oneplus 8t unroot + get back to stock - OnePlus 8T Questions & Answers

Hi,
I am currently on A11 with Oneplus 8T and unlocked bootloader + rooted stock rom.
What is the proper process to lock the bootloader and to get back the stock rom? What are the options?
Can I just factory reset the device?
Thanks,

2019registered said:
Hi,
I am currently on A11 with Oneplus 8T and unlocked bootloader + rooted stock rom.
What is the proper process to unlock the bootloader and to get back the stock rom? What are the options?
Can I just factory reset the device?
Thanks,
Click to expand...
Click to collapse
You're confusing us
You're already unlock+root
Then again ask for unlock BL!
If you want just stock then flash boot from stock that's it nothing else to do

@Mr Hassan sorry, I have just edited the first post. I want to LOCK the bootloader and get fully back to an unrooted stock rom.

2019registered said:
@Mr Hassan sorry, I have just edited the first post. I want to LOCK the bootloader and get fully back to an unrooted stock rom.
Click to expand...
Click to collapse
That's simple just flash stock rom or boot and relock it

2019registered said:
@Mr Hassan sorry, I have just edited the first post. I want to LOCK the bootloader and get fully back to an unrooted stock rom.
Click to expand...
Click to collapse
Install the latest rom for your phone from the OnePlus support site using local install. That will overwrite the Magisk patched boot you currently have installed.
After the phone reboots (you'll see that Magisk shows it's not installed) then boot into bootloader and use fastboot oem lock
Then select NO (yes, this is a bug in the OOS bootloader) and that should wipe your phone and bring it up with the bootloader locked.

if you want the easiest fastest way, just use the msm tool for the correct model.
ps. if you dont care about losing your data

Related

How to install Oreo ROM?

Hi! I'm really humbly sorry, I'm new to this stuff, so I have to ask you...
I have a Galaxy S8+ Duos (SM-GD955FD). I bricked it once or twice trying to root it. So I had to flash a sammobile.com ROM...
Now this is done, I have a successfully rooted phone with with the Baseband version G955FXU1AQH3 and the irritating "security notice" (since I was not able to install Magisk, and the NotifyClean app doesn't work either).
I would like to flash the latest Oreo and root it. I also heard good things about the Oreo ROM by alexega.
So: I'm on AQH3 rooted. What can I do?
Thank you for your patience.
If wou want to install stock ROM you must follow this instructions: https://forum.xda-developers.com/galaxy-s8+/how-to/guide-how-to-flash-crap-using-odin-t3748555. Bear in mind that if you install stock due to security issues you can't unlock OEM for 7 days after flashing (you must not reboot your phone for 170 hours).
If wou want to flash a custom rom you must have TWRP installed, move the zip rom to your SD card and just flash it from recovery. Make sure to format data before flashing.
josegon30 said:
If wou want to install stock ROM you must follow this instructions: https://forum.xda-developers.com/galaxy-s8+/how-to/guide-how-to-flash-crap-using-odin-t3748555. Bear in mind that if you install stock due to security issues you can't unlock OEM for 7 days after flashing (you must not reboot your phone for 170 hours).
If wou want to flash a custom rom you must have TWRP installed, move the zip rom to your SD card and just flash it from recovery. Make sure to format data before flashing.
Click to expand...
Click to collapse
Nice, thank you. So I have just flashed the thing with the sammobile.com ROM again (so, no root) and updated to the oroginal firmware Oreo following your link (I worked parallel).
I was just about to root Oreo and was googling for a way... But did I get you right? I should not reboot my phone for 170 hours now?!? So, no rooting until next week?!
Edit: I have developer options enabled and the "OEM unlock" switch is on (it says: "Bootloader is already unlocked.""). So... confusion...
andifla852 said:
Nice, thank you. So I have just flashed the thing with the sammobile.com ROM again (so, no root) and updated to the oroginal firmware Oreo following your link (I worked parallel).
I was just about to root Oreo and was googling for a way... But did I get you right? I should not reboot my phone for 170 hours now?!? So, no rooting until next week?!
Edit: I have developer options enabled and the "OEM unlock" switch is on (it says: "Bootloader is already unlocked.""). So... confusion...
Click to expand...
Click to collapse
Excuse me, are you currently on Nougat 7.0? If so, you obviously have OEM unlock option available. The problem is in the new 8.0 stock rom, wich sets RMM state to pre-normal preventing you to flash TWRP and to get root in OREO. To skip that you can directly flash a custom rom with 8.0.- Otherwise (stock rom) you must wait 7 days with no phone reboot to get ridd of that pre-normal issue and then flash TWRP and flash Magisk.
Just rooted the new Oreo ROM with TWRP. Works just fine, thank you.
So, what are the advantages of the Oreo ROM by alexega compared to XXU1CRAP?
josegon30 said:
Excuse me, are you currently on Nougat 7.0? If so, you obviously have OEM unlock option available. The problem is in the new 8.0 stock rom, wich sets RMM state to pre-normal preventing you to flash TWRP and to get root in OREO. To skip that you can directly flash a custom rom with 8.0.- Otherwise (stock rom) you must wait 7 days with no phone reboot to get ridd of that pre-normal issue and then flash TWRP and flash Magisk.
Click to expand...
Click to collapse
Hi Jose. I am with stock nogat. Not root. Any advice for flash stock oreo firmware?
Allrey know about odin. Im talking about unlock options, etc.
Thks
Juan from Argentina.
juange said:
Hi Jose. I am with stock nogat. Not root. Any advice for flash stock oreo firmware?
Allrey know about odin. Im talking about unlock options, etc.
Thks
Juan from Argentina.
Click to expand...
Click to collapse
Just follow the steps from the link in my previous repply. As it's an original software, it won't trip knox or void your warantee.
hi, does anybody knows how to install the oreo firmware using odin but without changing the csc I already have?
josegon30 said:
Excuse me, are you currently on Nougat 7.0? If so, you obviously have OEM unlock option available. The problem is in the new 8.0 stock rom, wich sets RMM state to pre-normal preventing you to flash TWRP and to get root in OREO. To skip that you can directly flash a custom rom with 8.0.- Otherwise (stock rom) you must wait 7 days with no phone reboot to get ridd of that pre-normal issue and then flash TWRP and flash Magisk.
Click to expand...
Click to collapse
Do you need a custom rom to not have the RMM lock anymore? A stock with BlackMesa's RMM START .zip is not right?
costafabiof said:
Do you need a custom rom to not have the RMM lock anymore? A stock with BlackMesa's RMM START .zip is not right?
Click to expand...
Click to collapse
There's no need to have a custom rom, if you flash the fix in stock RMM lock gets killed everytime.
josegon30 said:
There's no need to have a custom rom, if you flash the fix in stock RMM lock gets killed everytime.
Click to expand...
Click to collapse
Did not work.
I can not find out where I went wrong.
developer11 said:
Android.com.pl **** you
Little cocksucker
Click to expand...
Click to collapse
Translation?
costafabiof said:
Did not work.
I can not find out where I went wrong.
Click to expand...
Click to collapse
First you have to install OREO and wait 7 days without reseting your phone. After 170 hours, you get OEM unlock in developer options and you will be able to flasf TWRP. After flashing TWRP you flash RMM-State_Bypass_Mesa and that´s all.
josegon30 said:
First you have to install OREO and wait 7 days without reseting your phone. After 170 hours, you get OEM unlock in developer options and you will be able to flasf TWRP. After flashing TWRP you flash RMM-State_Bypass_Mesa and that´s all.
Click to expand...
Click to collapse
That did not work out. But thank you for your attention.

help

Without unrooting my OnePlus 7 if i directly go to fastboot mode and use command fastboot OEM lock what will happen ( my phone is rooted with magisk without twrp)? I want to lock my OnePlus 7 bootloader as i want to sell my phone
Thanks in advance
mannulko said:
Without unrooting my OnePlus 7 if i directly go to fastboot mode and use command fastboot OEM lock what will happen ( my phone is rooted with magisk without twrp)? I want to lock my OnePlus 7 bootloader as i want to sell my phone
Thanks in advance
Click to expand...
Click to collapse
Please don't do this. Please clean install stock rom like stable OxygenOS and perform a factory reset from that rom. Now you can lock your bootloader.
strongst said:
Please don't do this. Please clean install stock rom like stable OxygenOS and perform a factory reset from that rom. Now you can lock your bootloader.
Click to expand...
Click to collapse
Ok thanks
mannulko said:
Ok thanks
Click to expand...
Click to collapse
If you need further help, just ask
Clean install means i should download stock oos rom and flash it through local upgrade method?
mannulko said:
Clean install means i should download stock oos rom and flash it through local upgrade method?
Click to expand...
Click to collapse
Exactly. Or if you are already on latest stock oos, you can do a factory reset,then boot, enable USB debugging and issue the fastboot command to lock the device(which wipes it additionally).

Not able to lock my bootloader again in my Redmi Note 7 Pro

I sucessfully installed Orange Fox Recovery in my Redmi Note 7 Pro (violet). But then after that I wanted to go back to the stock rom so I flashed it with Mi Flash. The Rom which I flashed was Global Stable Fastboot Rom (Version 11.0.8.0) but after flashing an error appeared that the system has been destroyed. Then I tried to unlock my bootloader, that took place successfully and my phone booted but the bootloader was still unlocked, I want to lock my bootloader. But whenever I do this the System Gets Destroyed.
You probably have the Chinese version and are flashing the Indian rom. Try to flash the Chinese rom and lock the bootloader and see if it works.
Harsh Ahuja 2509 said:
I sucessfully installed Orange Fox Recovery in my Redmi Note 7 Pro (violet). But then after that I wanted to go back to the stock rom so I flashed it with Mi Flash. The Rom which I flashed was Global Stable Fastboot Rom (Version 11.0.8.0) but after flashing an error appeared that the system has been destroyed. Then I tried to unlock my bootloader, that took place successfully and my phone booted but the bootloader was still unlocked, I want to lock my bootloader. But whenever I do this the System Gets Destroyed.
Click to expand...
Click to collapse
U cant relock ur bootloader bruh ri8 now.
sourav24071999 said:
U cant relock ur bootloader bruh ri8 now.
Click to expand...
Click to collapse
When it can be relock again?
sourav24071999 said:
U cant relock ur bootloader bruh ri8 now.
Click to expand...
Click to collapse
Then when can I relock my bootloader again? Because I want to lock my bootloader
dark3578 said:
You probably have the Chinese version and are flashing the Indian rom. Try to flash the Chinese rom and lock the bootloader and see if it works.
Click to expand...
Click to collapse
No, I never had the China Version it is the Indian Version. Can u send me the link of the Chinese Rom
Harsh Ahuja 2509 said:
Then when can I relock my bootloader again? Because I want to lock my bootloader
Click to expand...
Click to collapse
Let's see.. no info yet
I am also having the same issue. I have tried multiple methods. I flashed Chinese rom, and then tried relocking the bootloader. It did not work.
I also tried flashing MIUI 10, and after flashing the fastboot rom of MIUI, I tried relocking bootloader. It did not work as well.
I want to relock my bootloader.
After unlocking bootloader I am facing just one issue, that is, my internet goes off (volte signal + internet) while receiving an incoming call. While it does not goes off and internet works fine when making outgoing calls. Are you also facing this issue? I am using Airtel.
Also, can someone please help us out?
I have did same it will work for me with unlocked bootloader and got a little issue with accessibility player in youtube
Not a big deal ?

Would it be possible to re-lock the bootloader if I changed the rom and recovery

I've been thinking of unlocking the bootloader and changing the rom to Pixel experience. If I eventually decide to revert back to OOS would it be possible to also re-lock the bootloader?
Yes. You can do that via cmd or use the restore tool here: https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4148415/
Be warned, do not try to relock bootloader untill you are full stock because you might brick the phone and be forced to use the tool i linked above ( i did it once )
a-regular-pear said:
I've been thinking of unlocking the bootloader and changing the rom to Pixel experience. If I eventually decide to revert back to OOS would it be possible to also re-lock the bootloader?
Click to expand...
Click to collapse
I re locked the bootloader when I was on Pixel Experience Rom A11 using avb_custom key .img file. It was optional but I still did it successfully. However, I have not tried to lock bootloader on custom ROM since the 12 ROMs came as it is not mentioned anywhere so it might brick the device. If you want to re lock the BL then you'll have to go back to stock OOS. Try using the unbrick or MSM tool for OP Nord (Specific model/region).

Will I get a brick if I lock bootloader with an old stock ROM?

I want to relock bootloader, but will I get brick if I lock bootloader with old stock ROM installed on device?
Look inside here:
Lock BootLoader after Rooting?
Thanks for taking time to read my query. I was wondering if I've to lock boot-loader after rooting ( I just rooted my Oero) and before looking can I take everything backup on titanium backup and then restore everything after locking ? I'm I...
forum.xda-developers.com
jwoegerbauer said:
Look inside here:
Lock BootLoader after Rooting?
Thanks for taking time to read my query. I was wondering if I've to lock boot-loader after rooting ( I just rooted my Oero) and before looking can I take everything backup on titanium backup and then restore everything after locking ? I'm I...
forum.xda-developers.com
Click to expand...
Click to collapse
I know that if I install modified ROM and lock bootloader I will get a brick. But will I get a brick if i install official (stock) ROM but old version and then lock bootloader? For example, I installed stock ROM (not modified) with Android 10, but the latest is Android 11 then I locked bootloader. Will I get a brick?
jwoegerbauer said:
Look inside here:
Lock BootLoader after Rooting?
Thanks for taking time to read my query. I was wondering if I've to lock boot-loader after rooting ( I just rooted my Oero) and before looking can I take everything backup on titanium backup and then restore everything after locking ? I'm I...
forum.xda-developers.com
Click to expand...
Click to collapse
The question is, can I lock the bootloader with the old version of the official firmware installed without getting a brick. Because the old version of the firmware works smoother.
Locking a bootloader doesn't affect ROM actually installed: Lock or Unlock will wipe your data, that's all.
jwoegerbauer said:
Locking a bootloader doesn't affect ROM actually installed: Lock or Unlock will wipe your data, that's all.
Click to expand...
Click to collapse
So can I install old version of fw? I heard something about rollback protection.
Oybek78 said:
So can I install old version of fw? I heard something about rollback protection.
Click to expand...
Click to collapse
You still, or I didn´t find, that you mention the model of your device, that´s matter to have the right answer.
Also, it depends on which method you used to flash the ROM, if you officially, flashed the ROM, and the rollback didn´t affect your device, then it won´t do, locking or unlocking it.
Oybek78 said:
So can I install old version of fw? I heard something about rollback protection.
Click to expand...
Click to collapse
The stock ROM can be installed on the phone at any time. Mostly via ADB / Fastboot tools.
SubwayChamp said:
You still, or I didn´t find, that you mention the model of your device, that´s matter to have the right answer.
Also, it depends on which method you used to flash the ROM, if you officially, flashed the ROM, and the rollback didn´t affect your device, then it won´t do, locking or unlocking it.
Click to expand...
Click to collapse
My phone is Sony Xperia 1 J9110. I flashed it officially to the latest ROM through settings. Then I unlocked the bootloader and flashed the old stock ROM via newflasher. Then I decided to relock the bootloader with old stock ROM installed. Does this mean that I will get my phone bricked if I lock the bootloader with old stock ROM actually installed?
jwoegerbauer said:
The stock ROM can be installed on the phone at any time. Mostly via ADB / Fastboot tools.
Click to expand...
Click to collapse
But can I lock the bootloader with old stock ROM installed?
I saw somewhere that if you lock the bootloader with the old firmware version, you may get brick. But I'm not sure about that.
Why steadily repeat your posts?
FYI: I hereby opt out of this thread.
jwoegerbauer said:
Why steadily repeat your posts?
FYI: I hereby opt out of this thread.
Click to expand...
Click to collapse
Because you answered me
Oybek78 said:
My phone is Sony Xperia 1 J9110. I flashed it officially to the latest ROM through settings. Then I unlocked the bootloader and flashed the old stock ROM via newflasher. Then I decided to relock the bootloader with old stock ROM installed. Does this mean that I will get my phone bricked if I lock the bootloader with old stock ROM actually installed?
Click to expand...
Click to collapse
Yes, always that you flash a stock ROM, you can re-lock it, fastboot will erase the data as a security measurement.

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