Xiaomi Redmi 4 Prime/Pro unlock Bootloader ( Official way )

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kalangosxxx

Member
Mar 15, 2012
25
6
Fortaleza
Bro, thanks very much for the detailed step by step procedure with the unlock of Xiaomi. After this release procedure in the Xiaomi software and TWRP enablement, I pretend to enable the CAMERA2 API and only that. Can I return my cell phone to the original state? Without these security breaches?
 

kibria.mgk

Senior Member
Apr 12, 2017
620
240
Dhaka
Bro, thanks very much for the detailed step by step procedure with the unlock of Xiaomi. After this release procedure in the Xiaomi software and TWRP enablement, I pretend to enable the CAMERA2 API and only that. Can I return my cell phone to the original state? Without these security breaches?
Use redwolf twrp, it has incremental ota support. And you can return to original state after modification for camera2api.
 

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    First things first.
    I have too low amount of posts to post in dev sections so its there.
    None of described software belongs to me. And im not responsible for damages.

    !!! MI FLASH TOOL BELOW !!!
    http://en.miui.com/unlock/download_en.html


    Okay so me and probably others have/had problems with unlocking your Xiaomi Redmi 4 Prime.
    These are simple steps to succes.

    what is needed: Redmi 4 pro, ADB drivers

    1. Sign to Xiaomi and apply for unlocking http://en.miui.com/unlock/
    It is important to add correct data.

    2. Connect to your Mi account on the device and enable Find Device option under Xaiomi cloud
    if it is done correctly u will be able to find ur device at https://i.mi.com/

    3 Wait for permission u will receive SMS message.

    4. When permission is aquired and device is connected to Mi Cloud we have to try to unlock the device.

    5 . Download Mi Unlock software ( added to post up there )

    6 .Enable developer settings
    System info -> couple of clicks on MiUi version
    Back - > more settings -> developer settings - > Enable OEM unlock

    7. Reboot to fastboot ( Vol down + power ) till some (russian?) bunny appears

    8. Perform unlock from Mi Unlocker and press
    Left button
    enter Login(email) and password to mi account
    Connect the phone and press the button !

    9 Reboot. You should be done Congrats !

    You can install miui global now or any other rom. to Perform you have to :
    1. Boot to fastboot
    2.Download Brigudav Recovery https://forum.xda-developers.com/redmi-4-prime/development/recovery-twrp-3-1-1-2-brigudav-t3656372
    3.connect the phone
    4. in console window type: fastboot flash recovery RECOVERYNAME.img
    5.Boot to recovery and install the rom

    Happy flashing !


    Hard brick ?
    Thanks to Butcher33 solution !
    this video
    https://www.youtube.com/watch?v=j27x5iJSS40
    solved the day! Big thanks to the author!
    1
    Hi
    I have recently purchased a Redmi 4 Prime phone that came with the vendor rom and I wanted to flash the latest china dev rom, but am stuck in bootloop. cant enter DL mode, but fastboot is OK. unfortunately none of the adb commads work, the phone is recognized under "fastboot devices" but not under "adb devices". I have tried the fastboot2edl v2 method but is goes straight into bootloop. can you please suggest what to do and help me out?

    Try to turn it off and press volume down + up and power until the LED flashes red and connect USB - it should be recognized as Qualcomm ******

    If not, then build your own deep flash cable or order one on ebay or something... - with that u can reach the DL mode on nearly every Qualcomm device
    1
    this video
    https://www.youtube.com/watch?v=j27x5iJSS40
    solved the day! Big thanks to the author!
    1
    Finally got my unlock permission and I think I did everything correctly but I still get this error msg :crying:
    glRAJpD.png

    And trying with the older unlocker linked in this thread:
    HkXru2g.png
    1
    Then why you say in the unnofficial way this "Warning do not flash xiaomi.eu global or any other unofficial rom this way !".
    It's something new what you say?

    Yes, 4pda patched bootloader appeared after fastboot oem unlock-go solution.