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Booting TWRP Advice

HTCDreamOn said:
A word of advice: I strongly recommend temporarily booting any images (be it recoveries or kernels) you are about to flash to your device. This is simply a case of using the command "fastboot boot blahblah.img" whether blahblah.img is a recovery or kernel.
Click to expand...
Click to collapse
We know you can boot to TWRP vice flash to your device by using the command:
Code:
fastboot boot twrp.img
But how do you proceed from here? Are you required to use ADB commands at this point or can you unplug your USB cable and use TWRP as if it was installed, I.E. , back up current ROM, and install new zip.

purplepizza said:
We know you can boot to TWRP vice flash to your device by using the command:
Code:
fastboot boot twrp.img
But how do you proceed from here? Are you required to use ADB commands at this point or can you unplug your USB cable and use TWRP as if it was installed, I.E. , back up current ROM, and install new zip.
Click to expand...
Click to collapse
Sorry if I wasn't clear. Yes you can unplug usb and use as normal, it just means twrp isn't flashed to the device so it won't be there when you reboot.
I just recommend this step because I'm paranoid. Once you've confirmed the image works you should reboot to bootloader and fastboot flash the image, then you'll be able to boot into twrp whenever you want.

HTCDreamOn said:
Sorry if I wasn't clear. Yes you can unplug usb and use as normal, it just means twrp isn't flashed to the device so it won't be there when you reboot.
I just recommend this step because I'm paranoid. Once you've confirmed the image works you should reboot to bootloader and fastboot flash the image, then you'll be able to boot into twrp whenever you want.
Click to expand...
Click to collapse
This is a good step to do, and if the device supports it it should be used... for example the Moto G (if unlocked) fully supports fastboot boot commands, devices like the HTC One M7 do NOT support this anymore...
To the OP, what is really happening here is that TWRP or the boot.img (kernel) is being loaded from USB into RAM and executed normally, instead of the standard /boot partition which is skipped when executing fastboot boot. TWRP (and recovery in general) is really just a specialized micro-sized android distribution and when started via fastboot boot is executed as if it was the boot image. Once the image is transferred into RAM, the boot continues normally per the instructions of TWRP or the boot image, and no further action via USB is required. USB is just the medium to load the image into RAM and nothing more.
fastboot boot - used to manually load a boot image (or recovery) and execute from RAM, it is not flashed to the device, on the next reboot it will return to it's previous state
fastboot flash boot/recovery - used to actually flash the boot image or recovery image to the it's appropriate partition on the device, it does not execute it. On a reboot or factory default this information will stay in the device.

acejavelin said:
This is a good step to do, and if the device supports it it should be used... for example the Moto G (if unlocked) fully supports fastboot boot commands, devices like the HTC One M7 do NOT support this anymore...
To the OP, what is really happening here is that TWRP or the boot.img (kernel) is being loaded from USB into RAM and executed normally, instead of the standard /boot partition which is skipped when executing fastboot boot. TWRP (and recovery in general) is really just a specialized micro-sized android distribution and when started via fastboot boot is executed as if it was the boot image. Once the image is transferred into RAM, the boot continues normally per the instructions of TWRP or the boot image, and no further action via USB is required. USB is just the medium to load the image into RAM and nothing more.
fastboot boot - used to manually load a boot image (or recovery) and execute from RAM, it is not flashed to the device, on the next reboot it will return to it's previous state
fastboot flash boot/recovery - used to actually flash the boot image or recovery image to the it's appropriate partition on the device, it does not execute it. On a reboot or factory default this information will stay in the device.
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Thanks. So it seems there is no reason to ever flash TWRP unless you don't want the PC dependence to use the TWRP tool.

purplepizza said:
Thanks. So it seems there is no reason to ever flash TWRP unless you don't want the PC dependence to use the TWRP tool.
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Click to collapse
Well, sort of... but the point is once you flash anything via twrp, you are no longer stock, so why not flash twrp to make it easier to flash other things?
The smartest thing would be to unlock, boot TWRP, make a nandroid backup before you do anything at all, then flash TWRP and do your thing...

acejavelin said:
Well, sort of... but the point is once you flash anything via twrp, you are no longer stock, so why not flash twrp to make it easier to flash other things?
The smartest thing would be to unlock, boot TWRP, make a nandroid backup before you do anything at all, then flash TWRP and do your thing...
Click to expand...
Click to collapse
I understand what you are saying. The only flash I planned on was SuperSU. I thought when a system upgrade is available, I could simply use SU to unroot and be ready for the update. Would this work?
If I followed your recommendation, could I feasibly, flash TWRP, then when an upgrade is ready, flash nandroid backup (which I assume removes TWRP) then accept system update, then re-flash TWRP. I could restore apps by using TB. Does this make sense? Or does TWRP remain in place after flashing nandroid backup?

purplepizza said:
I understand what you are saying. The only flash I planned on was SuperSU. I thought when a system upgrade is available, I could simply use SU to unroot and be ready for the update. Would this work?
If I followed your recommendation, could I feasibly, flash TWRP, then when an upgrade is ready, flash nandroid backup (which I assume removes TWRP) then accept system update, then re-flash TWRP. I could restore apps by using TB. Does this make sense? Or does TWRP remain in place after flashing nandroid backup?
Click to expand...
Click to collapse
TWRP remains in place after restoring a nandroid (I think, I haven't installed on my Moto G, but in most devices it doesn't backup/restore recovery), but you can easily restore the original recovery via fastboot.

acejavelin said:
TWRP remains in place after restoring a nandroid (I think, I haven't installed on my Moto G, but in most devices it doesn't backup/restore recovery), but you can easily restore the original recovery via fastboot.
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Click to collapse
Just curious, how did you go from 5.1.1 to 6.0?

purplepizza said:
Just curious, how did you go from 5.1.1 to 6.0?
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Click to collapse
OTA... part of soak test on December 22.

acejavelin said:
OTA... part of soak test on December 22.
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Click to collapse
Hey thanks for helping to answer this, your explanation was much better I thought it had something to do with loading into RAM but wasn't sure. I didn't know some devices don't allow fastboot boot commands though, I've always relied on them. Part of the reason I'm avoiding htc now.
@purplepizza I agree with everything acejavelin has said: essentially you really do want to make sure your have twrp flashed.
To answer your nandroid question: It basically just takes an image of the partitions you choose, usually /system, /data, and /boot (where kernel stuff is) which is the least you need to boot back with all your data. It doesn't backup recovery and when you restore it doesn't write anything to recovery, so yes twrp will still be in place. In general you should only ever flash stuff to the recovery partition whilst in fastboot mode (i.e. using fastboot flash recovery recovery.img), I know on some devices you can flash recoveries as zip files in the recovery itself but you shouldn't.
I've seen quite a few people querying about the 6.0 OTA: in short, I wouldn't worry about it because once they start rolling out, people always catch the OTA and post here on xda. You can flash that and it'll return you to stock 6.0 anyway, at which point you can reroot and everything if you want.

acejavelin said:
Well, sort of... but the point is once you flash anything via twrp, you are no longer stock, so why not flash twrp to make it easier to flash other things?
The smartest thing would be to unlock, boot TWRP, make a nandroid backup before you do anything at all, then flash TWRP and do your thing...
Click to expand...
Click to collapse
One more question, when making the first nandroid backup. do you just back up system and data or do you include boot as well?

purplepizza said:
One more question, when making the first nandroid backup. do you just back up system and data or do you include boot as well?
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Click to collapse
My opinion is always backup everything, you can always choose what to restore
Sent from my MotoG3 using Tapatalk

acejavelin said:
My opinion is always backup everything, you can always choose what to restore
Sent from my MotoG3 using Tapatalk
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So what is boot? I know I am kind of going back to my previous question, but if I restore boot, is that the boot loader? I would assume this would not commonly need restored?
And I now assume the bootloader is completely independent from recovery.

purplepizza said:
So what is boot? I know I am kind of going back to my previous question, but if I restore boot, is that the boot loader? I would assume this would not commonly need restored?
And I now assume the bootloader is completely independent from recovery.
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Click to collapse
It is not the bootloader... It is the /boot partition of the phone, basically the kernel and RAM disk. If you screw things up and need to restore, you typically want to restore /boot, /system, and /data, and occasionally /cache (if you want to restore to save time and get an exact duplicate of the previous image, otherwise many people skip /cache and let it rebuild on the first boot which takes 10-15 minutes extra).

acejavelin said:
Well, sort of... but the point is once you flash anything via twrp, you are no longer stock, so why not flash twrp to make it easier to flash other things?
The smartest thing would be to unlock, boot TWRP, make a nandroid backup before you do anything at all, then flash TWRP and do your thing...
Click to expand...
Click to collapse
HTCDreamOn said:
@purplepizza I agree with everything acejavelin has said: essentially you really do want to make sure your have twrp flashed.
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Click to collapse
So I am following your advice. I booted to TWRP, made Nandroid backup.
Rebooted and flashed TWRP, see below:
Code:
sudo fastboot flash recovery twrp.img
target reported max download size of 268435456 bytes
sending 'recovery' (7772 KB)...
OKAY [ 10.635s]
writing 'recovery'...
OKAY [ 0.141s]
finished. total time: 10.776s
All seems OK.
Scrolled to recovery, selected recovery. TWRP was there. I then powered down.
After that I held power and volume down, system boots to dead Android with message “No command” Held power then volume up, I see stock boot loader. Is TWRP flashed somewhere or is it gone? So what did I do wrong.

purplepizza said:
So I am following your advice. I booted to TWRP, made Nandroid backup.
Rebooted and flashed TWRP, see below:
Code:
sudo fastboot flash recovery twrp.img
target reported max download size of 268435456 bytes
sending 'recovery' (7772 KB)...
OKAY [ 10.635s]
writing 'recovery'...
OKAY [ 0.141s]
finished. total time: 10.776s
All seems OK.
Scrolled to recovery, selected recovery. TWRP was there. I then powered down.
After that I held power and volume down, system boots to dead Android with message “No command” Held power then volume up, I see stock boot loader. Is TWRP flashed somewhere or is it gone? So what did I do wrong.
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Click to collapse
I have no idea, you did it right... selecting recovery from the bootloader should start TWRP, not stock recovery, that should be gone.

acejavelin said:
I have no idea, you did it right... selecting recovery from the bootloader should start TWRP, not stock recovery, that should be gone.
Click to expand...
Click to collapse
Any recommendations how to proceed?

I also need help with my soft bricked moto g3
Moto g3 (xt 1550, Indian dual sim 16 gb version)
I officially upgraded to 6.0.0 via ota and my objective was to root my phone and use xposed modules. I am not interested in any other custom rom (I'd rather keep stock rom just for moto display and ota upgrades) or custom recovery like twrp(I'm afraid it may cause ota upgrades to fail).
I used the method described here in the question- http://android.stackexchange.com/qu...rsu-using-play-store-versus-a-custom-recovery
So I first successfully unlocked my bootloader using the official motorola method.
I then proceeded to use google's backup settings to re-install all the apps that were uninstalled due to unlocking the bootloader. I also put supersu.zip version 2.46 on internal sd card.
I then proceeded to (without rebooting) enter fastboot where i used minimal adb to temporarily boot into twrp version2.8.7 r5 (link - http://forum.xda-developers.com/2015-moto-g/orig-development/twrp-twrp-moto-g-2015-t3170537 ).
Once in twrp, I located and flashed the supersu.zip. It flashed successfully. I procceded to clear dalvik cache and then after clearing cache I tried to reboot my phone using twrp.
However, it did not go beyond the "Warning - Bootloader Unlocked" screen that you get on unlocking a motorola bootloader. I left it for over 10 minutes (usb was still plugged in, I had >80% battery) but it did not proceed.
Long -pressing the power button causes the phone to vibrate and again attempt to boot, stuck at the same initial screen. Adb quite understandably does not work here.
I can press vol down+power and enter fastboot , where adb works fine.
I can enter stock recovery from the fastboot sceen too.
Using adb in fastboot, I am able to boot twrp . In fact, I tried to re-install supersu.zip. I retried version 2.46 and then tried version 2.56. On all occcassions, it was able to successfully flash it, but gets hung on the initial boot screen.
USB Debugging is also enabled, and I have a backp of my sd card data.
I tried taking a backup of the system and apps in twrp (3 gb in total) and tried to reflash it, but it still hangs at the same screen.
Is there any way I can unbrick my device and- (in decreasing order of preference)
1. Keep my stock rom and recovery?
2. Keep stock rom with twrp? (It should not be a problem)
3. Custom rom with custom recovery - perhaps official cm. Least preferred as I want Moto Display and stock/vanilla android.
Also, is SELinux involved anywhere with my phone getting bricked? I also read that a custom kernel is required for rooting 6.0, which I don't have. Supersu Version 2.56 is said to prevent soft bricks if the kernel is incorrect (systemless root), yet even after flashing the newer one it is still bricked. Where am I going wrong? What should I do? Thanks in advance! :good:

purplepizza said:
Any recommendations how to proceed?
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Click to collapse
Try the flash again? Sorry, but I don't really know help... if you are successfully rooted, perhaps try to flash TWRP image with Flashify? (select your file, don't let it auto-grab an image)

acejavelin said:
Try the flash again? Sorry, but I don't really know help... if you are successfully rooted, perhaps try to flash TWRP image with Flashify? (select your file, don't let it auto-grab an image)
Click to expand...
Click to collapse
I have not rooted yet. I guess I can try by booting TWRP then flashing SuperSU.
Can you think of any reasons not to try fastboot again the re-flash TWRP?

Help with Windows USB drivers to root Oneplus 6

I followed this guide: https://www.youtube.com/watch?v=LD1OlbfHdwE
Now I got in to TWRP, and I need to put boot.img, magisk zip and twrp zip into phone storage, but my OnePlus wont show up in Explorer like in the video. When I check in device manager ADB drivers are installed and windows wont replace them with the Android bootloader interface drivers that he uses in the video. I have ran the driver msi file like in the video but windows keeps using its driver.
I am a total newbie at rooting btw
anyone got a solution? now I'm stuck in TWRP and don't really dare to do anything haha

If you know xda why do you follow a youtube video to root your device?!
Can't you mount your storage in twrp so it gets shown in windows?
If you factory reset your phone and boot android it should show you a partition with op drivers. No need to download them.

pdppdp said:
If you know xda why do you follow a youtube video to root your device?!
Can't you mount your storage in twrp so it gets shown in windows?
If you factory reset your phone and boot android it should show you a partition with op drivers. No need to download them.
Click to expand...
Click to collapse
Dont know haha, had some trouble with other guides and ended up with this one.
Did a little workaround, I used adb sideload to transfer a folder with the files to, flashed boot.img, twrp and magisk but now it has sat on boot screen (red circle with 2 white spinning around) for 10 minutes ?

Dozen1 said:
Dont know haha, had some trouble with other guides and ended up with this one.
Did a little workaround, I used adb sideload to transfer a folder with the files to, flashed boot.img, twrp and magisk but now it has sat on boot screen (red circle with 2 white spinning around) for 10 minutes ?
Click to expand...
Click to collapse
did you wipe your storage?

matze19999 said:
did you wipe your storage?
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Click to collapse
nope… Just followed the video, flashed all the files and reboot

I would start from scratch.
With adb working move latest oos firmware (5.1.11), latest twrp.zip (3.2.3.0) and latest magisk.zip (17.1) to your internal storage.
In twrp flash latest full (~1,4gb) firmware, don't reboot but flash twrp.zip. Now reboot recovery and flash magisk.zip.
System should boot, is rooted and custom recovery is in place.

pdppdp said:
I would start from scratch.
With adb working move latest oos firmware (5.1.11), latest twrp.zip (3.2.3.0) and latest magisk.zip (17.1) to your internal storage.
In twrp flash latest full (~1,4gb) firmware, don't reboot but flash twrp.zip. Now reboot recovery and flash magisk.zip.
System should boot, is rooted and custom recovery is in place.
Click to expand...
Click to collapse
Sounds good but now TWRP is stuck at its loading screen….

Then turn off phone. Reboot to bootloader and boot twrp with fastboot
fastboot boot twrp-3.2.3-0-enchilada.img
Flash twrp.zip and reboot recovery.

pdppdp said:
Then turn off phone. Reboot to bootloader and boot twrp with fastboot
fastboot boot twrp-3.2.3-0-enchilada.img
Flash twrp.zip and reboot recovery.
Click to expand...
Click to collapse
Doesnt work, stuck at screen with oneplus logo when entered command

So now I really don't know what to do, just want my phone working tbh. Recovery ends up in loading TWRP screen, booting twrp with fastboot doesnt work, normal boot ofc doesnt work
Kind of regretting trying to root now...

Did you turn your phone off (unplugged from power, pc).
Then wait five minutes and boot bootloader (vol+ + power).

How to install TWRP after Magisk?

How to install TWRP after Magisk?
I have a OnePlus 6 running Oxygen OS 9.0 and I managed to install Magisk by obtaining the stock boot image and using the magisk manager app to patch it to include magisk, then I flashed the patched boot.img using fastboot and ADB.
The reason I did it this way is that every time I tried to boot with twrp.img in order to flash twrp.zip, I would run into a screen saying Qualcomm CrashDump Mode and TWRP wouldn't boot.
Now I want to install TWRP and I was wondering if there is any way of doing it by using Magisk, so I wouldn't have to boot twrp.img.
Any help would be greatly appreciated.

Same problem here. Already tried to boot every version of TWRP without success.

abrahammurciano said:
How to install TWRP after Magisk?
I have a OnePlus 6 running Oxygen OS 9.0 and I managed to install Magisk by obtaining the stock boot image and using the magisk manager app to patch it to include magisk, then I flashed the patched boot.img using fastboot and ADB.
The reason I did it this way is that every time I tried to boot with twrp.img in order to flash twrp.zip, I would run into a screen saying Qualcomm CrashDump Mode and TWRP wouldn't boot.
Now I want to install TWRP and I was wondering if there is any way of doing it by using Magisk, so I wouldn't have to boot twrp.img.
Any help would be greatly appreciated.
Click to expand...
Click to collapse
If you have magisk manager with working root.... Then YES you can.... Just download Official TWRP app from GPlay... Open it give root permissions and follow the onscreen instructions.... Thats it...and yes use the zip not the img file

James Blode said:
If you have magisk manager with working root.... Then YES you can.... Just download Official TWRP app from GPlay... Open it give root permissions and follow the onscreen instructions.... Thats it...and yes use the zip not the img file
Click to expand...
Click to collapse
But there's no button to flash, I open the app, select flash recovery, select device, but theres no button to flash it.
See screenshot

do you have fastboot and adb installed on your computer? I assume so as you have oem unlocked to flash magisk, correct?
Copy the TWRP file that ends with .img to your desktop
if so, open a command prompt (windows key +R and type cmd press enter)
type "cd desktop" without quotes and press enter
type fastboot boot "twrp.img" (whatever the file name actually is)
Congrats, you are now in TWRP. But wait, there's more! if you reboot to system or other wise leave TWRP at this point you will revert back to stock. to flash recovery onto your device permanently, install the TWRP.ZIP (The ZIP is IMPORTANT) as it changes the boot on the OP6 to have the TWRP image (oh, by the way, there is no recovery partition on OP6 like previous devices [Thanks A/B partition!])
Now you can reboot to your hearts content. remember if you update OOS, you will lose the custom recovery, so flash the TWRP.zip after every update!

Denkai said:
do you have fastboot and adb installed on your computer? I assume so as you have oem unlocked to flash magisk, correct?
Copy the TWRP file that ends with .img to your desktop
if so, open a command prompt (windows key +R and type cmd press enter)
type "cd desktop" without quotes and press enter
type fastboot boot "twrp.img" (whatever the file name actually is)
Congrats, you are now in TWRP. But wait, there's more! if you reboot to system or other wise leave TWRP at this point you will revert back to stock. to flash recovery onto your device permanently, install the TWRP.ZIP (The ZIP is IMPORTANT) as it changes the boot on the OP6 to have the TWRP image (oh, by the way, there is no recovery partition on OP6 like previous devices [Thanks A/B partition!])
Now you can reboot to your hearts content. remember if you update OOS, you will lose the custom recovery, so flash the TWRP.zip after every update!
Click to expand...
Click to collapse
Yes I have fastboot and ADB on my computer (Linux btw), and as I mentioned it the first post, I already tried that, except that instead of booting into TWRP after "fastboot boot twrp.img" I got to a screen saying Qualcomm CrashDump mode (see attached image (the image might not be exactly the same as mine, I found that on the internet because I don't have my computer to reproduce it now)).

super odd. maybe your boot image is corrupt? still doesn't explain why fastboot boot isn't working though... Try bluSpark's TWRP image. it's a solid build and I am not having issues with it.
https://forum.xda-developers.com/oneplus-6/development/kernel-t3800965/page17
or you can also try swapping to the other partition by typing 'fastboot --set-active=_a' (or fastboot --set-active=_b) and booting to that recovery.
if that doesn't work for ya, try and restore stock via fastboot is my only suggestion:
https://forum.xda-developers.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665

[/COLOR]
abrahammurciano said:
Yes I have fastboot and ADB on my computer (Linux btw), and as I mentioned it the first post, I already tried that, except that instead of booting into TWRP after "fastboot boot twrp.img" I got to a screen saying Qualcomm CrashDump mode (see attached image (the image might not be exactly the same as mine, I found that on the internet because I don't have my computer to reproduce it now)).
Click to expand...
Click to collapse
I wonder if this problem has been solved? After having Root without TWRP since last year, I decided to flash TWRP now because I miss having a Nandroid backup. But just like op, right after I type in "fastboot boot TWRP.img", I end up with that Qualcomm crash dump error, resulting in a fastboot boot loop every time I restart the phone. My only recourse is to use the MSM flash tool that reflashes everything and returns the phone into factory stock. In the process wiping out all my data. I don't think there's anything corrupted
EDIT: the problem wasn't the procedure; it was the damned bootable TWRP .img files. I downloaded different TWRP.img versions, and they all failed to flash into temporary TWRP, except for this one that I found here: https://drive.google.com/open?id=1CJoBQ5ZuAExv27XLWwLMFYfHoLEu5YFJ You can use this bootable .img to flash any TWRP version compatible with your device

Does it work for Android 10?
oneplus 6 running oxygen os beta 30 with magisk 20.1 without twrp

Borat38 said:
[/COLOR]
I wonder if this problem has been solved? After having Root without TWRP since last year, I decided to flash TWRP now because I miss having a Nandroid backup. But just like op, right after I type in "fastboot boot TWRP.img", I end up with that Qualcomm crash dump error, resulting in a fastboot boot loop every time I restart the phone. My only recourse is to use the MSM flash tool that reflashes everything and returns the phone into factory stock. In the process wiping out all my data. I don't think there's anything corrupted
EDIT: the problem wasn't the procedure; it was the damned bootable TWRP .img files. I downloaded different TWRP.img versions, and they all failed to flash into temporary TWRP, except for this one that I found here: https://drive.google.com/open?id=1CJoBQ5ZuAExv27XLWwLMFYfHoLEu5YFJ You can use this bootable .img to flash any TWRP version compatible with your device
Click to expand...
Click to collapse
Please I need TWRP for Blackview BV9600 pro please share with me if you have a link to a webpage I may find it

James Blode said:
If you have magisk manager with working root.... Then YES you can.... Just download Official TWRP app from GPlay... Open it give root permissions and follow the onscreen instructions.... Thats it...and yes use the zip not the img file
Click to expand...
Click to collapse
Hello I'm having magisk root access and official TWRP app but can't use it for NAndroid backup, how can I use the app for backup and fishing custom ROM?

Failed root, stuck on unlocked bootloader warning message.

Hi everyone,
I have tried to get root priviledges following a guide from Droidwin.com to flash Magisk throught TWRP. At the very last step, after flashing Magisk 19.3 throught TWRP when I tried to reboot my phone, it gets stuck on the "unlocked bootloader warning message", which is supposed to disappear after a few seconds and move on to the boot animation.
It seems like I can go to the stock recovery, which shows fastboot and wipe actions. At this point, I can acces the fastboot screen, but the device is not listed using the ADB command "adb devices", nothing is find.
I'm wondering, what can I try to restore the phone ? I thank you in advance for any suggestions.
Here are some additionnal informations:
---Device---
Oneplus nord running OxygenOS 10.5.5, european version.
---What I've done to get in this situation---
Unlock bootloader using ADB
Launch an TWRP image file using ADB
"Try" to root using Magisk 19.3 zip throught TWRP
Power off from recovery (using TWRP touch interface), but the guide tells to click reboot at this step ...
Get stuck on the warning message, not having any boot animation.

Try to boot in Fastboot.
Turn the Nord Off and start it with plus minus and Power.
Boot TWRP with "Fastboot boot "TWRP File name.img" and flash magisk 20.4

Thank you @denndenn.
I'm able to launch TWRP using the ADB command "fastboot boot [twrpfile].img". But when TWRP starts, it asks me for my decryption password, I type it, brief lines of code says "unable to read system/apex" before showing the home page of TWRP. Someone knows what this means, and if that can be the cause ?
I've then tried to reflash Magisk 19.3, which lead to the same result. I couldn't figure out how load Magisk 20.4 to my internal storage in order to flash it trought recovery ... Do you know how to flash a file which is not on my phone ?

Search forum....
Msm tool oneplus nord wipes phone but fixes any issues

thibdur said:
Thank you @denndenn.
I'm able to launch TWRP using the ADB command "fastboot boot [twrpfile].img". But when TWRP starts, it asks me for my decryption password, I type it, brief lines of code says "unable to read system/apex" before showing the home page of TWRP. Someone knows what this means, and if that can be the cause ?
I've then tried to reflash Magisk 19.3, which lead to the same result. I couldn't figure out how load Magisk 20.4 to my internal storage in order to flash it trought recovery ... Do you know how to flash a file which is not on my phone ?
Click to expand...
Click to collapse
Plug your phone to your PC while in TWRP, then you can use adb to push files to your phone, for example with adb push magisk.zip /sdcard. Then, flash Magisk in TWRP.

How about flashing stock boot to see if your OPN boots to system again and then simply load Magisk zip to your internal storage and then flash via TWRP?

Thank you a lot for your suggestions !
Here is the solution in my case :
Because fastboot was working, I was able to flash stock oxygen rom, and get every working, but it needs to erase all your data.
You can find a guide on the XDA topic "[ROM][STOCK][FASTBOOT][OPN] Stock Fastboot ROMs for OnePlus Nord". The rom list have the lastest roms version (09/2020), and the process is super automated.
Have a good week-end XDA !

Stuck at TWRP splash screen

I recently updated to MIUI v12.5.1.0.RCDMIXM using a recovery zip through TWRP. A few days later I decided to flash Magisk by patching the boot.img from the same zip and flashed using fastboot.
Everything worked fine until I rebooted to recovery using the Magisk app. Now it's stuck at the TWRP splash screen, can't even reboot or enter fastboot with power and volume buttons because it will always try to boot to TWRP.
What do I need to do to fix this?
This is where I got the TWRP

Just erase/format the MISC partition.
This partition holds a "go to recovery" parameter.

VD171 said:
Just erase/format the MISC partition.
This partition holds a "go to recovery" parameter.
Click to expand...
Click to collapse
Okay, but how exactly can I do that? It's been stuck like this since last night and won't go to fastboot with vol keys..

Can you use TWRP ?
If not, you need sp flash tool.
Try to flash boot.img and recovery.img.

VD171 said:
Can you use TWRP ?
If not, you need sp flash tool.
Try to flash boot.img and recovery.img.
Click to expand...
Click to collapse
TWRP is stuck at the state in the picture I sent.
I'll try using SP Flash, but I think I remember that Xiaomi devices have SLA auth to prevent unauthorized flashing using SP Flash. Will your scatter file work without it?

VD171 said:
Can you use TWRP ?
If not, you need sp flash tool.
Try to flash boot.img and recovery.img.
Click to expand...
Click to collapse
I just realized that the zip file or any other version does not include a stock recovery.img...
Do you have the Global v12.5.1.0 stock recovery? Or I could just use any version like vbmeta?
The phone's battery just drained, if I try to plug it would try to boot into twrp again so I kept it unplugged since I need it to be turned off for SP Flash

Reyproject said:
TWRP is stuck at the state in the picture I sent.
I'll try using SP Flash, but I think I remember that Xiaomi devices have SLA auth to prevent unauthorized flashing using SP Flash. Will your scatter file work without it?
Click to expand...
Click to collapse
Exactly.
You need to bypass EDL auth:
[GUIDE] How To bypass authentication and flash in EDL with NO auth for FREE
Thanks to: chaosmaster / k4y0z: GitHub / XDA xyzz / xyz`: GitHub / XDA Dinolek: GitHub / XDA How to install: 1. Download the attached file: VD171_MTK-bypass.zip. 2. Extract the file and open the folder. 3. Run and install python...
forum.xda-developers.com

Reyproject said:
I just realized that the zip file or any other version does not include a stock recovery.img...
Do you have the Global v12.5.1.0 stock recovery? Or I could just use any version like vbmeta?
The phone's battery just drained, if I try to plug it would try to boot into twrp again so I kept it unplugged since I need it to be turned off for SP Flash
Click to expand...
Click to collapse
You said "fastboot", so you need the fastboot ROM.
SP flash tool does NOT need the device to be turned off, it just need to REBOOT.
If you try to flash while a reboot to another reboot, it will works perfectly.

Which magisk did you flash? 23 is not working for 9A

yaro666 said:
Which magisk did you flash? 23 is not working for 9A
Click to expand...
Click to collapse
Magisk V23.0 is the BEST MAGISK EVER !

yaro666 said:
Which magisk did you flash? 23 is not working for 9A
Click to expand...
Click to collapse
It does tho, i've been using it since the first use of this phone (12 and 12.5)

Applewubs said:
It does tho, i've been using it since the first use of this phone (12 and 12.5)
Click to expand...
Click to collapse
Are you still in 12.5? Do you also use a custom recovery in that version?

Just managed to access a laptop and got to fix the situation. Turns out I can still use adb even though TWRP is stuck on the logo screen.
First tried the `fastboot erase misc` command but misc partition doesn't exist on the device.
Tried `fastboot continue` but won't let me use the command and `fastboot reboot` just makes it go to recovery and get stuck again.
I flashed Orange Fox Recovery and it was still stuck at it's splash screen. So I went back to fastboot and for some reason `fastboot reboot` worked now and booted to system, further restarts are normal now.
Now I'm curious, why won't custom recoveries work with MIUI 12.5? When I tried accessing root, every folder (ex. system) is in this format [1;34system[0m, does it have something to do with that?
Still trying to get the stock recovery, but there's no fastboot rom file for this version yet...

yaro666 said:
Which magisk did you flash? 23 is not working for 9A
Click to expand...
Click to collapse
Magisk v23 works just fine, just patch the boot.img file of your ROM version and flash it with custom recovery or fastboot.

Reyproject said:
Are you still in 12.5? Do you also use a custom recovery in that version?
Click to expand...
Click to collapse
Theres one TWRP that doesnt have a splashscreen, in that one just block and unblock the screen while on recovery and it'll work fine. BUT your internal storage isn't going to be accesible, its encrypted and (for some reason) on 12.5 twrp cant unlock the storage, you'll have to do everything on your sdcard

Reyproject said:
Just managed to access a laptop and got to fix the situation. Turns out I can still use adb even though TWRP is stuck on the logo screen.
First tried the `fastboot erase misc` command but misc partition doesn't exist on the device.
Tried `fastboot continue` but won't let me use the command and `fastboot reboot` just makes it go to recovery and get stuck again.
I flashed Orange Fox Recovery and it was still stuck at it's splash screen. So I went back to fastboot and for some reason `fastboot reboot` worked now and booted to system, further restarts are normal now.
Now I'm curious, why won't custom recoveries work with MIUI 12.5? When I tried accessing root, every folder (ex. system) is in this format [1;34system[0m, does it have something to do with that?
Still trying to get the stock recovery, but there's no fastboot rom file for this version yet...
Click to expand...
Click to collapse
I thinks its because they cant unlock the storage, they keep trying and just keeps stuck on trying.