OnePlus8 VZW Bootloader is Not Unlockable

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Royk504

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Jan 26, 2022
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rodken

Senior Member
Jan 11, 2010
911
318
The problem lies in the ROM itself which is why flashing a Custom ROM is sometimes a 'crap shoot'.

Either flash stock or flash the firmware (of the Original ROM) and then flash the Custom ROM, but does not guarantee with a high success rate.

Maybe, this tool might have saved the day.
 
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Royk504

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Jan 26, 2022
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The problem lies in the ROM itself which is why flashing a Custom ROM is sometimes a 'crap shoot'.

Either flash stock or flash the firmware (of the Original ROM) and then flash the Custom ROM, but does not guarantee with a high success rate.

Maybe, this tool might have saved the day.
Restoring the modem doesn't work... and now when I go back to the factory rom it gives me this problem...
 

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rodken

Senior Member
Jan 11, 2010
911
318
I restored them with the app you mentioned. Of course I made a backup of the stock rom.. I'm a newbie at this
Forego the use of the app to restore.

Decompress each file created by Partition Backup and use fastboot to flash the files.
Code:
fastboot flash modem modem.img
 

Royk504

Member
Jan 26, 2022
8
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Renuncie al uso de la aplicación para restaurar.

Descomprima cada archivo creado por Partition Backup y use fastboot para actualizar los archivos.
[CÓDIGO] módem flash fastboot modem.img [/ CÓDIGO]

Forego the use of the app to restore.

Decompress each file created by Partition Backup and use fastboot to flash the files.
Code:
fastboot flash modem modem.img
It didn't work, thanks for the help.. I'll leave it that way until there is a solution..
 

JhinCuatro

Senior Member
Mar 2, 2017
288
71
You pull those independently from the rom your on. You on stock a11 verizon. ? Do you know anything about the msm tool for each variant of op8? You can open msm tool. Click F8 on pc and get a readback of whatever partions you need. It puts them on the root of your C: drive. If your not real up to date on tool you should read up on it before doing anything to your device. Download and get on pc and make sure you can connect to it. It's more less an anti-brick tool
Do provide more info. No one has provided any guide whatsoever to doing a MSM backup. I read snippets about using f8 key to select partitions and password. I select readback. But ZERO result. Surely it's due to lack of info and steps. I already scoured these damn threads. Do link or provide a guide,

NVM. Apparently phone must remain stuck to usb when rebooting to edl. Last time i used msm i didn't need to do that.
 
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Xryphon

Senior Member
Dec 1, 2020
85
13
Could the moderators please close this thread? It is misleading as there is now a way for the OnePlus 8 Verizon variant to be unlocked; that guide is in the guides section of the OnePlus 8 forums.
 

clisays

Senior Member
Apr 3, 2022
54
2
I never got a reply to any of my private messages asking about the bootloader unlock, so here's the progress I've gotten on my own -

The Verizon ops files use slightly different crypto than the other variants like T-Mobile
Code:
mbox=        [0xAA,0x69,0x82,0x9E,0x5D,0xDE,0xB1,0x3D,0x30,0xBB,
              0x81,0xA3,0x46,0x65,0xA3,0xE1,0x00,0x00,0x00,0x00,
              0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
              0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
              0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
              0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
              0x0a,0x00]

Code:
Oppo CryptTools V1.2 (c) B. Kerler 2019-2020
MIT License
----------------------------

Extracting instantnoodlev_15_O.07_201103.ops
xml: 153330e00
Extracting prog_firehose_ddr.elf
Extracting prog_firehose_lite.elf

通过一些编辑,可以将手机重新刷新为 instantnoodlet_15_O.16_201001.ops(T-Mobile 变体)——编辑 settings.xml 并更改 <BasicInfo> 和 <Target ID> 标签。

不幸的是,随之而来的是开发人员设置中的“OEM解锁”切换......

[代码]
fastboot oem 解锁
FAILED(远程:'请先刷新解锁令牌。')
[/代码]

[代码]
fastboot.exe oem get_unlock_code
...
失败(远程:未知命令)
[/代码]

因此,还没有引导加载程序解锁,但它正在愉快地运行 T-Mobile 固件。
(wifi、LTE 和指纹似乎工作正常)

稍后我可能会使用欧盟或国际固件再次尝试它,看看它的行为是否有任何不同。
请.how can i fix modem.img 。my sim don't work
 

clisays

Senior Member
Apr 3, 2022
54
2
你把那些从你的ROM中独立出来。你有库存 a11 版本。? 您对每个 op8 变体的 msm 工具了解吗?你可以打开msm工具。在 pc 上单击 F8 并获得您需要的任何部分的回读。它将它们放在 C: 驱动器的根目录上。如果您的工具不是最新的,您应该在对设备进行任何操作之前阅读它。下载并上电脑,并确保您可以连接到它。它更像是一个反砖工具
when me use fastboot ROM flash my device,my phone loss signal,how can i fix it,and my computer table 💻,stay msm tool window,the key f8 can't backup a little, that is computer volume+
 

rodken

Senior Member
Jan 11, 2010
911
318
when me use fastboot ROM flash my device,my phone loss signal,how can i fix it,and my computer table 💻,stay msm tool window,the key f8 can't backup a little, that is computer volume+
You cannot simply flash a ROM via fastboot on the OP8 5G UW and expect the SIM card to function as this issue has been discussed many times over.
 

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  • 13
    I can confirm a working method is available, PM me if you are interested, it will not be posted publicly.
    4
    I never got a reply to any of my private messages asking about the bootloader unlock, so here's the progress I've gotten on my own -

    The Verizon ops files use slightly different crypto than the other variants like T-Mobile
    Code:
    mbox=        [0xAA,0x69,0x82,0x9E,0x5D,0xDE,0xB1,0x3D,0x30,0xBB,
                  0x81,0xA3,0x46,0x65,0xA3,0xE1,0x00,0x00,0x00,0x00,
                  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                  0x0a,0x00]

    Code:
    Oppo CryptTools V1.2 (c) B. Kerler 2019-2020
    MIT License
    ----------------------------
    
    Extracting instantnoodlev_15_O.07_201103.ops
    xml: 153330e00
    Extracting prog_firehose_ddr.elf
    Extracting prog_firehose_lite.elf

    With a bit of editing it's possible to reflash the phone to instantnoodlet_15_O.16_201001.ops (the T-Mobile variant) -- edit settings.xml and change the <BasicInfo> and <Target ID> tags.

    With this comes the "OEM unlock" toggle in Developer settings, unfortunately ....

    Code:
    fastboot oem unlock
    FAILED (remote: 'Please flash unlock token first.')

    Code:
    fastboot.exe oem get_unlock_code
    ...
    FAILED (remote: Unknow command)

    So, no bootloader unlock yet, but it is happily running the T-Mobile firmware.
    (wifi, LTE and fingerprint appear working fine)

    I may take another stab at it later using an EU or international firmware and see if that behaves any different.
    3
    Whatever... I'll bite the bullet. Just ordered one 5 minutes ago and I'll get it on the 6th. Let's see where we end up.
    2
    Here is some proof. And yes he will answer on his time. Sorry that's all I can tell you. Verizon op8 unlocked running pixel experience spoofed as a pixel 4 for all the nifty features. Call screen -assistant 2.0. magisk rooted passing all safety nets,clean slate kernel

    Good to hear, guess i'll keep waiting. Do like the feel and speed of the phone, definitely out performs my Moto z4