Database Users

A2017G Bootloader mode on 7.1.1?

EDIT: Fixed! Big thanks to @S0wL , @bkores , @tamahouse02 and @tron1 for the help. I made a guide to help other people with the same problem:
Guide to get TWRP again HERE
Okay, it seems to me that I messed up kinda badly. The phone is fully operational, but after I got to 7.0 the stock recovery replaced good ol' TWRP... which left me with an unlocked bootloader and an useless recovery. I have no root, and that's pretty much the only thing that matters to me. I downloaded @bkores 's Axon7Toolkit but there is NO way to get fastboot on the damned thing. After the program tries to get to bl mode (I assume adb reboot bootloader?) the ZTE logo flashes and the unlocked BL image appears, then the phone starts as normal.
Same thing with the leaked 7.1.1, no difference.
I tried EDL, recovery, that shady factory test mode thing, no one gives fastboot... Any ideas as to why I can't get there??+
I suspect it may be something related to the OEM unlocking option in the dev options, but it is set to ON and greyed out. so no idea

Try the menu on the boot screen.

Choose an username... said:
Okay, it seems to me that I messed up kinda badly. The phone is fully operational, but after I got to 7.0 the stock recovery replaced good ol' TWRP... which left me with an unlocked bootloader and an useless recovery. I have no root, and that's pretty much the only thing that matters to me. I downloaded @bkores 's Axon7Toolkit but there is NO way to get fastboot on the damned thing. After the program tries to get to bl mode (I assume adb reboot bootloader?) the ZTE logo flashes and the unlocked BL image appears, then the phone starts as normal.
Same thing with the leaked 7.1.1, no difference.
I tried EDL, recovery, that shady factory test mode thing, no one gives fastboot... Any ideas as to why I can't get there??+
I suspect it may be something related to the OEM unlocking option in the dev options, but it is set to ON and greyed out. so no idea
Click to expand...
Click to collapse
Sounds like the issue is with the ROM like it is somehow blocking you from accessing bootloader mode. It's definitely not my toolkit.

Choose an username... said:
Okay, it seems to me that I messed up kinda badly. The phone is fully operational, but after I got to 7.0 the stock recovery replaced good ol' TWRP... which left me with an unlocked bootloader and an useless recovery. I have no root, and that's pretty much the only thing that matters to me. I downloaded @bkores 's Axon7Toolkit but there is NO way to get fastboot on the damned thing. After the program tries to get to bl mode (I assume adb reboot bootloader?) the ZTE logo flashes and the unlocked BL image appears, then the phone starts as normal.
Same thing with the leaked 7.1.1, no difference.
I tried EDL, recovery, that shady factory test mode thing, no one gives fastboot... Any ideas as to why I can't get there??+
I suspect it may be something related to the OEM unlocking option in the dev options, but it is set to ON and greyed out. so no idea
Click to expand...
Click to collapse
Feel the same, 7.1.1 stock recovery is evil, it keep coming back after flash twrp. LOL
Here what I didi to get twrp on 7.1.1:
1. Use axon7tool -w recovery (twrp of couse)
2. Watch closely the cmd, when it said "Successful!","Reboot in 5 second" - unplug your phone
3. Use Volume Up + Power to get to recovery (twrp)
4. Mount > Mount System (dont check read only)
5. Flash something - I don't know - But I get the feeling that it stop stock recovery coming back - I personally flash Chinese Modem (because I have to ))
6. Reboot system

@bkores Yeah I'm pretty sure it's not your toolkit since I can't access it even with key comb, adb, option on the unl bl page...
@lafester Nope, tried many times. It just boots to normal whenever I select fastboot
@tamahouse02 Well I believe that should work, but I can't get axon7tool not to crash... I'll keep trying, maybe it's a driver or sth.

Choose an username... said:
@bkores Yeah I'm pretty sure it's not your toolkit since I can't access it even with key comb, adb, option on the unl bl page...
@lafester Nope, tried many times. It just boots to normal whenever I select fastboot
@tamahouse02 Well I believe that should work, but I can't get axon7tool not to crash... I'll keep trying, maybe it's a driver or sth.
Click to expand...
Click to collapse
Have you restart after install zadig driver?
1. From system: adb reboot edl
2. Install zadig driver
3. Hold "Volume Up + Power"
4. Enter system again: adb reboot edl
5. axon7tool -w recovery

tamahouse02 said:
Have you restart after install zadig driver?
1. From system: adb reboot edl
2. Install zadig driver
3. Hold "Volume Up + Power"
4. Enter system again: adb reboot edl
5. axon7tool -w recovery
Click to expand...
Click to collapse
yes, like 4 times already. I even used the stock Qualcomm COM3 drivers... no dice.
the thing is that I had to do the same when I did the stuff on android 6 and it worked after some time. I even wrote the procedure on another thread xd

Choose an username... said:
yes, like 4 times already. I even used the stock Qualcomm COM3 drivers... no dice.
the thing is that I had to do the same when I did the stuff on android 6 and it worked after some time. I even wrote the procedure on another thread xd
Click to expand...
Click to collapse
Not same my axon7tool. I use this https://forum.xda-developers.com/axon-7/development/axon7tool-flash-backup-boot-recovery-t3514254

Bootloader Mode is Disable/strip in G variant, and if this is how ZTE is headed to future updates it seems like U will have a Disable Bootloader Mode as well.
If you guy can rollback to MM , you can Unlock there using @bkores tool.

DrakenFX said:
Bootloader Mode is Disable/strip in G variant, and if this is how ZTE is headed to future updates it seems like U will have a Disable Bootloader Mode as well.
If you guy can rollback to MM , you can Unlock there using @bkores tool.
Click to expand...
Click to collapse
I was thinking about that, but does mifavor let you roll back from an SD update? I'll try later, but i doubt it.
Besides from that is there any way to flash stuff from the stock recovery? It tells me that ZIPs have to be signed only

tamahouse02 said:
Feel the same, 7.1.1 stock recovery is evil, it keep coming back after flash twrp. LOL
Here what I didi to get twrp on 7.1.1:
1. Use axon7tool -w recovery (twrp of couse)
2. Watch closely the cmd, when it said "Successful!","Reboot in 5 second" - unplug your phone
3. Use Volume Up + Power to get to recovery (twrp)
4. Mount > Mount System (dont check read only)
5. Flash something - I don't know - But I get the feeling that it stop stock recovery coming back - I personally flash Chinese Modem (because I have to ))
6. Reboot system
Click to expand...
Click to collapse
In step 1, which TWRP version did you use? The latest 3.1.0.-0 ?

dnlilas said:
In step 1, which TWRP version did you use? The latest 3.1.0.-0 ?
Click to expand...
Click to collapse
Official 3.0.4.1

@tamahouse02
The latest "official" TWRP is at TWRP site https://twrp.me/devices/zteaxon7.html , version 3.1.0-0.
Is there any problem using it instead of the previous "official" 3.0.4.1 ?
Edit: I also read on TWRP site:
"Note many devices will replace your custom recovery automatically during first boot. To prevent this, use Google to find the proper key combo to enter recovery. After typing fastboot reboot, hold the key combo and boot to TWRP. Once TWRP is booted, TWRP will patch the stock ROM to prevent the stock ROM from replacing TWRP. If you don't follow this step, you will have to repeat the install."
This is in sync with your information requiring to reboot immediately to TWRP (step 2 and 3).

dnlilas said:
@tamahouse02
The latest "official" TWRP is at TWRP site https://twrp.me/devices/zteaxon7.html , version 3.1.0-0.
Is there any problem using it instead of the previous "official" 3.0.4.1 ?
Edit: I also read on TWRP site:
"Note many devices will replace your custom recovery automatically during first boot. To prevent this, use Google to find the proper key combo to enter recovery. After typing fastboot reboot, hold the key combo and boot to TWRP. Once TWRP is booted, TWRP will patch the stock ROM to prevent the stock ROM from replacing TWRP. If you don't follow this step, you will have to repeat the install."
This is in sync with your information requiring to reboot immediately to TWRP (step 2 and 3).
Click to expand...
Click to collapse
I use 3.0.4.1 because I flash plenty things before without any issue, so I keep using it.
After write recovery by axon7tool, it's reboot automatically and override the recovery, that why I have to unplug to stop the reboot, and also flash all I can - fortunaeally​ it also stop recovery be overrided

@tamahouse02 sorry to ask, but is the a7tool of the link a fixed version? how does it differ from the one i have?

I've been in the same situation like you @Choose an username... Updated to nougat on G model and I had not bootloader. This is what I did :
1. Downloaded the tool from here https://forum.xda-developers.com/axon-7/development/tool-axon7toolkit-t3573108
2. Installed the driver using the install driver option that you can choose once you connect you phone to your computer
3. Use the tool to perform the unlock bootloader command again even though you have unlocked it before
4. Use the tool to install twrp, it will boot the phone in twrp
5. Flash Supersu before you boot the system first time after flashing twrp
5. Install whatever version of android want after

@S0wL Funny, I had to use Zadig to make it work. I'll try r n, thx

Choose an username... said:
@S0wL Funny, I had to use Zadig to make it work. I'll try r n, thx
Click to expand...
Click to collapse
Use Zadig then and let me know if it worked

@S0wL I can't use bootloader unlock on it, says "This option does not support your device!"
How did you do this??

Choose an username... said:
@tamahouse02 sorry to ask, but is the a7tool of the link a fixed version? how does it differ from the one i have?
Click to expand...
Click to collapse
I try your version once, but it seems not work for me, so I keep using the old one.
---------- Post added at 03:42 AM ---------- Previous post was at 03:39 AM ----------
Choose an username... said:
@S0wL I can't use bootloader unlock on it, says "This option does not support your device!"
How did you do this??
Click to expand...
Click to collapse
I thought you had already unlocked bootloader? Why have you done it twice?

Hard/soft brick

I think I messed up my PH-1 something royally.
All I was trying to do is unlock my bootloader and load Magisk.
To preface this, my PH-1 seemed to act a little wonky from the get-go. I bought it 3rd person from a guy on craigslist so anything warranty involved I think I'm out of luck.
The phone would take a while to power on, it took something like 10secs on the power button just to turn it on. And if I set it to reboot , it boots into the bootloader. Also, I was never able to access the recovery (even using power + up). It always felt like I had to hold the buttons for way to long to get to its destination; e.g. up and power to get into fastboot.
Ok where I'm at now. In can occasionally get into fastboot mostly after it bootlooping a few times. It won't get past the Essential logo if I try to boot it up.
PS I was able to unlock the bootloader.
Steps I took to remedy this:
> erase all user data in fastboot
> hold power + u + d to hard power off
> follow this guide https://forum.xda-developers.com/essential-phone/how-to/guide-rooting-essential-ph-1-magisk-t3701976
> attempt to install stock system image via flash-all
>a ton other
Here are the results of that.
https://imgur.com/a/iVwwS
Help me guys please. :crying:
A little progress, I was unable to unlock_critical but its still hanging here
https://imgur.com/a/IdZum

jAm-0 said:
I think I messed up my PH-1 something royally.
All I was trying to do is unlock my bootloader and load Magisk.
To preface this, my PH-1 seemed to act a little wonky from the get-go. I bought it 3rd person from a guy on craigslist so anything warranty involved I think I'm out of luck.
The phone would take a while to power on, it took something like 10secs on the power button just to turn it on. And if I set it to reboot , it boots into the bootloader. Also, I was never able to access the recovery (even using power + up). It always felt like I had to hold the buttons for way to long to get to its destination; e.g. up and power to get into fastboot.
Ok where I'm at now. In can occasionally get into fastboot mostly after it bootlooping a few times. It won't get past the Essential logo if I try to boot it up.
PS I was able to unlock the bootloader.
Steps I took to remedy this:
> erase all user data in fastboot
> hold power + u + d to hard power off
> follow this guide https://forum.xda-developers.com/essential-phone/how-to/guide-rooting-essential-ph-1-magisk-t3701976
> attempt to install stock system image via flash-all
>a ton other
Here are the results of that.
https://imgur.com/a/iVwwS
Help me guys please. :crying:
Click to expand...
Click to collapse
read through this and follow the steps should be good to go.
https://forum.xda-developers.com/essential-phone/development/stock-7-1-1-nmj20d-t3701681
This is also very helpful
https://mata.readthedocs.io/en/latest/

That's the exact process I was going through, and it finally booted up.
The issue I was having was a bad usb connection which wouldn't allow me to unlock_critical.
SOLVED. Still no Magisk, we'll worry about that another time. 5hrs of troubleshooting is enough for one night.

https://imgur.com/a/ZiBzp
SO close to getting Magisk to install, any reason the refuses to flash the boot partition? I used the stock boot.img and had Magisk patch it before I flashed

SO close to getting Magisk to install, any reason the refuses to flash the boot partition? I used the stock boot.img and had Magisk patch it before I flashed

jAm-0 said:
SO close to getting Magisk to install, any reason the refuses to flash the boot partition? I used the stock boot.img and had Magisk patch it before I flashed
Click to expand...
Click to collapse
You have to flash magisk in twrp recovery NOT bootloader mode.
It's right in the OP from the rooting guide you followed:
Do not set up a password if you are on 8.1 twrp doesn't work.
You need to read through that rooting guide and make sure you know what you're doing before you try.
This phone is easy to hard brick and there is no solution to recover from that.
OREO 8.0/8.1
REQUIREMENTS:
An unlocked bootloader.
A working ADB/Fastboot environment on your computer. Knowledge on how ADB and Fastboot works is also preferred.
The stock boot image for whatever build you're running/trying to root.
The latest TWRP build for our device.
If on 8.1, remove your pin/pattern/passcode until the root process is done.
1. Download both the stock boot image for whatever build you're running and the Magisk or SuperSU zip. Transfer both files to your device's internal storage.
2. Reboot your phone into the bootloader, then open up your command prompt or terminal and flash the latest TWRP build for the device using:
Code:
fastboot flash boot twrp.img
3. Once TWRP has finished flashing, reboot into your recovery. When prompted, enter your pattern/passcode/password to decrypt your data in order to gain access to your internal storage.
4. Once you're in TWRP, install the stock boot image and then the Magisk/SuperSU zip.
5. Whenever Magisk/SuperSU finishes installing, simply reboot your device! You should now be rooted.
*NOTE: TWRP will NOT remain installed on your device.

wolfu11 said:
You have to flash magisk in twrp recovery NOT bootloader mode.
It's right in the OP from the rooting guide you followed:
Do not set up a password if you are on 8.1 twrp doesn't work.
You need to read through that rooting guide and make sure you know what you're doing before you try.
This phone is easy to hard brick and there is no solution to recover from that.
OREO 8.0/8.1
REQUIREMENTS:
An unlocked bootloader.
A working ADB/Fastboot environment on your computer. Knowledge on how ADB and Fastboot works is also preferred.
The stock boot image for whatever build you're running/trying to root.
The latest TWRP build for our device.
If on 8.1, remove your pin/pattern/passcode until the root process is done.
1. Download both the stock boot image for whatever build you're running and the Magisk or SuperSU zip. Transfer both files to your device's internal storage.
2. Reboot your phone into the bootloader, then open up your command prompt or terminal and flash the latest TWRP build for the device using:
Code:
fastboot flash boot twrp.img
3. Once TWRP has finished flashing, reboot into your recovery. When prompted, enter your pattern/passcode/password to decrypt your data in order to gain access to your internal storage.
4. Once you're in TWRP, install the stock boot image and then the Magisk/SuperSU zip.
5. Whenever Magisk/SuperSU finishes installing, simply reboot your device! You should now be rooted.
*NOTE: TWRP will NOT remain installed on your device.
Click to expand...
Click to collapse
I realize all that, the issue is I cannot access any sort of recovery because I think my bootloader is defective.
For example from a cold restart if I press the power button for say 3 -5 seconds it wont boot, just boot to the Essential logo and loop. To get the phone to boot I have to hold the power down for 15-20 seconds while it bootloops a couple times then it'll boot.
Is there a possible way to reflash the bootloader software if it is defective? It's unlocked btw
There is a way to install magisk via fastboot with a patched_boot img which I'm working on. Cant seem to find the right boot img to patch for 8.1
PS Is it possible to flash .zips through fastboot? e.g. custom roms etc

Was finally able to get into recovery, so all is well. Thanks for the help yall

OP, what was your process to successfully get into recovery and fix your problems?
It may help others sometime?

gimpy1 said:
OP, what was your process to successfully get into recovery and fix your problems?
It may help others sometime?
Click to expand...
Click to collapse
It's really hard to say, my phone has a serious problem with it. sometimes I cant get it to boot, it will boot into the bootloader over and over and over. I've managed to get Lineage 15.1 on if for a bit until I tried to get back into the recovery which sent it manic.
I just got lucky I was able to get into TWRP and flash lineage.
my first issue not being able to flash the stock image via fastboot because I didn't unlock_critical which can sometimes fail when the usb connection is bad.
Currently flashing stock again if my phone will boot up. I'm not sure whats wrong with my bootloader but its causing a ton of havoc

My essential phone stuck in boot logo,bootloader work but recovery doesn´t work
Bootloader locked.
Oem unlocking disable.
Usb debugging disable.
How to flash stock recovery or twrp on bootloader locked ? please
Thank you!

katastyle971 said:
My essential phone stuck in boot logo,bootloader work but recovery doesn´t work
Bootloader locked.
Oem unlocking disable.
Usb debugging disable.
How to flash stock recovery or twrp on bootloader locked ? please
Thank you!
Click to expand...
Click to collapse
Same boat for me - just keep rebooting to show Powered by Android Screen and then reboot again and again. Was able to see my device using fastboot devices command but all attempts to access recory just repeat the bootloop entry. I would happily check the OEM UNLOCK option in dev settings but can't even get it to book to any OS to make that option happen. Still shows bootloader locked on bootloader screen - any help someone can suggest?

I had this problem tonight also. In my case I suspect it had to do with the install of magisk in which I checked both boxes and patched the bootloader. on reboot I was stuck on boot. Just wanted to add my solution. I got the pie back to stock zip here https://forum.xda-developers.com/essential-phone/development/stock-7-1-1-nmj20d-t3701681 then I put it into the adb folder and ran the flashall.bat script. I tried the no wipe one and it saved my information. very happy I didnt have to resetup my phone in the end.

katastyle971 said:
My essential phone stuck in boot logo,bootloader work but recovery doesn´t work
Bootloader locked.
Oem unlocking disable.
Usb debugging disable.
How to flash stock recovery or twrp on bootloader locked ? please
Thank you!
Click to expand...
Click to collapse
I am in the same boat. I tried to re-install the OS, but because my USB debugging was not enabled, Fastboot worked but ADB would not and since I basically wiped the recovery area, my phone will only boot into Fastboot but will not allow any loading of recovery. I would pay for someone to help. This is so hard to figure out. I have contacted Essential but since my phone is over 12 months old, the warranty has expired.
Help please. It seems like such a waste to have a bricked phone.

Help me guys. I deleted my Oneplus 6T SystemUI.apk. Bootloop.

Help me guys. I deleted my Oneplus 6T SystemUI.apk. Bootloop. Please teach me how to fix it.

Maybe this thread could be useful
https://forum.xda-developers.com/showthread.php?t=1637847

Is your bootloader unlocked? If so, you can just boot TWRP via fastboot (boot the img, not installing the zip) and dirty flash the latest OTA.
If nothing works, boot into EDL mode and use msmdownloadtool as last resort, but you will lose ALL your data in the process. Don't mess with the cable when msmdownloadtool is working or your phone is going to be permanently bricked. You should only use msmdownloadtool if you've tried everything and nothing is working, or you entered Qualcomm crash dump mode and fastboot/recovery isn't working.

I don't understand
komodo_1 said:
Maybe this thread could be useful
https://forum.xda-developers.com/showthread.php?t=1637847
Click to expand...
Click to collapse
I don't understand this
Then
adb shell
su
rm system/app/SystemUI.apk
exit

basedtobeh said:
Is your bootloader unlocked? If so, you can just boot TWRP via fastboot (boot the img, not installing the zip) and dirty flash the latest OTA.
If nothing works, boot into EDL mode and use msmdownloadtool as last resort, but you will lose ALL your data in the process. Don't mess with the cable when msmdownloadtool is working or your phone is going to be permanently bricked. You should only use msmdownloadtool if you've tried everything and nothing is working, or you entered Qualcomm crash dump mode and fastboot/recovery isn't working.
Click to expand...
Click to collapse
My 6t bootloader unlocked and i don't have boot img

undrahbayar said:
My 6t bootloader unlocked and i don't have boot img
Click to expand...
Click to collapse
Since you uninstalled SystemUI.apk, I'm going to assume you have Magisk and adb/fastboot installed on your PC.
Do you have TWRP installed? If so, just boot into it and dirty flash the latest OTA.
If not, download twrp-3.2.3-2-fajita.img here https://dl.twrp.me/fajita/ and boot into it via fastboot.
On your PC, download the latest OxygenOS from OnePlus website. move the .img you downloaded earlier to your fastboot folder, hold Vol Up + Power until you enter fastboot, back to PC - type into the search bar "cmd" then press enter, type fastboot boot "twrp-3.2.3-2-fajita.img" and press enter. Your phone should boot into TWRP, now copy the OTA file into your phone and install it into both slots (just to be sure).
You're going to lose Magisk if you do this, but you can just reinstall it and it's much better than having a $600 paperweight
Remember that you need to have a working adb and fastboot on your PC to do this.
Some tip: You can backup your data while you're in TWRP via USB mass storage, it's a good idea to do it now just in case your phone is bricked even worse than before.

basedtobeh said:
Since you uninstalled SystemUI.apk, I'm going to assume you have Magisk and adb/fastboot installed on your PC.
Do you have TWRP installed? If so, just boot into it and dirty flash the latest OTA.
If not, download twrp-3.2.3-2-fajita.img here https://dl.twrp.me/fajita/ and boot into it via fastboot.
On your PC, download the latest OxygenOS from OnePlus website. move the .img you downloaded earlier to your fastboot folder, hold Vol Up + Power until you enter fastboot, back to PC - type into the search bar "cmd" then press enter, type fastboot boot "twrp-3.2.3-2-fajita.img" and press enter. Your phone should boot into TWRP, now copy the OTA file into your phone and install it into both slots (just to be sure).
You're going to lose Magisk if you do this, but you can just reinstall it and it's much better than having a $600 paperweight
Remember that you need to have a working adb and fastboot on your PC to do this.
Some tip: You can backup your data while you're in TWRP via USB mass storage, it's a good idea to do it now just in case your phone is bricked even worse than before.
Click to expand...
Click to collapse
i don't want lost my data. my phone twrp installed. https://l.facebook.com/l.php?u=http...v2tKWpgjtH1uNa9qGkEpux3yPIjNDUTQIEPCPb_dVJD7U i don't understand it

He had to delete the wrong systemui apk first, with the commands you quoted
then comes those for apk installation
Code:
adb push SystemUI.apk system/app/SystemUI.apk
reboot
i never tried something like that so I dunno if it would work on all devices, or just on rooted or on no one @ all.
undrahbayar said:
I don't understand this
Then
adb shell
su
rm system/app/SystemUI.apk
exit
Click to expand...
Click to collapse

undrahbayar said:
i don't want lost my data. my phone twrp installed. https://l.facebook.com/l.php?u=http...v2tKWpgjtH1uNa9qGkEpux3yPIjNDUTQIEPCPb_dVJD7U i don't understand it
Click to expand...
Click to collapse
Dirty flashing doesn't wipe your data, but you should definitely back up your data in case something goes wrong.
If you have TWRP installed, just do what I typed on my previous reply. To make it clearer:
1. Download the latest OxygenOS for OnePlus 6T here https://www.oneplus.com/support/softwareupgrade/details?code=9
2. Boot into TWRP (Vol Up + power/Vol down + power, I don't remember which one is for recovery). If it asks for password, enter your PIN number
3. USB mass storage should now be available, you can copy/move files from your phone to PC while in this mode. It's a good idea to backup your data now if you haven't.
4. Copy the OTA file you downloaded into your phone
5. Press Install on TWRP, and select the file you downloaded earlier. It's going to take a while, don't panic.
6. When it has finished, DON'T reboot into system. Instead, go back to TWRP.
7. Press Reboot and choose the other slot (opposite of current slot, so if your current slot is B, press A. if it's A, press B)
8. Install the OTA again (This flashes stock OOS into both slot)
9. Again, DON'T reboot into system, go back to TWRP.
10. Press Reboot in TWRP and choose your previous slot.
11. Boot into system
You're not going to lose data if you do this correctly. But, you're going to lose Magisk if you do this (or maybe TWRP too). Just install Magisk again.
Don't permanently install TWRP on OP 6T because it's going to conflict with Magisk. If you need TWRP, just boot into TWRP.img via fastboot instead of permanently installing it.
I don't exactly know how to flash ROMs on A/B partition devices, but this is what I do and it works everytime. Some steps might be unnecessary, though.

basedtobeh said:
Dirty flashing doesn't wipe your data, but you should definitely back up your data in case something goes wrong.
If you have TWRP installed, just do what I typed on my previous reply. To make it clearer:
1. Download the latest OxygenOS for OnePlus 6T here https://www.oneplus.com/support/softwareupgrade/details?code=9
2. Boot into TWRP (Vol Up + power/Vol down + power, I don't remember which one is for recovery). If it asks for password, enter your PIN number
3. USB mass storage should now be available, you can copy/move files from your phone to PC while in this mode. It's a good idea to backup your data now if you haven't.
4. Copy the OTA file you downloaded into your phone
5. Press Install on TWRP, and select the file you downloaded earlier. It's going to take a while, don't panic.
6. When it has finished, DON'T reboot into system. Instead, go back to TWRP.
7. Press Reboot and choose the other slot (opposite of current slot, so if your current slot is B, press A. if it's A, press B)
8. Install the OTA again (This flashes stock OOS into both slot)
9. Again, DON'T reboot into system, go back to TWRP.
10. Press Reboot in TWRP and choose your previous slot.
11. Boot into system
You're not going to lose data if you do this correctly. But, you're going to lose Magisk if you do this (or maybe TWRP too). Just install Magisk again.
Don't permanently install TWRP on OP 6T because it's going to conflict with Magisk. If you need TWRP, just boot into TWRP.img via fastboot instead of permanently installing it.
I don't exactly know how to flash ROMs on A/B partition devices, but this is what I do and it works everytime. Some steps might be unnecessary, though.
Click to expand...
Click to collapse
i don't fix it. don't work it.

Stuck in Bootloader with Magisk, Boots Correctly Without Magisk

Phone: A6010
OOS: 9.0.17
TWRP: twrp-3.2.3-x_blu_spark_v9.91_op6
Magisk: Magisk-v19.3
PC OS: Manjaro Linux with Android SDK tools
Hello folks. This issue started happening last night. I rebooted the phone (hold down Power button, hit Restart), but when it rebooted, it stayed on the "bootloader unlocked" warning screen for a long time, and would then enter the bootloader. This has never happened before, even after the latest OTA update to 9.0.17 (after which the phone was successfully re-rooted following these instructions.)
If "Power Off" was selected, the screen would turn off without the corresponding buzz from the internal vibrator to show that the phone was powered down. Instead, it would reboot into Fastboot mode and then into the bootloader.
I've tried the following steps to troubleshoot:
1. fastboot boot twrp-3.2.3-x_blu_spark_v9.91_op6.img
adb sideload twrp-3.2.3-x_blu_spark_v9.91_op6.zip and reboot into recovery
adb sideload Magisk-v19.3.zip
Result: stuck at "bootloader unlocked" warning screen & enters bootloader
2. Tried the same steps in #1 but with Magisk v19.4 and 20.0. Same result.
3. Same steps in #1 but flashed Magisk-uninstaller-20191011.zip as the final step. Result, phone boots up correctly but without root.
4. Rebooted into bootloader
fastboot boot twrp-3.3.1-8-fajita.img
copied the same file to phone & Advanced -> Install Recovery Ramdisk -> twrp-3.3.1-8-fajita.img
reboot into Recovery & adb sideload Magisk-v19.4.zip
Same result as before, stuck at warning screen and then into bootloader.
5. Re-did #3 i.e. back to twrp-3.2.3-x_blu_spark_v9.91_op6 and uninstalled Magisk. Phone once again boots up correctly but without root. This is where I am now.
The phone can successfully boot to Recovery from Bootloader. I also tried to power down the phone from Recovery mode, which it did correctly (with corresponding vibrator buzz), but when powered back on would go back to "warning screen"/bootloader issue when Magisk was still installed.
Without Magisk, the phone powers down correctly, boots up correctly, and reboots correctly albeit all without root.
At this point, i've no idea what's going on or how to proceed further. There are some threads discussing MsmDownloadTool but the latest version available is for 9.0.16 in this thread, which i think can't be used for 9.0.17.
Suggestions on how to proceed would be most appreciated. Thank you in advance for your time.

SkyLukewalker said:
Phone: A6010
OOS: 9.0.17
TWRP: twrp-3.2.3-x_blu_spark_v9.91_op6
Magisk: Magisk-v19.3
PC OS: Manjaro Linux with Android SDK tools
Hello folks. This issue started happening last night. I rebooted the phone (hold down Power button, hit Restart), but when it rebooted, it stayed on the "bootloader unlocked" warning screen for a long time, and would then enter the bootloader. This has never happened before, even after the latest OTA update to 9.0.17 (after which the phone was successfully re-rooted following these instructions.)
If "Power Off" was selected, the screen would turn off without the corresponding buzz from the internal vibrator to show that the phone was powered down. Instead, it would reboot into Fastboot mode and then into the bootloader.
I've tried the following steps to troubleshoot:
1. fastboot boot twrp-3.2.3-x_blu_spark_v9.91_op6.img
adb sideload twrp-3.2.3-x_blu_spark_v9.91_op6.zip and reboot into recovery
adb sideload Magisk-v19.3.zip
Result: stuck at "bootloader unlocked" warning screen & enters bootloader
2. Tried the same steps in #1 but with Magisk v19.4 and 20.0. Same result.
3. Same steps in #1 but flashed Magisk-uninstaller-20191011.zip as the final step. Result, phone boots up correctly but without root.
4. Rebooted into bootloader
fastboot boot twrp-3.3.1-8-fajita.img
copied the same file to phone & Advanced -> Install Recovery Ramdisk -> twrp-3.3.1-8-fajita.img
reboot into Recovery & adb sideload Magisk-v19.4.zip
Same result as before, stuck at warning screen and then into bootloader.
5. Re-did #3 i.e. back to twrp-3.2.3-x_blu_spark_v9.91_op6 and uninstalled Magisk. Phone once again boots up correctly but without root. This is where I am now.
The phone can successfully boot to Recovery from Bootloader. I also tried to power down the phone from Recovery mode, which it did correctly (with corresponding vibrator buzz), but when powered back on would go back to "warning screen"/bootloader issue when Magisk was still installed.
Without Magisk, the phone powers down correctly, boots up correctly, and reboots correctly albeit all without root.
At this point, i've no idea what's going on or how to proceed further. There are some threads discussing MsmDownloadTool but the latest version available is for 9.0.16 in this thread, which i think can't be used for 9.0.17.
Suggestions on how to proceed would be most appreciated. Thank you in advance for your time.
Click to expand...
Click to collapse
MSM is your way to go. It will downgrade your phone to 9.0.17 and lock your Bootloader. After that you can unlock it and take the OTA Again. You will lose all your Data. Another thing you can try is to Format Data in TWRP. That will also cause you to loose all your Data but you might be able to boot up with Root.

Mannan Qamar said:
MSM is your way to go. It will downgrade your phone to 9.0.17 and lock your Bootloader. After that you can unlock it and take the OTA Again. You will lose all your Data. Another thing you can try is to Format Data in TWRP. That will also cause you to loose all your Data but you might be able to boot up with Root.
Click to expand...
Click to collapse
Thank you for the reply.
At this point, I'm kinda resigned to losing all data, so i did a backup this morning. However, I need my phone to be functional over this weekend, and will do as you have suggested on Monday after another backup.
Will start with the Format Data in TWRP method first, since i'm running Linux and have to setup a VM with USB passthrough to run Win7 and Msm.
Just to confirm, since i'm already running 9.0.17, is it okay simply to use MsmDownloadTool v4.0.59 if it comes to that? Thanks in advance.
On a sidenote, since data loss is inevitable, once it's confirmed that the phone boots up correctly with root and stock OOS, it may just be worth moving to LOS16 thereafter.

Mannan Qamar said:
MSM is your way to go. It will downgrade your phone to 9.0.17 and lock your Bootloader. After that you can unlock it and take the OTA Again. You will lose all your Data. Another thing you can try is to Format Data in TWRP. That will also cause you to loose all your Data but you might be able to boot up with Root.
Click to expand...
Click to collapse
I had time today, and tried Format Data. Didn't work. Installing Magisk landed the phone in the same error screen.
So the Win7 VM was fired up and the instructions for Msm were followed. The phone is recognized and the drivers were successfully installed, showing up as Qualcomm HS-USB QDLoader 9008 (COM3)
However, when MsmDownloadTool V4.0.59 -- 9.0.16 was launched and Start was pressed, the operation times out with the message "Sahara Communication Failed. Please try again after power off phone."
This is despite powering off using the normal method within OOS itself, or powering off from within TWRP.
Not sure how to proceed. Please help?

SkyLukewalker said:
I had time today, and tried Format Data. Didn't work. Installing Magisk landed the phone in the same error screen.
So the Win7 VM was fired up and the instructions for Msm were followed. The phone is recognized and the drivers were successfully installed, showing up as Qualcomm HS-USB QDLoader 9008 (COM3)
However, when MsmDownloadTool V4.0.59 -- 9.0.16 was launched and Start was pressed, the operation times out with the message "Sahara Communication Failed. Please try again after power off phone."
This is despite powering off using the normal method within OOS itself, or powering off from within TWRP.
Not sure how to proceed. Please help?
Click to expand...
Click to collapse
Could be an issue with the VM. I'd also try to change USB Port or try another Cable.

SkyLukewalker said:
Phone: A6010
OOS: 9.0.17
TWRP: twrp-3.2.3-x_blu_spark_v9.91_op6
Magisk: Magisk-v19.3
PC OS: Manjaro Linux with Android SDK tools
Hello folks. This issue started happening last night. I rebooted the phone (hold down Power button, hit Restart), but when it rebooted, it stayed on the "bootloader unlocked" warning screen for a long time, and would then enter the bootloader. This has never happened before, even after the latest OTA update to 9.0.17 (after which the phone was successfully re-rooted following these instructions.)
If "Power Off" was selected, the screen would turn off without the corresponding buzz from the internal vibrator to show that the phone was powered down. Instead, it would reboot into Fastboot mode and then into the bootloader.
I've tried the following steps to troubleshoot:
1. fastboot boot twrp-3.2.3-x_blu_spark_v9.91_op6.img
adb sideload twrp-3.2.3-x_blu_spark_v9.91_op6.zip and reboot into recovery
adb sideload Magisk-v19.3.zip
Result: stuck at "bootloader unlocked" warning screen & enters bootloader
2. Tried the same steps in #1 but with Magisk v19.4 and 20.0. Same result.
3. Same steps in #1 but flashed Magisk-uninstaller-20191011.zip as the final step. Result, phone boots up correctly but without root.
4. Rebooted into bootloader
fastboot boot twrp-3.3.1-8-fajita.img
copied the same file to phone & Advanced -> Install Recovery Ramdisk -> twrp-3.3.1-8-fajita.img
reboot into Recovery & adb sideload Magisk-v19.4.zip
Same result as before, stuck at warning screen and then into bootloader.
5. Re-did #3 i.e. back to twrp-3.2.3-x_blu_spark_v9.91_op6 and uninstalled Magisk. Phone once again boots up correctly but without root. This is where I am now.
The phone can successfully boot to Recovery from Bootloader. I also tried to power down the phone from Recovery mode, which it did correctly (with corresponding vibrator buzz), but when powered back on would go back to "warning screen"/bootloader issue when Magisk was still installed.
Without Magisk, the phone powers down correctly, boots up correctly, and reboots correctly albeit all without root.
At this point, i've no idea what's going on or how to proceed further. There are some threads discussing MsmDownloadTool but the latest version available is for 9.0.16 in this thread, which i think can't be used for 9.0.17.
Suggestions on how to proceed would be most appreciated. Thank you in advance for your time.
Click to expand...
Click to collapse
Why are you using TWRP from OP6 so old too? Here for OP6T there is newer https://github.com/engstk/android_device_oneplus_fajita/releases/tag/v9.101

elSkelet said:
Why are you using TWRP from OP6 so old too? Here for OP6T there is newer https://github.com/engstk/android_device_oneplus_fajita/releases/tag/v9.101
Click to expand...
Click to collapse
I have updated to the latest TWRP as you have mentioned. The issue still persists when Magisk is installed. Once again, Magisk had to be uninstalled before the phone would boot up properly.
Mannan Qamar said:
Could be an issue with the VM. I'd also try to change USB Port or try another Cable.
Click to expand...
Click to collapse
I tried with 2 different USB ports today. Tomorrow i will reboot the VM, remove the driver, let it re-discover and install the driver from MS (i installed a pre-downloaded driver today) and try again. The cable is the original one that came with the phone, and another one will need to be purchased if the efforts fail. Hopefully it is just the VM acting funny.

SkyLukewalker said:
I have updated to the latest TWRP as you have mentioned. The issue still persists when Magisk is installed. Once again, Magisk had to be uninstalled before the phone would boot up properly.
I tried with 2 different USB ports today. Tomorrow i will reboot the VM, remove the driver, let it re-discover and install the driver from MS (i installed a pre-downloaded driver today) and try again. The cable is the original one that came with the phone, and another one will need to be purchased if the efforts fail. Hopefully it is just the VM acting funny.
Click to expand...
Click to collapse
No that won't be necessary. As the drivers can't be downloaded from MS. Is your phone able to reboot to Recovery? i.e. do you have TWRP Installed? If so, then flash Latest OOS ZIP and TWRP Installer, Reboot and repeat the two above steps. After that Format Data and Reboot. This should allow you to boot up. After that, proceed to root as you normally would. Also, I'd look into getting a Windows Laptop if it doesn't work. As MSM is known to have issues with VM.

Mannan Qamar said:
No that won't be necessary. As the drivers can't be downloaded from MS. Is your phone able to reboot to Recovery? i.e. do you have TWRP Installed? If so, then flash Latest OOS ZIP and TWRP Installer, Reboot and repeat the two above steps. After that Format Data and Reboot. This should allow you to boot up. After that, proceed to root as you normally would. Also, I'd look into getting a Windows Laptop if it doesn't work. As MSM is known to have issues with VM.
Click to expand...
Click to collapse
Yes, i have twrp-3.3.1-x_blu_spark_v9.101_op6t currently installed without Magisk. Will do as you have said tomorrow, since i have also downloaded the full 9.0.17 OOS zip file.
Since budget is very tight at the moment, i will look into borrowing a Windows PC/laptop for awhile to use Msm if the other methods don't work.

SkyLukewalker said:
Yes, i have twrp-3.3.1-x_blu_spark_v9.101_op6t currently installed without Magisk. Will do as you have said tomorrow, since i have also downloaded the full 9.0.17 OOS zip file.
Since budget is very tight at the moment, i will look into borrowing a Windows PC/laptop for awhile to use Msm if the other methods don't work.
Click to expand...
Click to collapse
Wait, wouldn't flashing back to 9.0.17 lock your bootloader? Then you can't enable OEM unlocking, which means you can't unlock the bootloader. You would need to flash MSM 9.0.11 to enable OEM unlocking, then unlock the bootloader before proceeding further. I'm no expert, just thought I'd mention it. Best of luck!!
Sent from my ONEPLUS A6013 using Tapatalk

xRogerxC said:
Wait, wouldn't flashing back to 9.0.17 lock your bootloader? Then you can't enable OEM unlocking, which means you can't unlock the bootloader. You would need to flash MSM 9.0.11 to enable OEM unlocking, then unlock the bootloader before proceeding further. I'm no expert, just thought I'd mention it. Best of luck!!
Sent from my ONEPLUS A6013 using Tapatalk
Click to expand...
Click to collapse
Didn't seem to be an issue, worked correctly and the bootloader remained unlocked.
Mannan Qamar said:
... Is your phone able to reboot to Recovery? i.e. do you have TWRP Installed? If so, then flash Latest OOS ZIP and TWRP Installer, Reboot and repeat the two above steps. After that Format Data and Reboot. This should allow you to boot up. After that, proceed to root as you normally would. ...
Click to expand...
Click to collapse
This worked, and now the phone is booted up into the system WITH Magisk 19.4 installed. Thank you very much! I didn't have to use Msm.
The steps for anyone else facing the same issue that i did:
Reboot into Recovery. This can be done via long-press power button in System and pressing Recovery if TWRP is already installed, or adb reboot bootloader to reboot into the bootloader, and fastboot boot recoveryImage_Filename.img (in my case, it was twrp-3.3.1-x_blu_spark_v9.101_op6t.img)
Enter password/pattern to unlock
Advanced -> ADB Sideload -> adb sideload OOSimage_Filename.zip (in my case, it was OnePlus6TOxygen_34_OTA_024_all_1909112343_d5b1905.zip)
Back
ADB Sideload -> adb sideload TWRPzipFile_Filename.zip (in my case, it was twrp-3.3.1-x_blu_spark_v9.101_op6t.zip)
Back -> Back Arrow
Reboot -> Recovery, and wait for phone to reboot into Recovery
Enter password/pattern to unlock
Advanced -> ADB Sideload -> adb sideload OOSimage_Filename.zip
Back
ADB Sideload -> adb sideload TWRPzipFile_Filename.zip
Back -> Back Arrow
Wipe -> Format Data -> type "yes" and click the blue tick "Enter" key on keyboard.
Back Arrow to Main Screen -> Reboot -> Recovery, and wait for phone to reboot into Recovery
Enter password/pattern to unlock
Advanced -> ADB Sideload -> adb sideload MagiskInstaller.zip (in my case, it was Magisk-v19.4.zip)
Back -> Back Arrow
Reboot -> Power Off to completely power down.
Long-press power button to boot the phone. The issue of being stuck at the bootloader unlocked warning screen was gone. The phone booted into System with Magisk Root installed and working.
Later today, I will install LOS16 with Magisk and report back on how that went. Once again, much gratitude and appreciation to Mannan Qamar for the solution!

SkyLukewalker said:
Didn't seem to be an issue, worked correctly and the bootloader remained unlocked.
This worked, and now the phone is booted up into the system WITH Magisk 19.4 installed. Thank you very much! I didn't have to use Msm.
The steps for anyone else facing the same issue that i did:
Reboot into Recovery. This can be done via long-press power button in System and pressing Recovery if TWRP is already installed, or adb reboot bootloader to reboot into the bootloader, and fastboot boot recoveryImage_Filename.img (in my case, it was twrp-3.3.1-x_blu_spark_v9.101_op6t.img)
Enter password/pattern to unlock
Advanced -> ADB Sideload -> adb sideload OOSimage_Filename.zip (in my case, it was OnePlus6TOxygen_34_OTA_024_all_1909112343_d5b1905.zip)
Back
ADB Sideload -> adb sideload TWRPzipFile_Filename.zip (in my case, it was twrp-3.3.1-x_blu_spark_v9.101_op6t.zip)
Back -> Back Arrow
Reboot -> Recovery, and wait for phone to reboot into Recovery
Enter password/pattern to unlock
Advanced -> ADB Sideload -> adb sideload OOSimage_Filename.zip
Back
ADB Sideload -> adb sideload TWRPzipFile_Filename.zip
Back -> Back Arrow
Wipe -> Format Data -> type "yes" and click the blue tick "Enter" key on keyboard.
Back Arrow to Main Screen -> Reboot -> Recovery, and wait for phone to reboot into Recovery
Enter password/pattern to unlock
Advanced -> ADB Sideload -> adb sideload MagiskInstaller.zip (in my case, it was Magisk-v19.4.zip)
Back -> Back Arrow
Reboot -> Power Off to completely power down.
Long-press power button to boot the phone. The issue of being stuck at the bootloader unlocked warning screen was gone. The phone booted into System with Magisk Root installed and working.
Later today, I will install LOS16 with Magisk and report back on how that went. Once again, much gratitude and appreciation to Mannan Qamar for the solution!
Click to expand...
Click to collapse
Glad to know it worked. MSM should be a last resort but most people use it as a first option to Nuke their phone. And if you want help on installing ROMs, don't hesitate to ask.

Mannan Qamar said:
Glad to know it worked. MSM should be a last resort but most people use it as a first option to Nuke their phone. And if you want help on installing ROMs, don't hesitate to ask.
Click to expand...
Click to collapse
LOS16 was installed successfully with Magisk and i spent nearly 7 hours setting up the phone since opbackup could not be seen by OnePlus Switch, and i had to do everything manually.
Suddenly the screen started flashing all sorts of colours. I rebooted, and the same problem came back, i.e. stuck at the warning screen.
So, i used the instructions you provided and got OOS 9.0.17 booted back up with Magisk 19.4. However, when i try to connect to the phone via USB, even with debugging enabled, the internal storage cannot be read. Says "enable MTP." This is also happening in TWRP even after disabling and re-enabling MTP.
How do i get the phone to see the internal storage again? Please help.

SkyLukewalker said:
LOS16 was installed successfully with Magisk and i spent nearly 7 hours setting up the phone since opbackup could not be seen by OnePlus Switch, and i had to do everything manually.
Suddenly the screen started flashing all sorts of colours. I rebooted, and the same problem came back, i.e. stuck at the warning screen.
So, i used the instructions you provided and got OOS 9.0.17 booted back up with Magisk 19.4. However, when i try to connect to the phone via USB, even with debugging enabled, the internal storage cannot be read. Says "enable MTP." This is also happening in TWRP even after disabling and re-enabling MTP.
How do i get the phone to see the internal storage again? Please help.
Click to expand...
Click to collapse
Format Data in TWRP. For some weird reason, Internal Storage gets messed up after flashing OOS. And the screen issue might have been a Magisk Module or some other error. Maybe an issue with the ROM. I'd certainly try another ROM

Mannan Qamar said:
Format Data in TWRP. For some weird reason, Internal Storage gets messed up after flashing OOS. And the screen issue might have been a Magisk Module or some other error. Maybe an issue with the ROM. I'd certainly try another ROM
Click to expand...
Click to collapse
I'm going to do the whole process all over again, just to be sure, and try to copy the necessary files over to internal storage before flashing Magisk. Will update once the process gets there. I'm going back to rooted OOS for now because nearly 7 hours of setup is not fun in the least for a daily driver phone.

Mannan Qamar said:
Format Data in TWRP. For some weird reason, Internal Storage gets messed up after flashing OOS. And the screen issue might have been a Magisk Module or some other error. Maybe an issue with the ROM. I'd certainly try another ROM
Click to expand...
Click to collapse
I managed to copy over the files in TWRP, with internal storage showing up as Internal Storage (A6013). However, once booted into system, it now shows up as Internal Shared Storage (A6010) with nothing in it. Using the phone's File Manager, the copied files do not show up either.
But going back to TWRP, Internal Storage shows up correctly with the copied files. Did Format Data in TWRP and rebooted into system. Still the same issue. Please help?
Edit: tried doing the same method all over again. This time, the MTP error shows up in TWRP also. Can't see anything anymore.

SkyLukewalker said:
I managed to copy over the files in TWRP, with internal storage showing up as Internal Storage (A6013). However, once booted into system, it now shows up as Internal Shared Storage (A6010) with nothing in it. Using the phone's File Manager, the copied files do not show up either.
But going back to TWRP, Internal Storage shows up correctly with the copied files. Did Format Data in TWRP and rebooted into system. Still the same issue. Please help?
Edit: tried doing the same method all over again. This time, the MTP error shows up in TWRP also. Can't see anything anymore.
Click to expand...
Click to collapse
Well. In such a case MSM is the way to go. I'd recommend using a Windows Laptop. Although as a last resort if try the Fastboot ROMs before MSM. Search OP6T Fastboot ROMs

Mannan Qamar said:
Well. In such a case MSM is the way to go. I'd recommend using a Windows Laptop. Although as a last resort if try the Fastboot ROMs before MSM. Search OP6T Fastboot ROMs
Click to expand...
Click to collapse
I found this thread and downloaded the appropriate Fastboot ROM (9.0.17). Just a couple of questions:
1. do i need to do the persist partition step?
2. where in TWRP do i have to go to do adb push and adb shell?

SkyLukewalker said:
I found this thread and downloaded the appropriate Fastboot ROM (9.0.17). Just a couple of questions:
1. do i need to do the persist partition step?
2. where in TWRP do i have to go to do adb push and adb shell?
Click to expand...
Click to collapse
Those things are not necessary. Just unzip and use the Flasher in the archive. The default one should be sufficient. The others aren't needed.

Mannan Qamar said:
Those things are not necessary. Just unzip and use the Flasher in the archive. The default one should be sufficient. The others aren't needed.
Click to expand...
Click to collapse
Hopefully it works from the VM. Otherwise i will have to do it manually from Linux terminal. Thank you for the advice. Will report tomorrow when the process is done.

[Solved] fastboot loop after turning off the phone

Hi Guys, This morning I was attending a video conference on my Mi 9T, after the conferenece the battery was at 9%, so I turned off the phone (not having a power bank with me at the moment).
Then I went back to my office and connected Mi 9T to a charger, then head off to lunch. When I came back the phone is in fastboot. I tried turning off/on, reboot into system from recovery, and fastboot reboot command using PC. But it always goes back to fastboot. Is there anything else I can do except to flash?
ps. about 10 days ago I have the bootloader unlocked, orangefox reocvery installed (there were errors when trying to install twrp) and rooted (using magisk manager), rom is original stock rom

sparktrix said:
Hi Guys, This morning I was attending a video conference on my Mi 9T, after the conferenece the battery was at 9%, so I turned off the phone (not having a power bank with me at the moment).
Then I went back to my office and connected Mi 9T to a charger, then head off to lunch. When I came back the phone is in fastboot. I tried turning off/on, reboot into system from recovery, and fastboot reboot command using PC. But it always goes back to fastboot. Is there anything else I can do except to flash?
ps. about 10 days ago I have the bootloader unlocked, orangefox reocvery installed (there were errors when trying to install twrp) and rooted (using magisk manager)
Click to expand...
Click to collapse
Official twrp-3.5.2_9-0-davinci should work (you didn't mention your ROM full name and version)
Anyway, you can try without Magisk. Flash the original (not patched by Magisk) boot.img from Fastboot
Btw, that's one reason I prefer installing the Magisk by patching and flashing - in that case you would likely have on your PC the original boot img.
Otherwise, you now have to know exactly what was your stock ROM, download it (to PC) from xiaomiupdater, extract boot.img and flash it

zgfg said:
Official twrp-3.5.2_9-0-davinci should work (you didn't mention your ROM full name and version)
Anyway, you can try without Magisk. Flash the original (not patched by Magisk) boot.img from Fastboot
Btw, that's one reason I prefer installing the Magisk by patching and flashing - in that case you would likely have on your PC the original boot img.
Otherwise, you now have to know exactly what was your stock ROM, download it (to PC) from xiaomiupdater, extract boot.img and flash it
Click to expand...
Click to collapse
I didn't flash the rom, so it is still the original stock.
thanks for the tip boot.img, I will try that

The phone is back to life, thanks to @zgfg
what I have done:
1. download the rom from https://xiaomifirmwareupdater.com/
2. extract boot.img from the rom
3. install and run XiaomiTool V2 to ensure latest usb driver https://www.xiaomitool.com/
4. connect the phone to PC via USB, make sure it is connected by command : fastboot devices
5. flash the boot.img by command: fastboot flash boot boot.img
after that the phone rebooted to system, while the widgets were loading, it crashed and reboot, then it's all back to normal

sparktrix said:
The phone is back to life, thanks to @zgfg
what I have done:
1. download the rom from https://xiaomifirmwareupdater.com/
2. extract boot.img from the rom
3. install and run XiaomiTool V2 to ensure latest usb driver https://www.xiaomitool.com/
4. connect the phone to PC via USB, make sure it is connected by command : fastboot devices
5. flash the boot.img by command: fastboot flash boot boot.img
after that the phone rebooted to system, while the widgets were loading, it crashed and reboot, then it's all back to normal
Click to expand...
Click to collapse
Your phone boots without Magisk but bootloops with Magisk.
It is a common case due to a problem with some Magisk module (Magisk loads all modules when booting)
Do you remember which Magisk modules you had installed?
I'm not using OF but I think it has the interface where you can manage (hence also list) the Magisk modules
Telling you this because you can disable module(s) and try again with Magisk - but let's see first did you have modules installed and which of them

zgfg said:
Your phone boots without Magisk but bootloops with Magisk.
It is a common case due to a problem with some Magisk module (Magisk loads all modules when booting)
Do you remember which Magisk modules you had installed?
I'm not using OF but I think it has the interface where you can manage (hence also list) the Magisk modules
Telling you this because you can disable module(s) and try again with Magisk - but let's see first did you have modules installed and which of them
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it was working with root (magisk manager) for about 10 days, in that duration there were no issues at all. only after sunday morning i truned it off it's stucked in bootloop.
btw, the first boot.img i flashed was not the correct version but enabled me to boot into system (although sluggish and reboots randomly) to see the exact version, after flashing the correct boot.img it's like nothing has happened.
i'm trying to install magisk with patch method now, will report if there is to be any issues.