yashsingh1/xdaforums huggingface dataset:
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] lilbrat:
Whoa... Go here and jump down to the 3rd post... https://xdaforums.com/oneplus-6t/how-to/oos-oneplus-6t-stable-oos-guide-thread-t4046025
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] dharkness:
do not have it, i just have the phone rooted with magisk and since vanced is not updated on magisk i decided to install twrp.

followed since i do not need the previous step, it booted to twrp switched slot and booted to system. it works now ^_^ thank you

Open Magisk Manager

[If you have TWRP, go in Modules menu, clic on ‘+’ and choose latest TWRP installer zip file on your phone. Don’t use Retention A/B Script Magisk Module I had issues with it] [then stay in Magisk Manager and do the next step]

On main screen of the app clic on ‘install’ next to Magisk paragraph

On the pop up menu confirm ’Install’

On the next pop up menu clic on the last entry: install on inactive slot (after OTA update)
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] darfri:
Theres an old bug around. I can backup data partition but restore gives me an error around 40% with red text. It contained a word "fork". I cannot revisit it as it would mean factory reset. I have seen this error few times over a year but cant examine it as I need a running and set up device. I think it might be an issue with filenames generated by some app but wouldn't there be an error correction around in twrp?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] jules16v:
I think "twrp-3.3.1-31-fajita-Q-mauronofrio.img" no longer works.

Got a notification this morning that there was a new OOS update for my phone. I had a bad feeling about this, and indeed, it turned out to be a world of $#!+. It seems that root, TWRP and OOS in combination are a clustertruck. This has lost me half a work day.

I got the OS update from the OnePlus website and wanted to flash it from my (then working) TWRP, but my finger accidentally touched the wrong line on the screen which re-installed TWRP, mangling EVERYTHING in its way. In the end, I was caught in a bootloader-bootloop and was forced to resort to using the unbrick tool. This got the system up and running, but my unlocked bootloader, TWRP and root are all gone (and all data, thank you).

I was able to unlock the bootloader again, but when I try to boot the TWRP img my phone reboots and gets stuck at the monochrome OnePlus-Logo with the "powered by Android" caption. I can then only hold the power button for 10 seconds which brings the stock system back up. I tried several official and unofficial twrp.imgs to no avail.

Has anyone else had this problem and can anyone help?

OnePlus6T

OxygenOS 10.3.2, build ONEPLUS A6013_41_200222
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
I can confirm that TWRP 3.3.1-32 (and also 31) is perfectly working with the latest 10.3.2 update. Always remember to follow the guides in the first page and keep using unofficial builds
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] void4ever:
Reflashing TWRP will not cause the issues you're speaking of. It "will" unroot the phone (overwriting Magisk) causing the OS not to boot properly. But you simply reflash Magisk again to resolve that issue. If you paniced and shut the phone off while it was in the middle of reflashing TWRP i suppose that might cause an issue.

You haven't mentioned what commands your using to try and side load TWRP, but if you're using anything other than whats in the first post, you're doing it wrong. You also mention trying a bunch of other TWRP images, again if it didn't come from the first post, you're doing it wrong.

Check the install guide and make sure you're following the directions exactly. A quick and dirty version if you truly are unlocked atm would be.

1. Boot the phone to fastboot mode

2. plug it into the PC

3. run "fastboot boot recoveryimgfilename.img" in command line (in this case there's no reason to keep using .31, download .32

This will get you to TWRP where you can flash whatever you want. I'd do the OS you downloaded from OnePlus (Make sure it's the FULL OS, which is around 1.8 gig) .

Before rebooting, flash the TWRP zip (THE ZIP HERE NOT THE IMG), then reboot to recovery (to confirm you still have recovery), then flash Magisk, and you're golden.

void4ever
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] jules16v:
Hi, and thanks for your input.

Let's, for simplicitiy's sake, forget what started the ordeal. It won't help, and I gladly accept it as my mistake.

I managed to recover the device to a stock state with standard, non-rooted OOS and stock bootloader/recovery. It boots up and all is well.

I had activated developer options and unlocked the bootloader with "fastboot oem unlock". The device still boots. I restarted into the bootloader, and that is where things get wonky - I have followed all instructions to the letter and the behavious of the phone is as I previously described.

- "fastboot devices" gives me the UID of my device

- "fastboot boot twrp-3.3.1-32-fajita-Q-mauronofrio.img" yields the following output:

downloading 'boot.img'...

OKAY [ 0.742s]

booting...

OKAY [ 0.075s]

finished. total time: 0.821s

The device DOES NOT boot into TWRP, instead, it just displays a black screen with the OnePlus-logo and "Fastboot Mode" caption. (No matter what boot image I use.) I can only restart by holding down the power button for ten seconds, after which the phone boots up normally. I can't come close to the option of sideloading anything in TWRP.

(EDIT: if I do not restart I get the following)

- "fastboot devices" still brings up the UID

- running the same command as above yields this:

downloading 'boot.img'...

OKAY [ 0.746s]

booting...

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

finished. total time: 0.799s

I recall having similar troubles after the first OTA Q-Update, but my memory could be playing tricks on me here.

Any help on how to regain TWRP and root is gladly appreciated.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] jamescable:
So, is the unofficial installer unified? Meaning can you flash it on pie twrp or A10 twrp and keep your CURRENT version? Like if I am on pie and pie twrp, does flashing the lastest installer keep pie twrp or does it update to A10 twrp?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] rippledrums:
Yes it's unified, detects your Android version and updates accordingly :)
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] osm0sis:
To be accurate, no, it doesn't detect or do anything special dependent on Android version, it just adds the TWRP ramdisk to whatever boot partition is there, keeping all else the same. ;)
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] dumarcon:
I'm having the same issue. Booting the TWRP.img got stuck at Fastboot Mode screen.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] void4ever:
[MENTION=10612051]jules16v[/MENTION] [MENTION=8742154]dumarcon[/MENTION]

Did you guys check the MD5 of the IMG file to make sure it wasn't damaged in transit?

Void4ever
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Dr. Mario:
It took a while on my OnePlus 6T to finally boot on TWRP fastboot bootable image. It was stuck on Fastboot splash screen - all I had to do was being patient, and it will actually boot, about a minute if I remembered right.

I have done several updates straight off the fresh reinstallation of the OxygenOS (to obtain latest drivers and UEFI bootloader that the LineageOS 17 ROM requires) - that TWRP quirk no longer scare me because of the way kernel is being loaded (it's loaded with startup scripts too which slow things down).
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] jules16v:
This has solved my problem, although it's not reproducible.

I booted from "twrp-3.3.1-32-fajita-Q-mauronofrio.img" and indeed, it took three tries with about five Minutes of waiting, after which I rebooted the hard way (hold power button for 10 seconds). On the fourth try it worked.

Insert a sigh of relief here, although I'm now officially done with OxygenOS which has been nothing but grief everytime an update came around. I am playing my hope on LineageOS.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Dr. Mario:
Yeah. UEFI Fastboot payload is a bit rough around the edge. It is certainly annoying.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] void4ever:
Glad to hear you're working now [MENTION=10612051]jules16v[/MENTION].

Thats so odd you guys are seeing this issue, I've never once had to wait more than the time it takes to issue the command. I wonder Dr. have you also installed custom roms? I wonder if they are overwriting something or flipping some bit that shouldn't be flipped somewhere!

Void4ever
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
So, if you on your device have android pie you should use pie .img and flash the installer, if you have android Q you have to boot the Q .img and flash the installer. The .img are 2, one for each android version supported, the installer is only one that works on Pie and also on Q. Now some initial Android Q stock roms have some problems with fastboot boot command, i want to reccomend to update it to latest versions and then flash the twrp. If you updated your device from pie to Q with fastboot roms you did a ****, flash again from local update the same rom you already have and you will never have problems. The TWRP is perfectly working, i tested it a bit of times and all times a new Stock ROM is released i flash the new rom in TWRP and then i check if all is working. [MENTION=3494629]void4ever[/MENTION] [MENTION=9972849]Dr. Mario[/MENTION] [MENTION=8742154]dumarcon[/MENTION] [MENTION=3604271]jamescable[/MENTION] [MENTION=10612051]jules16v[/MENTION]
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
So, if you on your device have android pie you should use pie .img and flash the installer, if you have android Q you have to boot the Q .img and flash the installer. The .img are 2, one for each android version supported, the installer is only one that works on Pie and also on Q. Now some initial Android Q stock roms have some problems with fastboot boot command, i want to reccomend to update it to latest versions and then flash the twrp. If you updated your device from pie to Q with fastboot roms you did a ****, flash again from local update the same rom you already have and you will never have problems. The TWRP is perfectly working, i tested it a bit of times and all times a new Stock ROM is released i flash the new rom in TWRP and then i check if all is working.
[MENTION=3494629]void4ever[/MENTION] [MENTION=9972849]Dr. Mario[/MENTION] [MENTION=8742154]dumarcon[/MENTION] [MENTION=3604271]jamescable[/MENTION] [MENTION=10612051]jules16v[/MENTION]
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Dr. Mario:
Of course, yes. Currently running crDroid 6.3 (based off LineageOS 17.1 Android 10 build, of course), atop the International version of OxygenOS 10.3.1.

EDITED: Whenever you install the operating system, like LineageOS, crDroid and / or original stock ROM, it automatically switch the slots, which I recommend to install same version of OxygenOS ROM, and reboot back to TWRP (much easier to fastboot TWRP at this point) if you want to proceed and install custom ROM, then install your favorite ROM in both slots once again, this time you can install TWRP. After rebooting back to TWRP, do factory reset (I recommend to backup before you have even begun so you don't lose anything) and data wipe. Reboot once again back into TWRP, you can install whatever you want, it should work fine at this point. It's also the SSD encryption that's opening the can of worms, as to speak.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] spider451:
Try the all in one tool by manofrio. Then flash the installer TWRP zip, reboot to recovery then flash Magisk.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Causical:
So is that "you did a ****"?...

or maybe it's "you did a ****"?...

Or perhaps "you did a ****!"

... ****, I don't know
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] jules16v:
What an honor to receive a message from you! :)

Point taken, and it is clear from your writeup that different ROMs require different .imgs - however, I can speak only for myself, I resorted to other .imgs only after the respective one failed to work for me in the usual manner.

Anyway, a huge gob of patience seems to be the solution. I say a hearfealt thanks again for your support!
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] kjslabber:
How do I backup present twrp IMG?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] darfri:
There is no point doing it, just download your version and it will be identical
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] kjslabber:
I have a themed version of twrp I would like to keep.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] darfri:
I would prefer updated version to the themed one in your situation
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Pjstaab:
I'm stuck at the fastboot mode screen too when trying to boot into 31 or 32. I've let it sit for at least 10 minutes without any change. Coming from a recent flash of OOS 10.3.1.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
you should use the right version of the twrp, if you are on android 9 stock you have to use pie .img, if you are on android 10 stock use Q .img
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Pjstaab:
Ugh, I feel like an idiot now. I was thinking 10 was Pie, not Q. Thanks for putting up with my idiocy.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] francescotrevisan3:
Hi, I've just flashed the "TWRP 3.3.1-32 Q Unofficial by mauronofrio" using the method "Install Recovery Ramdisk" in my Oneplus 6t with OOS 10.3.2 stock, it went all fine. Now I want to install magisk and the omega kernel, can someone help me? I have to reboot to twrp and flash magisk 20.3 or 19.4? I don't want soft bricks. Thank you guys
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] phaino00:
Reboot to TWRP

Install Magisk 20.3 zip

Reboot system
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] francescotrevisan3:
Ok thanks, and to install the omega kernel when I have to flash it? After installing magisk or before?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] phaino00:
Flash kernel after flashing Magisk.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] francescotrevisan3:
I flashed magisk 20.3 and the latest version of omega kernel and it went all fine. Thank you for the help
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Causical:
Possibility to port something like this over? Maybe eventually... post apocalypse recommendably

https://www.xda-developers.com/unofficial-twrp-enables-true-dual-boot-oneplus-7-pro-5g/
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] DaQuickZcoper:
decrypt password

I installed evolution x rom for android 10 and i wanted to go to recovery. it asks for password for decrypt what is the password?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] OhioYJ:
It's what ever your pin/password is for your lockscreen. If that doesn't work, I would assume it's because you are using an old version of TWRP, or during the install of a custom ROM you did not format data. (Backup your data first.)

My Lineage install instructions but most AOSP ROMs would be the same / similar. (Notice the format data step, and the backup step, as format data will wipe the phone)
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] dwardo:
Hello [MENTION=4712355]mauronofrio[/MENTION],

I have a small suggestion for TWRP recovery

Could you add a :

* "reboot to recovery" button next to "reboot to system" button that is available when a zip is finished flashing...

* "reboot to recovery" checkbox option in zip flashing "activity" (like the reboot to system one)

I ask because since A/B phones we need to reboot to recovery (opengapps, magisk) as often as we need reboot to system after flashing a zip :) !

Regards and thanks for TWRP for Fajita
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
Maybe i will discuss about this in the TWRP group
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] dwardo:
I meant reboot to recovery (will edit the original post to correct it) not bootloader ...
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Araa01:
DELETE
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mchlbenner:
If you want to install twrp permanently do use the twrp installer or do flash the twrp img?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] DarkSJ1998:
Flashing the TWRP *.img just puts it into boot partition, for temporary operations. TWRP installer is used to flash TWRP permanently (until you flash a ROM again).

Make sure to flash Magisk after TWRP installer *.zip file as you'll be unrooted again.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Striatum_bdr:
To be more accurate, .img file isn't meant to be flashed only to be temporarily booted.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] phenodinw971:
How to

Where is "wipe cache" on TWRP?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] phenodinw971:
What is the best installation ?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] OhioYJ:
There is no cache partition anymore. So no need to do this in recovery. Don't.

Still booting the image temporarily using fastboot, then flashing the ZIP file. Never flash the img file.

Funk Wizard has an excellent guide for everything you need to know and starting out on installing and unlocking the 6T, including backing up the EFS partition.

My Installing Lineage Guide also covers installing TWRP in section 2.

Both those guides about use the "old install method" from the First Post of this thread, which I used just yesterday (it still works fine). However nothing is to say you can't use the New Method.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] phenodinw971:
Thank you so much
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Mohit31:
Anyone here unlocked, installed TWRP and custom rom using Mac? I don't have access to windows and there are no guide for Mac users. Had rooted my previous OPT, so have fair idea of root and stuff. But op6t feels little complicated. So would like to have enough information before I go ahead with the process. I don't want to have a non working phone in this lockdown ?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] darfri:
It's better to follow the pc guides

You need a VirtualBox and free win10 image from M$
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Mohit31:
Thanks...just one more question (a bit off topic)

Assuming you are using a custom rom...do you think that the custom rom provide better performance than the stock oxygen Os?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] darfri:
If you get the one without gapps bloat and gsf it sure is lighter. And the drivers are good. But 6t has hell of a performance anyway. I haven't got any lag stuff never. I think this question morphs more in to battery drain question
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Termehansen:
Totally new to OP 6T, but long time XDA user and custom roms on other phones... Just flashed the twrp.img on the boot partition and now it only boots to twrp.

Don't get the partitions here. what is this A and B, and how can I get my system to boot again?

---------- Post added at 17:58 ---------- Previous post was at 17:58 ----------

Totally new to OP 6T, but long time XDA user and custom roms on other phones... Just flashed the twrp.img on the boot partition and now it only boots to twrp.

Don't get the partitions here. what is this A and B, and how can I get my system to boot again?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mitchst2:
You only use the image to boot recovery from bootloader. Once booted you flash the installer zip not the image.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Termehansen:
Yes got that now - the hard way. So how do I recover to a working boot image or phone at all?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mitchst2:
Did you try flashing the installer zip after flashing the image?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Termehansen:
Thank you [MENTION=4333421]mitchst2[/MENTION], that solved it!

Now I need to read up somewhere on how this partition system is on OP6T and how the things work (compared to the systems with /data, /boot, /recovery, /system that I know from many other phones). Do you have a suggestion where to read and learn?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mitchst2:
If you want to install a custom ROM I used this guide:

https://xdaforums.com/oneplus-6t/how-to/guide-installing-lineage-t4075955

Had issues following ROM instructions and had to flash a fastboot ROM to fix. Guide above worked for me with different ROM.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Alecjasonn:
Decryption doesn't work on the latest beta...
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
Sometimes someone come here to.say that the twrp is not working, then i test it personally and it works i have to test it also this time?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] :
No need. Several People here can confirm that Decryption is indeed working fine. No issues at all.

---------- Post added at 11:50 AM ---------- Previous post was at 11:50 AM ----------

What TWRP Version are you using.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Dimcode:
Stuck at bootloader / fastboot

Hi mauronofrio, appreciate your work :)

Finally decided to root my device but I think I messed up by doing

fastboot flash boot twrp-3.3.1-28-fajita-Pie-mauronofrio.img

. I have tried to flash another image:

- twrp-3.3.1-31-fajita-Pie-mauronofrio.img

- twrp-3.3.1-32-fajita-Pie-mauronofrio.img

- Stock 9.0.5

- Stock 9.06

- twrp-3.3.1-1-fajita.img from TWRP itself

But I still stuck at "bootloader unlocked" screen and stuck at "Fastboot mode" when trying to boot those up. Any help would be appreciated.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mchlbenner:
It should have been.

Fastboot boot twrp.img.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Dimcode:
Yes, that's the first thing I did but won't boot to TWRP (stuck on "Fastboot mode" screen). Then I foolishly do one with `flash`

---------- Post added at 11:32 PM ---------- Previous post was at 11:11 PM ----------

Oh boi, managed to boot normally after wiping the data (lock and unlocking bootloader :( ) but now back to square one. I can't find a working TWRP image to boot into. Always gets stuck.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mchlbenner:
Keep in mind you don't flash the IMG.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Dimcode:
Yep noted. Any idea for the TWRP problem?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mchlbenner:
Have used this code.

Fastboot boot twrp.img?

Are you on Android 10 if so you can't boot twrp.

You need to be on Android 9.

When I got this phone it was on 10 I downgraded to 9 and did all the steps and it worked perfectly good.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Dimcode:
Alright this is epic. It was my ignorance all along, I keep thinking the latest model was P instead of Q. So I boot the Q version and it works right away. Downloaded latest magisk and flash it without problem. Now it's rooted :) thank you so much
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] DarkSJ1998:
Here's what I've observed, Decryption doesn't work in one case, when the device is rebooted to recovery & there's a slot change, then decryption doesn't work. One boot into OxygenOS (or OS maybe?) is needed to get Decryption working.

Example:-

1. Boot into TWRP & flash OOS zip.

2. Flash TWRP installer zip.

3. Reboot to Recovery (to switch slots so that Magisk is flashed on the new active partition & not the old one).

At step 3, when TWRP is booted again into other slot, Decryption is sort of broken, atleast for me. One reboot into the OS solves it & TWRP can decrypt /data again.

I'm sure it's NOT a bug/issue & there's a technical explanation for this behaviour.