Do Not Try Lock Your Bootloader After Unlocked It

Discussion in 'Xiaomi Mi 6' started by alambid, May 30, 2017.

  1. alambid

    alambidMembers

    May 29, 2017
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    I was playing to know how can I lock my bootloader on my mi6 by those command : fastboot oem lock and I end up with this message in boucle when the phone start : the system have been destroyed ! I can't do get to the recovery. Just on fastboot mode but unlocked. I have try all my effort to flash and I fail. I bring it to chinese shop outside and no one still can't make it. Lucky that I'm China and can get to the Xiaomi official repair store to Fixe it for free. So be carefully friends
     
  2. Cecco

    CeccoMembers

    Apr 1, 2016
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    with mi flash you can easily lock it
     
    ivan.martinko likes this.
  3. alambid

    alambidMembers

    May 29, 2017
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    Without replace the current system ? How
     
  4. Cecco

    CeccoMembers

    Apr 1, 2016
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    No with miflash you can reinstall your ROM and after the installation he blocks the bootloader if you want, there is a command called flash and lock
     
    sanzNya likes this.
  5. Atanas Chebishev

    May 30, 2017
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    fastboot oem lock
    this is the locking command from the script.
    See it for your device first, before using it.
     
  6. hidea

    hideaMembers

    Aug 22, 2015
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    After some reading on EN.Miui's forum, there's a post mentioning that relocking bootloader is ****ONLY safe, IF stock recovery is installed**** (no custom recovery like TWRP). Is this true?
     
    Atanas Chebishev likes this.
  7. ingbrzy

    ingbrzyXiaomi.eu Multilang leader
    Staff Member

    Yea.. If you want lock bootloader, you need stock recovery and stock ROM..

    ~Tapatalk~
     
    Atanas Chebishev likes this.
  8. alambid

    alambidMembers

    May 29, 2017
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    How to do it ? I mean to stock recovery and the room ? On the mi6 it's completely block the cellphone of showing that the system have been destroyed. Can't flash it with miflash and can't unlock it.
     
  9. Atanas Chebishev

    May 30, 2017
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    You can try to flash it via Chinese Mi PC suite.
    And there is nothing to lose if you try to unlock it via "fastboo oem unlock-go".
    Wait for another opinion for this method, before try.

    Another try is with engineer cable or button combination to enter in EDL Mode to flash the phone
     
  10. hidea

    hideaMembers

    Aug 22, 2015
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    I already flashed back to stock ROM & stock recovery; what is the next step to re-lock the bootloader? 'Fastboot oem lock'?
     
  11. Atanas Chebishev

    May 30, 2017
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    just choose the scipt that contains "lock" in its name
     
  12. zeork

    zeorkMembers

    Apr 7, 2017
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    #12zeork,Jun 12, 2017
    Last edited: Jun 12, 2017
    Haha why? I unlock and lock btl with ude miflash(option clean and lock. This flash a official rom example china stable dev with stock recovery( mi recovery). Unlock again btl is ofcorse possible.

    Sent from my MI 5C using Tapatalk
     
  13. yemihtun

    yemihtunMembers

    Dec 3, 2017
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    Can I unlock bootloader and then back to lock bootloader ? Is that safe? Pls help.
    I bought mi6 in chinese version and the chinese language driving me crazy.I just want to flash my phone to global ver.And XM said unlock bootloader means low security level so I just need to lock again my mi6 bootloader.
     
  14. Atanas Chebishev

    May 30, 2017
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    you can flash global rom via XiaoMiTool оr Chinese pc suite.
    No need to unlock
     
  15. Bellman

    BellmanMembers

    Sunday
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    I just bought a MI6 in China that had the "9.0.5.0 NCACNEI" (MIUI9) version.
    When I now try to load the global ROM it seems that it is not possible without unlock.
    I downloaded the latest version of the XiaoMiTool and tried to flash the global ROM (miui_MI6Global_V9.0.2.0.NCAMIEI_8e643002bc_7.1.zip) but the tool states that unlock must be done. On the XiaoMiTool web there is some discussion from early Dec about problems with "stock recovery" and I guess this might be a reason for not being able to lock again.

    I have not unlocked yet but I might soon decide to do it even if that probably would result in that it is not possible to lock again.
     
  16. ivan.martinko

    Nov 17, 2016
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    try this..
    http://en.miui.com/forum.php?mod=viewthread&tid=663972&highlight=xiaomitool
    https://mega.nz/#!s5RDGYxC!lAwfJi4s4PgxWo4vIp6fFSE0n-9aPY70KKgWy03o2Do
     

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