7/development/edl-emergency-dl-mode-twrp-unlock-t3553514
cozzysa said:
After installing twrp on my chinese axon 7 latest B16 I rebooted accidentally and now my phone gets stuck on the the ZTE logo.
I cant enter recovery as when I press volume up + power, it reboots a couple of times with the zte logo and nothing else.
Also when entering EDL mode the only thing my PC is showing in device manager is "Handset Diagnostic Interface(DFU) (COM6)". Before it was showing as "Qualcomm HS-USB QDLoader 9008" but no more, even after multiple reboots and installing the qualcomm drivers again.
Before when running "adb devices" in the CLI I would see my device but now nothing. and running adb reboot edl shows error: no devices/emulators found.
Also tried MiFlash but when I hit refresh I dont even see COM in the list, its just blank.
Does anyone have any suggestions?
as I tried the below guide but get stuck as my device is never picked up by ADB or MiFlash
https://forum.xda-developers.com/axon-7/development/edl-emergency-dl-mode-twrp-unlock-t3553514
Click to expand...
Click to collapse
Yeah, DFU brick. You basically need to follow the 4th category brick repair guide. Good luck
Choose an username... said:
Yeah, DFU brick. You basically need to follow the 4th category brick repair guide. Good luck
Click to expand...
Click to collapse
wow damn..I found this guide: https://forum.xda-developers.com/axon-7/how-to/a2017-4th-category-brick-repair-manual-t3585898
But I see it involves me opening the device which I am trying to avoid as a last resort.
I just sent the seller from Ali-express to see if they will replace it.
Never actually told them that I was tinkering with it.
Fingers crossed on the reply, will update the thread once I receive a reply.
cozzysa said:
wow damn..I found this guide: https://forum.xda-developers.com/axon-7/how-to/a2017-4th-category-brick-repair-manual-t3585898
But I see it involves me opening the device which I am trying to avoid as a last resort.
I just sent the seller from Ali-express to see if they will replace it.
Never actually told them that I was tinkering with it.
Fingers crossed on the reply, will update the thread once I receive a reply.
Click to expand...
Click to collapse
well that's the other way lol
I had to follow the guide, and it fixed my phone, so be assured that you can fix it if they send it back
It seems I got really luck as putting my phone in Factory test mode made device manager finally show "Qualcomm HS-USB QDLoader 9008" which I was then led MiFlash in detecting it.
I was then able to flash Stock B13 and from there unlock the bootloader, flash twrp and root.
cozzysa said:
It seems I got really luck as putting my phone in Factory test mode made device manager finally show "Qualcomm HS-USB QDLoader 9008" which I was then led MiFlash in detecting it.
I was then able to flash Stock B13 and from there unlock the bootloader, flash twrp and root.
Click to expand...
Click to collapse
Usually you can't enter Factory Test Mode when on a DFU brick. The known procedure to do that is to discharge the phone, then put it into FTM somehow and then using ADB to get to EDL. It's really weird that you've been able to pull that off that way
Could you tell us how you got into FTM? Just by vol down and power? It would be a nice addition to the brick guide, before attempting to take the phone apart
Yeah, it was just by power + volume down.

[solved]Bricked my OP6t on A11 while tinkering, stuck in boot loop (?hard bricked), windows 7 doesn’t detect Device as Qualcomm device

I was on A11.1.1.1 , when I decided to root my device. Tried to install Twrp but failed, then unlocked boot loader and flashed magisk using Adb from my windows 7 desktop. Phone restarted, went into bootloop, then restarted naturally - however I couldn’t turn on Wi-Fi. Downloaded SuperSU, which showed device was rooted. In an attempt to revert back to stock os, I flashed another boot image, and phone went into continuous boot loop. So I searched the web and downloaded Qualcomm hs-usb QDloader 9008, and MsmDownload tool v 4.0 in an attemp to unbrick my device and installed them. However, my desktop doesn’t recognise my phone as Qhusb_bulk or as Qualcomm qhusb qdloader9008 in devicemanager. So I m unable to use the MSM tool to un brick my phone. Tried reinstalling the drivers on desktop , but the phone doesnt show up on device manager still. Only shows up as “pci simple communications controller” under other devices.
When i turn on my phone, it shows the OP logo going round and round for 5mins, then the screen goes blank. If I keep the power off button pressed for quite sometime, phone restarts into boot loop again. Can’t get into boot loader, nor does adb on my desktop recognise the device.
i m at my wits end as to how I m gonna unbrick my phone, as this is my primary phone. Kindly guide me step by step as to how to unbrick my OP6t. Any help is appreciated.
Jeet77 said:
I was on A11.1.1.1 , when I decided to root my device. Tried to install Twrp but failed, then unlocked boot loader and flashed magisk using Adb from my windows 7 desktop. Phone restarted, went into bootloop, then restarted naturally - however I couldn’t turn on Wi-Fi. Downloaded SuperSU, which showed device was rooted. In an attempt to revert back to stock os, I flashed another boot image, and phone went into continuous boot loop. So I searched the web and downloaded Qualcomm hs-usb QDloader 9008, and MsmDownload tool v 4.0 in an attemp to unbrick my device and installed them. However, my desktop doesn’t recognise my phone as Qhusb_bulk or as Qualcomm qhusb qdloader9008 in devicemanager. So I m unable to use the MSM tool to un brick my phone. Tried reinstalling the drivers on desktop , but the phone doesnt show up on device manager still. Only shows up as “pci simple communications controller” under other devices.
When i turn on my phone, it shows the OP logo going round and round for 5mins, then the screen goes blank. If I keep the power off button pressed for quite sometime, phone restarts into boot loop again. Can’t get into boot loader, nor does adb on my desktop recognise the device.
i m at my wits end as to how I m gonna unbrick my phone, as this is my primary phone. Kindly guide me step by step as to how to unbrick my OP6t. Any help is appreciated.
Click to expand...
Click to collapse
When you get it to reboot did you try holding volume down as it starts? Should get you into recovery then bootloader.
Also get magisk to root rather than SuperSU. You can install twrp from magisk in oos with the correct installer but first you have to root correctly with modded boot.img. Can make your own or get from the one post in here. I'd suggest getting the newest oos also.
Brettroth said:
When you get it to reboot did you try holding volume down as it starts? Should get you into recovery then bootloader.
Click to expand...
Click to collapse
Probably need to flash a stock boot of 11.1.1.1 to unbrick. You can try booting to the newest twrp from fastboot I'm not sure if it works anymore.
Brettroth said:
Probably need to flash a stock boot of 11.1.1.1 to unbrick. You can try booting to the newest twrp from fastboot I'm not sure if it works anymore.
Click to expand...
Click to collapse
Couldn’t fastboot into twrp, since device got corrupted while trying to flash multiple things. Thankfully while tinkering, my desktop recognised my device as qhusb qloader 9008, and all I had to do was boot my device into edl mode (which was also a pain tbh!). After trying numerous key combinations and timing it perfectly, device booted into edl and I could use the msm download tool to unbrick my device. Now device has rebooted into iOS 10.3.5 (same version as msm tool version) and I have somehow breathed a huge sigh of relief that my device could be resuscitated. Will be updating to 11.1.1.1 now (I see the latest is 11.1.2.2) and setting up my device now.
Thank you a lot for looking into my issue and suggesting solutions. In my younger years, I was a technology enthusiast and often rooted/flashed, but have pursued medicine since then. Now am out of touch completely to the tech scene and it was a grave blunder on my part to have used my primary driver to try and root/flash again.
Have a great day, my friend and please know that it means a lot to me to have received help from the community.
Jeet77 said:
I was on A11.1.1.1 , when I decided to root my device. Tried to install Twrp but failed, then unlocked boot loader and flashed magisk using Adb from my windows 7 desktop. Phone restarted, went into bootloop, then restarted naturally - however I couldn’t turn on Wi-Fi. Downloaded SuperSU, which showed device was rooted. In an attempt to revert back to stock os, I flashed another boot image, and phone went into continuous boot loop. So I searched the web and downloaded Qualcomm hs-usb QDloader 9008, and MsmDownload tool v 4.0 in an attemp to unbrick my device and installed them. However, my desktop doesn’t recognise my phone as Qhusb_bulk or as Qualcomm qhusb qdloader9008 in devicemanager. So I m unable to use the MSM tool to un brick my phone. Tried reinstalling the drivers on desktop , but the phone doesnt show up on device manager still. Only shows up as “pci simple communications controller” under other devices.
When i turn on my phone, it shows the OP logo going round and round for 5mins, then the screen goes blank. If I keep the power off button pressed for quite sometime, phone restarts into boot loop again. Can’t get into boot loader, nor does adb on my desktop recognise the device.
i m at my wits end as to how I m gonna unbrick my phone, as this is my primary phone. Kindly guide me step by step as to how to unbrick my OP6t. Any help is appreciated.
Click to expand...
Click to collapse
This happen to me several times and the first time it happened I thought my phone would not be unbricked after numerous attempts with the msm tool!
My issue was that my phone was a renewed amazon phone and amazon listed it as a unlocked international but it actually was a t-mobile variant and when i downloaded the correct msm tool with firmware it worked!
You need to get the phone into edl mode. For edl, when phone off press both volume buttons and plug in the usb while connected to your pc and the qualcom driver should pop up in device manager. After that finding the right msm firmware will be your next issue but with enough searching you should find it!
Let me know your progress with the driver and I can try and post some links to different msm firmware for the oneplus 6t!

[Help] oneplus 8 pro, OEM Locked, Bootloop

Hello, I was going through stage to unlock bootloader, it was previously unlocked but a flashing error caused me to flash stock through MSMTool, I forgot to close/stop the tool after it was complete and upon one of the reboots it started the install again.. without realizing I attempted to boot the phone which caused the download to stop incomplete and booting to screen “upgrade download failed” I did select OEM unlocking in developer options as well as usb debugging although now it will not unlock bootloader; I can boot to bootloader not recovery and attempting to hold volume buttons while plugging into pc just pushing it to boot into the same fail screen. Is it possible to get my device into EDL mode so MSMTool can restart the install for stock? Thank you for any time given to help explain or direct.
Apologies if this is in the wrong thread
Ezzell said:
Hello, I was going through stage to unlock bootloader, it was previously unlocked but a flashing error caused me to flash stock through MSMTool, I forgot to close/stop the tool after it was complete and upon one of the reboots it started the install again.. without realizing I attempted to boot the phone which caused the download to stop incomplete and booting to screen “upgrade download failed” I did select OEM unlocking in developer options as well as usb debugging although now it will not unlock bootloader; I can boot to bootloader not recovery and attempting to hold volume buttons while plugging into pc just pushing it to boot into the same fail screen. Is it possible to get my device into EDL mode so MSMTool can restart the install for stock? Thank you for any time given to help explain or direct.
Apologies if this is in the wrong thread
Click to expand...
Click to collapse
Try using the MSM tool already started and the hold down VU/VD/Power until MSM grabs it.
HolyHog said:
Try using the MSM tool already started and the hold down VU/VD/Power until MSM grabs it.
Click to expand...
Click to collapse
This just boots to bootloader, from power off, any other combination instantly boots to same error page
Ezzell said:
This just boots to bootloader, from power off, any other combination instantly boots to same error page
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It doesn't really matter what it does if you have it hooked up to your computer and have MSM turned on with start button. It can find your phone in a between mode and start installing. It works for me every time, just hit all 3 buttons from wherever you are as long as MSM is in the start mode, it will find it and start installing.
HolyHog said:
It doesn't really matter what it does if you have it hooked up to your computer and have MSM turned on with start button. It can find your phone in a between mode and start installing. It works for me every time, just hit all 3 buttons from wherever you are as long as MSM is in the start mode, it will find it and start installing.
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It doesn’t seem to recognize the device at all in MSM only in bootloader I get fastboot devices command response and all in one tool recognizes it but says fail due to missing flash all zip or bat thanks for the advise though
Ezzell said:
It doesn’t seem to recognize the device at all in MSM only in bootloader I get fastboot devices command response and all in one tool recognizes it but says fail due to missing flash all zip or bat thanks for the advise though
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If MSM does not recognize your phone there is something wrong with your PC.
Make sure that you read the full post:
[OP8PRO][OOS 11AA/BA/DA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
Use another USB Port and/ or another USB cable.
Dont use Windows11
Install latest Universal ADB Driver
Install latest Qualcomm Drivers
Install latest OnePlus drivers.
In fact the last thing that will NOT work is MSM. If MSM does not work your phone is completly dead. (Which yours is obviously not because it boots into bootloader) This means if MSM does not work, there is something wrong on your end.
Talking about dead devices, be etremly careful what you do in Fastboot mode!
[GUIDE] How to Avoid Killing Your OnePlus 8 Pro / 8T / 9R with OxygenOS 12 / ColorOS 12
As You can see, recently we started seeing more and more threads complaining about OxygenOS 12 killing people's devices. I lost my 8 Pro the same way few months ago and we finally know what caused this! ANSWER - THE BOOTLOADER! Massive Update...
forum.xda-developers.com
Anything you do in the OS, like allowing OEM unlocking has **nothing** to do with MSM. In fact, a MSM flash will relock the bootloader. You will have to unlock again if you want to run anything except stock.
You have to boot the phone into EDL mode. Start MSM, then while holding the volume bar down, (UP and down, the entire button) plug into usb. Dont use the power button. (You may let volume keys go once done) There will be a dark screen, the only way to tell if in EDL mode is to check your device manager for the correct device. If you see anything on the screen you are not in EDL mode. I did use USB 2.0, do not use a hub.
I ask to start MSM first because on my Oneplus8, the EDL mode wont stay active for too long, unless MSM finds the phone.
If that does not work, put the phone into EDL mode and check your device manager (ports COM anf LPT) for QDLOADER 9008. Anything else, and the driver is not installed correctly and MSM won't work, If adb is working you can issue "adb reboot download" but the button press seems more applicable in your case.
There is a lot in the link below, it is for A10, I believe there is now a MSM for A11 but I have no experience with them.
https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4084953/
I have tried all these and msm will not recognize the device in any state so Iv reverted to using a repair shop msm was successful in making the device stock the problem came from rebooting the device while msm was still connected and running. Pressing any button would lead to the download failed screen where the device is not recognized or into bootloader where oem is locked and even though before boot I checked unlocking enabled the fastboot command would not unlock the bootloader, if the store fix it I will try get details on what they did

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