Can i disable OEM unlock after install TWRP? - Samsung Galaxy J2 Questions & Answers

So yesterday i alerady install TWRP on Samsung J2 prime SM-G532G/DS for Adoptable SD card and i don't root my phone
So here my question: can i disable OEM unlock after i install TWRP? I see on many forum suggest that i should keep it on but i didn't root my phone and i only use it for turning my SD card to Internal storage
Help pls

OEM unlock allows you to flash and keep using unsigned images, like TWRP. If you disable OEM unlock, your phone will tell you that you have unauthorized software and will not work. So having OEM unlock on is mandatory for TWRP.

Same case with me. My device is J5 Pro SM-J530Y with OS stockrom Nougat 7.0 (No root). I want to disable OEM Unlock after install TWRP/OrangeFox to pass safety net. If OEM Unlock enable, CTS Profile always false. Firstly, i change TWRP recovery with stock recovery, then i disable OEM Unlock but always bootloop. How to pass safety net test (CTS Profile) if OEM Unlock is enabled?
Sorry my english is bad.

Related

They found a fix for Nougat bricked phones in N6 thread!

As title says, but we need a working backup. Mine is broken, can someone upload a working one, plz?
This is the howto:
1. Flash a stock image (I used the August stock image MTC20F)
2. Fastboot flash TWRP 3.0.2-0
3. Boot into TWRP
4. Select Wipe -> Advanced Wipe -> Select and repair each partition individually (some won't be able to, and that's fine, just move on to the next one)
5. Restore a full nandroid backup (make sure everything is selected) and reboot
6. You should now be free of the never ending boots, and if your device is bootlooped at this point (stuck at the boot animation), you can just flash stock again.
Thanks for this solution. But I have a problem because after installing the rom file .tot have a locked bootloader, and at this moment I can not do flash twrp.
In order to unlock the bootloader command "fastboot oem unlock" I get the answer that it is not possible. NTR it can not unlock it.
Goes some way to upload twrp with a locked bootloader or a way to unlock?
Danielf85 said:
Thanks for this solution. But I have a problem because after installing the rom file .tot have a locked bootloader, and at this moment I can not do flash twrp.
In order to unlock the bootloader command "fastboot oem unlock" I get the answer that it is not possible. NTR it can not unlock it.
Goes some way to upload twrp with a locked bootloader or a way to unlock?
Click to expand...
Click to collapse
My bootloader is locked, too. The only way to write to the phone seems to be via download mode, but flashing LGH790AT-00-V10f-NXS-XXX-OCT-03-2015-32G-MDA89E-US.tot doesn't work...
To install twrp we need to unlock the bootloader.
However, when the command "fastboot oem unlock" system gives the answer
FAILED (remote: oem unlock is not allowed)
Then how to unlock?
Danielf85 said:
To install twrp we need to unlock the bootloader.
However, when the command "fastboot oem unlock" system gives the answer
FAILED (remote: oem unlock is not allowed)
Then how to unlock?
Click to expand...
Click to collapse
There's really nothing you can do to force an unlock. If you can adb sideload a full OTA zip (say for 7.0) from Google and get that to boot up, that's pretty much your best bet.
Sent from my Nexus 5X using Tapatalk
I mean, the new unlock command is:
fastboot flashing unlock
oc2 said:
I mean, the new unlock command is:
fastboot flashing unlock
Click to expand...
Click to collapse
On Nexus 5X both commands can be used (oem unlock and flashing unlock)
I followed all the steps except I can't boot to recovery...when I try (manually via ADB or automatically using Wug's tool) it just goes back into the bootloop. I can't even boot temporarily to recovery (without flashing). I'm getting close to throwing in the towel...
Did not work for me, sadly
Edit: Here's how I managed to fix the problem
1. Moved Nandroid backup to PC.
2. Download factory image MTC20F from https://developers.google.com/android/nexus/images.
3. Install factory image (This will erase all data on your phone so move your files to your PC).
4. Install TWRP 3.0.2-0 from https://dl.twrp.me/bullhead/twrp-3.0...lhead.img.html via fastboot.
5. Go in TWRP>Wipe>Advanced Wipe and repair all partitions that can be repaired (System, Data, Cache).
6. Restore Nandroid backup.
7. Success.
Hope it works for other people too, cheers
Anyone in Portland Oregon and want to take a crack at unbricking my 5x? LG gave me an RMA, but given it's not a hardware issue, I'm thinking it will be a waste of time to send it in -- I'm worried they'll just say "all your hardware is fine". Happy to buy drinks or pay a bit if someone can get me up and running.

How to unlock FRP ?

Hi
I was trying to add a custom rom and root my honor 7x.
So i installed a twrp-like recovery (with success), and with that, i sucessfully installed a new ROM.
But now my home folder (/storage/emulated/0) is not writable and seems to be encrypted :/
I cannot do a factory reset or install a new ROM:
- when i go to fastboot mode, i have:
- PHONE Unlocket
- FRP Lock
So i cannot flash anything with fastboot, and my recovery is no more accessible (don't know why...)
My question is, how can i unlock the FRP ?
Thank you very much,
boehm_e
boehm_e said:
Hi
I was trying to add a custom rom and root my honor 7x.
So i installed a twrp-like recovery (with success), and with that, i sucessfully installed a new ROM.
But now my home folder (/storage/emulated/0) is not writable and seems to be encrypted :/
I cannot do a factory reset or install a new ROM:
- when i go to fastboot mode, i have:
- PHONE Unlocket
- FRP Lock
So i cannot flash anything with fastboot, and my recovery is no more accessible (don't know why...)
My question is, how can i unlock the FRP ?
Thank you very much,
boehm_e
Click to expand...
Click to collapse
Look in developer options, the "enable OEM unlock" switch is the "frp lock"
You might already know but I will say anyway just in case.
To boot recovery while phone is rebooting unplug USB and press volume up
To boot from adb use "adb reboot recovery"
From terminal app on phone "reboot recovery"
From powered off, make sure USB in unplugged hold volume up and power
mrmazak said:
Look in developer options, the "enable OEM unlock" switch is the "frp lock"
You might already know but I will say anyway just in case.
To boot recovery while phone is rebooting unplug USB and press volume up
To boot from adb use "adb reboot recovery"
From terminal app on phone "reboot recovery"
From powered off, make sure USB in unplugged hold volume up and power
Click to expand...
Click to collapse
Thank you for your reply.
Yes i know for the oem option in developper mode, but this option is grayed out (and enabled) but the frp is still locked :/
I also know about rebooting to recovery, but this is the default Honor recovery (nothing very usefull).
I tried the dload folder method (by putting an update.app into dload folder of my sdcard and then booting with + and - and power, but the update failes at 5%. It must be because of the frp lock).
Thank you
boehm_e said:
Thank you for your reply.
Yes i know for the oem option in developper mode, but this option is grayed out (and enabled) but the frp is still locked :/
I also know about rebooting to recovery, but this is the default Honor recovery (nothing very usefull).
I tried the dload folder method (by putting an update.app into dload folder of my sdcard and then booting with + and - and power, but the update failes at 5%. It must be because of the frp lock).
Thank you
Click to expand...
Click to collapse
I keep seeing this frp lock issue, comes uP after a reset in twrp or attempted exposed install, some other system change.
Are you on stock ROM and stock recovery?
If so can try to relock bootloader, that will make OEM toggle not greyed anymore. Then can make it off and back on.
Then unlock bootloader again
But only relock if on unchanged stock
I already tried to lock the bootloader again, with no success (probably bcs of the frp lock itself)
:/
Hi
I have same issue too.
How I can relock bootloader and then unlock it?

Downgrade from Pie to Oreo without Root and unlocked Bootloader?

Hey guys,
can someone tell me if it's possible to downgrade the stock android pie version to stock oreo without rooting my device or unlock the bootloader?
I read some threads and posts but i'm not sure, because the information is disputed.
So can i flash the old stock android without getting a brick or getting stuck in edl-mode?
Thank you for your answers
Mansil234 said:
Hey guys,
can someone tell me if it's possible to downgrade the stock android pie version to stock oreo without rooting my device or unlock the bootloader?
I read some threads and posts but i'm not sure, because the information is disputed.
So can i flash the old stock android without getting a brick or getting stuck in edl-mode?
Thank you for your answers
Click to expand...
Click to collapse
Hello,
I think that it's not possible without unlocking bootloader. The unique solution is to enter in edl-mode but this is more dangerous than unlock the bootloader. Unlock bootloader is very simple and not dangerous, you are just going to loose all of your data but with a backup this is not a problem.
Root is not necessary for that, if you need help to do your downgrade with bootloader unlocking tell me !
I'm here if you have any question or if you need help !
Pierre
Flashing via EDL Mode only works with unlocked bootloader!
Unlock Bootloader will erasing all data (reset system)!
Pierre_C said:
Hello,
I think that it's not possible without unlocking bootloader. The unique solution is to enter in edl-mode but this is more dangerous than unlock the bootloader. Unlock bootloader is very simple and not dangerous, you are just going to loose all of your data but with a backup this is not a problem.
Root is not necessary for that, if you need help to do your downgrade with bootloader unlocking tell me !
I'm here if you have any question or if you need help !
Pierre
Click to expand...
Click to collapse
Can you send me the links for unlock bootloader and oreo firmware? I can't find them
ᵀᴴᴱK!D ᴼᴿᴵᴳᴵᴻᴬᴸ ツ™ said:
Can you send me the links for unlock bootloader and oreo firmware? I can't find them
Click to expand...
Click to collapse
I don't now the link but I can explain you the process.
/!\ This will erase all of your data !!
1) Enable developer options by going to Settings > About Phone, scroll down to Build number and tap 5-7 times to enable developer option.
2) Once you enabled the Developer Options. Returned back to Settings > Developer Options > USB Debugging and OEM Unlock. Just Enable there options.
At that time you have 2 option, official option and non-official version.
- Official Version,
This method require some days because you have to ask xiaomi to send you an unlock code.
You need Windows it doesn't work on Linux.
1) Go to http://en.miui.com/unlock, click on Unlock button on the webpage now you have to login and then proceed to tap on Download Mi Unlock from the resulting page.
2) Now, proceed to put your Xiaomi Mi A2 Lite into Fastboot mode by powering it on while holding Volume Down and Power buttons simultaneously. Hold until you see your phone is booted into Fastboot mode.
3) After the successful login, the validation process will start on your phone, and for the first time, you will get a message that “You don’t have the permission to Unlock the device”
4) Now click on the “Go” button or use Go to MIUI Unlock page to receive the unlocking permission.
5) Now click on the Unlock Now and log in with your Mi account details and fill all details.
6) You will get OTP for confirmation use it to complete the process.
7) Now wait until your application gets approved, you will receive the OTP password on your phone number once it’s approved.
8) Now Open the Mi Flash tool click on unlock and pass the two pop-up. Your device will be unlocked
Non-Official but simple version :
1) Proceed to put your Xiaomi Mi A2 Lite into Fastboot mode by powering it on while holding Volume Down and Power buttons simultaneously. Hold until you see your phone is booted into Fastboot
mode.
4) Download Miniamal ADB and fastboot in you are on windows, https://forum.xda-developers.com/showthread.php?t=2317790
If you are on linux use
Code:
sudo apt-get install fastboot
Code:
sudo apt-get install adb
3) On Windows in Minimal ADB and fastboot or on Linux on the terminal enter this command
Code:
fastboot oem unlock
4) Your phone will reboot, it's unlock !
PS: Sorry for my bad English
Pierre
PC295 said:
Flashing via EDL Mode only works with unlocked bootloader!
Unlock Bootloader will erasing all data (reset system)!
Click to expand...
Click to collapse
Actually you could avoid the erasing data
When you get in to fastboot mode
hold to volume down button before and write "fastboot oem unlock" code
dont release until phone shows mi logo at the startup

System Has Been Destroyed. probably with the OEM LOCKED.

Hello,
So today I wanted to install a Magisk module, after rebooting, it got me to a bootloop, I erased ALL DATA on adb mode (power botton and volume up). then started all over.
But the Bootloader was still unlocked (because before, I had root), The febuary update was impossible to install, so I thought, maybe locking the OEM may fix it, so I tried tool called " TOOL ALL IN ONE " that claims to have full support for my device.
After trying to OEM Lock, I get a friendly greeting that says " System has been destroyed " .
Trying to go back into ADB mode isn't working.
I have no idea if the OEM was locked, nor how to fix the phone.
I've heard of Mi Flash, but will it work on a Android One device? if so, PLEASE provide me with how to do so (in a noobie friendly way if possible)
If it'll help, I'm running on Pie with January update. No TWRP/Magisk. no current Root access.
UPDATE: I wanted to wait for an answer from you guys but I took a leap of faith and typed " fastboot oem unlock " and the phone was unlocked (showing unlocked on Android One boot screen). That got the system to start a boot! But I think it's bootlooping now. I tried entering ADB mode and I was succefully able to! then I selected to delete all data ( This helped me before to fix the bootloop ). then rebooted.
and right while I am typing this. I see a beautiful Hi there sign!!!
Bois, The phone is up and Running!!! but with all data now gone (ofc).
But still, The OEM is unlocked, Can you please recommend me a proper way to lock it?
Install dump ota febuary update in fastboot
Vitor00 said:
Install dump ota febuary update in fastboot
Click to expand...
Click to collapse
How do I do that? in a noobie way please.
wynix black said:
How do I do that? in a noobie way please.
Click to expand...
Click to collapse
Download adb and fastboot.>>>>https://androiddatahost.com/uq6us
Download ota dump>>>>>https://drive.google.com/file/d/1SZ3rOyaViNZyUzoZDbueqMAJ_Q5vKLA1/view
install adb and fastboot, and paste files from ota in the folder of adb and fastboot
open adb and fastboot and paste the commands one by one>>>>>>https://drive.google.com/open?id=1oxRLyX1x4gAQga5vwn1epHrjqtitDWRB
EDIT: To lock bootloader again, paste "fastboot oem lock" in adb and fastboot
Vitor00 said:
Download adb and fastboot.>>>>
Download ota dump>>>>>
install adb and fastboot, and paste files from ota in the folder of adb and fastboot
open adb and fastboot and paste the commands one by one>>>>>>
EDIT: To lock bootloader again, paste "fastboot oem lock" in adb and fastboot
Click to expand...
Click to collapse
Is the "ota dump" is on February update?
can I auto update easily after this or will I have to install the ota(s) manually in the future?
Are you sure that locking the oem after installing the ota won't give a system has been destroyed?
and finally, is it possible to enable Camera 2 API in the middle of the operation? Before locking the oem.
Many thanks!
Vitor00 said:
Install dump ota febuary update in fastboot
Click to expand...
Click to collapse
Vitor00 said:
Download adb and fastboot.>>>>https://androiddatahost.com/uq6us
install adb and fastboot, and paste files from ota in the folder of adb and fastboot
open adb and fastboot and paste the commands one by one
EDIT: To lock bootloader again, paste "fastboot oem lock" in adb and fastboot
Click to expand...
Click to collapse
I extracted the OTA_DAIZY.zip that you provided in the folder of minimal adb and fastboot, then typed the first command (the bluetooth one) in cmd while the phone is in Fastboot mode, CMD says " error canont load 'bluetooth.img' : no such file or directory"
please, how do I exactly " paste files from ota in the folder of adb and fastboot " ?
You can use MiFlash on this phone and not get your hands dirty with the method mentioned above. Grab the latest available stock ROM from here: https://en.miui.com/download-354.html
Download MiFlash(latest if possible). Turn off the phone and go to fastboot mode (vol down + power). Connect the phone to PC. Open MiFlash and select ROM location then click refresh, your device should be seen now. On the bottom you have options choose one then click start. DON'T interrupt the process when it's flashing.
marstonpear said:
You can use MiFlash on this phone and not get your hands dirty with the method mentioned above. Grab the latest available stock ROM from here:
Download MiFlash(latest if possible). Turn off the phone and go to fastboot mode (vol down + power). Connect the phone to PC. Open MiFlash and select ROM location then click refresh, your device should be seen now. On the bottom you have options choose one then click start. DON'T interrupt the process when it's flashing.
Click to expand...
Click to collapse
Thank you, I'm currently dowloading the stock ROM from the link you provided.
I have some questions about this,
1-you mentioned the options at the bottom, can you explain every one of them, is it as good as it sounds? one of the options is " save user data " of course i'd prefer to save my data IF it's possible and won't ruin the procces. does the "clean data and lock" can result in the System has been destroyed sign? because currently, even if i have a fresh clean all data on my phone, whenever i try to lock the bootloader (from my pc) it says system has been destroyed, If yes, will updates work fine via the settings thing or I will have to do this manually anyways? in other words, will having the oem locked give me any benefits? I'm not intrested in any warrenty/security thing.
2- if I had Magisk with root, and some of it's modules and maybe Camera 2 API enabled and I installed an update rom using Mi Flash, are they going to be deleted?
3-will this rom replace the original that i have on my phone? and my og one will be perma deleted? if I deleted all data after this procces, will it take me to a fresh instalation of this rom? or the one I had before?
4- will my phone remain unlocked after using Mi Flash with the first two options in the bottom (not "clean all and lock" ) ?
I really apologize for asking so many questions!
1- you can try save user data but the phone may not boot, I don't know the reason but I had bricked mine once and tried to flash the stock and save my data, somehow it didn't work. Try it for yourself and if it doesn't boot, flash the ROM again via MiFlash and select clean all and lock. Clean all and lock basically cleans the device, returns it to stock ROM and locks the bootloader, makes your device basically unused, you will have to set it up from scratch. If you use the clean all and lock or the clean all option, phone will boot normally and you can have updates without any problems. Locked bootloader means you can't do any changes to partitions of the device, which is good if you're not planning on rooting etc. You can have updates with either locked or unlocked BL unless of course you haven't tampered with the partitions of the device. I like locked BL because when you unlock the BL it shows another screen when booting, which I personally don't like.
2-MiFlash returns everything to stock, you will definitely lose magisk and root and the modules you installed on Magisk because using MiFlash flashes the original boot.img which makes Magisk useless. You can however get temporary root access and enable cam2API via ADB then lock the bootloader but you need to be careful with the process because you may lose your data (Locking/Unlocking BL erases all data but there's a way to bypass that)
3-As of now, the link I provided has the 10.0.3.0 (january update), if you've downloaded it your phone will install stock(from xiaomi) Pie ROM with January security patches. I forgot to write this update has issues with SIM (reverses SIM1 to SIM2) so I suggest grabbing V10.0.2.0.PDLMIFJ (Fastboot image) from here: https://forum.xda-developers.com/mi-a2-lite/how-to/ota-v9-6-4-0-odlmiff-t3823913 then flashing it via MiFlash then updating to newer versions through settings.
4- if you choose "save user data" or "clean all" your phone will stay unlocked, if you choose "clean all and lock" you will have a locked bootloader. :good:
marstonpear said:
1- you can try save user data but the phone may not boot, I don't know the reason but I had bricked mine once and tried to flash the stock and save my data, somehow it didn't work. Try it for yourself and if it doesn't boot, flash the ROM again via MiFlash and select clean all and lock. Clean all and lock basically cleans the device, returns it to stock ROM and locks the bootloader, makes your device basically unused, you will have to set it up from scratch. If you use the clean all and lock or the clean all option, phone will boot normally and you can have updates without any problems. Locked bootloader means you can't do any changes to partitions of the device, which is good if you're not planning on rooting etc. You can have updates with either locked or unlocked BL unless of course you haven't tampered with the partitions of the device. I like locked BL because when you unlock the BL it shows another screen when booting, which I personally don't like.
2-MiFlash returns everything to stock, you will definitely lose magisk and root and the modules you installed on Magisk because using MiFlash flashes the original boot.img which makes Magisk useless. You can however get temporary root access and enable cam2API via ADB then lock the bootloader but you need to be careful with the process because you may lose your data (Locking/Unlocking BL erases all data but there's a way to bypass that)
3-As of now, the link I provided has the 10.0.3.0 (january update), if you've downloaded it your phone will install stock(from xiaomi) Pie ROM with January security patches. I forgot to write this update has issues with SIM (reverses SIM1 to SIM2) so I suggest grabbing V10.0.2.0.PDLMIFJ (Fastboot image) from here: https://forum.xda-developers.com/mi-a2-lite/how-to/ota-v9-6-4-0-odlmiff-t3823913 then flashing it via MiFlash then updating to newer versions through settings.
4- if you choose "save user data" or "clean all" your phone will stay unlocked, if you choose "clean all and lock" you will have a locked bootloader. :good:
Click to expand...
Click to collapse
Thank you so much for the helpful answers!
So I flashed my phone with the first link you provided ( January update ) using Mi Flash and the option to save user data, It worked perfectly fine. not just that, but I was Finally able to get the February update using the option in the settings, I'm not aware of the SIM problem you mentioned, but i'm not experiencing any major bugs right now.
I want to get camera 2 API but I'll wait till March update to bring it ( if it exists, and launched within the first 10 days ). If the March update didn't carry with Camera 2 API enabled, I'll have to do it myself.
One last question please, How to enable the cam 2 API without magisk or touching something that may stop the built-in updater from installing? how to make it (and maybe Magisk too) survive flashing an OTA?. Will the option "save user data" protect them from getting Snapped™ ?
wynix black said:
Thank you so much for the helpful answers!
So I flashed my phone with the first link you provided ( January update ) using Mi Flash and the option to save user data, It worked perfectly fine. not just that, but I was Finally able to get the February update using the option in the settings, I'm not aware of the SIM problem you mentioned, but i'm not experiencing any major bugs right now.
I want to get camera 2 API but I'll wait till March update to bring it ( if it exists, and launched within the first 10 days ). If the March update didn't carry with Camera 2 API enabled, I'll have to do it myself.
One last question please, How to enable the cam 2 API without magisk or touching something that may stop the built-in updater from installing? how to make it (and maybe Magisk too) survive flashing an OTA?. Will the option "save user data" protect them from getting Snapped™ ?
Click to expand...
Click to collapse
I don't think Xiaomi will ever let this phone have Cam2API. They even broke GCam functionality on Pie update (on Oreo Gcam worked fine but now every Gcam has focus issues). Follow this topic to have Magisk and keep it after updates: https://forum.xda-developers.com/mi-a2-lite/how-to/guide-install-magisk-proper-support-ota-t3836952 Follow this topic to have Cam2API enabled if you don't want root/Magisk: https://forum.xda-developers.com/mi-a2-lite/how-to/guide-how-to-enable-camera2-api-t3851414 :good:

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.
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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.
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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?

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