yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy J7 Questions & Answers] PlsHelpMeRootingImBegging:
its okay i got 2 more question

Can i use a phone charger

do i download that file u gave me on my pc or phone
[Samsung Galaxy J7 Questions & Answers] weric43:
Download it to ur PC and then unzip it
[Samsung Galaxy J7 Questions & Answers] PlsHelpMeRootingImBegging:
tysm Bye

hopefully i can do this on chromebook cause my windows 10 got virus if i cant i do by brother windows
[Samsung Galaxy J7 Questions & Answers] weric43:
It does not have a virus
[Samsung Galaxy J7 Questions & Answers] weric43:
Do u have ur firmware downloaded on ur pc
[Samsung Galaxy J7 Questions & Answers] PlsHelpMeRootingImBegging:
i ment my pc got a virus a month ago from a file i downloaded so i cant use it is what im saying so im testing it on chromebook if it dont work ima use my brothers windows 10 i nevr said it got a virus sorry you thought i said that i feel bad now
[Samsung Galaxy J7 Questions & Answers] weric43:
I was just saying the file don't. If u don't have ur firmware downloaded on ur PC yet u need to download it ur gonna need it to get ur boot file from it. U can download it free just search for it on google. U will need ur boot img to patch with magisk. Also do u have a SD card?
[Samsung Galaxy J7 Questions & Answers] PlacidFury:
Would this work to root my SM-J737P with firmware J737PVPS9BUD2 on Android 9.0? What other files do I need to accomplish this? Thanks!
[Samsung Galaxy J7 Questions & Answers] الٖهْــۦٕ٘۬ــۦٕ٘۬ــڪرز:
Yes
[Samsung Galaxy J7 Questions & Answers] Cdd100:
Flashed and installed a GSI for lineageOS, works amazingly! /e/ os GSIs also work great.
[Samsung Galaxy J7 Questions & Answers] Rickyloc:
Hey man. I know this is an old post. I am trying to install any GSI on my j737 refine. I can't figure out how to create the vendor partition, which is needed I think? Which GSI did you flash? I have stock firmware with twrp and magisk.
[Samsung Galaxy J7 Questions & Answers] Cdd100:
You can just reboot to download mode and flash GSI's to the system partition with Heimdall. The type of GSI you are looking for are A64 (not to be mistaken for arm64) a only GSI's. You will not find many and not all will successfully boot, but most should work.
[Samsung Galaxy J7 Questions & Answers] Cdd100:
You can find /e/ os GSI's at e.foundation. It is a degoogled GSI.
[Samsung Galaxy J7 Questions & Answers] GuestK00251:
work for j737t and j737t1?
[Samsung Galaxy J7 Questions & Answers] ☆KØŁØЯΛĐØ☆:
Negative. As with other TWRP Recoveries, this is device specific. It could potentially work with the Sprint variant but as far as flashing it on GSM devices, that's not going to respond all too well lol
[Samsung Galaxy J7 Questions & Answers] CamoGeko:
Thread posted in the incorrect section.

Dev thread is here - https://xdaforums.com/galaxy-j7/development/twrp-root-galaxy-j7-refine-8-0-boost-t3916575

Please continue the discussion there.

Thread closed.

Camo.
[Amazfit] vmcgreborn:
i select second opcion in reboot recovery , and now mi watch dont turn on the only thing that do is be reconiced by windows. like a JZ4785 usb boot device.

any help i apreciate it.
[Amazfit] Saratoga79:
You did a force erase from that menu. You may check this thread: https://xdaforums.com/smartwatch/amazfit/tutorial-ingenic-cloner-tool-aamzfit-t3908237
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
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 modified before it was cool.

Hi everyone, similar to my threads for OP3, OP3T, OP5, OP5T and OP6 as unbrick tools allow to (obviously) unbrick your phone but also to rollback to specific versions of Oxygen OS I decided to search for more and succeeded in that.

I linked to 9.0.11 , 9.0.6 and 9.0.5 packages shared by @iaTa in his thread and by @SpasilliumNexus in his AFH here, rest has been found and shared by me.

As the instructions and Qualcomm drivers are already available here , I don't feel a need to rewrite them.

You can ask questions here on how to use and issues, however I might not be able to answer immediately.

Here are the files uploaded on AndroidFileHost ordered by Android version:

ANDROID 9:

OOS 9.0.4

OOS 9.0.5

OOS 9.0.6

OOS 9.0.11

OOS 9.0.12

OOS 9.0.13

OOS 9.0.15

OOS 9.0.16

ANDROID 10:

OOS 10.3.0

OOS 10.3.2

OOS 10.3.5

OOS 10.3.7

OOS 10.3.8

Mirror for first and last MSMs per Android version: https://onepluscommunityserver.com/
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Notes for T-Mobile version owners:

It is possible to use Pie EDL packages with patched tool made by [MENTION=9557721]AnonymousTipster[/MENTION] available at https://drive.google.com/open?id=1dYuVxnf_J97KPrRt6KEBOjau1BRvtnJQ (download link come from his thread ).

According to [MENTION=9317968]fullofhell[/MENTION] , the commands "fastboot erase modemst1" and "fastboot erase modemst2" will turn off SIM lock definitely and allow OEM unlock option to stop being greyed out in developer options (behaviour introduced in OOS versions superior to 9.0.11). That will allow to unlock bootloader and then root/flash custom roms.
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Credits:

@Titokhan for giving advice on how to present thread

@headsh0t95 for suggesting me to request an access to upload files on AndroidFileHost

@AndroidFileHost for the hosting

OnePlus for the device and OS
[OnePlus 6T  Guides, News, & Discussion] ZeroKool76:
Decrypted. Wot?
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Decrypted meaning no longer protected by passwords sorry for the confusion but if you take a look at the previous threads I made you might notice that some of the files are still password protected as OnePlus support don't give you these files already decrypted when they remote to your computer to help you to unbrick your phone -which is quite understandable as they allow to bypass Google Factory Reset Protection-.
[OnePlus 6T  Guides, News, & Discussion] ZeroKool76:
Awesome. Thank you for the clarification
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Added 9.0.13 unbrick tool
[OnePlus 6T  Guides, News, & Discussion] gasroca:
Guys i am not that experienced on this stuff. I've bricked my 6t and dont have access to a windows computer. either mac or linux only. Anyway to run this on mac or linux?
[OnePlus 6T  Guides, News, & Discussion] kermex:
Where is it?!
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
The tool is sadly Windows only but you could try to setup a virtual machine with USB passthrough

In the first post perhaps?
[OnePlus 6T  Guides, News, & Discussion] gasroca:
Cannot get the device off this screen, no buttons combinations, commands or anything, doesn't get recognised as device either.. Anyone, any suggestions?
[OnePlus 6T  Guides, News, & Discussion] kermex:
That DECRYPTED OOS 9.0.13 link?
[OnePlus 6T  Guides, News, & Discussion] GuestK00177:
Anyone ever come across an open beta msm? And FYI, if you copy Anon tipsters patched msm factory.exe to this tools working directory, it works.

Thanks man
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Did you try maintaining power button to force it to shutdown? I don't see anything else that could be done otherwise

Yes

As far as I know OnePlus doesn't provide any open beta msm tool. Anon tipsters patched msm factory.exe will indeed work however as written here 9.0.11 version must be used if user wish to unlock bootloader as later versions of OOS closed the loophole that allowed T-Mobile owners to do so
[OnePlus 6T  Guides, News, & Discussion] gasroca:
Yeah thanks. I've managed to fix it after almost 2 days of messing about with it its now back to normal ?
[OnePlus 6T  Guides, News, & Discussion] GuestK00177:
Ok just wondering about the beta. Through my extensive testing the past few months I discovered No, they only patched the loophole if one has not first converted then did fastboot erase modemst1 then fastboot erase modemst2.. then the thing that causes oem unlock to be greyed for users using msm 12 and up is disabled. Those commands turn off sim lock in the hardware.once that is done one time. Users can simply copy the patched msm exe to every new additional msm tool directory. After erasing those both at least one time after a first conversion with 9.011, u can have the device fully international and every tool allows it to work. I discovered the greying out and disabling of oem unlock starting with 9.0.12 and discussed it in various threads and people didn't pay attention to it lol. Erasing modemst1 and modemst2 simply turns off the lock. For good. Then if u check engineer mode it says sim lock off and that's even if u never used a bin. This supercedes that even. So maybe update the first post to include that is a confirmed way to cement your conversion without the issue of simlock and a voiding of the 9.0.11 bootloader unlock workaround. This is permanent and once u do so any msm furthermore works to allow bootloader unlock

---------- Post added at 02:35 PM ---------- Previous post was at 02:33 PM ----------

If u haven't fixed yet, your partitions are derped. Power off and run msm. Or just run a fastboot rom to fix. When that happens just msm, it's the quickest. And if u do as I explained above u can just use the newest msm and not have to upgrade..
[OnePlus 6T  Guides, News, & Discussion] xstefen:
facts tho i prefer fastboot method, just remove the windows related **** from the bat and copy paste.

[MENTION=9317968]fullofhell[/MENTION] where is your repo
[OnePlus 6T  Guides, News, & Discussion] GuestK00177:
Yeah that's what I do

---------- Post added at 09:09 PM ---------- Previous post was at 08:27 PM ----------

I made a bunch of scripts for Debian bases distros.. i use newest pop os...wonder if we could port msm over somehow...lol
[OnePlus 6T  Guides, News, & Discussion] xstefen:
I typically run Arch or a derivative but its all the same, I'd help with whatever I could.
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Just to be sure, that engineer mode can be accessed from *#808# and SIM lock section is when swiping to the right, in "Others column"? It is like that on my 5T (see screenshot) but I don't know if it's same on a converted 6T
[OnePlus 6T  Guides, News, & Discussion] suhas.holla:
So I own the device can you pm me how to do it please?
[OnePlus 6T  Guides, News, & Discussion] kousarali:
i also have the device. please let me know if i can be of any help.
[OnePlus 6T  Guides, News, & Discussion] Bagusinskis:
@Some_Random_Username i would like to help. I have unlocked bootloader and i am OnePlus mod in one of the biggest groups. Own OnePlus 6T can you help me make new msm tool updates?
[OnePlus 6T  Guides, News, & Discussion] _LeoBona_:
Hi, my 6T is stuck in CrashDump Mode after updating to Android 11is there a msm download tool for that version, or should I use the latest for A10?

Edit:

I managed to do it with the latest A10 file

Thanks for the guide!
[OnePlus 6T  Guides, News, & Discussion] Mr.AnZy:
Hi, So my op6t doesn't turn on and is completely stuck on a black screen. it did show up on my PC and I added the Qualcomm driver and it show as "Qualcomm HS-USB QDLoader 9008 (COM4)" but when I try to use the MSM tool to try and unbrick my phone. it just shows the error "Sahara Communications Failed, try again after power off phone (FH: 258)" at 16s but my phone doesn't even turn on. so I am not sure how to go ahead from here really need help. I got here because when installing TWRP it got stuck on the splash screen and I restarted by holding all 3 buttons and it never restarted.
[OnePlus 6T  Guides, News, & Discussion] Wishmasterflo:
Unplug your phone, get in fastboot mode, turn off phone, wait 15 secondes and get back in Qualcomm EDL mode. You can also try using a USB 2.0 port instead of a 3.0 one.
[OnePlus 6T  Guides, News, & Discussion] ToTheMoon01:
Thanks For The Help
[OnePlus 6T  Guides, News, & Discussion] ToTheMoon01:
Oneplus 6/6T Users This Thread is God Level You can get Everything in One Place.
[OnePlus 6T  Guides, News, & Discussion] Iamrkk:
can i use them go to global version and rolllback from custom android 12 rom
[OnePlus 6T  Guides, News, & Discussion] fesi.baloch:
Hello. I have a OnePlus 6T phone. It turns on, it is stuck on Lego. I tried all the ROMs, it still doesn't boot. Please help.

OOS 9.0.4

OOS 9.0.5

OOS 9.0.6

OOS 9.0.11

OOS 9.0.12

OOS 9.0.13

OOS 9.0.15

OOS 9.0.16

OOS 10.3.0

OOS 10.3.2

OOS 10.3.5

OOS 10.3.7

OOS 10.3.8

He has not answered yet
[OnePlus 6T  Guides, News, & Discussion] jungerboyo:
I've managed to revert back to stock without MSMDownloadTool.exe using https://github.com/bkerler/edl (I used 3.52 version) and

GitHub - bkerler/oppo_decrypt: Oppo .ofp Firmware decrypter and oneplus .ops de-/encrypter

Oppo .ofp Firmware decrypter and oneplus .ops de-/encrypter - bkerler/oppo_decrypt

github.com

(it's not versioned, I cloned when git sha of last commit was 9a7feb685db4a39ee05168f71afa90aa621ad63f) on linux and I thought I will share.

After unzipping OnePlus_6T_OxygenOS_10.3.8.zip in the fajita_41_J.50_210121/ you can find .ops file. Grab the second tool mentioned and extract it as such:

python opscrypto.py decrypt (...)/OnePlus_6T_OxygenOS_10.3.8/fajita_41_J.50_210121/fajita_41_J.50_210121.ops

It will extract it under fajita_41_J.50_210121/ to extract/ directory. You can find there plethora of files. Some files needs to be renamed based on which A/B slot is active one (probably it doesn't matter since it's possible to switch active slot with fastboot anytime). To check active slot with fastboot do (be sure the device is connected and in fastboot mode):

fastboot getvar current-slot

Suppose the ative slot is 'a', so files in extract directory have to be renamed like this:

abl.elf -> abl_a.elf
aop.mbn -> aop_a.mbn
boot.img -> boot_a.img
cmnlib64.mbn -> cmnlib64_a.mbn
cmnlib.mbn -> cmnlib_a.mbn
devcfg.mbn -> devcfg_a.mbn
dtbo.img -> dtbo_a.img
4j1ed.bin -> fw_4j1ed_a.bin
4u1ea.bin -> fw_4u1ea_a.bin
hyp.mbn -> hyp_a.mbn
logo.bin -> LOGO_a.bin
odm.img -> odm_a.img
qupv3fw.elf -> qupfw_a.elf
storesec.mbn -> storesec_a.mbn
system.img -> system_a.img
tz.mbn -> tz_a.mbn
vbmeta.img -> vbmeta_a.img
vendor.img -> vendor_a.img
xbl.elf -> xbl_a.elf
xbl_config.elf -> xbl_config_a.elf

Then run first tool mentioned as such (be sure the device is connected and in EDL mode):

python edl.py wl (...)/OnePlus_6T_OxygenOS_10.3.8/fajita_41_J.50_210121/extract/ --memory=ufs --loader=Loaders/oneplus/0008b0e10051459b_dd7c5f2e53176bee_fhprg_op6t.bin
[OnePlus 6T  Guides, News, & Discussion] :
Yes, I posted the verification that's what it is all those months back,, stating simlock=off.i tested and re tested, relocked by flashing modemst1 and modemst2 via bootloader and then re running tmo msm .. it's as I said..

And that screen in engineering will say simlock on if you reflash.. the erasing of modemst1 and modemst2 persist through anything..even a smt wipe and full restore.
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Ok, I added notes regarding use with patched MSM in post number 2 and moved credits to number 3, let me know if you think I should add something else
[OnePlus 6T  Guides, News, & Discussion] Somehowko:
Help!

Help!

My phone is stuck at the boot logo (where the circles are) and it seems nothing will help to get me out of it.

First, I was having sensor issues so I tried to re-flashing persist.img (which I recon, quite stupid.) . after that I couldn't boot at all.

So, naturally, I tried Msmdownloadtool, and flashed Oos13. It flashed fine, the phone restarted, and I waited almost for an hour for it to boot just to see, I am stuck at that logo.

Is there anything I can do? At this point, I think I tried every msmdownload tool that is available (including what you posted.)

My phone connects to QD 9008 for the MSM and it flashes fine. it boots when the download gets green (download completed.)

Any help will be appriciated!
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Hi, I'm afraid that as that point there's nothing you can do by yourself to try to fix your phone and that you will have to contact OnePlus in order to get an RMA order.
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Added OOS 9.0.15 unbrick tool
[OnePlus 6T  Guides, News, & Discussion] ansonnippon:
:good::good::good:

thanks
[OnePlus 6T  Guides, News, & Discussion] robertelam83:
Is this for TMobile or global variant
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Hi, this is for global variant
[OnePlus 6T  Guides, News, & Discussion] Striatum_bdr:
Read second post
[OnePlus 6T  Guides, News, & Discussion] ansonnippon:
I hope to have the 9.0.16 unbrick tool as soon as possible
[OnePlus 6T  Guides, News, & Discussion] merikgvr4:
Same thing happened to my 6t. Will try msm tool later when I get home. I will lose recovery and root right?
[OnePlus 6T  Guides, News, & Discussion] sachin09:
I'm on 9.0.16. Can i use this tool to revert back to 9.0.15?
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Yes.

Bear in mind it will wipe all your data so don't forget to take backups of it.
[OnePlus 6T  Guides, News, & Discussion] sachin09:
thanks.

I forget to tell you that my phone is not rooted and the bootloader is locked.
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Bootloader state doesn't matter when using tool, don't worry about it
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Added OOS 9.0.16 unbrick tool
[OnePlus 6T  Guides, News, & Discussion] sachin09:
Thanks again for clarifying my doubt. :o
[OnePlus 6T  Guides, News, & Discussion] ansonnippon:
thanks thanks :good::good::good::good:
[OnePlus 6T  Guides, News, & Discussion] iRyan08:
Will this lock my bootloader and restore the widevine to L1?
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Yes

Bear in mind that it will also wipe any data present on your phone
[OnePlus 6T  Guides, News, & Discussion] iRyan08:
It's okay, as long as my widevine l1 is back.
[OnePlus 6T  Guides, News, & Discussion] funnyquill:
can i flash the 9.0.16 zip file from local upgrade in settings...or there is another method for it...??

(new to this stuff...so dont judge...noob or millenials etc)
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
I'm not sure to understand your question: do you mean that after using the unbrick tool?
[OnePlus 6T  Guides, News, & Discussion] funnyquill:
sorry sorry sorry...i thought this is not a tool but only flashable zip...sorry my bad

only 1 question if i now format data to f2fs...there will be no issues right..?
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Sorry, I have no idea about that as I do not own the device.

I think your query you will better fit for this thread https://xdaforums.com/oneplus-6t/how-to/official-oxygenos-9-0-4-ota-oneplus-6t-t3860953 or Q&A section of this forum.
[OnePlus 6T  Guides, News, & Discussion] ansonnippon:
I hope to have the 9.0.17 unbrick tool as soon as possible

thanks thanks
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
I hope to see you behaving less like someone who consider any such event to eventually happen as soon as possible.

Thanks for your understanding.
[OnePlus 6T  Guides, News, & Discussion] Matt(Fajita):
Will there be a version for OOS 9.0.17?
[OnePlus 6T  Guides, News, & Discussion] hodgestl:
Patience, young grasshopper, patience! :)
[OnePlus 6T  Guides, News, & Discussion] mpmca90:
my oneplus 6t stuck at Fastboot Mode screen, not able to restart by pressing power button and device also not visible via adb or fastboot command. I have macbook, so please can you suggest something
[OnePlus 6T  Guides, News, & Discussion] xRogerxC:
Are you using Windows in a Virtual environment??
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Just for your information tool is Windows only and if you can't manage to power off your device to later go in EDL mode nothing can be done.
[OnePlus 6T  Guides, News, & Discussion] xRogerxC:
Your questions have been answered in the msm download tools post. Please post your questions in one thread, not multiple, you're just confusing yourself. The phone must be turned Off to enter EDL mode!
[OnePlus 6T  Guides, News, & Discussion] Vilbizy:
Hello, will there ever be a 9.0.14 tool?
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
No, OnePlus didn't make one.
[OnePlus 6T  Guides, News, & Discussion] sebastiandg7:
Thanks a lot [MENTION=8234677]Some_Random_Username[/MENTION]!!! Any news about 9.0.17? That would be the last Android 9 firmware.

PD: Does anybody have a mirror? AndroidFileHost is not working for me...
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Hey, sorry for late answer but unfortunately I cannot provide it.

However if you manage to get it feel free to let me know and I will gladly add it to the OP.

Regarding your issues with AFH try selecting a mirror near to your location.
[OnePlus 6T  Guides, News, & Discussion] Lex177:
Hi! After an update over the air, the phone stopped showing signs of life. I have a black screen and nothing else.

I have Windows 10, so I turned off driver checking and installed the oneplus and Qualcomm driver. In device Manager I see Qualcomm HS-USB QDLoader 9008.

But when I run "6 T_MsmDownloadTool_v4.0. 59_OS_v9.0. 13" I get errors: "firehose getufsinfo failed" or " sahara communication failed...".

What is the problem? Do not fit the driver or am I doing something wrong?

The computer sees the phone only if I hold down the "-" and "+" sound keys before connecting to the computer. Combinations with the power button do not work... Help please.
[OnePlus 6T  Guides, News, & Discussion] trafalger888:
Are you using the original cable? Also can you try a different USB port? I had these issues and these suggestions helped.
[OnePlus 6T  Guides, News, & Discussion] Lex177:
No, there is no original cable now. Tomorrow I'll get original and try again. Thanks for the advice!
[OnePlus 6T  Guides, News, & Discussion] raymund08:
Hi can I use this tool to downgrade from stable android 10 to 9.0.16 pie? Thanks in advance!
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
As stated in first post "but also to rollback to specific versions of Oxygen OS".

Also please don't quote it entirely but rather use spoiler function for the sake of readability.

Thanks for your understanding.
[OnePlus 6T  Guides, News, & Discussion] Lex177:
With the original cable the same errors. In OS_v9.0.5 "sahara communication failed", in OS_v9.0.13 "firehose getufsinfo failed". I only have 1 usb 2.0. With USB 3.0 as far as I know does not work. Any more ideas?
[OnePlus 6T  Guides, News, & Discussion] SweetwaterBurns:
Are you on a T-Mobile version? Maybe try the . 11 version in the conversion thread and see if that works.
[OnePlus 6T  Guides, News, & Discussion] Lex177:
No, I have CN version.
[OnePlus 6T  Guides, News, & Discussion] :
Is it possible to have Unbrick Tool for 9.0.17 or Stable 10.0?
[OnePlus 6T  Guides, News, & Discussion] Nabil Prodhan:
Urgently needed msm tool 9.0.17 .
[OnePlus 6T  Guides, News, & Discussion] sebastiandg7:
Hi, any news about MsmDownloadTool for Android 10? By the way, how are these tools gathered? Does OnePlus support provides them?
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
Considering OxygenOS 10.0.1 is still in staged rollout phase for this device, I'm not really confident in an msm tool based on it soon.
[OnePlus 6T  Guides, News, & Discussion] sebastiandg7:
I get it. Are these Msm tools build by comunity? Or does 1+ provides them?
[OnePlus 6T  Guides, News, & Discussion] Some_Random_Username:
They're made by OnePlus.
[OnePlus 6T  Guides, News, & Discussion] partcyborg:
They can only be made by OnePlus. Part of the package is a specially signed low level firmware interface (Sahara protocol) that only OnePlus has the keys for. The phone will not accept instructions from anything else
[OnePlus 6T  Guides, News, & Discussion] sachin09:
Can this tool be used to downgrade from android 10 to android 9?