Mi4c Android 5.1.1 To 7.0

Discussion in 'Xiaomi Mi 4C' started by Masyan, Jul 19, 2017.

  1. iamme729

    iamme729Members

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    #201iamme729,Jan 14, 2018
    Last edited: Jan 15, 2018
    Yes your bootloader is locked ...unlock it via Official unlock tool...but how did you install TWRP if the bootloader is locked ? Use the unlock tool and check the status again ....
    Sent from my Mi-4c using Tapatalk
     
  2. Kockata

    KockataMembers

    Jan 12, 2018
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    ok
    i have same problem.
    after flashing 7.2.9 step 5 stuck to mi logo.. No boot to system.
    bootloader is locked
    trying to unlock with unlock tool and result is:
    veryfying device-OK
    unlocking - NO "Current account cant unlock this device"
    2. i cant flash TWRP via fastboot- error "Partition flashing is not allowed""

    /before 3 days i unlock bootloader officialy way before starting post 170 procedure of upgrading/
    What to do?
    pls help with exact steps
     
  3. Kockata

    KockataMembers

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    and another question. How many times i can unlock bootloader after permition?
     
  4. iamme729

    iamme729Members

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    As many times as you like ...

    Sent from my Mi-4c using Tapatalk
     
  5. lodudo

    lodudoMembers

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    Hello!

    I have the same problem as you and I do not know how to solve it. I can only enter fastboot mode and I can not unlock the bootloader even if I have permissions.

    Have you found the solution ?.

    If you have any ideas, it would be very helpful.

    Thank you
     
  6. mnikolce

    mnikolceMembers

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    #206mnikolce,Feb 13, 2018 at 11:28 PM
    Last edited: Feb 14, 2018 at 11:17 AM
    From latest beta xiaomi.eu 6.12.22 I update to first android 7 xiaomi.eu 7.2.9 the bootloader locked. Now no twrp. Mi unlock stuck on 99% current account cannot unlock this device. I'm pretty sure I'm with the right account... Everything is prepared in pc, in mi cloud etc. I read I can unlock even if xiaomi.eu is the rom, is this right or I must install china beta rom??? What if with latest china beta locks EDL and I can not return to 5.1??? if something goes wrong[​IMG]

    Sent from my MI 4W using Tapatalk
     
  7. Tumtle

    TumtleMembers

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  8. iamme729

    iamme729Members

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    You can unlock it again on Xiaomi EU ROM...you must use the correct account that's on the phone ...
     
  9. mnikolce

    mnikolceMembers

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    Of course is the same account. USB debugging, enable OEM unlock... Everything is done. Except there is no Mi unlock status to pair device and account.

    Sent from my MI 4W using Tapatalk
     
  10. kemot1000

    kemot1000Members

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    #210kemot1000,Feb 17, 2018 at 6:53 PM
    Last edited: Feb 17, 2018 at 8:06 PM
    For those that cannot unlock bootloader offcial way (user cannot unlock this device error message):

    same problem as @Kockata - This user cannot unlock this device for 2 weeks now. I was able to go to miui9 though but max I can go is 7.9.14 - 7.9.21 gives me bootloop.

    Those are steps to get to 7.9.14 xiaomi.eu

    xiaomi.eu

    1. Flash 5.1 android with unlocked bootloader
    5.12.17 -> miFlash - libra_images_5.12.17_20151126.0000.5_5.1_cn -- (https: // androidfilehost.com/?fid=24438995911972289)
    - go to fastboot
    - use MiFlash to install 5.12.17
    if there is partition not allowed error just run in cmd as administrator
    fastboot oem edl
    when flashing finishes restart phone and wait for phone to start to system than restart to fastboot

    check if bootloader is unlocked
    fastboot oem device-info

    2. If it is unlocked install this twrp - found it in this thread (thanks @slimozis) it allows you to flash android 5 and 7 + works even after you get your bootloader locked. (https : // androidfilehost.com/?fid=673791459329071444)
    fastboot flash recovery twrp-20180106-1033.img
    fastboot boot twrp-20180106-1033.img

    3. When in TWRP Copy
    xiaomi.eu_multi_MI4c_7.2.9_v8-7.0.zip
    xiaomi.eu_multi_MI4c_7.9.14_v9-7.0.zip
    to internal Storage

    now install from TWRP 7.2.9 - than wipe davik/cache (not sure if needed but I do it every time)
    reboot to system

    when phone starts go to update app and reboot to recovery
    now install 7.9.14 - wipe davik/cache
    reboot to system

    This is where I stopped. trying to install 7.9.21+ always ends up in bootloop. Anyone any ideas how to go further? Have locked bootloader and working TWRP 3.1.1

    T.

    PS. @mnikolce I installed all sort of fastboot dev roms and didn't get edl mode locked.
     
    mnikolce likes this.
  11. mnikolce

    mnikolceMembers

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    I will try to flash latest china dev fastboot rom (android 7) then will try to unlock bootloader and flash twrp 3.1.1.0 > Xiaomi.eu 8.2.1, I have the permission to unlock, so we'll see...

    Sent from my MI 4W using Tapatalk
     
  12. kemot1000

    kemot1000Members

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    Tried that - same error in unlock tool at 99% account cannot unlock this device - but hope it works for you.
     

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