Relock Bootloader + Unroot and Factory Reset OxygenOS 11.0.5.1 - OnePlus 7T Questions & Answers

Hello Everyone,
Before you guys get mad at me, I know there are a lot of threads on how to relock the bootloader, unroot the phone, and factory reset. But I got confused with most of it since there is a lot of different information out there, and most of them are for OOS 10.
So here's my case:
- I have stock OOS 11.0.5.1 rooted with Magisk and bootloader unlocked; HD1907 device.
- I basically want to remove the root, lock the bootloader, and wipe/format my phone clean (just like a brand new phone would be).
- How do I do it without getting my phone bricked??
Someone, please point me in the correct direction on what to do. Any help will be appreciated.
Thanks a lot!

Msmtool to oos10 and then ota to oos11.0.5
[OP7T][OOS 11.0.5.1 HD65AA/BA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com

HueyT said:
Msmtool to oos10 and then ota to oos11.0.5
[OP7T][OOS 11.0.5.1 HD65AA/BA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
Click to expand...
Click to collapse
Hey there, I have the same issue. This was not working for me as MSM just would not send anything to the phone. Also, after trying other methods I am stuck in fastboot so cannot open EDL. What do I do?

Qualcomm USB 9008 drivers. Phone must be off. Hold buttons as video showed:

If don't want to use msmtool:
"fastboot reboot fastboot" to get into fastbootD and then reflash all partitions

Related

Return to stock firmware completely + relock bootloader

I have a Ginkgo model which I am using with LineageOS 17.1 / TWRP. It is pretty cool.
However I want to return completely to the Global (EU) version of the software, including stock recovery, ROM, relocked bootloader, anything, because I am willing to sell the phone.
Next user will be average user, unlike me, so he/she won't appreciate any modifications.
Tried to search for suggestions but no luck.
Before installing LoS, I installed Xiaomi.EU 12.5 stable from here: https://xiaomi.eu/community/threads/miui-12-0-12-1-12-2-12-5-stable-release.56191/
Could have some relevance like firmware partition, etc. AFAIK it is Chinese ROM based, will that make any problems when I re-flash EU version?
Found this one: https://forum.xda-developers.com/t/how-to-completely-revert-back-to-stock.4088665/
But before trying and possibly bricking the phone, I'd like to hear some encourage from you guys. Phone was EU version originally.
Many thanks.
HUN_Gyuszi said:
I have a Ginkgo model which I am using with LineageOS 17.1 / TWRP. It is pretty cool.
However I want to return completely to the Global (EU) version of the software, including stock recovery, ROM, relocked bootloader, anything, because I am willing to sell the phone.
Next user will be average user, unlike me, so he/she won't appreciate any modifications.
Tried to search for suggestions but no luck.
Before installing LoS, I installed Xiaomi.EU 12.5 stable from here: https://xiaomi.eu/community/threads/miui-12-0-12-1-12-2-12-5-stable-release.56191/
Could have some relevance like firmware partition, etc. AFAIK it is Chinese ROM based, will that make any problems when I re-flash EU version?
Found this one: https://forum.xda-developers.com/t/how-to-completely-revert-back-to-stock.4088665/
But before trying and possibly bricking the phone, I'd like to hear some encourage from you guys. Phone was EU version originally.
Many thanks.
Click to expand...
Click to collapse
Follow this guide
and don't relock the bootloader
loopypalm said:
Follow this guide
and don't relock the bootloader
Click to expand...
Click to collapse
Thank you so much. It means I must not relock the bootloader? This is pretty sad because then I cannot guarantee 100% factory software. Buyer for my phone will complain. No chance to reach factory software 100%?
HUN_Gyuszi said:
Thank you so much. It means I must not relock the bootloader? This is pretty sad because then I cannot guarantee 100% factory software. Buyer for my phone will complain. No chance to reach factory software 100%?
Click to expand...
Click to collapse
it will brick the phone and your only way to fix it is EDL
I am happy to update the thread with good results.
Please note that the following are my personal experience described, I cannot guarantee anything and you might get a bricked phone. Please dont blame me if anything goes wrong!
Originally my phone was Global/EEA, and I had Xiaomi.EU and LineageOS 17.1 also this year. After this, I successfully reverted to complete factory software, including relocking the bootloader. This is necessary if you want to sell your phone to other people because they dont need custom ROMs and will complain.
First, go to this link: https://c.mi.com/oc/miuidownload/detail?guide=2
(make sure to follow the 'Fastboot Update' guide on this link!)
On Step 1, click on the link to download the Flash tool.
On Step 2, select your proper device (mine was 'Xiaomi Redmi Note 8 Latest EEA Stable Version Fastboot File Download'). I think region (like Chinese, Global/EEA) is hardcoded to the phone, so you cannot flash Global ROM to a Chinese phone, but please fix me. Pay attention what you select here.
Once both files are downloaded, extract them (you can use 7-zip).
Put your phone to fastboot mode.
Connect your phone with USB cable to your Windows machine. Start the flash tool, make sure to run it as admin. AFAIK it will present a dialog to install the necessary drivers which is needed to communicate with the phone in fastboot mode, just click OK for that.
Check if your phone is present in the list. On the left bottom side, click on 'clean all and lock'. Select the extracted directory of the fastboot ROM you downloaded. Press the flash button.
Wait for a few minutes. Your phone will boot up with original MIUI ROM.
You might also check logs. You need to have a ton of fastboot commands and a successful locking at the end.
Important notes: flash chinese ROM for chinese phone, global or eea for european/global phones. You can only relock your bootloader using the proper region.
Good luck anyone reading this!

Question my oneplus 9 pro says device is corrupt will not boot

so ive tried using the msmtool no luck i pretty decent at using phones not the greatest lol if anyone can help please and thank you.
also have Le2125
Ramey28 said:
also have Le2125
Click to expand...
Click to collapse
i can help
@Fizzyapps
okay what do i need to do
TMO 9PRO LAST OPTION HARDBRICKED FIX & BACK TO TMO STOCK FIX
Frist off I'm not Responsible for anything that happens to your phone!!! DO NOT FLASH UNLESS YOU TRIED EVERYTHING ELSE FIRST INDIA MSM TOOL TO FIX YOUR HARD BRICKED T-MOBILE 9PR0!!!! DO THIS AT YOUR OWEN RISK!!! DISCLAIMER: THIS WILL...
forum.xda-developers.com
UPDATED T-MOBILE MSM TOOL OOS11.2.6.6
Frist off I'm not responsible for anything that happens to your phone!!! VERY SIMPLE IF YOU ARE BRICKED, BOOTLOOPING OR JUST WANT TO GO BACK TO 100% STOCK. THIS WILL WIPE ALL DATA!!! AN RELOCK BOOTLOADER T-MOBILE OOS 11.2.6.6 MUST HAVE...
forum.xda-developers.com
the second try first
i dont have a t-mobile version its unlocked and i use att
seen the wrong model lol
OP9Pro - Repository of MSM Unbrick Tools (TMO, EU, GLO, IN)
By using these tools, you accept full responsibility for your actions. Your warranty is void should you run any of these utilities without OnePlus support present. I am not responsible for bricks, fires, nuclear war, etc. If you modified any...
forum.xda-developers.com
FizzyAps said:
seen the wrong model lol seleect the NA
OP9Pro - Repository of MSM Unbrick Tools (TMO, EU, GLO, IN)
By using these tools, you accept full responsibility for your actions. Your warranty is void should you run any of these utilities without OnePlus support present. I am not responsible for bricks, fires, nuclear war, etc. If you modified any...
forum.xda-developers.com
Click to expand...
Click to collapse
already tried this to be honest i aint had any luck with at all
Ramey28 said:
already tried this to be honest i aint had any luck with at all
Click to expand...
Click to collapse
that did it say
lik the error
i mean i cant get the msm tool to work to be honest or get it to boot to edl
Ramey28 said:
i mean i cant get the msm tool to work to be honest or get it to boot to edl
Click to expand...
Click to collapse
yes fix man
make sure your drive are insalles
open msm tool an click start
with phone on cash dump screen plug it in
hold power and both volume button tell you here the computer chim let go of the power button keep holdint volume button and it boot edl
never even got the cash dump screen either
tery it that way itll work
how to make that happen exactly im sorry not really understanding you exactly i seen your english isnt the greatest
open msm tool
with phone plugged in
hold power +volume up and volume down at the same time
tell the computer chims
let got of power
keep holding volume up and down
youll here it connect and msm will say connectd
if you see that hit start
Thanks i got it
Awesome

can you help me to downgrade?

Hi, I'd like to rollback to oos 10 from oos 11. Can you help me to downgrade?
I don't know if I should follow some yt videos or using the unbrick app here.
And most of all what is the latest oos10 version for EU OP7T
Thank you so much
Msmtool
[OP7T][OOS 11.0.5.1 HD65AA/BA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
HueyT said:
[OP7T][OOS 11.0.5.1 HD65AA/BA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
Click to expand...
Click to collapse
is it normal that now I have Widevine L3?
BL unlocked?
HueyT said:
BL unlocked?
Click to expand...
Click to collapse
Nope
RealPsygnosis said:
Nope
Click to expand...
Click to collapse
Hi
I downgraded few days ago from OOS11 to OOS10 but I have Bootloader Open but I think that doesn't matter. (If I am wrong correct me) Always possible to open it and then downgrade
Which system exactly you have? Version.

Question flash A11 on "bricked" phone

im sorry for the inexpertise, this is literally the first phone i ever had and im not familiar with this at all.
i tried to install LineageOS, i accidentally updated to a12 and the build only supportis a11. my phone is bootlooped and locked. it will exclusively start on bootloader and all boots will go there no matter what. the official OS is wiped.
so all methods require manually putting the files inside the phone and this is not possible on bootloader because pc wont recognize the phone as a device, so you cant transfer files.
in this cases, how do you install A11 on the phone? what can i do to recover access to the phone? THERE IS NO OS RIGHT NOW
glowyemmanuel said:
im sorry for the inexpertise, this is literally the first phone i ever had and im not familiar with this at all.
i tried to install LineageOS, i accidentally updated to a12 and the build only supportis a11. my phone is bootlooped and locked. it will exclusively start on bootloader and all boots will go there no matter what. the official OS is wiped.
so all methods require manually putting the files inside the phone and this is not possible on bootloader because pc wont recognize the phone as a device, so you cant transfer files.
in this cases, how do you install A11 on the phone? what can i do to recover access to the phone? THERE IS NO OS RIGHT NOW
Click to expand...
Click to collapse
Seaech for MSMDownloader, you'll find it here on this thread it will reinstall everything from scratch
As what @Chinaroad said, the MSM tool is the way to go.
OP9Pro - Repository of MSM Unbrick Tools (TMO, EU, GLO, IN)
By using these tools, you accept full responsibility for your actions. Your warranty is void should you run any of these utilities without OnePlus support present. I am not responsible for bricks, fires, nuclear war, etc. If you modified any...
forum.xda-developers.com
Chinaroad said:
Seaech for MSMDownloader, you'll find it here on this thread it will reinstall everything from scratch
Click to expand...
Click to collapse
hallo dare said:
As what @Chinaroad said, the MSM tool is the way to go.
OP9Pro - Repository of MSM Unbrick Tools (TMO, EU, GLO, IN)
By using these tools, you accept full responsibility for your actions. Your warranty is void should you run any of these utilities without OnePlus support present. I am not responsible for bricks, fires, nuclear war, etc. If you modified any...
forum.xda-developers.com
Click to expand...
Click to collapse
thank you both. one thing that worries me is the red warning, no partition was ever touched by MSM because i never used it. so under the circumstances i posted, is a hard brick possible? i want to be totally sure before proceeding
glowyemmanuel said:
thank you both. one thing that worries me is the red warning, no partition was ever touched by MSM because i never used it. so under the circumstances i posted, is a hard brick possible? i want to be totally sure before proceeding
Click to expand...
Click to collapse
Maybe, but MSM will flash all the partitions, you'll loose your data obviusly, but you'll get your phone alive again it will be like you just bought it

Question How to flash stock rom from custom rom

Hi there,
Bought this beast of phone like 8 months ago easily but after installing several roms and suffering so many bugs (with cr-droid the camera never worked at 4k 60fps i.e.) and app crashes, now I need something stable 100% so want to go back to stock rom.
However couldn't be able to find any tutorial about that, so I'm a bit confused with this problem. Which are the steps to do that?
Thanks in advance
spamerobaldomero said:
Hi there,
Bought this beast of phone like 8 months ago easily but after installing several roms and suffering so many bugs (with cr-droid the camera never worked at 4k 60fps i.e.) and app crashes, now I need something stable 100% so want to go back to stock rom.
However couldn't be able to find any tutorial about that, so I'm a bit confused with this problem. Which are the steps to do that?
Thanks in advance
Click to expand...
Click to collapse
MSM to a stock rom....here
OP9Pro - Repository of MSM Unbrick Tools (TMO, EU, GLO, IN)
By using these tools, you accept full responsibility for your actions. Your warranty is void should you run any of these utilities without OnePlus support present. I am not responsible for bricks, fires, nuclear war, etc. If you modified any...
forum.xda-developers.com
TheGhost1951 said:
MSM to a stock rom....here
OP9Pro - Repository of MSM Unbrick Tools (TMO, EU, GLO, IN)
By using these tools, you accept full responsibility for your actions. Your warranty is void should you run any of these utilities without OnePlus support present. I am not responsible for bricks, fires, nuclear war, etc. If you modified any...
forum.xda-developers.com
Click to expand...
Click to collapse
great master!
Another possibility is this
[Fastboot ROM] [OOS] OnePlus 9 Pro Stock Fastboot ROM [EU/CN]
*** Disclaimer *** I am not responsible if you mess up your phone! You have been warned! !! Carrier locked devices are currently unsupported !! Hey everyone, Here are some fastboot ROMs for the OnePlus 9 Pro. Only a couple of versions and...
forum.xda-developers.com
The MSM Thing is not working for because of USB driver and EDL mode
spamerobaldomero said:
Hi there,
Bought this beast of phone like 8 months ago easily but after installing several roms and suffering so many bugs (with cr-droid the camera never worked at 4k 60fps i.e.) and app crashes, now I need something stable 100% so want to go back to stock rom.
However couldn't be able to find any tutorial about that, so I'm a bit confused with this problem. Which are the steps to do that?
Thanks in advance
Click to expand...
Click to collapse
there are also fastboot rom, unofficial but you jump directly to latest builds
Psk.It said:
there are also fastboot rom, unofficial but you jump directly to latest builds
Click to expand...
Click to collapse
Iam a little hesitant to use , when I go into read the bat file it states
ECHO # Oxygen OS Flasher For OnePlus 9RT by abhinavgupta371 and HELLBOY017 #
ECHO # updated by Va1d3m and penguinus
I just want to be sure it has been configured for the op9p
I would just use the MSM tool to go back to stock rom. With phone in USB debug in CMD type adb reboot edl when you have your phone plugged in and the MSM tool open. Once MSM tool recognizes the device just press start. After going back to stock rom update to latest firmware
JimmyL216 said:
I would just use the MSM tool to go back to stock rom. With phone in USB debug in CMD type adb reboot edl when you have your phone plugged in and the MSM tool open. Once MSM tool recognizes the device just press start. After going back to stock rom update to latest firmware
Click to expand...
Click to collapse
I realize, but it would be nice to quick toggle between diff versions and returning to stock without using MSM, so that's why I am questioning what the android file host says it is versus what the fastboot rom says it is in the .bat file,,,, edit,, answered my own question went from 13.1 back to c_65 and everything looks good, and its asking me to upgrade to f.17 if I want,,,, edit,,,, and just doulble checking that msm still works after using fastboot rom and it does
hammered58 said:
Iam a little hesitant to use , when I go into read the bat file it states
ECHO # Oxygen OS Flasher For OnePlus 9RT by abhinavgupta371 and HELLBOY017 #
ECHO # updated by Va1d3m and penguinus
I just want to be sure it has been configured for the op9p
Click to expand...
Click to collapse
I used those several times without problem
In any case, at the end, you should go via MSN
Psk.It said:
I used those several times without problem
In any case, at the end, you should go via MSN
Click to expand...
Click to collapse
It went well with the fastboot roms going from 13.1 to c_65 ,then I msm to 11.10 and tried to go back to 13.1 via fastboot rom and it didn't like that,, it soft bricked to bootloader loop so I had to msm again via magisk,,

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