yashsingh1/xdaforums huggingface dataset:
[OnePlus 8T Guides, News, & Discussion] Fif_:
You may not need MSM at all, as long as you can get into fastboot, and you're unlocked:

https://xdaforums.com/t/oneplus-8t-rom-ota-oxygen-os-repo-of-oxygen-os-builds.4193183/post-85466569

https://xdaforums.com/t/oneplus-8t-rom-ota-oxygen-os-repo-of-oxygen-os-builds.4193183/post-85543497
[OnePlus 8T Guides, News, & Discussion] sniper_rifle:
Thank you so much. I had been going through a panic attack for the past few hours already, but you actually managed to bring this phone back to life. I really do congratulate you, thank you!
[OnePlus 8T Guides, News, & Discussion] GraveDigger176:
You're welcome 👍🏿👍🏿 good to read you get your phone back on track 👍🏿
[OnePlus 8T Guides, News, & Discussion] frankthetank5421:
Wow guys, I am beside myself, I really seem to have bricked my phone entirely.. any help appreciated. KB2005, unlocked bootloader, was rooted and tried to do an OTA but it failed, eventually got stuck in a bootloop to where I could only get into recovery. I tried to flash the original boot.img but i was still stuck in only recovery.

I tried to use the MSM tool in this thread to restore, and ever since I connected the phone to the PC in EDL mode by holding the volume buttons down and connecting the cable, I can't ge the phone to do anything. It doesn't seem like the MSM tool recognizes it, I keep getting "automaticc detection of DDR failed." The phone shows up in device manager Qualcomm HS-USB QDLoader 9008 (COM4)

I am freaking out, I think I really screwed up. Please, if anyone could help, it would mean the world to me.

Edit: NVM, I jumped the gun, I guess it was stuck in some mode other than EDL, I eventually got it to be responsive and got it into EDL proper. Appears to have worked, thank you so much for this guide OP.
[OnePlus 8T Guides, News, & Discussion] Iosif96:
can somewone help throw teamwiver, im totally lost, i tried allmost everything........ op 8t 12+256
[OnePlus 8T Guides, News, & Discussion] allenjthomsen:
anyone with a OnePlus 8T EU Varient that can get me param.bin i would like to try something on my phone to see what happens.
[OnePlus 8T Guides, News, & Discussion] Dark_Eyes:
any ideas?
[OnePlus 8T Guides, News, & Discussion] presentlyroyal:
How does MSM work with the A/B partition that the 8T uses? Can I get it so that I can boot off both partitions?

I fixed a soft-brick earlier with the global MSM version after switching to my B partition (A wouldn't work). As I understand, an OTA update should fix my A partition but when I performed the update and swapped back to partition A, I got the qualcomm crashdump error again. Perhaps I have a fundamental misunderstanding of how the partitions work. Can anyone help?
[OnePlus 8T Guides, News, & Discussion] Fif_:
MSM will overwrite the entire device. Both A and B partitions will be overwritten.
[OnePlus 8T Guides, News, & Discussion] presentlyroyal:
So the A/B partition is replaced with a single partition? Do you know if there's a way to restore it? My apologies if these questions seem inane, I appreciate your reply :)

Edit: I guess what I'm confused about is why I can't boot from the "other" partition after switching. I've read about others switching partitions via fastboot after an update failed, am I missing a step?
[OnePlus 8T Guides, News, & Discussion] BillGoss:
The only time you can boot from either slot (based on what I've done) is if both slots are running the same firmware and software version.

Since OTAs update the inactive partition, you'll not be able to boot the current slot after you've booted the updated system.

Note that the system, system_ext, vendor, product, and odm are virtual partitions (they are all created dynamically in the super partition) and there's only enough space in super to hold one complete set of these partitions, not one set for each slot.

It helps to remember that the A/B setup is to allow seamless updates, not hold two versions of the OS.
[OnePlus 8T Guides, News, & Discussion] 49thJedi:
Is it possible to delete EDL mode through, being honest, reckless rushing/idiocy? Tried a full battery kill, tried to plug+vol buttons dozens of times. 8P just jumps immediately into FB mode.
[OnePlus 8T Guides, News, & Discussion] Mcordcc:
That's what's happening to me too. Im trying EDL, i looked for commands to enter through fastboot, using TWRP, the key combos, but they don't do nothing. At least I got COM4 recognized in MSM but I can't seem to bring my phone back to life. I tried updating the firmware with the packages through TWRP but can't. Also tried to just flash another rom but I still get sent back to fastboot. I'm tired, I don't really know how my phone got to this.
[OnePlus 8T Guides, News, & Discussion] Mcordcc:
Also, the bootloader menu doesn't show baseband and bootloader version, and in TWRP it just says "unknown".
[OnePlus 8T Guides, News, & Discussion] Fif_:
Did you try reflashing with fastboot:

https://xdaforums.com/t/oneplus-8t-rom-ota-oxygen-os-repo-of-oxygen-os-builds.4193183/post-85466569

https://xdaforums.com/t/oneplus-8t-rom-ota-oxygen-os-repo-of-oxygen-os-builds.4193183/post-85543497

Please read both both in full before starting anything.
[OnePlus 8T Guides, News, & Discussion] Mcordcc:
Yes, that's what started my problem. I don't know if maybe I did it wrong or something. When I dump the payload there are a lot more images than usual, and I tried flashing them. Apparently it worked but my phone restarted into fastboot and never really installed OOS correctly. Maybe I did it wrong, since I only found one guide, and there were fastboot commands lacking in that guide.
[OnePlus 8T Guides, News, & Discussion] Fif_:
Odd. Any errors or messages during running the commands? Did you check out the second post that modified these instructions?
[OnePlus 8T Guides, News, & Discussion] Mcordcc:
I'm going to check the second one. The first one I did but the second one didn't. If it's successful I'll let you know. Thanks!
[OnePlus 8T Guides, News, & Discussion] Amr Fathii:
Great, but how to get back to OOS after successfully flashing H2O? My phoe is KB2000, however, it had OOS preinstalled. So it is compatible.
[OnePlus 8T Guides, News, & Discussion] Rootk1t:
I suppose by flashing OOS Full OTA zip file via local update.
[OnePlus 8T Guides, News, & Discussion] Jhonny12345:
Hi, first sorry for my English,

I'm new...

I have bricked my OnePlus 8T with MSM tool, I have lunch the tool with bootloader locked, MSM see my OnePlus and finish the the download of file but every time reboot in Qualcomm crashdump mode... When I push contemporary vol+ vol- e on/off the phone go to bootloader mode but when try to flash manually all file (recovery.img boot.img and other) I obtain " Flashing is not allowed in lock state) I thing depends on locked bootloader... Please help me I don't have any resources for unbrick... Thanks 🙏
[OnePlus 8T Guides, News, & Discussion] Wishmasterflo:
It is mentioned under "Why is my device getting in Qualcomm crashdump mode in spite of a successful download?" You have to use the H2OS MSMtool for your device. Newer manufactured devices cant use the OOS MSMtool anymore.
[OnePlus 8T Guides, News, & Discussion] wojtasx93:
I can't see download links
[OnePlus 8T Guides, News, & Discussion] Some_Random_Username:
You need to open spoilers https://xdaforums.com/t/op8t-oos-kb...your-device-to-oxygenos.4180837/post-85637373
[OnePlus 8T Guides, News, & Discussion] phabet:
my 8t wont stay in edl mode, it reboots after 30-45 sec. dont have enough time to install qualcomm drivers, phone stays recognized as qusb_bulk. any idea?
[OnePlus 8T Guides, News, & Discussion] enkidu70:
Hi all,

I got the hint, this thread could help me. I am on Linux, so using Msm tool would be a hard issue. :)

But anyway, maybe I could fix my problem in a different way, because I only have a boot problem on one slot.

Take a look here, if you might want to help me:

https://xdaforums.com/t/bootloader-...d-slot-qualcomm-crashdump-0x00007f00.4364769/

Tnx in advance.
[OnePlus 8T Guides, News, & Discussion] neolito:
Great post,very precise and essential thingr ender the correct driver.

As well as the fact that it is good to restart and change the Windows driver, go through the bootloader, then turn off the phone again.
[OnePlus 8T Guides, News, & Discussion] Svid:
No.

EDL is part of the PBL and it's a code on the SoC (PBL = Bootrom on iDevices and EDL is like DFU Mode).
[OnePlus 8T Guides, News, & Discussion] null0seven:
Thank you, Some_Random_Username

I use the MSM tool to reset OnePlus 9 Pro. My phone was Locked/UnRooted.

I use the tool with Windows 11 x64 , Usb 3.0. My laptop does not have usb 2.0.

I was nervous about it, but it worked fine. When you got "QDLOADER 9008" in Device Manager you are good to go.

Follow the steps in OP and enjoy your phone.
[OnePlus 8T Guides, News, & Discussion] Mrsaif:
It worked for me, bro!! I was having the same crash dump issue when I tried OOS MSM tool. H2OS fixed it. Thanks to you brothermen!!
[OnePlus 8T Guides, News, & Discussion] Ejvyas:
How did you fix it ? I am facing similar issue. New device just SIM and BL unlocked and trying to use MSMTools for the first time and it returns "Automatic Detection of DDR failed"
[OnePlus 8T Guides, News, & Discussion] Schum:
It helped me too.

Thanks Wishmasterflo and Some_Random_Username!

I hade the same situation with the Qualcomm CrashDump and after that "Flashing is not allowed in lock state"

But what did you do after that?

How do you go back to the OxygenOS?

--------

Update. I answer my own question.

Download the latest official OxygenOS OTA update. In my case 11.0.11.11.KB05AA

Software Upgrade - OnePlus.com

Get the latest OxygenOS updates for your device.OxygenOS is always evolving. Learn about the latest features and improvements, and get even more out of your device.

www.oneplus.com

Copy it to the phone and run system update / local update.

HydrogenOS will be replaced with the OxygenOS.

Wow, what a relief!
[OnePlus 8T Guides, News, & Discussion] Jagarm:
I had to follow this instructions today to unbrick my phone as I was only seeing "Your device is corrupt. It can't be trusted and will not boot" and it would power off then back on and repeat.

I had to disable the Driver Signature Enforcement on my Windows 10 machine and you can visit here to do that. After doing that, the driver was successfully installed in device manager.

After launching the MsmDownloadTool and showing the device connected, I got "automatic detection of ddr failed", to fix that, I had to unlock oem through fastboot. You can access fastboot by pressing volumne up/down and power, release as soon as you see fastboot on the screen.

I entered the following then followed the instructions on my phone screen

fastboot oem unlock

After booting back into EDL mode, the MSM worked like a charm.
[OnePlus 8T Guides, News, & Discussion] savio97:
Hi, can anyone help me on how to repair the bricked status of my One plus 8T. i had installed lineage OS without rooting(I tried to root but i dont think it was rooted). I was trying to go back to original but it was hard bricked and is now stuck in bootloop. I have tried every solution in the interenet its not working can anyone help me on this.. And try to choose the correct MSM tool. While i was trying MSM tool the device is not shown there in the USB section. Please please help me anyone solve this. Mine is the Indian Version
[OnePlus 8T Guides, News, & Discussion] scorpio76r:
Have you tried using a different cord or a different port on your pc? Are you using windows 10?
[OnePlus 8T Guides, News, & Discussion] BillGoss:
I had something similar happen to me. The phone kept booting, screen went black, then reboot again and again. It was completely unresponsive to any buttons and wouldn't connect to the PC for MSM or ADB.

I ended up leaving it until the battery died. Then I put it on the charger for a few minutes and then rebooted into bootloader.

From there it was easy to fix things - I used TWRP to do that (my preference) but could just have easily used MSM Tool.
[OnePlus 8T Guides, News, & Discussion] savio97:
But the problem for me is that some times it loads into TWRP screen and sometimes nto fastboot mode. Is it possible to share the exact key combination you have tried and steps you followed in Twrp method
[OnePlus 8T Guides, News, & Discussion] BillGoss:
Google "OnePlus 8t key combinations" and then use any of the great guides in this forum, including this one we're in.
[OnePlus 8T Guides, News, & Discussion] savio97:
yes i have tried. I am on win 10
[OnePlus 8T Guides, News, & Discussion] savio97:
A

Also once in fastboot mode its not going into recovery mode it just restarts into fastboot itself
[OnePlus 8T Guides, News, & Discussion] GraveDigger176:
Have you installed the Qualmcomm drivers and your Device is listed as QDLOADER 9008 in Device Manager , which Modell is your 8T KB 2001, KB 2003 like mine is or KB 2000 or KB 2005 ?
[OnePlus 8T Guides, News, & Discussion] savio97:
Mine is KB 2001. I have installed QDLOADER 9008 manually many times after connecting some time the name goes to just "Android" in the device manager. Now the fastboot mode comes but after that we cannot go to any other option like recovery or power off it just restarts every time i push Power button(OK command) in the Bootloader
[OnePlus 8T Guides, News, & Discussion] savio97:
Yes i have tried that too
[OnePlus 8T Guides, News, & Discussion] domig725:
Hi guys, I'm currently stuck in Crashdump mode after trying to install stock firmware on both A/B partitions, before flashing Pixel Experience. MSM tool (OOS 11 version) continues to stop at param preload phase and gives the "param preload failed" error, driver are QDLoader 9008. My phone is a KB2000, I bought it in November 2020 and they sent it to me with OOS Global preinstalled. I would to know if I should use the H2OS MSM tool. Help me please, I need the phone !!! Thanks in advance.
[OnePlus 8T Guides, News, & Discussion] GraveDigger176:
The KB 2000 is the Chinese Modell right ? If yes I would try the H2OS that should work 👍🏿👍🏿
[OnePlus 8T Guides, News, & Discussion] domig725:
Yes it is the chines model (the seller just sent me the phone with the OOS installed, but the phone is chinese model).
[OnePlus 8T Guides, News, & Discussion] GraveDigger176:
Yeah then I would try the H2OS version of MSN Tool 👍🏿👍🏿
[OnePlus 8T Guides, News, & Discussion] GraveDigger176:
Driver signature disabled in Windows ? And maybe your Modell is build after March 2021 then you have to use a specific MSN Tool which is also listed here in this thread
[OnePlus 8T Guides, News, & Discussion] domig725:
I solved with OOS msm tool. I think that the problem was a wrong that the phone didn't enter edl mode correctly.
[OnePlus 8T Guides, News, & Discussion] shadowofdeth:
Tool doesn't seem to be kept upto date. Would it be safe to use the last release to downgrade and then just install oos update? No weird issues going straight from 11.0.7.10 o 11.0.11.11 right?

I'm on 11.0.12.12 right now but it broke some of the Magisk modules I use.
[OnePlus 8T Guides, News, & Discussion] BillGoss:
You can use TWRP to downgrade. Just flash 11.0.11.11, reboot into TWRP and format data because the encryption keys changed from .11 to .12.
[OnePlus 8T Guides, News, & Discussion] shadowofdeth:
Can I trouble you for the exact steps and how to keep root? Been years since I last had to deal with TWRP and had a few bad experiences.

What I'd assume from what I did in the past:

•Wipe cache/dalvik

•Flash OOS 11.0.11.11

•Reboot recovery

•Format

•Flash Magisk

•Reboot recovery

•Reboot system

Does that sound right?
[OnePlus 8T Guides, News, & Discussion] BillGoss:
Skip the wipe cache/dalvik

You'll have to sideload Magisk

Skip the reboot to recovery after Maggie
[OnePlus 8T Guides, News, & Discussion] savio97:
No mine was from Nov 2020
[OnePlus 8T Guides, News, & Discussion] GraveDigger176:
Then MSN Tool should work maybe you messed up with drivers or anything else, or the driver signature is not disable. I would deinstall all drivers and start from the scratch as it is introduced in this thread here 👍🏿
[OnePlus 8T Guides, News, & Discussion] dnsssm:
I love you all friendly, humble and generous people that share knowledge, tools, experience etc without getting a penny. I bought my OnePlus 9 Pro 2 days ago, and although Im quite experienced in unlocking BL:s, rooting, flashing custom roms, kernels, etc etc, I got really ****ed and was the closest to a hardbrick that couldnt possibly be solved in any way from home.

Thank you - Im so happy! Its alive and kicking!

All of you that spread your knowledge here at XDA are true heroes in my eyes and so heavily appreciated - almost cant express my gratitude in words right now.

Thanks guys, I really mean it. Take pride in what you do.
[OnePlus 8T Guides, News, & Discussion] StuckOnATree:
i unlocked my tmobile one plus 8t + unlocked bootloader and converted from Tmobile to global . However i recently wanted to sell the one plus 8t. if i msm back to tmobile do i need to sim unlock again or the phone is unlocked and good to go?
[OnePlus 8T Guides, News, & Discussion] marcsmv3:
When I run this tool I get 'Automatic detection of DDR failed'

I rebooted back to my previous flash using power+volume up for a few seconds. Not sure how to clean flash my phone now. Magisk is installed but not properly and not giving root access.
[OnePlus 8T Guides, News, & Discussion] Raza Qadri:
I am confused about one thing, I have KB2000 (Chinese Variant 8T) and it never goes into EDL mode when i use Volume + and - buttons.

What works for me is Volume + ,Volume - and Power button.

my question is that is there something wrong with my phone that it doesn't goes into EDL mode with volume + and volume - button like everyone else's phone uses?
[OnePlus 8T Guides, News, & Discussion] Fnzi:
Device isn't recognized in MSM tool and In device manager is just recognized under the USB as kb2003.I installed havock os on it and it is kind of buggy and I want to go back to oos .If you know any solution please tell me.
[OnePlus 8T Guides, News, & Discussion] Rootk1t:
Install TWRP and follow instructions in OP to flash stock OOS.
[OnePlus 8T Guides, News, & Discussion] rmroot:
When I have the phone powered off and I push both volumes than after 3-4 sec I put the usbc cable, nothing happens, my oneplus 8t doens't go in EDL mode. How can I do?
[OnePlus 8T Guides, News, & Discussion] scorpio76r:
Hold the volume up /down buttons at the same time then plug in the USB cable.
[OnePlus 8T Guides, News, & Discussion] phabet:
im using win 11 on a virtual machine (mac m1), but i cant make my op8t get recognized in edl mode, it alway shows as "bulk". already driver signification deactivated, installed qcom driver succesfully, tried manually install (says windows couldnt find drivers for your device) and no matter what i do, my phone shows always as bulk. besides it stays only for about 10 sec in edl mode, than reboots automatically. on my old mac with windows 10 it works. any experiencies and advices?
[OnePlus 8T Guides, News, & Discussion] BillGoss:
This won't help you get your driver fixed, but I've found that with TWRP I no longer need to use MSM because I can simply flash OOS full roms, flash the TWRP zip, reboot TWRP, format data, reboot system and all is good.

PM me if you want to discuss this.
[OnePlus 8T Guides, News, & Discussion] phabet:
the question is if twrp really does the same as mms tool? i know that option, also flashing oos in fastboot is possible, but somehow it isnt the same.
[OnePlus 8T Guides, News, & Discussion] phabet:
how do you copy oos rom to internal storage on a12? iirc you need to be on a11 first to be able to flash with twrp? so msm tool is actually unavoidable
[OnePlus 8T Guides, News, & Discussion] BillGoss:
Use Sideload if you're on encrypted A12.

You can flash (or boot) TWRP irrespective of the installed rom.
[OnePlus 8T Guides, News, & Discussion] phabet:
somehow twrp doesnt work for me. maybe cause im on mac. i used to use twrp and otg only until i got op8t, and at the beginning there was no twrp for it, so i had to learn to use fastboot and adb, now i love those, they work flawlessly on mac. with twrp copying files to device doesnt work at all, otg not working, and i install every 2-3 days new rom, but only with fastboot flash or adb sideload. guess ill stick with my old mac for msm.

but thank you anyway
[OnePlus 8T Guides, News, & Discussion] Chiranz:
Help!

So ive used the MSM tool, and the tool has flashed it successfully too. it also shows download complete, but my phone is still not booting into recovery or fastboot.
[OnePlus 8T Guides, News, & Discussion] Wisiwyg:
I realize this is an old post... To be clear, you used the MSM International tool to recover a KB2005? I need to do this, not sure which of the OP download versions I should use. TIA
[OnePlus 8T Guides, News, & Discussion] glowyemmanuel:
if anyone gets the "sahara" problem, do not unplug your phone: just hold volume up + power.

this explains it well:
[OnePlus 8T Guides, News, & Discussion] jcsww:
The device will remain SIM unlocked. Flashing with the MSM Tool does not alter the SIM lock state of the device.
[OnePlus 8T Guides, News, & Discussion] Wishmasterflo:
Today I successfully restored my Oneplus 8t after I got some weird issues with mounting data fails after I flashed a new custom ROM.

I had to disable secure Boot in the BIOS of my Computer to get the Oneplus Drivers installed correctly and recognized my Phone in EDL mode.

I used the H2OS MSMtool and when that was successfully done and booted I just flashed the latest EU OOS 10.11.12.12 via local upgrade.

Now the phone is working again and I have successfully flashed a custom ROM again.
[OnePlus 8T Guides, News, & Discussion] ccic2491:
*Edit: I'm an idiot and have figured it out 😁
[OnePlus 8T Guides, News, & Discussion] rfec:
This was working, however, when you press start in MSM, connect the phone after, THEN press and hold both vol buttons and power, let go of power after a few secs, but don't let go the vol buttons until you see in MSM it started to download.

I just held the two vol buttons and connected like that, but nothing happened that way.
[OnePlus 8T Guides, News, & Discussion] BillGoss:
You need to hold down Vol up+Vol down before connecting the phone to the PC. After that you can release them.
[OnePlus 8T Guides, News, & Discussion] cabagekiller:
I am trying to downgrade my firmware but I keep getting a param preload failed error. anyone run into this issue and found a resolution? thank you
[OnePlus 8T Guides, News, & Discussion] Achi Shukuteki:
You need the Qualcomm drivers.
[OnePlus 8T Guides, News, & Discussion] cabagekiller:
Yes. That was my first issue. I got that resolved. Just baby steps.