Locked bootloader with root - OnePlus 3T Questions & Answers

I found this for the oneplus one, does it also work on the 3T ?
Fastboot boot recovery.img
then install the su.zip file
MAKE SURE YOU BACKUP WHILE YOU ARE IN TWRP!!

NO. You could've tried it, only to be presented with a failure message. And if you could, that would've been a security issue.

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Unlocked Bootloader, Can't root? [XT1096]

Not really sure what I'm doing wrong. Last rooted phone was a Nexus 5, and that was of course painless to root and flash ROMs to...
I'm using a Verizon XT1096 with 5.1 on T-Mobile.
So I was able to get the bootloader unlocked via Motorola's website, now that Verizon is allowing them to do so. No problems there. My problem now is that I can flash a recovery, but if it reboots, the recovery is gone. And I can't get any recoveries to flash anything. I can't push an apk, root zip, or even a ROM. Says Installation Aborted, with no other error codes. Even tried CWM and disabling Signature Checking, which gives me more info, saying that the footer is mismatched. Phone does say the bootloader is unlocked though so that shouldn't be it...
Honestly, I'd just like to get it on CM12 until I can get a Nexus 6P.. Can anyone tell me if I'm doing something wrong? Or is there just no way to root yet? I figured even the XT1095 CF-Auto-Root method would work for 5.1, but no dice..
Not sure what to do here. Please move my thread if need be. Don't post here much...
I followed the instructions on the TWRP website (link below) and it worked flawlessly. One thing you have to do is, after running the "fastboot flash recovery twrp.img" command, make sure to manually scroll on the phone and reboot into recovery. Hope that helps...
https://twrp.me/devices/motorolamotox2014.html
There is a partition mismatch. So do this. Download supersu and place it in the phones memory. Boot to fastboot mode and then fastboot boot recovery.img rather than fastboot flash recovery.img. You will boot to twrp, install SuperSU then download twrp from the playstore and install thru the app. It works, that's how I did it. Also when booting to recovery from the fastboot menu choose recovery with the vol up key rather than power button.
RepeatUntilTheEnd said:
I followed the instructions on the TWRP website (link below) and it worked flawlessly. One thing you have to do is, after running the "fastboot flash recovery twrp.img" command, make sure to manually scroll on the phone and reboot into recovery. Hope that helps...
https://twrp.me/devices/motorolamotox2014.html
Click to expand...
Click to collapse
I thought I tried that but maybe not. I've read that some stock ROMs can and will overwrite the recovery upon booting, but I could be wrong. I'll look at that when I get home tonight.
oraixearl said:
There is a partition mismatch. So do this. Download supersu and place it in the phones memory. Boot to fastboot mode and then fastboot boot recovery.img rather than fastboot flash recovery.img. You will boot to twrp, install SuperSU then download twrp from the playstore and install thru the app. It works, that's how I did it. Also when booting to recovery from the fastboot menu choose recovery with the vol up key rather than power button.
Click to expand...
Click to collapse
Thank you, I'll try this tonight when I get home. This may solve it. I think I remember the bootloader spitting something out about a partition mismatch.. Will report back as soon as I try it.
So I went ahead and tried both your guys' methods.
Oraixearl, I figured your solution would work, but it actually didn't, to my surprise. It returned no results, as the root zip didn't end up doing anything.
RepeatUntilTheEnd's solution worked here. I guess I didn't try rebooting the phone after flashing the recovery, before going into it..
So here's what I did.
1.) Boot into bootloader
2.) Fastboot flash recovery [recovery.img]
3.) adb reboot bootloader
4.) Used keys on phone to go into recovery,
5.) Flashed root.zip
6.) Booted into OS, and ran root checker. Worked.
7.) To my surprise, TWRP stuck around, too.
Thank you guys!
TsarProdigy said:
So I went ahead and tried both your guys' methods.
Oraixearl, I figured your solution would work, but it actually didn't, to my surprise. It returned no results, as the root zip didn't end up doing anything.
RepeatUntilTheEnd's solution worked here. I guess I didn't try rebooting the phone after flashing the recovery, before going into it..
So here's what I did.
1.) Boot into bootloader
2.) Fastboot flash recovery [recovery.img]
3.) adb reboot bootloader
4.) Used keys on phone to go into recovery,
5.) Flashed root.zip
6.) Booted into OS, and ran root checker. Worked.
7.) To my surprise, TWRP stuck around, too.
Thank you guys!
Click to expand...
Click to collapse
Strange as it worked for me. I'm glad you got it sorted out tho. Cheers.

Flashing twrp on stock v20i

So I came from a stock lollipop Tmobile h811 non rooted
To stock MM v20i.
Ive tried flashing twrp 3.0 for cm13, and no matter what,
I get failed: (remote unknown command at the end after it sends recovery.
Its already unlocked(bootloader)
Thanks.
[email protected] said:
So I came from a stock lollipop Tmobile h811 non rooted
To stock MM v20i.
Ive tried flashing twrp 3.0 for cm13, and no matter what,
I get failed: (remote unknown command at the end after it sends recovery.
Its already unlocked(bootloader)
Thanks.
Click to expand...
Click to collapse
Type: fastboot boot (path goes here)
You can drag and drop the twrp img into the command window. This will ensure you have the correct path
[email protected] said:
So I came from a stock lollipop Tmobile h811 non rooted
To stock MM v20i.
Ive tried flashing twrp 3.0 for cm13, and no matter what,
I get failed: (remote unknown command at the end after it sends recovery.
Its already unlocked(bootloader)
Thanks.
Click to expand...
Click to collapse
Follow this instruction
http://forum.xda-developers.com/tmobile-g4/development/stock-h811-20i-images-kdz-flashable-t3308227
mingkee said:
Follow this instruction
http://forum.xda-developers.com/tmobile-g4/development/stock-h811-20i-images-kdz-flashable-t3308227
Click to expand...
Click to collapse
That link doesn't really solve the OP's issue. I have the same issue. BUT - your link did show me that I can BOOT the .img file, I can't flash the .img file. I've verified the bootloader is unlocked by the fastboot getvar command.
I'm not sure what to do next. Installing OpenGapps causes a boot loop and the only thing I can do at this point is a factory reset with the OEM recovery since in the boot loop adb is unresponsive.
joesee said:
That link doesn't really solve the OP's issue. I have the same issue. BUT - your link did show me that I can BOOT the .img file, I can't flash the .img file. I've verified the bootloader is unlocked by the fastboot getvar command.
I'm not sure what to do next. Installing OpenGapps causes a boot loop and the only thing I can do at this point is a factory reset with the OEM recovery since in the boot loop adb is unresponsive.
Click to expand...
Click to collapse
The instruction shows how to flash recovery.img with TWRP though I have no clue how to do it.
I got that error the first time I did it, it was because of a misspelling of the command.
If you already unlocked the bootloader, while in fastboot, you only type "fastboot boot" + "path to twrp img on computer" OR instead of typing out the path, you may drag and drop the file into the command window.
Once it boots to twrp, flash twrp from within the booted img. That ensures you have permanent twrp.
If you were able to unlock your bootloader, the only thing stopping you from loading twrp is improper spelling and path to the img. Almost every error I have seen is from not following the directions.
Vseprz said:
If you already unlocked the bootloader, while in fastboot, you only type "fastboot boot" + "path to twrp img on computer" OR instead of typing out the path, you may drag and drop the file into the command window.
Once it boots to twrp, flash twrp from within the booted img. That ensures you have permanent twrp.
If you were able to unlock your bootloader, the only thing stopping you from loading twrp is improper spelling and path to the img. Almost every error I have seen is from not following the directions.
Click to expand...
Click to collapse
OK, just so I understand correctly, the proper sequence of events is to use fastboot to boot TWRP (which I can do) then, once in TWRP, I can then flash the twrp .zip file, right? Does anyone know if the LG's bootloader overwrites the recovery partition upon boot (in other words, do I have to boot straight to recovery after I flash to ensure it sticks?)
Sorry for the obtuse questions, I've got a lot of experience with Samsung flashing back in the KK and LP days, but not MM.
Thanks in advance!!
joesee said:
OK, just so I understand correctly, the proper sequence of events is to use fastboot to boot TWRP (which I can do) then, once in TWRP, I can then flash the twrp .zip file, right? Does anyone know if the LG's bootloader overwrites the recovery partition upon boot (in other words, do I have to boot straight to recovery after I flash to ensure it sticks?)
Sorry for the obtuse questions, I've got a lot of experience with Samsung flashing back in the KK and LP days, but not MM.
Thanks in advance!!
Click to expand...
Click to collapse
So you have flashed 20i which overwrites twrp with the stock recovery.
You then go through the steps for unlocking the boot loader.
After the boot loader is unlocked, you may boot into twrp with the fastboot boot command.
When that boots into twrp, flash twrp from within that to have it stick.
Have a question and maybe someone can help. Me getting carried away installed twrp from external partition. Now i cannot boot into recovery. Tried flashing using flashify and twrp manager. but flashify does not install after reboot and there is no option for h811 in twrp manager. Anyway to fix this?
Sent from my LG-H811 using Tapatalk
Vseprz said:
So you have flashed 20i which overwrites twrp with the stock recovery.
You then go through the steps for unlocking the boot loader.
After the boot loader is unlocked, you may boot into twrp with the fastboot boot command.
When that boots into twrp, flash twrp from within that to have it stick.
Click to expand...
Click to collapse
Yes, that's exactly the steps I do. I've flashed 20i. I used fastboot to boot into twrp. I then "install" the twrp zip file. Says it flashes with no issues. I then reboot the phone. Still has stock recovery.
I've confirmed my bootloader is unlocked with the fastboot getvar all. I've also tried all three versions of twrp available (.1, .2 and .3) and still doesn't work. Yet twrp works fine if I boot it.
joesee said:
Yes, that's exactly the steps I do. I've flashed 20i. I used fastboot to boot into twrp. I then "install" the twrp zip file. Says it flashes with no issues. I then reboot the phone. Still has stock recovery.
I've confirmed my bootloader is unlocked with the fastboot getvar all. I've also tried all three versions of twrp available (.1, .2 and .3) and still doesn't work. Yet twrp works fine if I boot it.
Click to expand...
Click to collapse
How did you confirm you have stock recovery? Did you use adb reboot recovery? Or did you use hardware keys to boot to it? Because if you use hardware keys you still get the initial confirm factory reset. You just have to accept then it boots to twrp.
---------- Post added at 10:44 AM ---------- Previous post was at 10:22 AM ----------
99problemz said:
Have a question and maybe someone can help. Me getting carried away installed twrp from external partition. Now i cannot boot into recovery. Tried flashing using flashify and twrp manager. but flashify does not install after reboot and there is no option for h811 in twrp manager. Anyway to fix this?
Sent from my LG-H811 using Tapatalk
Click to expand...
Click to collapse
If boot loader is unlocked you should load twrp from fastboot.
Vseprz said:
How did you confirm you have stock recovery? Did you use adb reboot recovery? Or did you use hardware keys to boot to it? Because if you use hardware keys you still get the initial confirm factory reset. You just have to accept then it boots to twrp.
---------- Post added at 10:44 AM ---------- Previous post was at 10:22 AM ----------
If boot loader is unlocked you should load twrp from fastboot.
Click to expand...
Click to collapse
Hahaha now that's funny!! I bet I've been through 50 blog posts on various sites to try to figure this out. Having successfully installed Viper I didn't want to take the chance and pass that confirm wipe factory question.
I feel like a complete tool. Seriously, thank you for taking the time to respond to me!
joesee said:
Hahaha now that's funny!! I bet I've been through 50 blog posts on various sites to try to figure this out. Having successfully installed Viper I didn't want to take the chance and pass that confirm wipe factory question.
I feel like a complete tool. Seriously, thank you for taking the time to respond to me!
Click to expand...
Click to collapse
I'm glad it all worked out! :good:
finding I have to re-flash with flashify each time
using twrp-2.8.7.1, I get only the first reboot from there with hardware keys letting me into twrp after accepting the first factory reset prompt and denying the second. After that cant do it again unless I re-flash. Same thing happens if I flash it from within twrp. Can use terminal, su, boot recovery and I am in., or ADB/fatsboot Primarily worried about a soft brick condition. H-811, v1 20i stock, unlocked bootloader and rooted. DE-bloated,
Any Ideas, Thanks
jdoebean said:
using twrp-2.8.7.1, I get only the first reboot from there with hardware keys letting me into twrp after accepting the first factory reset prompt and denying the second. After that cant do it again unless I re-flash. Same thing happens if I flash it from within twrp. Can use terminal, su, boot recovery and I am in., or ADB/fatsboot Primarily worried about a soft brick condition. H-811, v1 20i stock, unlocked bootloader and rooted. DE-bloated,
Any Ideas, Thanks
Click to expand...
Click to collapse
You drop the twrp file
In fastboot folder open command prompt and flash twrp first just rename it simply to recovery.img while in the fastboot folder
Type fastboot flash recovery recovery.img
Or just fastboot flash recovery.img
Then it should boot you into twrp
Once booting into twrp flash the supersu zip in your internal sd
Once you have root and reboot all you have to do is use flashify app and download twrp from the app and flash it Twrp sticks from there.
Sent from my LGMS631 using XDA Free mobile app

TWRP Install Being Rejected??

Hello,
I am new to this forum, but have done a bit of unlocking and installing custom roms on other phones (mostly OPO's, both my old one and friends). But this new OP 3T I just got is giving me some troubles I have not encountered before. I would LOVE to put this into the correct forum, but of course with my being new to this forum...rules...
I am following the standard install over on the TWRP site and on the OP3T, the install finishes and then I reboot and I get a screen that says:
"Your device has been unlocked and can't be trusted. If you don't want to see this screen, please lock your device by "fastboot oem lock" an erase userdata..."
I have never seen this before. Can someone give me a idea what could be going on here? Do I need to re-lock it? What did OP do to their phones!!?!
Oh and also, I am planning on installing LineageOS. Any reason I shouldn't?
Thanks!
Blenderite said:
Hello,
I am new to this forum, but have done a bit of unlocking and installing custom roms on other phones (mostly OPO's, both my old one and friends). But this new OP 3T I just got is giving me some troubles I have not encountered before. I would LOVE to put this into the correct forum, but of course with my being new to this forum...rules...
I am following the standard install over on the TWRP site and on the OP3T, the install finishes and then I reboot and I get a screen that says:
"Your device has been unlocked and can't be trusted. If you don't want to see this screen, please lock your device by "fastboot oem lock" an erase userdata..."
I have never seen this before. Can someone give me a idea what could be going on here? Do I need to re-lock it? What did OP do to their phones!!?!
Oh and also, I am planning on installing LineageOS. Any reason I shouldn't?
Thanks!
Click to expand...
Click to collapse
Is nothing wrong with your device ..What you get is a warning that your bootloader is unlocked ...
You gonna get this every time you want to boot to your ROM or to twrp....
You can proceed further to install any ROM that you like...
I think you can find a guide on XDA forums to disable this warning if you want...
cultofluna said:
Is nothing wrong with your device ..What you get is a warning that your bootloader is unlocked ...
You gonna get this every time you want to boot to your ROM or to twrp....
You can proceed further to install any ROM that you like...
I think you can find a guide on XDA forums to disable this warning if you want...
Click to expand...
Click to collapse
Ok I tried that and a new problem came up!! When I try to reboot into recovery, I do not get TWRP, but the stock recovery that was there originally! Unless they have completely changed the look of TWRP. I will try to upload a picture of it if that helps.
You can't get rid of the bootloader-unlocked warning without re-locking your bootloader, which you really should not do while you have a custom recovery installed.
Are you sure you've flashed TWRP and not just booted it it from a local file on your computer? Try using fastboot to wipe recovery first before flashing TWRP.
Anova's Origin said:
You can't get rid of the bootloader-unlocked warning without re-locking your bootloader, which you really should not do while you have a custom recovery installed.
Are you sure you've flashed TWRP and not just booted it it from a local file on your computer? Try using fastboot to wipe recovery first before flashing TWRP.
Click to expand...
Click to collapse
I followed the Fastboot method on this page (rules won't let me post the link normally): twrp. me/devices/oneplus3t.html
Blenderite said:
I followed the Fastboot method on this page (rules won't let me post the link normally): twrp. me/devices/oneplus3t.html
Click to expand...
Click to collapse
Right on that page (last paragraph of fastboot install method), you will see:
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.
I had a heck of a time with this myself (even reading the above). Even rebooting (after flash TWRP) to recovery (power+vol down), the TWRP install would still not "stick". Had to try multiple times. I also rooted with SuperSU 2.79 at some point in that process, which may or may not have helped TWRP to finally "stick".
redpoint73 said:
Right on that page (last paragraph of fastboot install method), you will see:
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.
I had a heck of a time with this myself (even reading the above). Even rebooting (after flash TWRP) to recovery (power+vol down), the TWRP install would still not "stick". Had to try multiple times. I also rooted with SuperSU 2.79 at some point in that process, which may or may not have helped TWRP to finally "stick".
Click to expand...
Click to collapse
I tried this once before, but after your suggestion to try it several times, it finally worked! Thanks!!
Flash TWRP, reboot, press the volume down key before the phone boots, go into recovery, you should see TWRP flash screen, that usually works but I'm glad you got it going

Installing Magisk Relocks the Bootloader

Hi,
I recently bought a Redmi 8 and installed Magisk through TWRP. It gets installed successfully but relocks the bootloader at the software level (unlock status in developer options says the phone is still locked, but the boot animation says the phone is unlocked).
My Issue is that I cannot perform any root action and I believe the relocked bootloader is the cause. How can I fix this?
I've tried pulling the unlocked the boot.img through adb and patching it through the magisk app but that also has the same result.
Any help will be greatly appreciated.
uz3390 said:
Hi,
I recently bought a Redmi 8 and installed Magisk through TWRP. It gets installed successfully but relocks the bootloader at the software level (unlock status in developer options says the phone is still locked, but the boot animation says the phone is unlocked).
My Issue is that I cannot perform any root action and I believe the relocked bootloader is the cause. How can I fix this?
I've tried pulling the unlocked the boot.img through adb and patching it through the magisk app but that also has the same result.
Any help will be greatly appreciated.
Click to expand...
Click to collapse
If anyone is having the same problem, it took me a while but I was able to fix it. Another is issue was the recovery kept getting wiped with every reboot and I think this was causing the above issue.
These are the steps I took to fix it-
1. Download the respective rom for your phone (I used a stock global rom)
2. Extract the rom, in it there is a folder called images and in that folder there is a file called vbmeta.img. Save this file to your fastboot folder.
3. After you flash the recovery, flash the vbmeta.img using this command "fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img"
After doing the above, I was able to flash magisk and get the root working.
Thanks to @J0SH1X (For the fastboot command to disable the avb)

Question Can't find valid os??

I was locking my bootloader to try to reroot and pass safetynet. So, I factory reset it, set it up, and then went into the bootloader and typed "fastboot flashing lock". I selected yes to confirm the locking of my bootloader and then my phone rebooted. But now my phone says "Can't find valid operating system" and I can't boot into Android. i was able to unlock the bootloader again but now i don't have magisk installed and I can't even boot into Android to install anything. Is there anything i can do to fix this?
Yes, if you're bootloader is unlocked then you can fastboot flash (or use Chrome web based Android Flash Tool) factory images from https://developers.google.com/android/images
If you want to root extract the boot.img from the zip and patch with Magisk, then fastboot flash boot magisk_patched.img after you boot the phone once on stock unrooted kernel.
Thank you. I did it with the flash tool. Then later, it happened again and I realized I could use the boot.img. I'm glad these Google pixels are noob friendly.
Never lock your bootloader unless you know for a fact that you are on bone stock OEM firmware.

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