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FAILED (remote: unknown command)

Discussion in 'Android Apps & Games' started by BroIjustwannaroot, Nov 16, 2019.

  1. BroIjustwannaroot

    Thread Starter

    Hello androidforums.
    I'm having a bit of a problem rooting my LG Aristo 2.
    Whenever I try to execute the command "fastboot flash recovery recovery.img"
    It comes up with this.
    Code (Text):
    1. target reported max download size of 262144000 bytes
    2. sending 'recovery' (16954 KB)...
    3. OKAY [  0.539s]
    4. writing 'recovery'...
    5. FAILED (remote: unknown command)
    6. finished. total time: 0.543s
    Can someone please help me with this?
     


  2. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!

    do you have usb debugging enabled?
     
  3. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!

    also what about oem unlocked?
     
    James L likes this.
  4. James L

    James L Android Expert

    Or your fastboot files are outdated, or the file extension shows recovery.img.img
     
    ocnbrze likes this.
  5. James L

    James L Android Expert

    Or hmm. what is the name of the recovery.img you're flashing is it named recovery.img?
     
    ocnbrze likes this.
  6. BroIjustwannaroot

    Thread Starter

    Yes.
     
  7. BroIjustwannaroot

    Thread Starter

    I have my bootloader unlocked.
    It doesnt show .img.img, and the fastboot files that I downloaded were made in October of this year.
    Yes, this as well.
     
    ocnbrze likes this.
  8. James L

    James L Android Expert

    Type fastboot flash recovery then drag the recovery.img file into cmd and press enter. If that doesn't work then something else is the issue.
     
    ocnbrze likes this.
  9. BroIjustwannaroot

    Thread Starter

    Well, the phone also does run android oreo, and I want to downgrade it.
    Edit: when I execute "fastboot flash recovery C:\adb\recovery.img"
    I get this
    Code (Text):
    1. target reported max download size of 262144000 bytes
    2. sending 'recovery' (16954 KB)...
    3. OKAY [  0.630s]
    4. writing 'recovery'...
    5. FAILED (remote: unknown command)
    6. finished. total time: 0.645s
     
  10. James L

    James L Android Expert

    type fastboot getvar all and then post the results.
     
    ocnbrze likes this.

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