Stuck at booting into custom TWRP recovery

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zgfg

Senior Member
  • Oct 10, 2016
    5,321
    2,625
    For anyone pretty much, who has ****ed up his Huawei P9:
    I got to the state where I could only enter Fastboot mode (Press vol- and connect power cable). When I tried to start the phone / go into recovery it would only display the "Your device has been unlocked and can't be trusted" Message. My mistake was to relock the bootloader in an attempt to get the recovery to work.
    I looked for hours for the answer, here is what worked for me:
    follow this tutorial (the "update firmware" part)

    German
    English

    But with real precision, every step.
    If you have a european unbranded L09 you should be fine using the firmware you can find on this site:
    https://thedroidguru.com/download-install-huawei-p9-b394-nougat-update-europe/
    if not you gotta find the full firmware (3 files!!) yourself - good luck!
    If you only want to go back to stock you should be fine afterwards.
    If you want to install twrp for root/custom rom/... follow these steps after installing twrp with the tool:
    Upon flashing TWRP, FIRST THING YOU MUST DO is rebooting to TWRP. If you don't do that, stock Recovery will ovewrite TWRP.
    Find instructions in the TWRP threads how to enforce immediate booting to TWRP, upon you flashed it:
    -Type on the PC: fastboot reboot -but don't press Enter yet.
    -Press and keep pressing Vol+ and Power buttons together on the phone
    -Press Enter on the PC and then immediately unplug USB cabel.
    -When phone shows Booting, release Power but keep pressing Vol+. button

    Hope this helps, I don't take responsability for anything, happy flashing!
    DLOAD does not work for half a year, ie since Huawei stopped releasing FullOTA-MF-PV builds (it worked only for them)
    Here, on XDA there are two proven guides for recovering Nougat (not just for EU c432 but for all custs, not only for P9 L09 but also for L19, L29) - just search for them: HWOTA7, HuRUpdater

    PS: You have crossposted the same to several threads
     

    peanek

    Senior Member
    Nov 23, 2008
    92
    10
    Solved this part by using this TWRP version:
    https://forum.xda-developers.com/p9/development/twrp-t3565703

    The button combination to enter TWRP on P9 EVA-L09 EMUI 5.0 is - Power and Vol+ buttons held while fastboot reboot command is issued in CMD and USB cable unplugged, all at the same time. After device vibrates you should release only the power button. When you see 'Device is booting...' you can release Vol+ too. TWRP should now boot.

    Now on to root...
    Solution:
    https://forum.xda-developers.com/p9/how-to/twrp-3-0-2-0-n-t3506947/post70927601#post70927601

    Just got a lot of issues with this device and flash a valid TWRP after unlocking bootloader.
    Thank you for that post - only this version 3.1.1.1 worked fines like you wrote :)
    Thanks mate !:)
     
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    boughness

    Member
    Jun 20, 2012
    20
    3
    Solved this part by using this TWRP version:
    https://forum.xda-developers.com/p9/development/twrp-t3565703

    The button combination to enter TWRP on P9 EVA-L09 EMUI 5.0 is - Power and Vol+ buttons held while fastboot reboot command is issued in CMD and USB cable unplugged, all at the same time. After device vibrates you should release only the power button. When you see 'Device is booting...' you can release Vol+ too. TWRP should now boot.

    Now on to root...
    Solution:
    https://forum.xda-developers.com/p9/how-to/twrp-3-0-2-0-n-t3506947/post70927601#post70927601

    that's it ^^^ thank you!!
     

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    • 4
      Solved this part by using this TWRP version:
      https://forum.xda-developers.com/p9/development/twrp-t3565703

      The button combination to enter TWRP on P9 EVA-L09 EMUI 5.0 is - Power and Vol+ buttons held while fastboot reboot command is issued in CMD and USB cable unplugged, all at the same time. After device vibrates you should release only the power button. When you see 'Device is booting...' you can release Vol+ too. TWRP should now boot.

      Now on to root...
      Solution:
      https://forum.xda-developers.com/p9/how-to/twrp-3-0-2-0-n-t3506947/post70927601#post70927601
      1
      After flashing twrp you should special reboot to twrp. Adb command reboot with pushing vol + and at the same time disconect usb cable. Check this on twrp official

      Wysłane z mojego EVA-L09 przy użyciu Tapatalka
      1
      Ofcourse fastboot.

      Wysłane z mojego EVA-L09 przy użyciu Tapatalka
      1
      Solution

      For anyone pretty much, who has ****ed up his Huawei P9:
      I got to the state where I could only enter Fastboot mode (Press vol- and connect power cable). When I tried to start the phone / go into recovery it would only display the "Your device has been unlocked and can't be trusted" Message. My mistake was to relock the bootloader in an attempt to get the recovery to work.
      I looked for hours for the answer, here is what worked for me:
      follow this tutorial (the "update firmware" part)

      German
      English

      But with real precision, every step.
      If you have a european unbranded L09 you should be fine using the firmware you can find on this site:
      https://thedroidguru.com/download-install-huawei-p9-b394-nougat-update-europe/
      if not you gotta find the full firmware (3 files!!) yourself - good luck!
      If you only want to go back to stock you should be fine afterwards.
      If you want to install twrp for root/custom rom/... follow these steps after installing twrp with the tool:
      Upon flashing TWRP, FIRST THING YOU MUST DO is rebooting to TWRP. If you don't do that, stock Recovery will ovewrite TWRP.
      Find instructions in the TWRP threads how to enforce immediate booting to TWRP, upon you flashed it:
      -Type on the PC: fastboot reboot -but don't press Enter yet.
      -Press and keep pressing Vol+ and Power buttons together on the phone
      -Press Enter on the PC and then immediately unplug USB cabel.
      -When phone shows Booting, release Power but keep pressing Vol+. button

      Hope this helps, I don't take responsability for anything, happy flashing!
      1
      Solved this part by using this TWRP version:
      https://forum.xda-developers.com/p9/development/twrp-t3565703

      The button combination to enter TWRP on P9 EVA-L09 EMUI 5.0 is - Power and Vol+ buttons held while fastboot reboot command is issued in CMD and USB cable unplugged, all at the same time. After device vibrates you should release only the power button. When you see 'Device is booting...' you can release Vol+ too. TWRP should now boot.

      Now on to root...
      Solution:
      https://forum.xda-developers.com/p9/how-to/twrp-3-0-2-0-n-t3506947/post70927601#post70927601

      Just got a lot of issues with this device and flash a valid TWRP after unlocking bootloader.
      Thank you for that post - only this version 3.1.1.1 worked fines like you wrote :)
      Thanks mate !:)