Question fastbootd mode not possible

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dlareghoe

Member
Dec 1, 2017
17
6
OnePlus 5T
OnePlus 8 Pro
Hi there,

I am trying, because of bricked device, to get in fastbootd mode.
I'm using the command 'fastboot reboot fastboot', which ist the correct syntax, after some instructions.
Unfortunately, the only result is: "fastboot: usage: unknown reboot target fastboot"
Is there any idea, how to get into fastbootd mode?

Thank you
g.
 

Flying Fox

Senior Member
Dec 21, 2010
590
777
Vienna
OnePlus 9 Pro
Hi there,

I am trying, because of bricked device, to get in fastbootd mode.
I'm using the command 'fastboot reboot fastboot', which ist the correct syntax, after some instructions.
Unfortunately, the only result is: "fastboot: usage: unknown reboot target fastboot"
Is there any idea, how to get into fastbootd mode?

Thank you
g.
No chance to get into fastboot mode with Power Buttom, Volume up and Volume down?
If yet, fastboot boot boot.img sometimes helps. At least it did it for me...
 

craznazn

Senior Member
Nov 12, 2009
457
199
OnePlus 8T
OnePlus 9 Pro
No chance to get into fastboot mode with Power Buttom, Volume up and Volume down?
If yet, fastboot boot boot.img sometimes helps. At least it did it for me...
There's are definitely ways to break fastbootd. Sounds like op doesn't have issues getting to bootloader. MSM is the easiest way to fix it and that's the way I'd go if you didn't mess with your device too much. You can also flash your backup super.img from bl and hope for the best.
 
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dlareghoe

Member
Dec 1, 2017
17
6
OnePlus 5T
OnePlus 8 Pro
What is your device's model number, and which msm did you try?
i'ts reported as LE2123, in bootloader is name lahaina
MSMTool ist from Post #1 here:
 

craznazn

Senior Member
Nov 12, 2009
457
199
OnePlus 8T
OnePlus 9 Pro
i'ts reported as LE2123, in bootloader is name lahaina
MSMTool ist from Post #1 here:
You need the correct msm tool

 
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Reactions: dlareghoe
Hi there,

I am trying, because of bricked device, to get in fastbootd mode.
I'm using the command 'fastboot reboot fastboot', which ist the correct syntax, after some instructions.
Unfortunately, the only result is: "fastboot: usage: unknown reboot target fastboot"
Is there any idea, how to get into fastbootd mode?

Thank you
g.
On my last op device 7tpro. The only way to get to fastboot d was with phone on and use adb reboot fastboot. The fastboot reboot fastboot never worked for me and I assume it's the same on this device. I would go for the msm
 

dlareghoe

Member
Dec 1, 2017
17
6
OnePlus 5T
OnePlus 8 Pro
You need the correct msm tool


That was my mistake.
Now working perfect again.
Just had to find a Windows Machine, MSMtool don't likes VMs
 

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