Develop Bugs

[BRICKED] Stuck in android 8.1 bootloop

I just bricked my phone :crying: :crying:
I wanna get back to the official rom, after trying android P (without make it work).
(the rom is from http://en.miui.com/download-354.html)
But I run the wrong script and take the flash_all_lock.img
And my device is stuck on android 8.1 bootloop (It boot, but i get an animated line loop ...)
Any ideas or tricks before i get it back to warranty ?
Thanks

Unlock bootloader and flash again. You can find a guide to unlock bootloader at the beginning of this guide.

BubuXP said:
Unlock bootloader and flash again. You can find a guide to unlock bootloader at the beginning of this guide.
Click to expand...
Click to collapse
But since I flashed the official rom with data whipe, I'm unable to go to dev option and enter OEM Unlocking .... And Fastboot respond me that my device is locked

Seems like my only option left is to boot into EDL mode ...
But seems fastboot oem edl does not work I don't lnow how to handle the problem

droopeur said:
Seems like my only option left is to boot into EDL mode ...
But seems fastboot oem edl does not work I don't lnow how to handle the problem
Click to expand...
Click to collapse
Have you tried to switch the active slot?
Try if it boots using
fastboot set_active a
or
fastboot set_active b
If not working, can you enter recovery (power on with Volume up button pressed)?
If you can enter recovery, hold down the power button for 3-5 seconds and then press and release the Volume up button, to make commands appear. Then your only hope is to install the OTA update zip from there (copy the OTA in a microSD card, there is a thread where you can find the link to the OTA zip).
In my opinion, "OEM unlocking" in developer options MUST be always keep active, because incidents like this could happen, and because even without modding, an OTA could go wrong resulting in your same situation.
I was in your same situation (OEM unlocking disabled and then I locked bootloader with a custom ROM installed) with a Nexus 5X.
I don't remember well how I fixed it, but I remember entering in Qualcomm download mode (should be the same EDL mode) and loading a file found after many hours of research in strange forums and sites.

BubuXP said:
Have you tried to switch the active slot?
Try if it boots using
fastboot set_active a
or
fastboot set_active b
Click to expand...
Click to collapse
In fact, both work, but my phone still stucked at the bootloader (infinite line animation in both cases).
BubuXP said:
If not working, can you enter recovery (power on with Volume up button pressed)?
If you can enter recovery, hold down the power button for 3-5 seconds and then press and release the Volume up button, to make commands appear. Then your only hope is to install the OTA update zip from there (copy the OTA in a microSD card, there is a thread where you can find the link to the OTA zip).
Click to expand...
Click to collapse
Yes I can enter recovery and I have already tried this, but I always end up with the error:
Code:
E: Unknow volume for path [/sideload/package.zip]
Verifying update package...
Update package verification took 17.3 s (result 0)
Installing update...
E:Error il /sideload/package.zip (Status 1)
Installation aborted
BubuXP said:
In my opinion, "OEM unlocking" in developer options MUST be always keep active, because incidents like this could happen, and because even without modding, an OTA could go wrong resulting in your same situation.
I was in your same situation (OEM unlocking disabled and then I locked bootloader with a custom ROM installed) with a Nexus 5X.
I don't remember well how I fixed it, but I remember entering in Qualcomm download mode (should be the same EDL mode) and loading a file found after many hours of research in strange forums and sites.
Click to expand...
Click to collapse
Yes of course !
But I revert to stock rom with Mi Flash and I click on Flash all and lock, since the telephone should have been "brand new" it should not have any problems but ...
I have to enter EDL mode, but don't know how to do it since modified fastboot executables does not activate it it just reboot the phone...
Deep flash cable may help but not shure if it works, or I may have to disassemble the device to find EDL pins...

after unlock bootloader type fastboot flashing unlock_critical and flash with miflash tool

LUNARIO said:
after unlock bootloader type fastboot flashing unlock_critical and flash with miflash tool
Click to expand...
Click to collapse
But since I can't activate OEM I can't unlock bootloader....

try this http://www.xiaomitool.com/ not sure if it works on our phone but maybe can unlock the bootloader so you can use miflash

Have you sideloaded the zip? I think it's better to copy the OTA zip to microSD than ADB sideload.
droopeur said:
I have to enter EDL mode, but don't know how to do it since modified fastboot executables does not activate it it just reboot the phone...
Deep flash cable may help but not shure if it works, or I may have to disassemble the device to find EDL pins...
Click to expand...
Click to collapse
There should be only two methods for entering EDL:
1- request authorization in en.miui.com forum. Sometimes the admins accept requests to give an account one EDL flash permission (but I don't know if it works with AndroidOne devices).
2- finding the test point in the phone's motherboard.

Hi guys,
i tried to install this twrp but it doesnt work...
so i searched on internet and i found another article, i tried to check the current partition and install in another way
for first:
fastboot getvar current-slot
after i do this
fastboot boot_b recovery.img
and then
fastboot set_active b
so nothing to do....but right now my MI A2 lite not boot.
i try again to check my partition but this time i have no replay.
i have unlocked bootloader but i cant go to recovery and i cant boot!!
someone can help me please?

I HAVE THE SAME PROBLEM
everything you said is completely simillar to mine. Can someone help us? Or did you already fix it? Please help me i need my phone working.

I have same problem fastboot flash but after that, it started to reboot automatically. The phone was automatically turning off and on. I again did a "clean all and lock" via miflash tool but still now, no result!
I can boot into recovery without having any problem. But when I boo to setup country date....etc, it starts its auto rebooting process,
Any help ?

droopeur said:
But since I can't activate OEM I can't unlock bootloader....
Click to expand...
Click to collapse
Same situation here. I am desperate!! Did you solve it?

Isso resolve
steledama said:
Same situation here. I am desperate!! Did you solve it?
Click to expand...
Click to collapse
gadgetsfarm.com/download-mi-a2-lite-fastboot-rom-v9-6-4-download/[/url]

How to unbrick?
Hey guys. I bricked my Mi2 Lite as well. Is there any step by step way to unbrick?

had the same problem, was stuck in the bootloop even after I flashed img with MiFlash! NOTE: MY BOOTLOADER WAS UNLOCKED!!! (LUCKLY I DID NOT TRIED FLASH ALL AND UNLOCK!)
headed to this thread
Code:
fastboot flashing unlock
fastboot flashing unlock_critical
did not work, I get error saying FAILED
but after i used
Code:
fastboot oem edl
I went to MiFlash and used "Clean all" option (again note DON'T use "Clean all and lock"!!!). It took around 5 minutes to flash and my notif. light blinked whole the time. After it say "Success" I was able to normaly boot the phone again

Find "Mi A2 Lite toolkit V 1.0.4.2" and use it to flash stock 8.1, it will do all the magic with a few clicks, just don't interrupt it until your phone restarts and you get the "Welcome" screen. After you can do the upgrade to Pie via OTA.

Hi, where i can find MI A2 Lite Tool Kit? i open my device and i can put in EDL mode., my computer detect my pone in EDL mode, but i can not know do.
I like bypass FRP, can anybody help me
Thanks.
mr_techno said:
Find "Mi A2 Lite toolkit V 1.0.4.2" and use it to flash stock 8.1, it will do all the magic with a few clicks, just don't interrupt it until your phone restarts and you get the "Welcome" screen. After you can do the upgrade to Pie via OTA.
Click to expand...
Click to collapse

Hi all,
I also had same problem and I just resolve it.
My phone was in bootloop mode after stock rom flashing...
You don't need apply "fastboot oem edl" !
Just be sure your device is unlocked.
Download first stock rom (V9.6.4.0.ODLMIFF Firmware for Mi A2 Lite). If you flash last ROM, it don't work.
Flash it with XiaoMiFlash tool (don't forget to enable "Clean All") in bottom of the tool.
After reboot, you can apply OTA updates.
Enjoy !

"This MIUI version can't be installed on this device"

Bricked with a locked bootloader - "This MIUI version can't be installed on this device"
I can get to "adb sideload" and fastboot, but the bootloader is locked
Can I unlock the bootloader with EDL? Can I access EDL with an EDL-cable? Or do I need to open the phone and short the EDL pins?
Can I recover the phone from a Linux computer? Or do I need Windoze?
Is it even possible to un-screw this phone?
Any help appreciated.

go vegan said:
Bricked with a locked bootloader - "This MIUI version can't be installed on this device"
I can get to "adb sideload" and fastboot, but the bootloader is locked
Can I unlock the bootloader with EDL? Can I access EDL with an EDL-cable? Or do I need to open the phone and short the EDL pins?
Can I recover the phone from a Linux computer? Or do I need Windoze?
Is it even possible to un-screw this phone?
Any help appreciated.
Click to expand...
Click to collapse
how did you do this?

Redmi 4A abdal said:
how did you do this?
Click to expand...
Click to collapse
1- Checking if this problem is still a problem with custom ROMs; it is, and thus I believe it to be a hardware fault.
2- Done testing, re-install stock stock ROM, lock bootloader via adb; bricked phone.

go vegan said:
1- Checking if this problem is still a problem with custom ROMs; it is, and thus I believe it to be a hardware fault.
2- Done testing, re-install stock stock ROM, lock bootloader via adb; bricked phone.
Click to expand...
Click to collapse
ok, you can run edl mode but its no good for you, its already locked by xiaomi, ( go ing to fastboot mode and give commands something like this " fastboot boot edl")
* do you see padlock lock sign when you go to fastboot mode
* try to flash vbmeta in fastboot mode
* try again to flash correct version miui fastboot rom with mi flashing tool with out selecting lock bootloader

I can get to fastboot by holding power+vol-down. There's no lock icon.
On Ubuntu, I don't think fastboot is compiled to support rebooting into edl. I tried editing the source, and I'm not sure if I did it right, but the binary I built did not boot the phone into edl.
Using these commands:
Code:
fastboot flash vbmeta /tmp/platform-tools/vbmeta.img
Code:
fastboot --disable-verity flash vbmeta /tmp/platform-tools/vbmeta.img
Code:
fastboot --disable-verity --disable-verification flash vbmeta /tmp/platform-tools/vbmeta.img
They all give the same result:
Code:
target reported max download size of 804274176 bytes
sending 'vbmeta' (4 KB)...
OKAY [ 0.006s]
writing 'vbmeta'...
FAILED (remote: Flashing is not allowed in Lock State)
finished. total time: 0.007s

go vegan said:
I can get to fastboot by holding power+vol-down. There's no lock icon.
On Ubuntu, I don't think fastboot is compiled to support rebooting into edl. I tried editing the source, and I'm not sure if I did it right, but the binary I built did not boot the phone into edl.
Using these commands:
Code:
fastboot flash vbmeta /tmp/platform-tools/vbmeta.img
Code:
fastboot --disable-verity flash vbmeta /tmp/platform-tools/vbmeta.img
Code:
fastboot --disable-verity --disable-verification flash vbmeta /tmp/platform-tools/vbmeta.img
They all give the same result:
Code:
target reported max download size of 804274176 bytes
sending 'vbmeta' (4 KB)...
OKAY [ 0.006s]
writing 'vbmeta'...
FAILED (remote: Flashing is not allowed in Lock State)
finished. total time: 0.007s
Click to expand...
Click to collapse
Try to unlock bootloader using cmd and then vbmeta

T.Y.M.SAI said:
Try to unlock bootloader using cmd and then vbmeta
Click to expand...
Click to collapse
I'm not sure what that means.

go vegan said:
I'm not sure what that means.
Click to expand...
Click to collapse
There are 2 ways to unlock bootloader
1. Official way using Mi flash tool
2. Unofficial way using cmd
There are lots of videos on how to unlock bootloader using cmd go and try them
Most important is to keep your phone charged

T.Y.M.SAI said:
1. Official way using Mi flash tool
2. Unofficial way using cmd
Click to expand...
Click to collapse
1- That requires access to a working phone.
2- All I'm finding is instructions for how to type "fastboot oem unlock" on a Windoze computer.

go vegan said:
1- That requires access to a working phone.
2- All I'm finding is instructions for how to type "fastboot oem unlock" on a Windoze computer.
Click to expand...
Click to collapse
Did you found a way to fix the phone or unlock bootloader?

You have 2 ways to get out of this situation.
1. Try to unlock the bootloader with the Mi account you used last time.
2. If couldn't unlock, then switch to EDL mode. Use a no auth programmer to flash the correct variant fastboot ROM and the device should boots up. Then add account again and wait for 168 hours for unlocking.
Since we've got no auth programmer for Sm6125 we could use EDL mode freely.

Hi there @go vegan , have you already fix your phone again? because i also got the same situation on my redmi 6. or is there anybody who can help? thanks

Hi all add me to the list with a k20pro.
The device was unlocked at the start, i got MIUI 12.5 global and flashed with miflashtool.
but wipe and lock was active.
now the phone comes up to the recovery menu and says the miui version is not for this device.
When I try to flash to another version, miflashtool says the device is locked,
when I try to unlock while using the account the device is registered in, miunlock says go to settings >developer options> mi unlock status.
Gave it to a repair shop for 1.5 months and nothing. I live in Iran so no authorized service centers here.
I have access to fast boot mode and recovery.
I tried xiaomitoll V2 which had a specific question asking if my device would show This MIUI version can't be installed on this device in phone is bricked option. It goes to get china official Rom but then errors.
I'm a noob here so any help would be great, tnx.

I have encountered the same problem a few hours ago with my beloved Redmi K20 Pro. My heart became gloomy thinking that I have no way left other than having to take to an authorized service centre where they will rip off the back cover. But then I stumbled upon this simple solution that took me a minute or two. This is how I solved it:
Entered the fastboot mode
Connected the phone to my laptop using the USB cable
Opened the official Mi Unlock Tool and logged in with my Mi account, and
Clicked on the beautiful UNLOCK button!
Boom! The phone is back to its vibrant life! I'm just happy again!

when I try to unlock while using the account the device is registered in, miunlock says go to settings >developer options> mi unlock status.

TECHtacian said:
I have encountered the same problem a few hours ago with my beloved Redmi K20 Pro. My heart became gloomy thinking that I have no way left other than having to take to an authorized service centre where they will rip off the back cover. But then I stumbled upon this simple solution that took me a minute or two. This is how I solved it:
Entered the fastboot mode
Connected the phone to my laptop using the USB cable
Opened the official Mi Unlock Tool and logged in with my Mi account, and
Clicked on the beautiful UNLOCK button!
Boom! The phone is back to its vibrant life! I'm just happy again!
Click to expand...
Click to collapse
Hi! Where can I download Mi Unlock Tool?

UnDevelopedDeveloper21 said:
Hi! Where can I download Mi Unlock Tool?
Click to expand...
Click to collapse
Apply for permissions to unlock Mi devices
en.miui.com

The solution to the problem is simple.
into fast boot mode,
Run unlock again!! Obviously it's locked. When unlocking is executed,
the same screen may appear again. Please do a reboot. You will definitely see the MIUI installation screen.

Device: Redmi note 7S
I found a solution and it worked for me:
1.Download the bat file and execute in your windows pc : https://drive.google.com/file/d/1NqPotx06yRuhPsOdEAdS4JNsk7qWWchF/view
2. After that use the MI unlocker tool to unlock the device.
3, Use mi flasher to flash the Rom.
After the hours of research in the internet i found the solution.
Thanks

Shiva5558 said:
Device: Redmi note 7S
I found a solution and it worked for me:
1.Download the bat file and execute in your windows pc : https://drive.google.com/file/d/1NqPotx06yRuhPsOdEAdS4JNsk7qWWchF/view
2. After that use the MI unlocker tool to unlock the device.
3, Use mi flasher to flash the Rom.
After the hours of research in the internet i found the solution.
Thanks
Click to expand...
Click to collapse
What do you mean by "execute in your windows pc"? Sorry for asking

How To Guide [INFO] Bootloader Unlock reference guide

Hello Everyone,
This is going to be a detailed post regarding unlocking your OnePlus 9 Pro’s Bootloader for anyone who is new to this or just wants a reference guide.
Note : This is only for Global / Europe / Indian models [Non T Mobile]. Guide for T Mobile bootloader unlocking is present here
Things to know before unlocking Bootloader:
(Edit: Apparently, Unlocking Bootloader after 11.2.3.3 retains L1 but still YMMV) Your L1 license is downgraded to L3 while the bootloader remains unlocked on your device. If in future you wish to re-lock it then the L1 license is restored without any hassle and everything works just fine.
Some apps partially or completely stop working. 2 of the most noticeable apps I have noticed personally are Netflix and Google Pay. Netflix becomes no longer installable/updatable from Play Store but sideloading and using it works just fine (Apart from the L3 license), whereas Google Pay straight up often refuses to work even when Magisk isn’t installed.
Unlocking your bootloader will wipe your storage! Please keep this in mind before proceeding to unlock your bootloader.
OnePlus does not void your warranty if you choose to unlock your phone’s bootloader, so your warranty remains perfectly intact.
Pre-requisites:
A computer having the latest platform tools installed
OnePlus 9 Pro running on the latest available OxygenOS firmware
USB Cable
30+% of charge
Steps:
(Optional) Flash the latest OxygenOS Firmware twice on your device, to ensure that both the slots on your device are populated with the same latest firmware.
Go to Settings > About phone and tap on “Build Number” about 7 times to enable Developer Options
Go to Settings > System > Developer options and enable the toggle option saying “OEM unlocking”
Go to Settings > System > Developer options and enable the toggle option saying “USB debugging”
(Optional) Ensure that ADB is functioning properly.
Connect your device to your system
Wait for the drivers and other software to finish installing
Once your device is properly visible, open a new shell and type
Code:
adb devices
Your phone should be getting a prompt asking to allow USB debugging for your system, Tap Allow
Now
Code:
adb devices
should be listing your device serial number properly
Boot to Fastboot by either:
Typing the command
Code:
adb reboot bootloader
in a shell using adb
Powering off the phone and then pressing and holding Vol Up and Vol Down while pressing down Power in order to boot to Fastboot mode
Powering off the phone and then Pressing and holding Vol Down while pressing Power in order to boot to Recovery Mode first and then Rebooting to Bootloader through it
Enabling “Advanced Reboot” in developer options and choosing the Bootloader option in the power menu
Once in Bootloader, connect your device to your system and run
Code:
fastboot devices
. It should list your phone’s serial number along with the text ‘fastboot’ written next to it.
Now type in the command:
Code:
fastboot flashing unlock
Your phone’s screen should now be asking for confirmation regarding Bootloader Unlock. Use the volume keys to navigate to the “Proceed” option and using the Power Button to confirm
Your device should now begin formatting itself and would reboot soon
Congrats! You just unlocked your OnePlus 9 Pro!

At least 11.2.3.3 retains Widevine L1 even if you unlock bootloader.
Older version had L3 problem, though.

AndroPlus said:
At least 11.2.3.3 retains Widevine L1 even if you unlock bootloader.
Older version had L3 problem, though.
Click to expand...
Click to collapse
What variant do you have ? I unlocked bootloader on my Indian variant running 11.2.3.3 and I still lost L1

oddlyspaced said:
What variant do you have ? I unlocked bootloader on my Indian variant running 11.2.3.3 and I still lost L1
Click to expand...
Click to collapse
I unlock + magisk mine once updated to OOs 11.2.3.3 LE15BA and L1 state was maintained too

@oddlyspaced : As a side effect, once bootloader is unlocked, I've notice that adb command " adb reboot bootloader " isn't working anymore too.
Vol- + poweron combo still working to go there, and I can also use developer option to tick the Advanced Reboot too that have the same effect and allows to reboot whether in fastboot or recovery

Fre$h said:
@oddlyspaced : As a side effect, once bootloader is unlocked, I've notice that adb commande " adb reboot bootloader " isn't working anymore too.
Vol- + poweron combo still working to go there, and I can have use developer option to tick the Advanced Reboot too that have the same effect and allows to reboot whether in fastboot or recovery
Click to expand...
Click to collapse
That's pretty weird. On my end everything is standard. Maybe you should try relocking and unlocking if you don't care about L1. Who know's what might end up getting ****ed in software.

On BA (EU) I can confirm L1 after unlock.

Nah ^^ Advanced Reboot does the job, so I'll be fine with that

dreinulldrei said:
On BA (EU) I can confirm L1 after unlock.
Click to expand...
Click to collapse
OOO Seems like EU Builds don't lose L1. Can you confirm if 'adb reboot bootloader' is working for you or not ? That might lead to a conclusion regarding EU builds.

Never use ADB for this; but pressing Vol Up and Down while turning on does the same. And it works, as well as extended reboot option via power key.

To clarify: I also use Magisk and Magisk Hide, just in case this is of interest.

Still L1 on 11.2.2.2AA as well after unlocked.
Also never had a problem with adb reboot bootloader or fastboot commands.

I used the command 'fastboot oem unlock' and not 'fastboot flashing unlock' yet retained widevine L1 (11.2.2.2 global/magisk stable/lsposed)

FYI, When you install the OnePlus drivers, the platform tools get installed as well, to :
C:\Program Files (x86)\OnePlus USB Drivers\Android

I tried locking my 9pro's bootloader and the device got soft bricked and did not boot, so I had to unlock bootloader again in order to make it function. Surprisingly L1 is intact now! wow!

how unlock bootloader for coloros

avid_droid said:
I'm back on Oneplus and noticed that my OEM unlock is greyed out. Tmo variant.
Click to expand...
Click to collapse
See this guide for T-Mobile variant...
How To: Unlock the T-Mobile Bootloader
Hello all, this is a quick and simple guide to unlocking your T-Mobile locked bootloader. Just a reminder: unlocking the bootloader will wipe your data. The instructions here will apply to all T-Mobile OnePlus devices. Unlock your SIM. Some...
forum.xda-developers.com

I've updated the Guide to reflect on T Mobile bootloader unlock and modified the statement regarding L1.

Can I still return the phone after unlocking bootloader?

How do I relock bootloader?

[Guide] Unlock Bootloader: T-Mobile [Nord N10 5G] (BE2025)

Prep
Download Android SDK
Enable Developer Options
Enable USB Debugging mode (Optional)
Enable OEM Unlocking
Info Needed
IMEI number
Dial
Code:
*#06#
Serial # (also listed with unlock code step)
Settings/About Phone/Status/Serial number
Unlock Code from bootloader/fastboot mode
Enter Fastboot mode (2 options)
USB Debugging (adb reboot bootloader)
from Power Off or Reboot
Fastboot command
Code:
fastboot oem get_unlock_code
OnePlus Site
https://account.oneplus.com/signup/
Create an Account
Oneplus/T-mobile Unlock Bootloader Page
https://www.oneplus.com/unlock_token
Enter Device info
Note: It took OnePlus 7 days to send my Unlock token
Send unlock Token to Device
Reboot to bootloader/fastboot
Send Unlock Token (Use full Filename)
Code:
fastboot flash cust-unlock unlock_token.bin
Unlock Bootloader
Code:
fastboot oem unlock
Confirm unlock
Select Unlock the bootloader
Scroll with the Volume button
Select with the Power button
Warning: Device will reboot and factory reset (wipe user data)
​
Options
Root
Root N10 5G using Magisk for factory stock
More
https://forum.xda-developers.com/t/oneplus-nord-n10-5g-hardware-variants.4221237/
Oneplus Nord N10 5G hardware variants
Does anyone have the full list of hardware variants? BE2025 - Metro, maybe t-mobile? Be2026 - NA BE2028 - EU? BE2029 - Global I bought the BE2026 straight from oneplus in the US and realized that the situation isn't quite like it is with the...
forum.xda-developers.com
Credits
How to Unlock Bootloader on OnePlus (Unlocked / T-Mobile)
Here is a complete walk-through and guide on how to unlock bootloader on OnePlus phones. Whether you are looking to install a custom ROM or trying to root
teamandroid.com

Reboot to Bootloader/Fastboot
Reboot or Power Off
Hold Volume Up and Power Buttons
Select Restart
When the screen goes black
Hold the Volume Down button till you see the language screen
Select your language (English) with touch or Scroll (volume buttons) Select (Power button)
Select Advanced
Select Reboot to fastboot
Confirm Reboot to fastboot

Enable Developer Options
Select Settings/About phone/Build number
Tap Build number till you see
You are now a developer!
Go back to the Settings page
Select System
Developer Options will now be available.

Enable USB Debugging mode

Enable OEM Unlocking

Unlock Code from bootloader/fastboot mode

Screenshots

I was able to get the OEM unlock toggle to show after running a debloat script in another thread. I applied for my token so I'm super stoked for finally getting to unlock. I planned to make a toolkit for this device as well written in Python

So I was able to finally unlocky bootloader now that I have my token. I tried to install a custom ROM, followed the steps exactly, and upon ADB failing at 47% on the side load I reboot to get into fastboot and ended up in 900E mode (semi-brick state). I flashed stock in EDL and reunlocked again... This time I switch the slot from a to b and it did this same thing again! I'm not even sure why this happens if others haven't experienced it

Looks like I'll be sticking with stock root. Trying to flash any rom via adb sideload as shown in the instructions fails at 47%. After trying to reboot to bootloader after that it just semi-bricks. Trying to switch slots after unlocked also causes it to brick. I'm sorry, but this pisses me off a little bit. I'm not sure how others aren't running into this issue.

EDIT:
Turns out because I didn't take the OTA to Android 11 that's what caused it. It was because of the Android 10 bootloader. All is working finally! I'm truly sorry for the troubles..

Does this work with Metro By T-Mobile OnePlus Nord N10 5g?

So, I'm a little confused. The unlock code from fast boot, is it both lines as a single code? I tried to submit like that and the oneplus page says must be 64 characters. What am I missing?

nkolvek said:
So, I'm a little confused. The unlock code from fast boot, is it both lines as a single code? I tried to submit like that and the oneplus page says must be 64 characters. What am I missing?
Click to expand...
Click to collapse
Yes the unlock code is both lines put together with no spaces. Make sure all the 0 are zeros. I would triple check that you copied the code down right. The code should be 64 characters long. I had trouble with the unlock token link not working so I had to contact the Oneplus support on their website. To save you time I would find your serial number, unlock code, Imei number and your PCB number. This way you don't have to do the back and forth that I had to do for over a month. Even if they don't ask for it, just give them the info, it should save you time. Or if you are tech savvy I believe you can flash a different version of your phone to bypass the need for a unlock token. You might also try to send a direct message to an active senior member in one of these N10 forums. Good luck

Question How to go back to stock MIUI and re-lock bootloader?

My Poco F3 is Global, but I've heard people say that re-locking global results into a brick. Is this true? I want to go back to stock MIUI and re-lock my phone.

Read this thread. https://forum.xda-developers.com/t/how-to-flash-a-stock-rom-alioth.4355797/

Yeah you can download a Fastboot ROM from xiaomifirmwareupdater.com & flash it through Mi Flash. By default Mi Flash will lock your bootloader.
But be careful to choose the right ROM for the right region & that the USB connection is stable.
Flashing ROMs is dangerous. Speaking from experience ...

Actually l unlocked Mi6x bootloader but didnt installed/flashed anything. It has China ROM. How to re-lock it?

sunny155 said:
Actually l unlocked Mi6x bootloader but didnt installed/flashed anything. It has China ROM. How to re-lock it?
Click to expand...
Click to collapse
"fastboot oem lock" in fastboot mode locks the bootloader.
This will also wipe your phone, so proceed accordingly.

Thank you! Worked perfectly

user0u said:
"fastboot oem lock" in fastboot mode locks the bootloader.
This will also wipe your phone, so proceed accordingly.
Click to expand...
Click to collapse
HI,
I would like to relock the bootloader on my Xiaomi Mi9T Pro and it's not a problem to lose the data because I changed my phone and transferred everything.
I already turned off find device and signed out Xiaomi account.
I just boot the phone in fastboot mode and digital on command prompt "fastboot oem lock"?
Does the phone restart by itself formatting everything?
I have the original ROM, TWRP and I don't have root.
Let me know if I've forgotten anything.
A thousand thanks.

bricca said:
HI,
I would like to relock the bootloader on my Xiaomi Mi9T Pro and it's not a problem to lose...
Click to expand...
Click to collapse
Yes, you can do that. The phone does everything itself after you enter the command.
Also remove your password. I don't know if it has any effect on anything but I remove it just in case.

You'll need to go out a number of actions in order to restore stock MIUI and lock the bootloader on your Xiaomi device. Please be aware that depending on the precise model of your Xiaomi gadget, these instructions may differ somewhat. If you follow them wrong, you risk bricking your device or encountering other problems. Be sure to move cautiously and pay close attention to the directions. Here is an overview:
Backup your data: Before continuing, make sure that all of your vital data has been backed up, since the operation might delete your device.
Download the MIUI stock ROM here: To locate the stock MIUI ROM for your particular smartphone model, go to the MIUI website or the Xiaomi forums. Your computer should download the ROM.
On your Xiaomi handset, go to Settings > About phone and repeatedly touch on the MIUI version to activate Developer options. This will allow USB debugging. Then, enable USB debugging by going to Settings > Additional settings > Developer options.
Unlock bootloader (if locked): If the bootloader on your device is locked, you must do so first. Visit the Xiaomi unlocking page and follow the steps there to accomplish this. Please be aware that removing the bootloader will erase all of the data on your device.
Install ADB and Fastboot: Install the Android Debug Bridge (ADB) and the Fastboot software on your PC. The platform tools are available for download from the official Android developer website.
To enter Fastboot mode on your Xiaomi smartphone, turn it off, then hold down the Power and Volume Down buttons at the same time until the Fastboot logo appears on the screen.
Connect your device to the computer: To connect your Xiaomi gadget to the computer, use a USB cord.
Flash the MIUI stock ROM: Go to the directory where the ADB and Fastboot utilities were installed on your computer by opening a command prompt or terminal window and selecting it. To see if your device is recognised, use the command: Continue to the next step if your device is listed. If not, check to see if the right drivers are installed.