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[Ultimate] Fastboot boot [name].img -> FAILED (remote: 'Unrecognized command boot')

ZT-6ba223c6
Rising Star I
Please tell us some basic information before asking for help:
Model Name: ROG 5 Ultimate
Firmware Version: WW-18.0840.2107.151
Rooted or not: yes
Frequency of Occurrence: every time
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
========================================
Is someone of you able to boot a recovery with the ultimate version?
I'm trying to boot TWRP but I always get the error
Sending 'boot.img' (98304 KB) OKAY [ 0.343s]
Booting FAILED (remote: 'Unrecognized command boot')
fastboot: error: Command failed
Is there anything I can do about it?
Things I've tried:
* 3 different PCs
* 4 different USB cables
* all USB Ports
* different ADB/Fastboot versions
I searched all over the place but every solution so far fails - however I was not able to find an issue related to the Asus ROG Ultimate so maybe there is something special here?
1 ACCEPTED SOLUTION

Accepted Solutions

ronald1985
Community Legend I
ZT-6ba223c6

Of course I've an unlocked bootloader, otherwise I wouldn't be able to boot into fastboot and moving the file in the first place would fail.

Already asked there but no one seems to have an answer.

Didn't know there is a telegram group for it. How do I access it


View post
You can still get into Fastboot without bootloader unlocked, but of course you are restricted. Error message should indicate that anyway, which yours didn't anyway.
On Telegram, just search for ROGPhone5 and you will see it 😄
The other thing I remember need doing is updating the drivers too in Device Manager.

View solution in original post

6 REPLIES 6

ronald1985
Community Legend I
ZT-6ba223c6

Please tell us some basic information before asking for help:

  1. Model Name: ROG 5 Ultimate
  2. Firmware Version: WW-18.0840.2107.151
  3. Rooted or not: yes
  4. Frequency of Occurrence: every time
  5. APP Name & APP Version (If your issue relates to the app):

In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.

========================================

Is someone of you able to boot a recovery with the ultimate version?

I'm trying to boot TWRP but I always get the error

Sending 'boot.img' (98304 KB)                      OKAY [  0.343s]
Booting FAILED (remote: 'Unrecognized command boot')
fastboot: error: Command failed

Is there anything I can do about it?

Things I've tried:

* 3 different PCs

* 4 different USB cables

* all USB Ports

* different ADB/Fastboot versions

I searched all over the place but every solution so far fails - however I was not able to find an issue related to the Asus ROG Ultimate so maybe there is something special here?


[Ultimate] Fastboot boot [name].img -> FAILED (remote: 'Unrecognized command boot')
I take it you have unlocked your bootloader using the APK provided by Asus?
Either way, you should ask XDA and there are Telegram groups for asking help.

ZT-6ba223c6
Rising Star I
Of course I've an unlocked bootloader, otherwise I wouldn't be able to boot into fastboot and moving the file in the first place would fail.
Already asked there but no one seems to have an answer.
Didn't know there is a telegram group for it. How do I access it

ronald1985
Community Legend I
ZT-6ba223c6

Of course I've an unlocked bootloader, otherwise I wouldn't be able to boot into fastboot and moving the file in the first place would fail.

Already asked there but no one seems to have an answer.

Didn't know there is a telegram group for it. How do I access it


View post
You can still get into Fastboot without bootloader unlocked, but of course you are restricted. Error message should indicate that anyway, which yours didn't anyway.
On Telegram, just search for ROGPhone5 and you will see it 😄
The other thing I remember need doing is updating the drivers too in Device Manager.

ZT-6ba223c6
Rising Star I
Thank you I'll try that.
Didn't even know you can access fastboot.. Never tried that to be honest because the first thing I do is always to unlock the bootloader.
My last argument would then be "I said I'm rooted - root without unlocked bootloader shouldn't be possible" 😜