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[OP8][OOS 21AA/BA/DA] Unbrick tool to restore your device to OxygenOS

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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 modified before it was cool.

Hi everyone, similar to the previous threads for
OP3, OP3T, OP5, OP5T, OP6, OP6T, OP7, OP7PRO, regular OP7T, T-Mobile OP7T, regular OP7TPRO, T-Mobile OP7TPro 5G and OP8Pro here are the EDL packages (also known as MSM tools or unbrick tools) that can revive a bricked OnePlus 8.

You should also be able to rollback your phone to a previous release of OOS with them if for some reason you want to go back to an older firmware

You can download the following versions:

IN21BA tools (european firmware):
ANDROID 10:


Mirror: https://anonymouswp.stackstorage.com...&node-id=73231

IN21AA tools (international firmware):
ANDROID 10:


Mirror: https://anonymouswp.stackstorage.com...&node-id=73230

IN21DA tools (indian firmware):
ANDROID 10:


Mirror: https://anonymouswp.stackstorage.com...&node-id=73232

Warning:

As this happened on OnePlus 8 Pro, it is advised to take backup of /persist partition before crossflashing (eg going from International to Indian build) as fingerprint reader may give an error related to enrollment issue. You can do so by using dd if=/dev/block/bootdevice/by-name/persist of=/sdcard/persist.img (you must have root access, which is not something I'm going to explain here) and moving it to your computer/cloud.

Instructions:

Launch MsmDownloadTool V4.0.exe.

On the login prompt select "Other" in the dropdown menu and click on Next.
Wait a few seconds until main window shows up.

Click on Target button and select O2 while using international tool or India while using indian tool or EU while using european tool.
Power your device off.
Maintain volume up and volume down keys to get into Qualcomm EDL mode.
Plug your device to your computer using stock OnePlus cable.
Click on Enum to be sure your device is detected and press Start.
Wait ~300 seconds.
Enjoy your brand new device.

FAQ:

Does this work on Mac or on Linux?

Unfortunately no, tool is Windows only. You should need at least Windows 7.

Why is my antivirus freaking out when unzipping the archive or running the tool?

In an effort to protect reverse engineering from being done (and by extension prevent conversion process like it was done on 6T and 7Pro), OnePlus now use VM Protect V3 in their MSM tools. As this tries to detect debug environment, this is seen as malicious behaviour by some antivirus.

My device isn't detected when I click on "Enum" button

Go to device manager and make sure your phone shows up as QDLOADER 9008.
If it shows up as QHUSB_BULK, it means Qualcomm driver wasn't installed automatically by Windows Update. Download the latest one from Microsoft website at http://download.windowsupdate.com/c/...e309e6259d.cab (source https://www.catalog.update.microsoft...f-335a678dd67a ) and install it manually by right clicking on QHUSB_BULK and selecting "Update driver software" and "Browse my computer for driver software" to where you downloaded CAB file.

MSM tool is stuck on "Param pre-processing"

Ensure you're using the Qualcomm drivers linked above.

MSM tool is stuck on "Sahara communication failed"

Unplug your phone, get in fastboot mode, turn off phone, wait 15 secondes and get back in Qualcomm EDL mode. You can also try using a USB 2.0 port instead of a 3.0 one.

What is SMT Download mode?

Just don't try to unlock that mode, it will wipe your IMEI and your Widevine certificate if you use it.

What is the password of the mirror?

N3v3r S3ttl3 tm

Credits:

@LL Starks for getting 10.5.3 indian link from OnePlus
@Titokhan for being a friend and providing inspiration in writing
@headsh0t95 for being a friend and suggesting me to request an access to upload files on AndroidFileHost now one year ago for my previous threads
@AndroidFileHost for the hosting
AnonymousWP for allowing to link to his cloud as a mirror
OnePlus for the device and OS
The Following 8 Users Say Thank You to Some_Random_Username For This Useful Post: [ View ] Gift Some_Random_Username Ad-Free
21st April 2020, 03:18 AM |#3  
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Thank you!
22nd April 2020, 07:27 PM |#4  
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Quick question:. I currently have a OnePlus 6t and that man tool for the OnePlus 6t also unlocked my bootloader. Will the msntool for the OnePlus 8 do the same? I need to know this before I upgrade.

Thanks for all that you do!
27th April 2020, 09:26 AM |#5  
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Backup the persist partition is very very important!!! This issue is also happen in H2OS, and some people they just relock the bootloader the fingerprint is dead. I think the best opinion is backup the persist partition after unlock the bootloader Immediately.
28th April 2020, 08:52 PM |#6  
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Quote:
Originally Posted by LeBronJu

Backup the persist partition is very very important!!! This issue is also happen in H2OS, and some people they just relock the bootloader the fingerprint is dead. I think the best opinion is backup the persist partition after unlock the bootloader Immediately.

My OP8 fingerprint is dead,

is there any way to fix it? Click image for larger version

Name:	Screenshot_20200428-014048.jpg
Views:	284
Size:	15.4 KB
ID:	5006923

Sent from my IN2015 using Tapatalk
28th April 2020, 08:59 PM |#7  
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Guys please help me.

I need the persist partition image


here is how you get it.





Code:
adb shell

su

dd if=/dev/block/bootdevice/by-name/persist of=/sdcard/persist.img

exit


Sent from my IN2015 using Tapatalk
28th April 2020, 09:04 PM |#8  
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Quote:
Originally Posted by Ibramj12

Guys please help me.

I need the persist partition image


here is how you get it.





Code:
adb shell

su

dd if=/dev/block/bootdevice/by-name/persist of=/sdcard/persist.img

exit


Sent from my IN2015 using Tapatalk

My oneplus 8 is the international version (if it matters)


anyway

if you're rooted you can get it without pc
using any terminal app

Click image for larger version

Name:	Screenshot_20200428-230215.jpg
Views:	200
Size:	32.4 KB
ID:	5006927

Sent from my IN2015 using Tapatalk
29th April 2020, 11:29 PM |#9  
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Quote:
Originally Posted by Ibramj12

My oneplus 8 is the international version (if it matters)


anyway

if you're rooted you can get it without pc
using any terminal app

Attachment 5006927

Sent from my IN2015 using Tapatalk

anyone can help me with partition image?


Sent from my IN2015 using Tapatalk
30th April 2020, 11:50 PM |#10  
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This may be a stupid question... will this MSM work to flash the Tmobile Variant to Global?
1st May 2020, 12:00 AM |#11  
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Quote:
Originally Posted by rjp0615

This may be a stupid question... will this MSM work to flash the Tmobile Variant to Global?

No, it will require modification, which is something way beyond my skills.
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10.5.4 in11aa/ba/da, msm download tool, oneplus 8, op8, unbrick tool

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