Database Info

After update, flashed twrp, now booting straight into twrp

So today my new One Plus 6 arrived. I tested it out for a bit made sure everything seemed to be working ok.
Then I unlocked bootloader, flashed twrp, magisk, all without issue. (I followed a guide I found on google) While setting everything up, I noticed that there was an update avaliable. So I installed that and got a message that the update will remove root. I thought "ok, i'll just have to do that again after. Update installed, rebooted device to recovery and realize TWRP is also gone after the update. So then I rebooted again to the bootloader and do fastboot devices command on my pc. Phone is there. Next I do the fastboot flash boot twrp.img command.
Sending.. Writing.. Finished... But I was still on the bootloader on the phone. I tried it a couple more times with no result. Restarted the phone only to boot into TWRP now. I thought to myself "hmm I'm not sure that's what's supposed to happen" but I continued to flash twrp.zip anyway. Rebooted the device.. TWRP booted again. Tried rebooting a couple more times with the same result.
Now, maybe this is where I messed things up more seriously. I'll also mention I foolishly didn't perform a backup on TWRP before doing all this. Not sure what to do, I flashed magisk as well. And I tried rebooting system, then when that didn't work I think I rebooted "slot B' for some reason.... After that it would only show the oneplus boot animation for a seemingly indefinite period of time.
I found I could get int the bootloader menu by holding vol up and power. Tried flashing TWRP, seemed to work on my computer's end but didn't boot recovery on phone. I rebooted into recovery from bootloader menu, brought me to endless oneplus boot animation again. Selecting start on the boot loader booted to TWRP. From there I rebooted back to slot A. Now it boots straight into TWRP.
I'm not sure what went wrong. I've rooted, installed various roms, etc on previous devices. Never had any issues before. But as I'm sure you can tell I don't really know what I'm doing. Does anyone have any advice? Thanks.

Your not supposed to fastboot flash the twrp, youre supposed to fastboot boot it. Just reflash stock boot.img and you'll be good

usernameisausername said:
I'm not sure what went wrong. I've rooted, installed various roms, etc on previous devices. Never had any issues before. But as I'm sure you can tell I don't really know what I'm doing. Does anyone have any advice? Thanks.
Click to expand...
Click to collapse
A number of things work differently on this phone. Don't assume any of your previous knowledge transfers over. There is a steep learning curve.
Stay away from random guides on Google. There are reliable guides here that, if you follow them to the letter, will keep you out of trouble.

fastboot flash boot [.IMG]
Is the issue. Should be
fastboot boot [.IMG]
On www.twrp.me/Devices you'll find the OnePlus 6 plus a corresponding how-to, directly from the source.
Your best bet:
1. Download the full ROM zip from either OnePlus directly or one of the links here on XDA.
2. Download latest TWRP files from twrp.me
3. fastboot boot [.IMG]
4. If in TWRP, connect to your PC and send the ROM over to your phone (MTP should work I think. Else, just ADB push it)
5. Flash the ROM in TWRP as you would flash any other ROM.
6. Should work, your system is now back to stock (also recovery). Let it boot once to be sure and then retry magisk but with the right fastboot commands.
To flash TWRP permanently, move the installer.zip you find on TWRP.me to your phone, fastboot boot the .IMG and flash the installer.zip in recovery.
Let me know if it worked

schwarzerfleck said:
4. If in TWRP, connect to your PC and send the ROM over to your phone (MTP should work I think. Else, just ADB push it))
Click to expand...
Click to collapse
MTP is disabled on most versions of twrp including official. There is an unofficial version with MTP working though it's a bit wonky.

iElvis said:
MTP is disabled on most versions of twrp including official. There is an unofficial version with MTP working though it's a bit wonky.
Click to expand...
Click to collapse
Yeah that's why I suggested the ADB push

schwarzerfleck said:
Yeah that's why I suggested the ADB push
Click to expand...
Click to collapse
So I'm having the same issue as OP currently and am somewhat a noob to this. I'm stuck booting into recovery, how do I adb push to the phone? its not showing up in adb devices at all

Eilermoon said:
So I'm having the same issue as OP currently and am somewhat a noob to this. I'm stuck booting into recovery, how do I adb push to the phone? its not showing up in adb devices at all
Click to expand...
Click to collapse
If you have USB debugging enabled, it's probably a driver problem. Windows 10 has issue with driver signatures and there's a setting that needs to be disabled. Do a search as it's been discussed (I use a Mac so I'm not certain what).

iElvis said:
If you have USB debugging enabled, it's probably a driver problem. Windows 10 has issue with driver signatures and there's a setting that needs to be disabled. Do a search as it's been discussed (I use a Mac so I'm not certain what).
Click to expand...
Click to collapse
Thanks for the info! If anyone has a source for this, that'd be awesome

Cannot boot my OnePlus 6! Please help!

Hey guys!
So, my OnePlus 6 won't boot! My problems started when I tried to flash MIUI 10 port. Idk what I did, and appeared to me "your device is corrupted". But ok, i could boot normally.
Then, I tried to downgrade, as there is a tutorial here in XDA, I was in OOS 9.0.4, then rollback to 5.1.1 (i guess) with appropriate file. Installed it, and rebooted it. But it was taking longer than I expected, and I rebooted it into fastboot mode to flash stock image into fastboot (as there is a tutorial here too). And after this, the ROM install, in my computer everything seems to be ok, but as soon as the CMD reboots it, the message "unlocked bootloader" appears, and then, goes black. Only that. Oh, the notification LED also lights up white!
I connected it into my pc, and i can hear the sound that "something is plugged in", but I can do nothing. I can access fastboot mode normally though.
Tried the tutorial in msm download tool, but had some problems... I mean, it doesn't recognize my phone, but if I put in PowerShell, and type "fastboot devices", it recognizes it.
Could you please help me?

aw4y_ said:
Hey guys!
So, my OnePlus 6 won't boot! My problems started when I tried to flash MIUI 10 port. Idk what I did, and appeared to me "your device is corrupted". But ok, i could boot normally.
Then, I tried to downgrade, as there is a tutorial here in XDA, I was in OOS 9.0.4, then rollback to 5.1.1 (i guess) with appropriate file. Installed it, and rebooted it. But it was taking longer than I expected, and I rebooted it into fastboot mode to flash stock image into fastboot (as there is a tutorial here too). And after this, the ROM install, in my computer everything seems to be ok, but as soon as the CMD reboots it, the message "unlocked bootloader" appears, and then, goes black. Only that. Oh, the notification LED also lights up white!
I connected it into my pc, and i can hear the sound that "something is plugged in", but I can do nothing. I can access fastboot mode normally though.
Tried the tutorial in msm download tool, but had some problems... I mean, it doesn't recognize my phone, but if I put in PowerShell, and type "fastboot devices", it recognizes it.
Could you please help me?
Click to expand...
Click to collapse
Did you installed fastboot adb drivers and oneplus drivers?
Or maybe try to wipe everything in fastboot and then install fastboot stock rom...

Follow the guide of msmdownloadtool, it's the best way to recover your phone, it's a pain the part of install the qualcom driver, but persist

only way to recover stock receovery and back to normal is to install msmdownload tool you can see the videos available on you tube
---------- Post added at 12:36 PM ---------- Previous post was at 12:34 PM ----------
https://drive.google.com/open?id=19CzsxB-ew088fPqrn_KSZ9Wkh5mru6Pe
download from my google drive

https://forum.xda-developers.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665
Use this method

siddhrsh said:
https://forum.xda-developers.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665
Use this method
Click to expand...
Click to collapse
I tried this method before, and find this method to be simpler. If the PC is not recognizing your phone, try powering completely off, then press Volume Up button for at least 5 secs before plugging into the PC and going into the MSM flashing tool. You don't need OnePlus drivers preinstalled for the PC to recognize your phone in this state. From there, just click "Start" on the MSM flashing tool, and wait for your phone to boot back to life. Take note any data inside will be completely wiped clean, like it was flashed from the factory. This YouTube guide here will help you better understand this.

aw4y_ said:
Hey guys!
So, my OnePlus 6 won't boot! My problems started when I tried to flash MIUI 10 port. Idk what I did, and appeared to me "your device is corrupted". But ok, i could boot normally.
Then, I tried to downgrade, as there is a tutorial here in XDA, I was in OOS 9.0.4, then rollback to 5.1.1 (i guess) with appropriate file. Installed it, and rebooted it. But it was taking longer than I expected, and I rebooted it into fastboot mode to flash stock image into fastboot (as there is a tutorial here too). And after this, the ROM install, in my computer everything seems to be ok, but as soon as the CMD reboots it, the message "unlocked bootloader" appears, and then, goes black. Only that. Oh, the notification LED also lights up white!
I connected it into my pc, and i can hear the sound that "something is plugged in", but I can do nothing. I can access fastboot mode normally though.
Tried the tutorial in msm download tool, but had some problems... I mean, it doesn't recognize my phone, but if I put in PowerShell, and type "fastboot devices", it recognizes it.
Could you please help me?
Click to expand...
Click to collapse
If you are able to use fastboot, can you download the latest compatibly TWRP for your device from the official website (twrp.me) get the IMG & ZIP files ( you can use just the image for both, but to keep it simple get both).
Boot into TWRP using the image you just downloaded by running
Code:
fastboot boot <img file name>
Your device should reboot into TWRP.
With your device in TWRPyou should be able to push the file to the phone using ADB push.
Code:
adb push <twrp zip file.zip> /sdcard/
From within TWRP install this zip image. * Now you should have a permanent TWRP recovery, until another OS/recovery flash.
To get the OS on the phone now -
Download the most recent official release for Stable OOS.
Code:
adb push <full os image.zip> /sdcard/
*That should put the file in the root of the SD card folder.
Again use TWRP to install this zip file on to the phone. * This will wipe the TWRP image we had just installed.
To get TWRP again, just flash TWRP after the OS image flash.
I would also suggest, reboot back into TWRP and install the OS & TWRP again as above.
Flashing the OS twice will flash the same version on both Partition A & B. This is essential.
If you find these steps confusing then the simple solution would be to use the MSM downlad tool it does everything for you with a few clicks.

magisk

I'm having a problem fastbooting a boot.img on my phone, I got the right room and have the bootloader unlocked and everything, but it keeps saying a command error from the phones side...... At least I think so.

Reinstall ADB drivers.

JJay666 said:
Reinstall ADB drivers.
Click to expand...
Click to collapse
That was the adb drivers, the same ones that I used to originally unlock the phone, you can't tell me that they weren't working, because they were working

I was trying to use them off of my windows 10 pc, but couldn't figure where the stupid folder went

Like, why would my adb drivers be not working even though it would work normally for unlocking the bootloader, and does it matter that I'm using the T-Mobile variant of the software?

youngherobrine1 said:
Like, why would my adb drivers be not working even though it would work normally for unlocking the bootloader, and does it matter that I'm using the T-Mobile variant of the software?
Click to expand...
Click to collapse
No it wouldn't. Try removing screen locks if any. Shouldn't be an issue if you can connect though. Easiest way is to use the AllinOne tool available here in this forum .

I had the same issue. I was trying to boot to the latest unofficial TWRP (fastboot boot twrp.img) and install it. I tried different USB ports, cables, etc... and even downloaded the official Google SDK (tools only) and replaced every binary on my laptop with them. Same thing (just slightly differently formatted output, but same "unknown command" error).
Fortunately, I realized that I only needed that to boot the phone prior to installing TWRP, which I already had (it was late!). I booted into the older installed TWRP and flashed the TWRP installer, then magisk.
I would still like to know what is happening, though. Like you said, this is the same Minimal ADB and Fastboot that I used to setup the phone in the first place.

Flapjack said:
I had the same issue. I was trying to boot to the latest unofficial TWRP (fastboot boot twrp.img) and install it. I tried different USB ports, cables, etc... and even downloaded the official Google SDK (tools only) and replaced every binary on my laptop with them. Same thing (just slightly differently formatted output, but same "unknown command" error).
Fortunately, I realized that I only needed that to boot the phone prior to installing TWRP, which I already had (it was late!). I booted into the older installed TWRP and flashed the TWRP installer, then magisk.
I would still like to know what is happening, though. Like you said, this is the same Minimal ADB and Fastboot that I used to setup the phone in the first place.
Click to expand...
Click to collapse
aparently I was using a chommand that wasnt working with the system, or was incomplete, heres the chommand I ended up using to get my phone rooted finally
fastboot flash boot magisk_patched.img

youngherobrine1 said:
aparently I was using a chommand that wasnt working with the system, or was incomplete, heres the chommand I ended up using to get my phone rooted finally
fastboot flash boot magisk_patched.img
Click to expand...
Click to collapse
That command actually flashes recovery. I thought the proper method was to fastboot boot to the recovery, then run the installer.

oneplus 8t(tmo) hardstuck in fastboot mode

Been trying to fix my phone for two days. first time rooting and it was kind of a success besides the wifi not working so i wanted to undo the root. tried many things and apparently messed up many things. The phone will not go into recovery mode. It wont turn on. if i try to flash anything i get many different errors(even twrp). And yes ive made sure everything is for my phones version(s). Oneplus 8t tmobile. so basically the phone can turn off and go into fastboot and the only thing inbetween that is it shows the 1+ logo for a split second.
"fastboot: error: Failed to boot into userspace fastboot; one or more components might be unbootable."
"unknown partition"
"FAILED (remote: 'Flashing is not allowed for Critical Partitions" btw bootloader is unlocked so dont understand how this is happening unless im misunderstanding the meaning
msm will not detect my phone also. even updated the qualcomm drivers and still nothing. however can't really find a sure fire way to determine if the phone is in edl mode besides it connecting in msm. which i haven't been able to do even at the start of yesterday when the phone could atleast flash twrp and boot edl from there. Pls help

lostneedfound said:
Been trying to fix my phone for two days. first time rooting and it was kind of a success besides the wifi not working so i wanted to undo the root. tried many things and apparently messed up many things. The phone will not go into recovery mode. It wont turn on. if i try to flash anything i get many different errors(even twrp). And yes ive made sure everything is for my phones version(s). Oneplus 8t tmobile. so basically the phone can turn off and go into fastboot and the only thing inbetween that is it shows the 1+ logo for a split second.
"fastboot: error: Failed to boot into userspace fastboot; one or more components might be unbootable."
"unknown partition"
"FAILED (remote: 'Flashing is not allowed for Critical Partitions" btw bootloader is unlocked so dont understand how this is happening unless im misunderstanding the meaning
msm will not detect my phone also. even updated the qualcomm drivers and still nothing. however can't really find a sure fire way to determine if the phone is in edl mode besides it connecting in msm. which i haven't been able to do even at the start of yesterday when the phone could atleast flash twrp and boot edl from there. Pls help
Click to expand...
Click to collapse
WiFi not working because the boot.img you flash is not match your system version.
ULTRAJC said:
If you have to use online source patched boot.img, don't flash, only do "fastboot boot boot.img", if it can successfully boot into the system, then use magisk patch current system boot.img and reboot.
Click to expand...
Click to collapse
You can use command "fastboot oem edl".
EDL mode(usually a full black screen) will timeout in few seconds if not receive any command from MSM, so you can start MSM flash frist then put phone to EDL.
Two possible situations need attention:
Some_Random_Username said:
Go to device manager and make sure your phone shows up as QDLOADER 9008.
If it shows up as QHUSB_BULK, it means Qualcomm driver wasn't installed automatically by Windows Update. Download the latest one from Microsoft website at http://download.windowsupdate.com/c..._fba473728483260906ba044af3c063e309e6259d.cab (source https://www.catalog.update.microsoft.com/Search.aspx?q=qualcomm hs usb 9008 ) and install it manually by right clicking on QHUSB_BULK and selecting "Update driver software" and "Browse my computer for driver software" to where you downloaded CAB file.
MSM tool is stuck on "Param pre-processing"
Ensure you're using the Qualcomm drivers linked above.
Click to expand...
Click to collapse
Some_Random_Username said:
Why is my device getting in Qualcomm crashdump mode in spite of a successful download?
Your unit was most likely manufactured after March 9th 2021, see https://forum.xda-developers.com/t/...ice-to-oxygenos.4180837/page-14#post-84789741 for reference. You therefore need to use HydrogenOS 11.0.7.12 MSM to recover your device linked at https://www.oneplusbbs.com/thread-5886794-1.html (mirrored at https://mega.nz/file/O8UySbgR#cXGlHkdA_7CYEhKIrek9zzAEwJ7Vx1D5BZdemnPlvGE by @pikatenor ). Getting new OxygenOS MSM tools is nowadays impossible unless you own the device it is meant for, so OP will not be updated to add new OxygenOS MSM tools allowing to workaround this issue. Feel however free to reach out to me in DM if you would like to get told how to maximise your chances to obtain one.
Click to expand...
Click to collapse
If MSM just not work or you not using Windows, you can follow:
[GUIDE] Unbrick or restore to OOS using only fastboot
This guide will only work up to OOS 11. This guide is for users that can't or just don't want to download MsmDownloadTool. Linux users especially, since the tool is not available for linux. All you need is a recent version of android tools with...
forum.xda-developers.com

ULTRAJC said:
WiFi not working because the boot.img you flash is not match your system version.
You can use command "fastboot oem edl".
EDL mode(usually a full black screen) will timeout in few seconds if not receive any command from MSM, so you can start MSM flash frist then put phone to EDL.
Two possible situations need attention:
If MSM just not work or you not using Windows, you can follow:
[GUIDE] Unbrick or restore to OOS using only fastboot
This guide will only work up to OOS 11. This guide is for users that can't or just don't want to download MsmDownloadTool. Linux users especially, since the tool is not available for linux. All you need is a recent version of android tools with...
forum.xda-developers.com
Click to expand...
Click to collapse
fastboot oem edl results in FAILED (remote: unknown command). tried it in minimal adb and fastboot and platformtools.

and that is the guide ive been following. however i keep getting partition issues.

lostneedfound said:
and that is the guide ive been following. however i keep getting partition issues.
Click to expand...
Click to collapse
Fastboot unbrick guide didn't work for you?
Maybe continue to try the key combination, open device manager, if you see devices name: …QDLoader 9008(driver installed) or …QHUSB_BULK(driver not install). That's EDL mode.
Some guide suggest this two command may work:
"fastboot reboot edl"
"fastboot reboot-edl"
Also can try "fastboot boot recovery that have adb.img" then use command "adb reboot edl".

okay so i none of that worked just continues to say unknown command or unknown partition. with the qual com i dont see anything otherthan android device for phone related stuff in the device manager. is there something ican do to get these partition errors to go away? last night i wasn't having any trouble with them and now they are everywhere and i really dont understand why becuase i hardly flashed anything last night. today i started flashing stuff from the guide you recommended/the one ive been using all this time and thats when the partition errors started and now im seeing them everywhere and i followed the guide down to the dime.

solved out of pure rage i restored my pc to factory and when it started back up i redownload msm and phone connected perfectly. also correctly rooted by adb pulling my own boot.img. ty for your help

lostneedfound said:
solved out of pure rage i restored my pc to factory and when it started back up i redownload msm and phone connected perfectly. also correctly rooted by adb pulling my own boot.img. ty for your help
Click to expand...
Click to collapse
That was one way to go, but for others. The problem was your adb/fastboot was old. Should no longer use the minimal adb it's outdated. Always use the latest platform tools.

nujackk said:
That was one way to go, but for others. The problem was your adb/fastboot was old. Should no longer use the minimal adb it's outdated. Always use the latest platform tools.
Click to expand...
Click to collapse
Exactly @nujackk ,
I have found the most likely reason for an "unknown command" message to a newer fastboot command is an old fastboot.exe version.

Cannot get oem unlock token oneplus 8 tmobile (in2017)

So I purchased a tmobile op8 and it arrived yesterday, after setting up the phone and network unlocking (which happened basically instantaneously after applying for it which i found odd), I am currently trying to unlock bootloader in the hopes of converting it to the international firmware. I am on software version 11.0.5.7.IN55CB
The problem I am facing is that whenever i try to do "adb devices" while the phone is powered on it works and lists it, but when the phone is in fastboot mode it does not list the device. Also when i do "fastboot oem get_unloock_code" it gets stuck at waiting for devices. I have read through numerous posts both here and on the op forums talking about this and some listed solutions such as going into windows optional updates and updating google bootloader or something, while others said to check that bootloader is unlocked (i did both and didnt work). Any tips? Also, could someone please link to the correct adb and driver downloads as I am getting mixed results when searching which is the correct download.

Just need to update drivers friend. Follow carefully.
1. Download Google fastboot drivers, unzip to get "usb_driver" folder
2. Right click file "android_winusb" and select install. Press OK on confirmation dialog.
3. Boot phone into fastboot, and connect to PC
4. Open the device manager on PC, and look for android device. Should have an orange triangle next to it
5. Right click that -> Update driver -> Browse my computer -> let me pick from a list -> Android Bootloader Interface
After success message fastboot commands will work. I'd also recommend using the lastest Fastboot Tools from Google if you have any more issues.
Have fun waiting 1-2 weeks for your unlock_code.bin file. F&^% T-Mobile lmao.

FoxyDrew said:
Just need to update drivers friend. Follow carefully.
1. Download Google fastboot drivers, unzip to get "usb_driver" folder
2. Right click file "android_winusb" and select install. Press OK on confirmation dialog.
3. Boot phone into fastboot, and connect to PC
4. Open the device manager on PC, and look for android device. Should have an orange triangle next to it
5. Right click that -> Update driver -> Browse my computer -> let me pick from a list -> Android Bootloader Interface
After success message fastboot commands will work. I'd also recommend using the lastest Fastboot Tools from Google if you have any more issues.
Have fun waiting 1-2 weeks for your unlock_code.bin file. F&^% T-Mobile lmao.
Click to expand...
Click to collapse
Thanks, worked like a charm. Now to wait 7 business days fml

if you just want the bootloader unlocked there's another way to do it instantly using EDL it's how I unlocked mine , instructions and files are here.. only works on Android 11 btw https://androidfilehost.com/?fid=7161016148664833753 if you really don't feel like installing edl and what not there is a Linux live distro that's already ready to go on the edl GitHub page you can download but just forewarning it's extremely glitchy and not used friendly lol if you need help , I can help you tho just lmk

PrivyetCyka said:
if you just want the bootloader unlocked there's another way to do it instantly using EDL it's how I unlocked mine , instructions and files are here.. only works on Android 11 btw https://androidfilehost.com/?fid=7161016148664833753 if you really don't feel like installing edl and what not there is a Linux live distro that's already ready to go on the edl GitHub page you can download but just forewarning it's extremely glitchy and not used friendly lol if you need help , I can help you tho just lmk
Click to expand...
Click to collapse
would i be able to convert to international firmware with this?
also at the end of instructions it states "***** i have not had any luck being able to flash custom roms onto this device even with it unlocked so be forewarned *****" Does this mean that only using this method does not allow for custom roms, or would waiting for tmobile unlock, converting to international firmware also not work with roms?
If roms dont work on this model even after flashing international firmware then im probably not even going to unlock lol

DamianF7 said:
would i be able to convert to international firmware with this?
also at the end of instructions it states "***** i have not had any luck being able to flash custom roms onto this device even with it unlocked so be forewarned *****" Does this mean that only using this method does not allow for custom roms, or would waiting for tmobile unlock, converting to international firmware also not work with roms?
If roms dont work on this model even after flashing international firmware then im probably not even going to unlock lol
Click to expand...
Click to collapse
i have t-m version and i have converted it to international software firmware also gets changed but by your self you won't be able to get 2 sim support because there is only one imei in phone. all the rom's work exacly the same as they do on global version not a single difference currently running a12 aex rom no problems at all

DamianF7 said:
would i be able to convert to international firmware with this?
also at the end of instructions it states "***** i have not had any luck being able to flash custom roms onto this device even with it unlocked so be forewarned *****" Does this mean that only using this method does not allow for custom roms, or would waiting for tmobile unlock, converting to international firmware also not work with roms?
If roms dont work on this model even after flashing international firmware then im probably not even going to unlock lol
Click to expand...
Click to collapse
don't forget to backup your persist.img there is some % chance it may get lost and you will have to recalibrate firngerprint sensor also back up the modem.img from twrp beacause that's has imei of your phone and if somehow you get your phone hardbricked that would be nice thing to have as a peace of mind

d.tat said:
don't forget to backup your persist.img there is some % chance it may get lost and you will have to recalibrate firngerprint sensor also back up the modem.img from twrp beacause that's has imei of your phone and if somehow you get your phone hardbricked that would be nice thing to have as a peace of mind
Click to expand...
Click to collapse
Can this be done without TWRP or does this have to be done after I root?

DamianF7 said:
Can this be done without TWRP or does this have to be done after I root?
Click to expand...
Click to collapse
you can backup persist without twrp. i'm sure modem could be backed up without twrp too but that's how i did it even tho i did not need persist nor modem image but i would suggest you do it anyways just to be safe booting into twrp in not hard at all you have to do is go info fastboot and through adb file boot into recovery ( fastboot boot "recovery" ) device will reboot in twrp and from there you just backup persist and modem take that file and save it on your computer
also important note for android 10 use twrp 3.4 and for android 11 use 3.6 and most importantly if you read the instructions on converting to global or installing twrp or custom rom carefully it will work 100% i was lazy and did it old way i used to do it on some other android phones and bricked few times but it was all good with msm tool you could restore phone from almost every state that's what made oneplus great

DamianF7 said:
Can this be done without TWRP or does this have to be done after I root?
Click to expand...
Click to collapse
no root needed to install or boot into twrp

d.tat said:
you can backup persist without twrp. i'm sure modem could be backed up without twrp too but that's how i did it even tho i did not need persist nor modem image but i would suggest you do it anyways just to be safe booting into twrp in not hard at all you have to do is go info fastboot and through adb file boot into recovery ( fastboot boot "recovery" ) device will reboot in twrp and from there you just backup persist and modem take that file and save it on your computer
also important note for android 10 use twrp 3.4 and for android 11 use 3.6 and most importantly if you read the instructions on converting to global or installing twrp or custom rom carefully it will work 100% i was lazy and did it old way i used to do it on some other android phones and bricked few times but it was all good with msm tool you could restore phone from almost every state that's what made oneplus great
Click to expand...
Click to collapse
Ok, thanks for clarification

FoxyDrew said:
Just need to update drivers friend. Follow carefully.
1. Download Google fastboot drivers, unzip to get "usb_driver" folder
2. Right click file "android_winusb" and select install. Press OK on confirmation dialog.
3. Boot phone into fastboot, and connect to PC
4. Open the device manager on PC, and look for android device. Should have an orange triangle next to it
5. Right click that -> Update driver -> Browse my computer -> let me pick from a list -> Android Bootloader Interface
After success message fastboot commands will work. I'd also recommend using the lastest Fastboot Tools from Google if you have any more issues.
Have fun waiting 1-2 weeks for your unlock_code.bin file. F&^% T-Mobile lmao.
Click to expand...
Click to collapse
Ive run into an issue with edl mode and you seem knowledgeable. I tried to flash the international firmware with an unlocked bootloader but it turned out to be an older build and now my phone is in crash dump mode. I planned on using msmtool to downgrade to android 10 and just restart but my phone isnt detected by my pc even though i have the qualcomm drivers installed. Any tips?
edit: btw can still access fastboot mode (download mode)
so phone is recognized in fastboot but not as qhusnhub or whatever its supposed to be, its just called oneplus android bootloader interface

DamianF7 said:
Ive run into an issue with edl mode and you seem knowledgeable. I tried to flash the international firmware with an unlocked bootloader but it turned out to be an older build and now my phone is in crash dump mode. I planned on using msmtool to downgrade to android 10 and just restart but my phone isnt detected by my pc even though i have the qualcomm drivers installed. Any tips?
edit: btw can still access fastboot mode (download mode)
so phone is recognized in fastboot but not as qhusnhub or whatever its supposed to be, its just called oneplus android bootloader interface
Click to expand...
Click to collapse
EDL mode can be tricky. This one's not a guarantee but it always works for me.
1. Download LinageOS recovery. Make sure you put it in your fastboot/platform-tools folder.
2. Flash that recovery in fastboot mode (unlock bootloader first if you need to) with the command "fastboot flash recovery lineage-18.1-20211218-recovery-instantnoodle.img"
3. Now boot into recovery, select advanced options, and enable ADB.
4. Now you have full adb access. Make sure you're plugged in and use this command on your PC. "adb reboot edl"
5. Check MSM, should be detected now if the right drivers are installed. If not, try combinations of different USB ports and different cables (you'd be surprised)
A lot of the tutorials on here on how to get a T-Mobile version to Global firmware are wonky methods or outdated, so let me know if you continue to have issue with that.

FoxyDrew said:
EDL mode can be tricky. This one's not a guarantee but it always works for me.
1. Download LinageOS recovery.
2. Flash recovery in fastboot mode (unlock bootloader first if you need to) with the command "fastboot flash recovery NAMEOFFILE.img"
3. Now boot into recovery, select advanced options, and enable ADB.
4. Now you have full adb access. Use this command "adb reboot edl"
5. Check MSM, should be detected now if the right drivers are installed. If not, try combinations of different USB ports and different cables (you'd be surprised)
A lot of the tutorials on here on how to get a T-Mobile version to Global firmware are wonky methods or outdated, so let me know if you continue to have issue with that.
Click to expand...
Click to collapse
Thanks for the reply man. Believe it or not this is exactly what I did lol. Got it working again and am now rooted on international oos 11.

FoxyDrew said:
Just need to update drivers friend. Follow carefully.
1. Download Google fastboot drivers, unzip to get "usb_driver" folder
2. Right click file "android_winusb" and select install. Press OK on confirmation dialog.
3. Boot phone into fastboot, and connect to PC
4. Open the device manager on PC, and look for android device. Should have an orange triangle next to it
5. Right click that -> Update driver -> Browse my computer -> let me pick from a list -> Android Bootloader Interface
After success message fastboot commands will work. I'd also recommend using the lastest Fastboot Tools from Google if you have any more issues.
Have fun waiting 1-2 weeks for your unlock_code.bin file. F&^% T-Mobile lmao.
Click to expand...
Click to collapse
Just wanted to say that this solved my issue of not being able to make it past the reboot into fastboot when flashing from TMo to Global using the flash-all.bat guides. I ran the batch file on a newly MSM'd 10.5.22 and when it got stuck at "waiting for device" I followed these steps and as soon as the driver was installed the batch file kicked back in and finished the flashing. Cheers!

SilverZero said:
Just wanted to say that this solved my issue of not being able to make it past the reboot into fastboot when flashing from TMo to Global using the flash-all.bat guides. I ran the batch file on a newly MSM'd 10.5.22 and when it got stuck at "waiting for device" I followed these steps and as soon as the driver was installed the batch file kicked back in and finished the flashing. Cheers!
Click to expand...
Click to collapse
Glad you got it man, worth all the trouble to get to a clean version of OOS without T-MO's junk and spying xD

FoxyDrew said:
EDL mode can be tricky. This one's not a guarantee but it always works for me.
1. Download LinageOS recovery. Make sure you put it in your fastboot/platform-tools folder.
2. Flash that recovery in fastboot mode (unlock bootloader first if you need to) with the command "fastboot flash recovery lineage-18.1-20211218-recovery-instantnoodle.img"
3. Now boot into recovery, select advanced options, and enable ADB.
4. Now you have full adb access. Make sure you're plugged on and use this command on your PC. "adb reboot edl"
5. Check MSM, should be detected now if the right drivers are installed. If not, try combinations of different USB ports and different cables (you'd be surprised)
A lot of the tutorials on here on how to get a T-Mobile version to Global firmware are wonky methods or outdated, so let me know if you continue to have issue with that.
Click to expand...
Click to collapse
Thanks SO MUCH for this!! This is the only thing that allowed me to get into EDL Mode. I'm a bit stuck using MSM though. It shows my device as connected, but when I click the "Target" dropdown O2 is not an option. The only option I see is TMO. Any ideas?
UPDATE: i was able to get MSM going. Selecting the target was not needed, just needed to reboot the phone into EDL again and quickly press Start.
I'm back to stock now and just unlocked my bootloader again.
I now have a follow up question: My goal is to install Pixel Experience on my OPO8. Do I need to flash the Global ROM first or can I go straight into Pixel Experience?
UPDATE 2: no matter what I try flashing to my device I always end up getting "not allowed" errors with the critical partition. I've done the fresh MSM process three times already and always end up hitting these critical partition errors when trying to flash the global rom (or any other rom for that matter). any ideas?

nmuntz said:
Thanks SO MUCH for this!! This is the only thing that allowed me to get into EDL Mode. I'm a bit stuck using MSM though. It shows my device as connected, but when I click the "Target" dropdown O2 is not an option. The only option I see is TMO. Any ideas?
UPDATE: i was able to get MSM going. Selecting the target was not needed, just needed to reboot the phone into EDL again and quickly press Start.
I'm back to stock now and just unlocked my bootloader again.
I now have a follow up question: My goal is to install Pixel Experience on my OPO8. Do I need to flash the Global ROM first or can I go straight into Pixel Experience?
UPDATE 2: no matter what I try flashing to my device I always end up getting "not allowed" errors with the critical partition. I've done the fresh MSM process three times already and always end up hitting these critical partition errors when trying to flash the global rom (or any other rom for that matter). any ideas?
Click to expand...
Click to collapse
Do you have a T-Mobile device? If so you SHOULD be selecting "TMO" from the dropdown in MSM. Not O2 or leaving it blank. If you don't have a T-Mobile device, your using the wrong MSM tool as TMO shouldn't be an option.
Did you unlock your bootloader after MSMing back to stock? MSM Tool will automatically lock your bootloader. Also what recovery are you using to try to flash ROMs?
Also PixelExperience is dead for op8 it stopped getting updates. I'd recommend HavocOS for a "Pixel Experience". Also a well polished ROM in general.

FoxyDrew said:
Do you have a T-Mobile device? If so you SHOULD be selecting "TMO" from the dropdown in MSM. Not O2 or leaving it blank. If you don't have a T-Mobile device, your using the wrong MSM tool as TMO shouldn't be an option.
Did you unlock your bootloader after MSMing back to stock? MSM Tool will automatically lock your bootloader. Also what recovery are you using to try to flash ROMs?
Also PixelExperience is dead for op8 it stopped getting updates. I'd recommend HavocOS for a "Pixel Experience". Also a well polished ROM in general.
Click to expand...
Click to collapse
I'm pretty sure that this is a T-Mobile device. It registers as IN2017 which matches the description of the phone I bought off amazon but not exactly sure how else can i verify this.
I did unlock the bootloader after MSMing back to stock. One thing I noticed is that the stock image that MSM flashed has Sprint branding and not T-Mobile. maybe i'm using the wrong MSM tool? I'm using the one from this guide
I just re-did MSM; this time selecting TMO and I still got Sprint branding. is this expected?
I've been trying with multiple recoverys: the stock one, TWRP and the one that pixelexperience had. The LineageOS one you provided I only used for doing the ADB thing to boot into EDL. What recovery do you recommend I use?
I did read about PixelExperience being dead so downloaded Havoc.
can you please confirm if I should be flashing the Global ROM before flashing HavocOS? regarding the critical partition errors any ideas whats causing those?
last question is regarding adb/fastboot - been reading different things about what version to use. been doing all my last experiments using the ones from https://developer.android.com/studio/releases/platform-tools but got the same results. sorry to spam you with so many questions - appreciate your help!

nmuntz said:
I'm pretty sure that this is a T-Mobile device. It registers as IN2017 which matches the description of the phone I bought off amazon but not exactly sure how else can i verify this.
I did unlock the bootloader after MSMing back to stock. One thing I noticed is that the stock image that MSM flashed has Sprint branding and not T-Mobile. maybe i'm using the wrong MSM tool? I'm using the one from this guide
I just re-did MSM; this time selecting TMO and I still got Sprint branding. is this expected?
I've been trying with multiple recoverys: the stock one, TWRP and the one that pixelexperience had. The LineageOS one you provided I only used for doing the ADB thing to boot into EDL. What recovery do you recommend I use?
I did read about PixelExperience being dead so downloaded Havoc.
can you please confirm if I should be flashing the Global ROM before flashing HavocOS? regarding the critical partition errors any ideas whats causing those?
last question is regarding adb/fastboot - been reading different things about what version to use. been doing all my last experiments using the ones from https://developer.android.com/studio/releases/platform-tools but got the same results. sorry to spam you with so many questions - appreciate your help!
Click to expand...
Click to collapse
I've never seen that MSM tool, but the one I use doesn't have any Sprint files at all. Not sure where you found that MSM but use this one for future reference.
No you don't need to flash global before a ROM.