[OP8][OOS TMO 55CB] Unbrick tool to restore your device to OxygenOS

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victoria0206

New member
Nov 29, 2021
1
0
Southside of Vietnam
Can anyone help me?
I use oneplus 8 Tmobile.
I just upgraded to android 11 and want to downgrade to android 10.
Can anyone answer my question: can I use msmdownloadtool without unlocking the bootloader to downgrade?
Tks for your answer.
 

ZeroAnneBP

New member
Apr 25, 2021
4
2
Redmi Note 8 Pro
OnePlus 8
I used msm tool and it gives an error on mid installation, maybe disconnection but now on the phone throws me a message that says upgrade download failed, i will send an image as an example but that not is my phone. EDIT So i fixed this issue just changing my usb cable, instantly detected the phone...

photo_2021-12-20_07-51-30.jpg
 
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hooutoo

Senior Member
Apr 17, 2009
466
62
Ft. Lauderdale
Does anyone know of a way to oem unlock a in2017 without a token or help from tmob? The oem unlock toggle in Developer options is greyed out. "Bkerler edl" or perhaps gfil? I'm new to in2017 but not to Qfil or EDL. I don't care if I have to gut this phone. It's like the last in a long list of backups. BTW, the Network unlock button just returens and error of Error Code = 1.

Another thing is: Once I get this thing into 9008 it only stays there for a minute or 2, tops, then reboots itself.

I have a couple of LG v60s, which have the same chipset and they're take a while to boot out of 9008.

Any help would be greatly appreciated.
 
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FoxyDrew

Senior Member
Aug 18, 2014
1,185
490
East Taunton
Does anyone know of a way to oem unlock a in2017 without a token or help from tmob? The oem unlock toggle in Developer options is greyed out. "Bkerler edl" or perhaps gfil? I'm new to in2017 but not to Qfil or EDL. I don't care if I have to gut this phone. It's like the last in a long list of backups. BTW, the Network unlock button just returens and error of Error Code = 1.

Another thing is: Once I get this thing into 9008 it only stays there for a minute or 2, tops, then reboots itself.

I have a couple of LG v60s, which have the same chipset and they're take a while to boot out of 9008.

Any help would be greatly appreciated.
There's no knows way at the moment.

If you own the phone you can get it sim unlocked pretty easily if you contact T-Mobile on twitter.
 

hooutoo

Senior Member
Apr 17, 2009
466
62
Ft. Lauderdale
There's no knows way at the moment.

If you own the phone you can get it sim unlocked pretty easily if you contact T-Mobile on twitter.
Thanks for the reply. That's messed up. };( I got the phone from ebay and I think at one time the phone was blacklisted and then had a imei change via medusa. At least that's what the seller told me, but the phone was real cheap! HAHA For some reason though the eom unlock is greyed out but am still able to use other sims, well a least Google Fi, the service provider I'm using now. Guess I'll be looking for another Medusa guy.
 
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brsteej

Senior Member
Aug 8, 2013
70
7
I used msm tool and it gives an error on mid installation, maybe disconnection but now on the phone throws me a message that says upgrade download failed, i will send an image as an example but that not is my phone. EDIT So i fixed this issue just changing my usb cable, instantly detected the phone...

View attachment 5487613
I have same issue i flashed my phone many times passed flash but still same screen cant boot
how did you fixed it
 

FoxyDrew

Senior Member
Aug 18, 2014
1,185
490
East Taunton
everytime i use msm tool i get to setup and always no sim card installed and always rebooting i need help fix?
Have you recently flashed ColorOS or OOS Open Beta? Every time I flash an open beta, than MSM back to stock, I get a broken sim card and bootloops.

I solve this by flashing the earliest MSM, than flashing a newer MSM immedietly after. Not sure why I've had to do this, but it's a consistent issue. Kinda scary because MSM was supposed to be the end all be all to fix any issue
 
Have you recently flashed ColorOS or OOS Open Beta? Every time I flash an open beta, than MSM back to stock, I get a broken sim card and bootloops.

I solve this by flashing the earliest MSM, than flashing a newer MSM immedietly after. Not sure why I've had to do this, but it's a consistent issue. Kinda scary because MSM was supposed to be the end all be all to fix any issue
i came from nameless and i actually fixed my issue by using the oldest one which is 10.5.21in55cb then flashed 10.5.9in21ba euro
 

rehz801

Member
Mar 1, 2016
12
1
Huawei Nexus 6P
OnePlus 6
So my phone isn't able to get to EDL MODE I know how to do it. it just keeps launching fast boot tried over and over again I do got the one plus drivers installed and even tiered adb reboot EDL didn't work although I tried adb devices and my device wasn't listed but it is listed on fastboot devices so I don't know what I'm missing? Let me know if you guys got any ideas using my OP6 for now but I need my OP8 back
 

mynameis8

New member
Mar 29, 2022
4
0
Few noob questions:

1) I want to install LineageOS for which I need to start with Android 11 firmware. Can I use this MSM process to upgrade from my factory Android 10.5.10 directly to 11 and be ready to install LineageOS?

2) Can someone explain how these MSM files are different than the ones provided by OnePlus community group here:

onepluscommunityserver [dot] com/list/Unbrick_Tools/OnePlus_8/T-Mobile_IN55CB/

There is also a tutorial on using those MSM files on the oneplus forums that has plenty of differences to what's posted by OP @Some_Random_Username in this (xda) thread:


Can anyone clarify differences and discrepancies?
 
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Few noob questions:

1) I want to install LineageOS for which I need to start with Android 11 firmware. Can I use this MSM process to upgrade from my factory Android 10.5.10 directly to 11 and be ready to install LineageOS?

2) Can someone explain how these MSM files are different than the ones provided by OnePlus community group here:

onepluscommunityserver [dot] com/list/Unbrick_Tools/OnePlus_8/T-Mobile_IN55CB/

There is also a tutorial on using those MSM files on the oneplus forums that has plenty of differences to what's posted by OP @Some_Random_Username in this (xda) thread:


Can anyone clarify differences and discrepancies?
1. yes
2. they should be the same thing, msm is msm, only difference is what the android version is in it
 
So my phone isn't able to get to EDL MODE I know how to do it. it just keeps launching fast boot tried over and over again I do got the one plus drivers installed and even tiered adb reboot EDL didn't work although I tried adb devices and my device wasn't listed but it is listed on fastboot devices so I don't know what I'm missing? Let me know if you guys got any ideas using my OP6 for now but I need my OP8 back
try on fastboot mode and use vol key to switch the "START" heading and you should be able to find reboot EDL on fastboot
 

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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, regular OP8 and OP8Pro here is the EDL package (also known as MSM tool or unbrick tool) that can revive a bricked OnePlus 8 bought from T-Mobile.

    It will only work with T-Mobile variant IN2017

    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:


    ANDROID 10:

    OOS 10.5.7
    OOS 10.5.20: Gdrive - AFH (credits to @rzracer2 )
    OOS 10.5.21 (credits @LLStarks for finding it)
    OOS 10.5.22 (credits @LLStarks for finding it)


    ANDROID 11:


    Mirror for first and last MSMs: https://onepluscommunityserver.com/


    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 TMO.
    Press Start button so that it waits for your device to be connected
    Power off your device
    Maintain volume up and down buttons to get into Qualcomm EDL mode.
    Plug your device to your computer.
    Should you not manage to do that and have adb access, you can use adb reboot edl instead
    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

    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..._fba473728483260906ba044af3c063e309e6259d.cab (source https://www.catalog.update.microsof...updateid=8ee52ba0-bdef-4009-88cf-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.

    If you can't get into EDL mode by hardware keys, you may use adb reboot edl (will require your phone to still have ADB access)

    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.

    How can I fix "SMT config not found" error?

    Please refer to https://forum.xda-developers.com/showpost.php?p=83448961&postcount=61, all credits to @Shadow12347 for finding it out.

    Credits:

    @Some_Ghost for testing 10.5.7 version on his device
    @Titokhan for being a friend and providing inspiration in writing
    @AndroidFileHost for the hosting
    Votton for providing a server as an alternative mirror
    OnePlus for the device and OS
    3
    I'm still having trouble booting to EDL, I've tried the volume buttons, adb command, and fastboot command, but none have worked for me. When trying the volume buttons it just brings me back to fastboot mode. I don't know what else to do.
    Ah yes. I had an "issue" there as well. I'll elaborate and try to make it easy.
    1. launch your msm tool and connect ONLY the end of the usb that plugs into your PC
    2. Power off your phone all the way.
    3. While holding down both the volume up and down keys (I use my right hand for the volume buttons), I use my left hand and plug the phone into the usb cable.
    4. MSM tool "should" say connected after your computer gives you that "ding dong" windows sound.
    5. Click on connect and click start. DO NOT TOUCH THE PHONE UNTIL IT REBOOTS ITSELF. (caps for emphasis)
    6. for good measure, I reboot the phone back into recovery and wipe all sections, meaning these 3 sections: system setting, cache, and pictures, music, etc. I wipe all three sections 3 times to delete and wipe all old stuff so that you phone boots up clean.
    7. Let me know how it goes. Yes, lots of info here but I want to give you a clean write-up and nothing half-assed. It's just the way I work. <thumbs up>
    3
    is yours TMobile edition?

    Yes, it's the T-Mobile version.

    These are files I have in my system to "unbrick:" my device:
    1. OnePlus 8 T-Mobile 10.5.7 -- unzipped the file before you proceed (you all knew that)
    2. QUD.WIN.1.1+Installer-10037.3+Setup -- this is required. If need this, copy and paste this in google. These drivers were hard to find at first. Unzip the download.

    3. OnePlus_USB_Drivers_Setup -- I thought these drivers were unnecessary but they are VERY necessary. (caps for emphasis)
    4. When you have unzipped the QUD.WIN.1.1+Installer-10037.3+Setup file and the OnePlus_USB_Drivers_Setup, go through the setup wizard. NOTE: Oneplus will ask you for something like "Wincom" for something of that nature, click next. It threw me as well. When the drivers have all been setup up and installed, perform a reboot to refresh Windows (it's good practice especially when dealing with drivers.

    Guys who are having trouble: This is what I did. I powered off the phone completely. Launch the msm download 4.0. When the dialog box comes up, get your phone ready. When the phone is completely off, press and keep the volume up and down button pressed. Plug the small part of usb into the phone. While holding the volume up and down buttons and phone steady, I plugged in the fat end into the other usb port on your computer since we're dealing with unbricking our phone. You will know when connection is made when you hear the windows "attached" sound and you will see a "connected" text in the field on the top in the msm download tool launch box. Click on the connected to highlight this and click start. Do not play with your phone during this time. Let the program do its thing and your phone will automatically reboot when done.

    I hope this helps guys. Wordy yes but it beats being confused as hell....
    2
    I have a T-Mobile OnePlus 8. I let my ex-girlfriend use it and she put a fingerprint on the phone. When I start the phone up, obviously it asks me for her password to get into the phone (not to start Android) if I use this tool is it going to completely reset the phone to the point where I don't have to put in her Gmail after I reset the phone? That's how it works with the 7 Pro. not sure if it is the same here so just wondering if somebody could confirm or if anybody had any idea? Thanks

    That's how it generally works, unless they've changed something this gen, which is unlikely.
    2
    Ah yes. I had an "issue" there as well. I'll elaborate and try to make it easy.
    1. launch your msm tool and connect ONLY the end of the usb that plugs into your PC
    2. Power off your phone all the way.
    3. While holding down both the volume up and down keys (I use my right hand for the volume buttons), I use my left hand and plug the phone into the usb cable.
    4. MSM tool "should" say connected after your computer gives you that "ding dong" windows sound.
    5. Click on connect and click start. DO NOT TOUCH THE PHONE UNTIL IT REBOOTS ITSELF. (caps for emphasis)
    6. for good measure, I reboot the phone back into recovery and wipe all sections, meaning these 3 sections: system setting, cache, and pictures, music, etc. I wipe all three sections 3 times to delete and wipe all old stuff so that you phone boots up clean.
    7. Let me know how it goes. Yes, lots of info here but I want to give you a clean write-up and nothing half-assed. It's just the way I work. <thumbs up>

    Thanks. Your steps are really helpful. just want to share my experience of connecting the phone. If you plug in your USB cable before installing drivers, you need to unplug it after the drivers installed, so the MSM can detect your phone.