yashsingh1/xdaforums huggingface dataset:
[OnePlus 9] barguybrady:
XDA is Great, and, yet, at the same time: XDA is very challenging.

With so many able to contribute, and the lack of external editing capacity ( unlike SO ),

it's difficult to distill the information.

Okay, Great! There's a TWRP for the OnePlus 9 !

I used TWRP 3.5 and Magisk to root a Lenovo Tab M10, without any need for external input.

The Answer I'm looking for here is: Am I able to install / root / whatever my T-Mo OP 9 with TWRP ?

Does anyone have any definitive solutions ?

Thank You, in Advance, for any assistance !
[OnePlus 9] MrSteelX:
Is your bootloader unlocked? If yes then you could boot to fastboot and fastboot boot twrp.img. You will have your answer then.
[OnePlus 9] barguybrady:
Sadly, No, boot-loader is locked. Never encountered this on both previous OP 6t's.

Hence my confusion. When I walked out of the t-Mo store with my 6t, I had No issues.

I used the wonderful mauronofios tool, to do it All with no troubles.

crash my 6t, forced to take a "9 5g" from t-Mo, and now I am regretting it.

Wondering what has changed, and by whom..? t-Mo change policies, or OnePlus ?

Actually, I've been a t-Mo customer for 16 Years ! First time I've ever had to "Ask Permission" to have my phone, or my SIM unlocked...
[OnePlus 9] nujackk:
You should start a separate thread for all that. Kinda want to keep on topic to make it less confusing for everyone
[OnePlus 9] applyscience:
Has anyone been able to mount a usb drive? ive tried everything and it just looks to not be functional.

strangely enough, i heard TWRP backups are iffy right now but have already restored from one using this release in the past week. happy that works
[OnePlus 9] chinbags:
Just installed it - thanks OP.

Does anyone know if I can jdirtyflash the global rom 11.2.7.7 over the EU rom which is currently on 11.2.7.7 in twrp?

I was originally on global (le2110) but flashed EU via update. Now I want to go back to global.
[OnePlus 9] mattie_49:
Full system everything. User data. ? Did it work
[OnePlus 9] applyscience:
i dont know i have been bricked for 5 days ever since i attempted the lineage release
[OnePlus 9] mattie_49:
Just lineage no kernel no special cam?
[OnePlus 9] applyscience:
nah. just lineage. pretty sure i deal with support again tomorrow. fun...
[OnePlus 9] illusiveairforce:
Need help...

I typed Fastboot boot twrp.img instead of fastboot flash boot twrp.img

And that was to boot_a

So then i tried fastboot flash boot_b twrp.img

It wont load the recovery now. Phone wont boot up unless i

fastboot boot patched11.2.7.7DA.img

I even try to install Magisk directly and it fails.

Can I get some help. Dont even wanna restart my phone.

Thank you

All Good Now..... I Figured It Out!
[OnePlus 9] eni01:
How to fix this
[OnePlus 9] applyscience:
id avoid TWRP if on 11.2.8.8 already. it can boot from fastboot and even install itself as your recovery but it will not mount data. i tried the refresh sizes trick in backup and then the default_password for password to decrypt and nothing. pretty sure twrp mishaps are what bricked my phone last too . thankfully it still boots, just the recovry section is effected

ill try and flash the OTA zip tomorrow. sick of messing with it for now lol
[OnePlus 9] Jessp4046:
Are we still avoiding twrp
[OnePlus 9] mattie_49:
Would def avoid flashing to device. If your gonna use fastboot boot twrp.img through bootloader.
[OnePlus 9] noname122414:
With stock, avoid it.
[OnePlus 9] weeems:
TWRP loads Wipe etc Items but then locks, I cannot select any of them. What should I do, I have LE2125/OnePlus 9 Pro?
[OnePlus 9] Zhono:
Soooo does anyone know how to actually USE it? When you boot into it, you can NOT actually do anything. Touching anything on screen does nothing. You have to force the phone off to reboot out of it.
[OnePlus 9] illusiveairforce:
You did something wrong. Your booting into the wrong slot probably. Sometimes mine does that during flashing.

But TWRP works great. I can go from stock to rom stock without touching the PC. I can do it on the fly.
[OnePlus 9] mattie_49:
Or your trying to use on Android 12. That would explain
[OnePlus 9] TrajanoX3:
any of you using TWRP on oneplus 9 with OxygenOS 12?
[OnePlus 9] TrajanoX3:
how did you install
[OnePlus 9] TrajanoX3:
Chow did you install
[OnePlus 9] captain_howdy:
I was going to try installing TWRP to recovery on my rooted OnePlus 9. I boot to the bootloader first then attempt to boot to my TWRP.img file but I end up with a Qualcomm crash dump. Does anyone know what the cause may be of this?
[OnePlus 9] Z-Blade:
You get a Qualcomm crash dump if you are trying to flash TWRP on Android 12. It has been mentioned a number of times but TWRP does not work on Android 12, it's not supported.
[OnePlus 9] jmadiaga:
seems like the latest iteration of twrp is still not ocmpatible with OS 12.1

if anybody has successfully installed TWRP on oxygen OS12.1 please let me know.

cheers!
[OnePlus 9] TheKnux:
Did you not read above?
[OnePlus 9] TheGhost1951:
Ok guys, I am on TMO OnePlus 9 Pro running stock 11.2.9.9 with TWRP installed and working fine. I will include the links to download the required file for the OP 9 and OP 9 Pro. Be sure to read the instructions fully before trying to install it. I have always found if you follow the steps completely "as written" you will have success. As of right now there is no TWRP for Android 12 but only for Android 11 from these links. If you by happen chance to get it installed on Android 12, you are on your on because there is no support for it until an official version comes out for the A12.

OP 9 Link is

OnePlus 9 (lemonade)

Disclaimer:Team Win strives to provide a quality product. However, it is your decision to install our software on your device. Team Win takes no ...

twrp.me

OP 9 Pro Link is

OnePlus 9 Pro (lemonadep)

Disclaimer:Team Win strives to provide a quality product. However, it is your decision to install our software on your device. Team Win takes no ...

twrp.me

Good Luck,

Ghost
[OnePlus 9] Egyoneman:
Hi,

Excuse me for the novice question.

Can I flash TWRP while on android 11, then use it to flash android 12 custom roms?

Thank you foe your patience.
[OnePlus 9] AtoZ0to9:
No. You should always follow the ROM threads install instructions. TWRP doesn't support A12.
[OnePlus 9] Egyoneman:
Thank you.
[OnePlus 9] TheGhost1951:
What partitions do you select for backup and restore with TWRP?
[OnePlus 9] Otak98:
there is only lemonadeP. all i get is a bricked device. ive tried so many boot.img from different roms, even dumped from payload......read so many XDA threads and stuff on reddit basically anything under the sun and all i could get working until i tried to swap to nameless was derpfest.....only boot.img i could get to flash properly until today......everything bricks my phone and now i cant upgrade back to android 12 on OOS and of course the T-Mobile version blocks local upgrade, I'm not even gonna attempt the conversion tool, ive been rooting phones since i was 14 and never had i had such a problem......let alone from one phone......its stressing me out.......nothing is correct in some instructions. when i did have the derpfest recovery the last time i tried to flash derpfest back and i did everything correct trust me......i did it multiple times and it gave me the exact same error that it wasn't the device it expected.......i couldn't rely on this phone from the start and i still cant even fix it and put it back to when it was working somewhat properly. this whole experience has inspired me to start learning how to make my own rom......however long it takes i will do it and then i will know wtf is what and how its all done. sorry i ended up ranting a bit.....i dont blame yall......just upset about the direction oneplus took and the fact i bought another branded phone when i promised myself i never would again and this just set it in stone........ its like this phone has a mind of its own

im pretty sure this is out of order a bit so i hope it makes sense
[OnePlus 9] TheGhost1951:
What do you want to end up with? And what branded phone do you have, and have you at any point flashed the India msm download tool?
[OnePlus 9] Otak98:
Well at first I was trying to get nameless AOSP but right now anything that's stable, derpfest isn't being maintained so I decided to try to switch (should've stayed while I was ahead) and no I haven't downloaded that one,what's the purpose of that one, Ive just been using the T-Mobile msm tool because that's the variant I have (got the 9 for $350 it roped me in), I have the global stuff downloaded but I don't have the indian one. I'd honestly just go get another phone if I could and just my luck because I have the s9+ from att and yeah no bootloader unlock XD also what is that FC counter at the bottom in bootloader/fastboot mode it's now like 120 something
[OnePlus 9] TheGhost1951:
What ever you do, DO NOT I REPEAT DO NOT use the India MSM tool. It will change your phone variant to India. That happen to mine and now trying to get it back to TMO variant.....
[OnePlus 9] Otak98:
Ah, yeah thats also why I'm not messing with the convert method....heard some horror stories about it going wrong even while following the instructions to every last detail. I hate this phone with a passion and it's my first OnePlus, been wanting one for a long time and finally did and now I regret it....maybe when TWRP works I won't lol. I think that's just gonna be my savior unless my phone is just cursed lol. If anyone has any advice or anything that might help I'm open to it ofc
[OnePlus 9] TheGhost1951:
If you stay on A11 you can have twrp.....very simple and even custom fonts and custom bootanimation. This is my first OnePlus, long time Samsung user. But Samsung locks down the bootloader and that means no customization! I love this oneplus.... It has great potential.... The original TMO MSM tool is ok to use if you try custom roms and need to go back to TMO. I am waiting on a special script for the A12 before I upgrade to it. Meanwhile it is 11.2.9.9 for me with custom fonts and custom bootanimation! 👍
[OnePlus 9] Otak98:
Yeah every time I flash any boot.img now it just bricks, it'll just shut off and I can only get into bootloader mode and EDL ofc. Ive tried the payload dumper as well, no custom recovery loads on it at all anymore, I started recording everything I do on it so I can look back on it, I can copy everything I did and get completely different results, but as I said in my first reply is that I can't find "lemonade" TWRP, only "lemonadep" and weird thing about the T-Mobile variant I believe it's "lemonadet". At least I backed up the modem persist files and other stuff on derpfest. I have the s9+ and it's such a kickin' phone but stock is outdated and a bit glitchy and yeah bootloader is locked for good basically otherwise I'd still be using it lol but the notification slider is what sells me, I want to love this phone but it's caused me so much stress and inconvenience it's just hard to rn, oh and it doesn't matter if I do "fastboot flash boot" or just "fastboot boot"

Same issue Ive even tried flashing to both slots with every boot.img I've tried, I've tried many different techniques to no prevail the one time I got derpfest was basically a miracle lol
[OnePlus 9] TheGhost1951:
What was your original stock firmware? I see where you have been messing with custom roms but what did your phone come with.
[OnePlus 9] Otak98:
So my first original attempts I was on A12 and then after attempting to switch to nameless from derpfest I had to MSM (not the first time I did) and I was back on stock and I updated my phone and it said on the update notes that it was getting upgraded to Android 12 but after it was done it still on the latest A11(what I've been working with since my first comment). I did get the phone the day it came out for T-Mobile so it had A11 OTB. I attached a file of what the update menu looks like, I edited the comment.
[OnePlus 9] TheGhost1951:
I know that my questions may seem pointless at times, but they are what I need to understand what needs to be done to correct your situation. I stay away from custom roms, TMO updates may be slow but they are a little more refined. Not always bug free but better. I have seen countless issues from people trying to use custom roms. My next questions are, is phone operable right now, functioning normally? If so, what rom are you running? As for the "FC" I would need to Bring search it...
[OnePlus 9] Otak98:
Oh I completely understand, I'm actually on stock 11.2.2.2 and it's ok, I've always had weird connectivity issues and fingerprint reader is a lil wonky, texts either don't send when they say the do, or when I send a text it'll change the words or remove stuff ,add stuff or go back to point when I was editing it while it's in the process of sending, people could call me and it'll just ring on their end but not mine, alarms won't actually sound off just vibrate or vice versa or neither or continue to vibrate in random patterns after I snoozed or dismiss or delete it, I have to power off the phone and wait 5 seconds for the vibration to go away, the power button will open the camera on just one key press with case on or off and even disable that feature. The issues follow except most of them while I was derpfest, I know in some of my replies I'm probably side tracking a bit lol. Also if Google basically didn't come with anything idk if bing will for the FC counter, unless I didn't search right/ hard enough...it's a flash counter. Mines like 120 something lol also my screen gets stuck on apps like I can't go home or touch screen goes unresponsive, all theses issues basically came with the phone.
[OnePlus 9] TheGhost1951:
My flash counter FC is 146, I have been a little more busy than you! 😂 I would start off with doing a factory reset to start fresh. I would then stay with TMO and update to 11.2.9.9, then download auto phone and install Magisk 25.2, download TWRP for OP 9 and put it in you platform tools folder, unzipped of course. Then reboot to bootloader, fastboot boot (twrp img or what ever the name is), in twrp go to advance and "flash current twrp", go back to twrp home, tap install, tap on the Magisk app, after that is installed, reboot system....you should be totally stable now. With root
[OnePlus 9] Otak98:
Not sure if I can get to it today but I can try that again, what do you mean auto phone?? And so apparently it's the same TWRP.img for the OP9 and OP9P? I'm just wondering if there's some link I'm just completely blind to or something because I have the file for the OP9P. Also you mean like even after I MSM do a factory reset to be on the safe side or does it fix something that the MSM doesn't do ? Also my counter is 128 I'm not 100% sure how accurate the number is cuz I could flash once and it go up 4 times or 2 or 1 or stay the same but definitely higher number is still more times it's been flashed but in my experience doesn't seem to be accurate. Could be based on what your flashing and what it's doing on it's side possibly? Just a random thought lol and also have you tried convert to global and do you have your modem persist files, I can't remember the names? Idk what you've tried just wonder if that might help since you converted to indian
[OnePlus 9] TheGhost1951:
Not auto phone, on to phone, auto correct from keyboard. And you need the Twrp for the OP 9 for the 9+.....https://twrp.me/oneplus/oneplus9.html read the install instructions at that site...
[OnePlus 9] Otak98:
Both links do this, I'm not sure what I'm confused about lol, when I tried the first times with TWRP it would load the TWRP screen and then crash to Qualcomm crashdump mode, I could never get it to boot properly. Also actually confused about this but do I have to have the TWRP file on my phone and then go to my computer and boot it from fastboot? Is that what I'm missing also?? I'm not sure if I've tried that, I only started recording the stuff I did after derpfest lol. Yup it does have to.....I feel so dumb, I can't believe I missed that lol, I work nightshift and I got a kid on the way, I felt more scatter brain lately 😩
[OnePlus 9] TheGhost1951:
Once factory reset and set phone up.....update all the way to 11.2.9.9, adb reboot to bootloader, then fastboot boot (twrp img file) that temporarily boots you into twrp, then tap on advanced and "flash current"...then back to twrp home screen and tap install the Magisk apk., Reboot to system and you are done with root....once booted open Magisk app and it will finish with a prompt for you to install the Magisk app
[OnePlus 9] robmau:
Does TWRP work with OxygenOS 12 yet? I read somewhere it doesnt work but that was in June.
[OnePlus 9] TheGhost1951:
Hit and miss with different devices
[OnePlus 9] robmau:
With oneplus 9 LE2115? (N/A unlocked) and Android 12 OOS12?
[OnePlus 9] TheGhost1951:
Didn't work on mine LE2127 OP 9 Pro TMO
[OnePlus 9] TheGhost1951:
Take the step and try... In fastboot boot twrp.img and see how it reacts before flashing it
[OnePlus 9] TheGhost1951:
Twrp worked on my op9p A12 I didn't have any lock screen security set up when I installed twrp and it was working
[OnePlus 9] Otak98:
Nothing seems to work anymore, it's very hit and miss and it's mainly misses for me. I can have it in the exact same condition (tried different methods also) follow everything to a T and poof fails.....it was a fluke when I got nameless......so I'm gonna stop messing with my phone for the sake of my sanity. I'm just gonna wait until there is a for sure stable working TWRP. I just don't have the time and patience anymore and I'm just gonna hope this phone doesn't crap out before that
[OnePlus 9] TheGhost1951:
I got TWRP to work on my OP9P TMO stock A12 firmware with no lock screen password, pin, pattern etc.... And it worked fine. Never got around to setting up security for lock screen cause I went back to stock A11...
[OnePlus 9] Otak98:
I never set a lock unless I'm for using it and I have the OP9 tmo not the pro version......TWRP only has the OP9P img and it has never worked for me, I might get a quick TWRP screen but then it cuts off and never shows up again, thought it might be that screen lock whatever issue but it's not, just black screen and then reboots or shuts off
[OnePlus 9] TheGhost1951:
Did you look at this?

OnePlus 9 (lemonade)

Disclaimer:Team Win strives to provide a quality product. However, it is your decision to install our software on your device. Team Win takes no ...

twrp.me
[OnePlus 9] Otak98:
Yes, many many times 🥲

I just read everything out loud to someone and yeah I follow everything, I go to download the TWRP img it always brings me to the OP9P version no matter how i work around the website, it never fails. I completely follow the instructions and when I get to temporarily booting the image is where is goes wrong everytime, I have never been able to see the menu for TWRP to further install it onto the device. I could only get the recovery image from nameless to work, I've tried "Frankenstein" methods with every recovery image I could find every rom I could find, I never did any conversion or anything that basically caries over to another room if that makes sense. This fastbootd mode....idk what's up with that, I've found said mode but it's not the one their asking for wether it's stock or from the nameless recovery, it has never worked with adb at all, I know my drivers are good. I went through a lot get those to work properly. I know it probably seems like idk what I'm doing but I do, I just have some sort of weird curse I guess lol. I ALWAYS get the weird glitches.....for example, my wife has the same phone.....from the start her phone has always been more stable then mine, even straight out of the box 🤷

This whole phone scenario has thrown me for a loop......on top of my constant lack of sleep ha ha I'm know I'm not the only one lol.
[OnePlus 9] TheGhost1951:
When you are in fastboot mode, not fastbootd mode, and use fastboot boot "twrp img name.img" what happens?
[OnePlus 9] Otak98:
If you want a screenshot of what happened I'll have to grab from my computer (when I have to time to hop on it....sad 😢 lol) I actually recorded what I did so I could look back and review and idr off the top of my head what the output was on the computer

The whole process on the computer is normal and goes without error, my phone then restarts and then it shuts off just like phones would when you pull the battery while their still on and then does either that or reboots, it used to show the TWRP logo screen during like the first 15 tries or so and then after I got nameless to work and ran that for a few months and basically went backwards after that my phone just won't take anything not even A12, the update no longer shows on OTA (I know that was a little more then you asked, I think I might run on too much lol)
[OnePlus 9] TheGhost1951:
What you are saying when you fastboot boot twrp it doesn't boot into twrp? Do me and you a favor and just answer the question.🙂 Don't need to elaborate, it confuses my simple mind....🤣 First things first....
[OnePlus 9] Otak98:
No. Lol sorry
[OnePlus 9] TheGhost1951:
And you are currently on stock TMO 11.2.2.2...?
[OnePlus 9] Otak98:
Yeah. It's been the most stable lol
[OnePlus 9] TheGhost1951:
And going to settings/system/update does not work? Or what error do you get? Should be able to update to 11.2.9.9... and if successful, stop any further updates for now...and when trying to boot twrp, what happens?
[OnePlus 9] Otak98:
So I can update to 11.2.9.9 and that's it, no other updates come in

After trying to boot TWRP it has the same error
[OnePlus 9] TheGhost1951:
No, you can update all the way to A12 C.20 on TMO..... You have more possibilities staying on 11.2.9.9....
[OnePlus 9] Otak98:
If I update to the latest version of 11 that's all I get. I can't update to 12, it won't show another update anymore like it used to. I've seen other posts with this issue as well and if they got 12 on it the screen would stop working and boot loop, I'm just gonna avoid that lol. But I'm definitely staying on the version I'm on right now.
[OnePlus 9] TheGhost1951:
Apparently the custom rom flashed something somewhere on your phone that could be causing the problem you are having. I was told to use the Indian MSM Tool to recover my phone when I crashed it. Being that it was a TMO it is now recognized as an Indian variant. I can not use a stock TMO MSM, I have to use a mode one. What firmware version are you on now? 11.2.9.9 I hope....if so, how would you like custom fonts and boot animations?
[OnePlus 9] Otak98:
Interesting. I'll take a look around 11.2.2.2 is the version I'm on. I don't really care about boot animations and custom fonts rn, just a stable and rooted experience, something I have control of.....this TMO 11.2.2.2 bloated version is so annoying but it's been the most stable right now.
[OnePlus 9] TheGhost1951:
have you tried to update to 11.2.9.9.....you can debloate with ADB.
[OnePlus 9] TheGhost1951:
If you can't update, attached is a later version 11.2.8.8 for TMO MSM Tool.....
[OnePlus 9] TheGhost1951:
File is not posting, I will need to work on a link to download the file..be patient..

Google Drive: Sign-in
[OnePlus 9] rizzmughal:
All those things u have heard are about after conversion to global hard bricked and then op 9 pro india msm flashed then these problem occurs
[OnePlus 9] Otak98:
So I've decided to ditch this phone.....how's the OP 8t with custom roms, I haven't done much research but I heard some good things. This phone is just too much for me right now, when I get another phone I might play around with it more since it won't be my daily driver anymore lol
[OnePlus 9] zamanto:
Hello my op9 is indian variant which one i should use i only see eu and americans
[OnePlus 9] YEABOIIIII:
Does anyone know if this works for oxygenOS 13, I can't test it because if I have to msm it will take hours to get back to oos 13

Link
[OnePlus 9] jmadiaga:
it works on OOS 13 (global). for me anyway.

just use the twrp-installer-3.7.0-12.1-7-lemonadep.zip

also, it does not take hours to get back to OOS 13 coming from MSM. bec i'm sure that by now, you have downloaded all the necessary zip files to get back to OOS 13.