yashsingh1/xdaforums huggingface dataset:
[OnePlus 8T Guides, News, & Discussion] BillGoss:
Tl, dr:

Getting Firehose communication handshake failed is not the end of the world

I've always (to date) been able to use the MSM Tool to get me out of a mess where I couldn't use TWRP or bootloader to fix things

I've never needed to reinstall the Qualcomm driver

The MSM Tool can take numerous attempts to get it working (depending on the state the phone is in)

I'm sooo glad we have the MSM Tool

The long story

I've used the MSM Tool lots of times after screwing things up flashing roms or rooting the phone. And I've always followed the OP instructions and they've worked flawlessly.

But then I started testing out the OOS 12 Open Beta 1 (OB1). To my dismay I discovered that I could not boot into recovery with TWRP installed.

To be more precise, if OB1 is installed on the active slot, OOS 11 was installed on the inactive slot, and TWRP is installed on both slots, then booting recovery from OB1 boots TWRP on the inactive slot! And changing slots in TWRP and rebooting recovery will return to the inactive slot.

So I started to see what might be causing this. Clearing out the OB1 boot, DTBO, or super partitions message no difference. So this issue was clearly not related to the weird changes made in OB1 to the system partitions.

I then decided to systematically go through the other partitions and one-by-one replace them with the OOS 11 equivalent, booting recovery on the OB1 slot after each change.

But doing this left me either in CrashDump mode with its splash screen but no error message or, worse still, on a black screen that I assume was CrashDump because it responded to Pwr + Vol Up just like CrashDump does. And I was, at this point, unable to power off the phone or boot into bootloader.

But when I then connected the phone to the MSM Tool it would connect but then stop with Firehose communication handshake failed.

I googled this but didn't come across anything that I found at all helpful. The closest I saw that was worth trying was https://xdaforums.com/t/guide-mega-unbrick-guide-for-a-hard-bricked-oneplus-3.3405700/post-72135723 where it suggested holding Pwr + Vol up whilst connected to MSM Tool.

I tried that and lots of other permutations but nothing seemed to help. And then, all of a sudden the MSM Tool worked as normal and successfully restored my phone. And this happened after giving up and shutting down the tool but then deciding to give it one more go.

Unfortunately I can't provide a definite process to get around the "Firehose" error other than to try repeatedly and to try restarting the MSM Tool.

But the good news is that you can get past the "Firehose" error using the MSM Tool.

A few other things that I learnt in the process (yes, I ended up in this mess a number of times!) are:

Pressing Start in the MSM Tool before you connect the phone to the PC let's you take as long as you need to connect. MSM will stay waiting indefinitely.

You can simply connect the phone to the PC whilst it's still in CrashDump mode and then press Pwr + Vol Up until the phone buzzes and then hold Vol Up + Vol Dn and MSM will then connect.
[OnePlus 8T Guides, News, & Discussion] Rootk1t:
Did you find a reason of this behaviour in the end?
[OnePlus 8T Guides, News, & Discussion] BillGoss:
Sadly, no. Every time I swapped out a partition I ended up in CrashDump.
[OnePlus 8T Guides, News, & Discussion] Achi Shukuteki:
I can't, for the life of me, get the MSM tool to operate properly. Sahara errors, DDR errors, etc. Trying different firmwares. I'm doing everything by the book. Drivers are installed. So I'm at a loss right now.
[OnePlus 8T Guides, News, & Discussion] Drymarchon:
Having just purchased a brand new 8t, I want to clarify, are international devices (KB2005) also effected if manufactured after March 9th 2021, or is it just the variant for china (KB2000)? Will I need to figure out how to get a newer MSM tool for OxygenOS or can i use the ones in the OP?
[OnePlus 8T Guides, News, & Discussion] Drymarchon:
Update to this, I finally recevied it and it booted up to 11.0.7.10. do i need to find the msm tool for 11.0.7.10 or should the old ones work?
[OnePlus 8T Guides, News, & Discussion] maitpatni:
Links for the international firmware are dead, can someone please share.
[OnePlus 8T Guides, News, & Discussion] Tamiriz:
following on this - same request.
[OnePlus 8T Guides, News, & Discussion] Tamiriz:
also no download link for the MSMdownloadtools
[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 or the system.
[OnePlus 8T Guides, News, & Discussion] ewong3:
just a tip for those who run into similar issues:

1) on latest win11 with usb3 (not sure which!) the qualcomm driver shows with exclamation mark in device driver - so will not recognise the phone;

2) once moved to flash on older laptop on win10 on usb2 port, all worked fine

the above was despite the driver seemingly installing fine, and the download page somewhere said that this worked on win11...
[OnePlus 8T Guides, News, & Discussion] ewong3:
weird experience - oem unlock greyed out in dev options

after various tries to get it going, it turned out that the phone was set up without any wifi/phone connections, through random luck, i turned on wifi and suddenly the oem unlock switch was activated, if anyone had this error while executing 'fastboot oem unlock'

FAILED (remote: 'Flashing Unlock is not allowed')

turning on internet might cure it... but why, god knows!
[OnePlus 8T Guides, News, & Discussion] BDProductions:
When I get MSM to see the phone it fails after unable to detect DDR...

OnePlus cable that came with phone, and works fine to flash ROMs.

Hit a snag with DerpFest, and decided MSM back to OOS 11 would be a good starting point... no luck.

See image.

How is this resolved? Windows 10 Pro, 64 bit version, plenty of resources and no other issues including ADB and FASTBOOT work as expected.

Any help would be appreciated
[OnePlus 8T Guides, News, & Discussion] Achi Shukuteki:
See if you can switch the DDR to 4. And try again.

Otherwise, see if you use the earliest firmware possible (if that's not the earliest one.)
[OnePlus 8T Guides, News, & Discussion] BillGoss:
See if this helps https://xdaforums.com/t/op8t-oos-kb...your-device-to-oxygenos.4180837/post-85053037
[OnePlus 8T Guides, News, & Discussion] BDProductions:
close, but no cigar.

more reliable to get MSM to see it, but fails with the "Automatic detection of DDR failed"

always 23 seconds in using USB2 or 3 ports.

running the windows 7 version it fails the DDR check @ 10 seconds.

In any case, when it fails the DDR type detection, that's it.
[OnePlus 8T Guides, News, & Discussion] BDProductions:
What's really interesting, is that I was able to easily use the Lineage 18.1 recovery to reinstall LineageOS.

MSM seems a crap shoot gamble.

Easy to get it to connect, but it always fails in detecting the DDR memory type...

I wanted to go back to OOS 11, then just root, safetynet, exposed so I could end up with everything I want. It sucks that the MSM tool is so finicky or poorly written.

it definitely doesn't like my 1+ 9 Pro (global model) even if I use the same original USB C cable that the phone came with .. the same cable that works perfect to transfer files, ADB, or FASTBOOT, installing LineageOS 18.1 or crDroid the first time everytime...

Now it appears I am stuck without the ability to revert to OOS 11...
[OnePlus 8T Guides, News, & Discussion] Achi Shukuteki:
Have you used the earlier firmwares?

I had issues but mine seemed to be internet connection related, though.
[OnePlus 8T Guides, News, & Discussion] BDProductions:
Not sure what firmware you are talking about... some people interchangeably use ROM and Firmware...

My internet is symmetrical 1Gbit fiber, so it's not internet related.

This is an issue with the MSM application or phone I am thinking, because it fails the same DDR identification whether I use a USB2 or USB3 port, no matter which cable I use.

In any case, I flashed the LineageOS 18.1 ROM back to the phone, and it's usable at least.

I can't see a cable being the issue if it's able to flash gigabytes of ROM OS with the same cables. That leads me to believe the issue is phone or MSM tool.

Anyway, for tonight I am setting down the phone and relaxing. Thankfully I have a secondary phone.
[OnePlus 8T Guides, News, & Discussion] Achi Shukuteki:
Have you toggled the DDR tab on the top and see if that helped/worked?

I used an earlier firmware to flash (it didn't have the DDR tab) that worked for me from there I just upgraded to the latest available version locally.

That file might be located on the other thread.
[OnePlus 8T Guides, News, & Discussion] BDProductions:
That's pretty much what I did. Went to the 4.0.0 one for India... It all came back with English locale, updated once to bring it to the last A11 update... using it that way now.
[OnePlus 8T Guides, News, & Discussion] Achi Shukuteki:
So you're good to go?
[OnePlus 8T Guides, News, & Discussion] BDProductions:
I am, thank you.

Once I realized that jt was super easy to start the MSM tool, plug in the phone, hit start, then hold 3 button salute til the MSM tool shows it connects. It goes well from there on.
[OnePlus 8T Guides, News, & Discussion] Feduz:
cannot find anything! But PC recognize the smartphone on fastboot mode
[OnePlus 8T Guides, News, & Discussion] orma1:
you can use the official way to downgrade from oneplus:

OnePlus Community

Introducing our new OnePlus Community experience, with a completely revamped structure, built from the ground-up.

forums.oneplus.com

you need to download both an apk and install on the phone and a rollback package.

I used this method sucessfully to downgrade to OOS11

note that i sent the link for oneplus 8t if you have a different OP phone search for another link
[OnePlus 8T Guides, News, & Discussion] enolaN_Fr:
Hi everybody,

I'm experiencing some trouble, today I manage to make the android 12 update, I lauch the install by internal updater everythings goes done exept when the phone reboot. It start bootloop on OOS logo and nothing come back.

More than 5min later I turn it off and retart, same bootloop, I can go to recovery and fastbootmod, so I try to switch between the two installation slot android 12 is on A and I switch to B... Now it bootloop immediately and I can't go nowhere (I do that to have a chance to recover all my data, but it's worse).

So I resigned myself to do MSM recovery, but I can't connect the phone to computer properly.

When it is on bootloop the only way to stop it is volume up + power during few sec, after that, I follow post instructions start MSM, volume up + volume down usb plug etc

But nothing come up and phone bootloop everytime.

I try every usb port of my computer, installed qualcomm driver, my phone is never recognized by my computer so I'm running out off solutions....

If someone have a idea....

Thanks
[OnePlus 8T Guides, News, & Discussion] stashcat:
EDIT: plz ignore i have brain damage, was trying to flash the wrong phone having been told this is an 8T :)
[OnePlus 8T Guides, News, & Discussion] tonidxn:
did you succeed ?
[OnePlus 8T Guides, News, & Discussion] Feduz:
Yes I've uninstalled all drivers, then shutdown the smartphone, link to pc and working. I've a second theory, That I tried in the same time (so I don't know if it was a driver fault or this second one). You need to enter in another "mode", not fastboot. I discovered it on a video, because in this guide it was not clear. Didn't find it but search on YouTube. Seems you need to enter in this mode, the screen remains black, link to pc, and the MSM recognise it.
[OnePlus 8T Guides, News, & Discussion] Soumyadeepbs4:
Hey, my 8t is 2020 dec manufactured indian version, have used oos msm tool to flash and it shows download complete everytime but phone is not booting after that. Tried all button combinations with no response .Seems like its stuck in EDL mode. Any help would be greatly appreciated.
[OnePlus 8T Guides, News, & Discussion] diskobox:
Hi, my EU 8T is bricked, powering up gives me the 'image destroyed' error, but I can still get to bootloader. Whenever I try to run MSM the process fails at 'Param Preload Failed'. I've tried the newest and oldest OOS links, and the HOS one for newer devices, and all give me the same error.

I've tried W10 and W11 on two separate machines, rebooting into unsigned driver mode, and MSM always fails at the same point. I've tried the OnePlus cable and other USB-C cables in 2.0 and 3.0 slots as well.

i've also tried using the payload dumper method but that doesn't work either.

Any help gratefully received!
[OnePlus 8T Guides, News, & Discussion] Rootk1t:
How to Fix Stuck in Param Preload error MSM Download Tool

In this tutorial, we will show you how to fix Stuck in Param Preload, Sahara communication failed, and other MSM Download Tool errors.

www.droidwin.com
[OnePlus 8T Guides, News, & Discussion] Devar Bl3nd:
What is version for KB2000?
[OnePlus 8T Guides, News, & Discussion] BillGoss:
KB05AA
[OnePlus 8T Guides, News, & Discussion] Rootk1t:
As far as i remember chineese KB2000 came with HydrogenOS or now ColorOS from factory.

Though, as we all know, one can install any version (GLO|IND|EU) on it.

So KB05AA is not its original customization, as well as others like KB05BA and KB05DA too ;)
[OnePlus 8T Guides, News, & Discussion] BillGoss:
My KB2000 came with OOS KB05AA installed.
[OnePlus 8T Guides, News, & Discussion] Rootk1t:
My came with KB05DA installed.

Chinese shops reflashed devices for outside china customers with GLO or India firmwares.
[OnePlus 8T Guides, News, & Discussion] magbrave:
Phone boots only in fastboot...nothing else ......

C:\Users\Mag\Downloads\PIxel\payload_dumper-win64\payload_dumper-win64\payload_output>fastboot boot C:\Users\Mag\Downloads\PIxel\PixelExperience_Plus_kebab-12.1-20220525-1549-OFFICIAL.img

Sending 'boot.img' (98304 KB) OKAY [ 2.136s]

Booting FAILED (remote: 'Failed to load/authenticate boot image: Load Error')

fastboot: error: Command failed

tried fastboot.bat menthod for undo

msm tool

manual flashing...

everything fails while rebooting into recovery ....

Any Suggestions .....help
[OnePlus 8T Guides, News, & Discussion] rollex:
THANK YOU. You are a lifesaver.
[OnePlus 8T Guides, News, & Discussion] HeRock:
Hi All,

I am trying to revive my bricked OP8T KB2001

I observe the following:

1. No image on screen, no matter what I do.

2. When I connect to my PC, I get 1 device. "KB2001" under USB

3. I cannot get into EDL mode, even I cannot turn the device off.

I tried ADB Devices, and my device is detected. I don't have USB Debugging turned on though.

I CANNOT turn the device off! If I long press VOLUP+PWR key the device reboots immediately and KB2001 reappears.

I tried long pressing VOLUP+VOLDWN+PWR but that too doesn't work.

Tried pressing VOLUP+VOLDWN with USB disconnected, then plugged in USB and release the buttons, but it doesn't work.

Tried discharging the device and then charging up from dead. It automatically turns on.

At my wits' end here. Does anybody have any idea? :/
[OnePlus 8T Guides, News, & Discussion] BillGoss:
I've found that the MSM tool works perfectly if you use it to reset a working system.

But I've also found that when the phone's in a mess it's a bit and miss, but eventuality I've always managed to get it to work.

So try this:

- Start MSM, select O2

- Hold Pwr + Vol Up + Vol Dn and

- Connect to PC (Device Manager shows Qualcomm HS-USB Loader, COM4) and release the buttons

- Hold Vol Up + Vol Dn until MSM shows connection (but this time it's always COM3) then release

- Press Start

- And away it goes
[OnePlus 8T Guides, News, & Discussion] alp47470:
How were you able to solve this issue? I am having the same problem.
[OnePlus 8T Guides, News, & Discussion] kjslabber:
Try using different USB port, usb2 if you have sometimes works better.
[OnePlus 8T Guides, News, & Discussion] drtweak:
HOURS!!! I have been trying to get this to work!!! There is one KEY things that I just now remembed now that I actually read the WHOLE Tutorial Again....

Once you put it in EDL mode to install the drive, make sure you actually shut the phone for FOR AT LEAST ONE MINUTE!! I tried EVERYTHING. Ryzen 5000/3000, Intel (8th gen and also a 4th gen), USB 2 USB 3 Multiple USB cables, Multiple drivers, and nothing every time. I would ether just get nothing, or Open Serial Device Failed, or Sahara Communication Failed...Then i let the damn thing sit for a minute after installing the latest drivers (VOL + and - and Power until you get to booloader and then select power off (Vol + then power). Once i let it set for over a minutes did VOL + and - again after hitting start on the MSM tool...it...just...F'EN WORKED.....

</rant>
[OnePlus 8T Guides, News, & Discussion] monirdottmkm:
i am facing this same problem with 8T ...

i tried to flash a rom then stuck into bootloop ... To solve this i tried to flash another rom in my device i stuck into hard brick mode . fastboot / recovery mode nothing is working . Only thing i am getting is in device manager on pc i see on port connection Qualcomm HS-USB QDLoader 9008 (COM6) . that means Only EDL is working .can someone please help me
[OnePlus 8T Guides, News, & Discussion] monirdottmkm:
i am facing A problem with 8T ...

On MSMDownloadtool i m having this msg " Automatic detection of DDR Failed "

i tried to flash a stockrom then stuck into bootloop ( fastboot & recovery both working )... To solve this i tried to flash another rom in my device and stuck into hard brick mode .After this fastboot & recovery mode nothing is working . Only thing i am getting is in device manager on pc i see on port connection Qualcomm HS-USB QDLoader 9008 (COM6) . that means Only EDL is working
[OnePlus 8T Guides, News, & Discussion] BillGoss:
Try this: https://xdaforums.com/t/msm-tool-unroot-stuck-on-waiting-for-device.4448835/post-86932521
[OnePlus 8T Guides, News, & Discussion] monirdottmkm:
thanks for your suggestion ... it didnt work for me ...

bt i have found a solution of my problem by trying various of roms and MSMDownloadtools .

only thing that worked for me is Tmobile Rom and MSMdownload tool for tmobile ...

i dont know bt it unbricked my hardbricked phone ....
[OnePlus 8T Guides, News, & Discussion] monirdottmkm:
i have found a solution of my problem by trying various of roms and MSMDownloadtools .

only thing that worked for me is Tmobile Rom and MSMdownload tool for tmobile ...

i dont know bt it unbricked my hardbricked phone ....
[OnePlus 8T Guides, News, & Discussion] clarkcant:
This has worked for me in the past. But now, the tool isn't recognizing my device. My computer makes a noise when I connect my phone. And when I'm in Fastboot mode, I can run Fastboot commands.
[OnePlus 8T Guides, News, & Discussion] pencin:
I tried several times with the same result. I finally tried the "other 8T 5G' phone and it worked perfectly!

Well, MAYBE - it got submitted and now I have to wait 7 days for an E-Mail..
[OnePlus 8T Guides, News, & Discussion] thecapi:
Hello Guys,

I need some help I hope I can find here. I bricked my OP8T KB2003 and I still have coredump after the flashing process. I think it is maybe because it is likely manufactured after march 9th 2021.

Does someone know where I could find the MSM HydrogenOS 11.0.7.12 for kb2003? I d like try it before buying a new phone !

Thank you for help!
[OnePlus 8T Guides, News, & Discussion] GraveDigger176:
Click on the link for the thread and then in this thread on post #263 there is the maga link and the link worked
[OnePlus 8T Guides, News, & Discussion] thecapi:
My bad, kb2003 = KB05xx, then it seems it's dead. I took some water but since it still boot in fastboot I was thinking maybe it can be unbricked.

thx you for reply!
[OnePlus 8T Guides, News, & Discussion] AxeKing:
i am facing the same issue msm doesnt showe anything can you help me ?
[OnePlus 8T Guides, News, & Discussion] AxeKing:
hello guys i need some help i bricked my one plus 8t, the thing is i have installed drivers that were needed but the msm tool is not working it opens up but doesn't display coms, connection or anything just the normal screen with enum and start and other things please can anybody help me
[OnePlus 8T Guides, News, & Discussion] Bl4ck R1ver:
pls remove
[OnePlus 8T Guides, News, & Discussion] :
Hey, I've got same issue and cannot installed drivers using the cab file. I solved it by plugging in device in EDL mode and going into windows settings - windows update and there was little link called optional updates. Under drivers there was something like qualcomm ports. I installed it and msm worked fine after that. I dont know if you need unnistall previous drivers for the update to appear (not sure at which point it appeared, I've experimented with differnt versions of the driver and only know it wasnt installed at that point).
[OnePlus 8T Guides, News, & Discussion] mslezak:
I bricked my OnePlus 8T Tmobile variant after installing an update to Android 12, setting up Magisk and Zygisk (?), SafetyNetFix (modded for GPay)... everything was working great until I tried rename Magisk and it went haywire. Then I didn't realize the TWRP backups on A12 are useless for Data, flashing them will brick your phone... Originally MSM'd to Tmobile A11 and realized how much I hate the carrier branded phone... then this worked no problem. If it doesn't work for you, ensure your Qualcomm 9008 driver is actually installed. Getting to EDL mode is a little tricky on a bricked phone. Sometimes the vol+ vol- works and other times it doesn't. Especially if your phone is rebooting constantly. Mine was showing some weird Chinese saying the boot or recovery partition was destroyed. Had to switch slots in Fastboot then boot TWRP, boot to EDL, finally worked. This doesn't pass Google Playstore verification in A11, but if you upgrade to A12, then it does, and everything works without Magisk or any of that complicated stuff. Root is gone too. I don't care at this point; I usually flash custom kernels, but I need my phone for business things so I'm okay with losing root and not having to setup Magisk / Zygisk / SafetyNetFix as I did earlier in the day. Everything works just fine now, just stock OS.
[OnePlus 8T Guides, News, & Discussion] andonisu:
Hi, is there any newer version of MSM tool to install A12 automatically, or do I have to start in A11 and then update from there?
[OnePlus 8T Guides, News, & Discussion] Diaze:
i get an error unsupported target h2 invalid praram. i have a kb2005 and i have the right msm tool.
[OnePlus 8T Guides, News, & Discussion] Rootk1t:
No new version. Start in A11 and update from there.
[OnePlus 8T Guides, News, & Discussion] ramdom@alien:
boot image crash error for oneplus8t and I tried to unbrick following the process by downloading all the tools and when I connect the device it gives the below errors, please help.?
[OnePlus 8T Guides, News, & Discussion] BillGoss:
That's the correct connection type. It's not using USB.
[OnePlus 8T Guides, News, & Discussion] ramdom@alien:
Thanks Bill for the response, is there any way to make it work, bcoz I do not have any other phone right now. :(
[OnePlus 8T Guides, News, & Discussion] BillGoss:
Just follow the OP instructions. Hint: start MSM after opening it. Otherwise you have 10s to hit start after the phone connects before it disconnects.
[OnePlus 8T Guides, News, & Discussion] NewUsar:
Thank you for all involved here. Could get my phone back after a failed LOS update. Now I need to get back into how to get LOS on my phone. ;) Hopefully without having to come back here this week!
[OnePlus 8T Guides, News, & Discussion] damn-developer:
where can I find driver for win11 op 9pro?
[OnePlus 8T Guides, News, & Discussion] kairi033:
can someone clarify if I can msm flash indian version to my kb2003 unit? I just want to test something thank you.
[OnePlus 8T Guides, News, & Discussion] Rootk1t:
KB05DA tools (indian firmware) links are in the first post of the thread.
[OnePlus 8T Guides, News, & Discussion] kairi033:
thank you, I did try msm flash Indian version without any problem but what I wanted to test did not work.