230
Guide [24/06/2016]OnePlus 2: How to Unlock Bootloader, Flash TWRP, Root, Nandroid & EFS Backup and More !

  1. Funk Wizard
    Lollipop Moderator Aug 22, 2015

    Funk Wizard , Aug 22, 2015 :
    FYI @Naman Bhalla @PVS Kharoud

    The only workaround i've found and which has worked for me in absence of flashable zip is to rollback to the first nandroid before root on twrp and apply and install the update.. it worked.
    Now take a Nandroid again for future updates and now set up the device as per preference.

    Screenshot_2015-08-22-12-35-01.png Screenshot_2015-08-22-12-35-09.png Screenshot_2015-08-22-12-42-26.png Screenshot_2015-08-22-12-42-07.png
     

    #81
  2. ogriff
    Jelly Bean Aug 22, 2015

    ogriff , Aug 22, 2015 :

    Good but you could have just used the toolbox which has been around for a week

    https://forums.oneplus.net/threads/files-oneplus2-system-files-toolbox-recovery-rom-drivers.340745/
     

    #82
    Flyologist likes this.
  3. xMadingx
    Honeycomb Aug 22, 2015

    xMadingx , Aug 22, 2015 :
    Nice THX for this usefull thread :)
    In witch way hurt this the warranty vor how deals oneplus with rooted/unlocked devices in case of an hardware issue ? :)
     

    #83
  4. Funk Wizard
    Lollipop Moderator Aug 22, 2015


    #84
    irishrally, JayminVyas and ogriff like this.
  5. ogriff
    Jelly Bean Aug 22, 2015

    ogriff , Aug 22, 2015 :
    I know what you're saying but your guide is not very different at all from the same guide for the one, also consider that the toolbox would be even easier for newbies, but useful never the less.
     

    #85
  6. nikitatibrewal
    Cupcake Aug 22, 2015

  7. Swatto
    Eclair Aug 22, 2015

    Swatto , Aug 22, 2015 :
    Thanks for the reply, I have just tried this but get an error:

    E:\>fastboot flash recovery op2-twrp.img
    target reported max download size of 536870912 bytes
    sending 'recovery' (25956 KB)...
    OKAY [ 0.611s]
    writing 'recovery'...
    OKAY [ 0.219s]
    finished. total time: 0.830s

    E:\>fastboot boot recovery op2-twrp.img
    cannot load 'recovery': No such file or directory

    Any ideas please?
     

    #87
  8. Chongchiyip
    Gingerbread Aug 22, 2015


    #88
    Funk Wizard likes this.
  9. Swatto
    Eclair Aug 22, 2015

    Swatto , Aug 22, 2015 :
    Hmm strange, it is working now - TWRP has stuck, I can get to it without having to use fastboot.

    Thanks for the help.
     

    #89
  10. Vector
    Jelly Bean Aug 22, 2015


    #90
    Funk Wizard likes this.
  11. Funk Wizard
    Lollipop Moderator Aug 22, 2015

    Funk Wizard , Aug 22, 2015 :
    Try to boot using Vol Down & Power
     

    #91
  12. Swatto
    Eclair Aug 22, 2015

    Swatto , Aug 22, 2015 :
    Yep just tried and works fine.
     

    #92
    Funk Wizard likes this.
  13. Funk Wizard
    Lollipop Moderator Aug 22, 2015


    #93
  14. Shripad
    Ice Cream Sandwich Aug 22, 2015

    Shripad , Aug 22, 2015 :
    Anyone else having issues after the latest OTA update?

    Cant seem to unlock the bootloader after updating.

    Code:
    G:\Oneplus 2\adb_fastboot>fastboot oem unlock
    ...
    FAILED (remote: oem unlock is disabled)
    finished. total time: 0.010s

    Nevermind, found the option under dev settings.
     

    #94
  15. Shripad
    Ice Cream Sandwich Aug 22, 2015

    Shripad , Aug 22, 2015 :
    One additional thing. I had unlocked the bootloader before but didnt root as I wanted to test the device bone stock first.

    The OTA locked the bootloader again which is first for me.

    Also after unlocking the bootloader this is what I am getting which is exactly what I got before.

    Interesting that Device tempered flag is remaining false after oem unlock.

    Code:
    G:\Oneplus 2\adb_fastboot>fastboot oem device-info
    ...
    (bootloader)    Device tampered: false
    (bootloader)    Device unlocked: true
    (bootloader)    Device is_verified: false
    (bootloader)    Charger screen enabled: false
    (bootloader)    Display panel:
    (bootloader)    console_locked: 1
    (bootloader)    exec_console_unconsole: 0
    OKAY [  0.071s]
    finished. total time: 0.071s
     

    #95
  16. skuk4526
    Froyo Aug 22, 2015

    skuk4526 , Aug 22, 2015 :
    My bootloader got locked too and now I'm gonna lose all my apps data in the process. Grrrr :X
     

    #96
  17. inffy
    Nordics POC Assistant Head Moderator Aug 22, 2015

    inffy , Aug 22, 2015 :
    With the full OTA zip you can flash with twrp. Did it yesterday and still am unlocked
     

    #97
    Funk Wizard likes this.
  18. gotovamsee
    Gingerbread Aug 22, 2015

    gotovamsee , Aug 22, 2015 :
    Appreciate all your effort's. For those of us who took Nandroid backup after rooting, show us a way to get out of this situation and flash the OTA updates.
     
    Last edited: Aug 23, 2015

    #98
  19. VirusKA
    Gingerbread Aug 22, 2015


    #99
  20. ashley-rodwell
    Cupcake Aug 22, 2015

    ashley-rodwell , Aug 22, 2015 :
    I'm not sure if I'm being stupid, but Ive followed all steps and when I hold down the volume down and power key, I'm booted into a OnePlus branded recovery, how can I avoid this please?

    If anyone has made a video guide, this would be very useful!