[Guide - HOW TO] Recover LG G7 (or other newer LG phones) from EDL or 9008 mode.

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sourabh7625

Senior Member
  • Jul 20, 2014
    57
    6
    India
    fastboot flash boot boot_a.img
    fastboot flash boot_b boot_a.img
    fastboot flash boot_a boot_a.img
    fastboot flash abl abl_a.img
    fastboot flash abl_b abl_a.img
    fastboot flash abl_a abl_a.img
    fastboot flash laf laf_a.img
    fastboot flash laf_b laf_a.img
    fastboot flash laf_a laf_a.img

    Where do I find these img files?

    from stock KDZ firmware using KDZ extractor.
     

    danman17

    New member
    May 2, 2021
    3
    0
    Hi everyone. I am not able to run the second prompt command. when i write C:\WINDOWS\system32>bcdedit.exe -set TESTSIGNING ON the answer is "Error while setting item data" and below "The value is protected by Secure Boot Policy and cannot be changed or deleted." What do i have to do?
     
    Last edited:

    sourabh7625

    Senior Member
  • Jul 20, 2014
    57
    6
    India
    Hi everyone. I am not able to run the second prompt command. when i write C:\WINDOWS\system32>bcdedit.exe -set TESTSIGNING ON the answer is "Error while setting item data" and below "The value is protected by Secure Boot Policy and cannot be changed or deleted." What do i have to do?

    bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS

    this will work alone, just try further steps.
     

    danman17

    New member
    May 2, 2021
    3
    0
    bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS

    this will work alone, just try further steps.
    Thank you. I solved it by disabling in the bios security boot, and now it works, but I have another problem: in step 7 I don't find tz_z and hyp_z file, I just have tz_a and b, hyp_a and b. Then, when I'm done with QFIL and run fastboot devices, the answer is "???????????? fastboot" and the device exits fastboot mode and starts a boot loop.What should I have?
    Thanks for any suggestions.

    lg G710EM
     
    Last edited:

    mayconz91

    Member
    Apr 24, 2021
    10
    0
    Thank you. I solved it by disabling in the bios security boot, and now it works, but I have another problem: in step 7 I don't find tz_z and hyp_z file, I just have tz_a and b, hyp_a and b. Then, when I'm done with QFIL and run fastboot devices, the answer is "???????????? fastboot" and the device exits fastboot mode and starts a boot loop.What should I have?
    Thanks for any suggestions.

    lg G710EM
    Hi, im having the same problem as you, im my list i dont have tz_z, i only have tz_a and tz_b, the same goes for the hyp_z, only have a and b

    i also dont have the "xbl_config.ebl_902" in the folder, in my case in only have the "xbl_config.elf_902"

    my model is g710emw

    im waiting for answers lol.
     
    Last edited:

    sourabh7625

    Senior Member
  • Jul 20, 2014
    57
    6
    India
    Hi, im having the same problem as you, im my list i dont have tz_z, i only have tz_a and tz_b, the same goes for the hyp_z, only have a and b

    i also dont have the "xbl_config.ebl_902" in the folder, in my case in only have the "xbl_config.elf_902"

    my model is g710emw

    im waiting for answers lol.

    you ned to use only "tz_a" on both "a" and "b" slots , same goes for hyp_a for both a and b slots.

    and for xbl use xbl_config.elf_902

    if you have an altered filename then just look out for same number at end of filename.
     

    mayconz91

    Member
    Apr 24, 2021
    10
    0
    you ned to use only "tz_a" on both "a" and "b" slots , same goes for hyp_a for both a and b slots.

    and for xbl use xbl_config.elf_902

    if you have an altered filename then just look out for same number at end of filename.
    Ok

    now, in this step

    fastboot flash boot boot_a.img

    when i execute the command it shows : fastboot: error: boot partition is smaller than boot image

    the boot_a.img is 64mb is this the right size?
     
    Last edited:

    sourabh7625

    Senior Member
  • Jul 20, 2014
    57
    6
    India
    Ok

    now, in this step

    fastboot flash boot boot_a.img

    when i execute the command it shows : fastboot: error: boot partition is smaller than boot image

    the boot_a.img is 64mb is this the right size?

    on Lg G7 series model as far I know each one has 64MB sized boot partition.
    we already flashed these partions in EDL mode and flashing in fastboot confirms that partitions do not get overwritten.


    if it gives you an error then just perform whole step7 again but this time instead of using V35abl.img use abl_a.img you got from OneKeyExtraction.bat :
    - find select and right click on "abl_a" then manage partition data and select load then select "abl_a.img"
    - find select and right click on "abl_b" then manage partition data and select load then select "abl_a.img"

    after finishing step7(QFIl should not have an error in log console, check for it )
    close partition manager and let it restart device into EDL again.
    to boot into fastboot now press Power and Volume down button and ready to leave Power as soon as phone restart while holding Volume down and let your device as it is in fastboot.

    proceed to step9
     

    mayconz91

    Member
    Apr 24, 2021
    10
    0
    on Lg G7 series model as far I know each one has 64MB sized boot partition.
    we already flashed these partions in EDL mode and flashing in fastboot confirms that partitions do not get overwritten.


    if it gives you an error then just perform whole step7 again but this time instead of using V35abl.img use abl_a.img you got from OneKeyExtraction.bat :
    - find select and right click on "abl_a" then manage partition data and select load then select "abl_a.img"
    - find select and right click on "abl_b" then manage partition data and select load then select "abl_a.img"

    after finishing step7(QFIl should not have an error in log console, check for it )
    close partition manager and let it restart device into EDL again.
    to boot into fastboot now press Power and Volume down button and ready to leave Power as soon as phone restart while holding Volume down and let your device as it is in fastboot.

    proceed to

    i did the entire step 7 again and now, when i execute fastboot erase boot it shows: fastboot: error: Failed to identify current slot

    one more thing, when i execute fastboot devices for the first time, it shows my device, no problem here

    but if i execute fastboot devices again it shows on prompt: "???????????? fastboot" and my cellphone leaves fastboot mode and i need to press any button to restart, is this normal?

    when i execute fastboot erase boot, usually appears "unknown command", but after some tries (usually 4 or 5) it works (but right now fastboot erase boot is not working it only shows Failed to identify current slot or unknown command ),

    the problem is, if i execute it too many times without success my cellphone turns off and then i need to execute the step 7 again, is this normal too?

    i even reinstalled the lg driver and restarted my pc but, for example, i tried again fastboot erase boot

    it only gives me 2 answers "fastboot: error: Failed to identify current slot" or

    Erasing 'boot' FAILED (remote: 'unknown command')
    fastboot: error: Command failed

    after 30 times trying to erase boot without success the cellphone leaves the fasboot mode and i need to press the power button to restart and make it make to fastboot mode.
     
    Last edited:

    Unlocked3

    Member
    May 12, 2021
    7
    2
    I have followed the instructions and cannot boot past lg logo. I am lost because I have tried multiple .kdz files and they all failed to get back to android. I assume it's because I tried to flash ULM firmware instead of PM. I had to use ULM because there are no lg g710PMxx.kdz files as far as I can tell (because Sprint doesn't support FOTA updates, I guess). The .kdz files weren't corrupted because I had no failures extracting the .dz files.
    I have backups of the original abl and laf partitions but nothing else.

    I am talking to a seller on Ebay about getting an up-to-date lg g710PM backup sent to me but I have no clue what program to use, what needs to be sent, and if it will work in the first place.

    Could someone tell me if it's possible to make a Sprint .kdz file I could flash with Qfil or some other utility? Or would I be able to do something with the current firmware and sprinkle in Sprint partition backups? I just need to boot to android and reenable oem unlock to get the phone rooted and continue with my previous goal.

    Thank you and good luck to everyone in our lg issue boat!
     

    mayconz91

    Member
    Apr 24, 2021
    10
    0
    on Lg G7 series model as far I know each one has 64MB sized boot partition.
    we already flashed these partions in EDL mode and flashing in fastboot confirms that partitions do not get overwritten.


    if it gives you an error then just perform whole step7 again but this time instead of using V35abl.img use abl_a.img you got from OneKeyExtraction.bat :
    - find select and right click on "abl_a" then manage partition data and select load then select "abl_a.img"
    - find select and right click on "abl_b" then manage partition data and select load then select "abl_a.img"

    after finishing step7(QFIl should not have an error in log console, check for it )
    close partition manager and let it restart device into EDL again.
    to boot into fastboot now press Power and Volume down button and ready to leave Power as soon as phone restart while holding Volume down and let your device as it is in fastboot.

    proceed to step9
    Thanks, it worked !!!

    i redid the step 7 again, skipped 8 and did the 9, it works fine now.
     

    sourabh7625

    Senior Member
  • Jul 20, 2014
    57
    6
    India
    I have followed the instructions and cannot boot past lg logo. I am lost because I have tried multiple .kdz files and they all failed to get back to android. I assume it's because I tried to flash ULM firmware instead of PM. I had to use ULM because there are no lg g710PMxx.kdz files as far as I can tell (because Sprint doesn't support FOTA updates, I guess). The .kdz files weren't corrupted because I had no failures extracting the .dz files.
    I have backups of the original abl and laf partitions but nothing else.

    I am talking to a seller on Ebay about getting an up-to-date lg g710PM backup sent to me but I have no clue what program to use, what needs to be sent, and if it will work in the first place.

    Could someone tell me if it's possible to make a Sprint .kdz file I could flash with Qfil or some other utility? Or would I be able to do something with the current firmware and sprinkle in Sprint partition backups? I just need to boot to android and reenable oem unlock to get the phone rooted and continue with my previous goal.

    Thank you and good luck to everyone in our lg issue boat!

    okay , so your device can boot up(not having any bootloader problem) but can't get past LG logo to system. right ?

    will you confirm that your device can boot into LG download mode ??
    * switch off device then connect it to PC while holding VOL+ button, now it must shows a USB sign.
     
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    Unlocked3

    Member
    May 12, 2021
    7
    2
    okay , so your device can boot up(not having any bootloader problem) but can't get past LG logo to system. right ?

    will you confirm that your device can boot into LG download mode ??
    * switch off device then connect it to PC while holding VOL+ button, now it must shows a USB sign.
    It shows the download mode screen, but even with LG UP open and searching, the device will just reboot.
     
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    Unlocked3

    Member
    May 12, 2021
    7
    2
    have you installed LG official mobile driver?
    which firmware you are using to get boot into system?
    I am using G710ULM20e_00_NAO_US_OP_1010.kdz as my kdz file. Other kdz files I have downloaded have been corrupted.
    I have the lg Mobile drivers installed from the guide. Are there others?
    EDL and fastboot work but I can only get into fastboot once. Then I get the red case. EDL is pretty reliable to get into.
     
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    • 1
      Hi, i follow this guide to fix my bricked V405EBW (suddenly go to edl mode while using LGUP upgrade fw).
      And now, i'm stuck on step 9, it show download mode's logo (animation), then turn off.
      I try using extracted older fw (20a) and upgraded fw (30b - it's not compelete), but nothing changes, dont know where i went wrong :( Please help me out!
      Thanks

      have you completed step 8 ?
      if yes, close everything then first connect your phone in fastboot and open LGUP click OK(in no device connected popup). a window will open containing empty list.

      now restart phone through fastboot menu and press Vol+.

      *opening LGup first forces phone to keep in download mode.
      1
      Yes, i completed all previous steps. I try holding LGUP Model list window opened, but nothing change.

      My device's status is bootloop (sometimes and go off); download mode fail (pause on download mode icon appear, then turn off); fastboot fail on stock abl but success on v35abl.

      ps: on v35abl, go to download mode is error red case.

      Edit: I just saw a message on my screen after waiting bootloop (in my attach file)

      did your device had a unlocked bootloader ?
      what is your device model ?

      and once more perform step 8 and 9 again as follow :

      in step 8 do this one also in addition to all others.
      -find select and right click on "persist" then manage partition data and select load then select "persist(_something)"

      in step 9 do this one also in addition to all others.
      fastboot erase xbl
      fastboot erase xbl_a
      fastboot erase xbl_b
      -------
      fastboot flash xbl xbl_a.img
      fastboot flash xbl_b xbl_a.img
      fastboot flash xbl_a xbl_a.img

      * boot into fastboot using V35abl. and all the images be flashed in fastboot must come from stock firmware kdz.

      both of these step will ensure your device has a complete and secure qualcomm boot sequence.
    • 3
      ****** Unbrick all LG G7 models ******
      ********** This guide has updated into two methods **********


      (i). Recover from any boot problem to system or download mode.(which is defined below)

      This technique have been very useful to me for fixing my device and there is no any particular guide to fix brick device easily. That's why it is a must to share.
      * As long as you can access EDL(9008) mode in your device you can fix your bricked device *


      There are so many developers online if you can find who claim to fix or unbrick your bricked device by charging a hefty amount even after that you can not trust them.

      ****** I am here just to help you so if you want you can donate to me on paypal ******

      This guide has been compiled to fix all the phones which are in bricked state and completely dead state as long as you can access EDL mode(which is a Qualcomm's hidden flashing mode bult into hardware) you are able to fix your phones.

      This guide applies to all the following problems :
      Boot loop.
      Fastboot boot loop(looping in fastboot).
      Stuck at LG logo.
      No recovery mode.
      No fastboot mode.
      Red triangle(security error).
      "Press key to shut" message displays.
      Seems like No sign of life.
      And when connects to PC :
      QHSUSB BULK or QLOADER or something like that when connects to PC or red LED.

      Why are you facing this problem??
      Downgrading android version of your phone.
      Flashing wrong recovery image.
      Flashing wrong firmware/ROM.
      Flashing wrong bootloader/fastboot image.
      While playing with your phone just for fun.
      And many more....

      Tools required :
      - Qualcomm USB drivers. https://mega.nz/file/YAVhFIiC#nF-cChZklhcsxMHk24GhsB6rlE119erQqmXuBu21c6c
      - LG mobile drivers. https://mega.nz/file/4UU3RSJb#iJu32uFbPsSrhIPoVr-BS1f2RqHnqL95lePDhDnK7NY
      - LGUP tool lab version and LGUP common dll. https://mega.nz/file/MJdjxCqb#THo7EpmCqFUNa5VHMQcWI5D6M4QcR5p2vhQ77le0Gzo
      - LG V35 abl image. https://mega.nz/file/wBV3UaQK#G0bF9gYz9Jb8FjdJsCAP0wmIOSqHrOFUjvUiPOsj91Q
      - LG firmware extractor. https://mega.nz/file/oZMzGS6Q#JmYlsH9YgU_CmR5Ra0gjIOg_4S6fNVFPgl3UV0BRz0s
      - KDZ tools. https://mega.nz/file/hJNVWAyY#KL8dypxmDXOJ3I9njzQW2TYE-ZgrHaiwnmenNbBcGRs
      - QFIL tool. https://mega.nz/file/4AdjXCAS#tWf6XUYO3OxHjZ_XDJZopOtQpVkggW2170QIKDW0JK8
      - Snapdragon 845 UFS firehose. https://mega.nz/file/8Zk0AAJQ#-WBO38OBXo6TnykCoOaoXeV2zBxHaUyoq3sR6lmFTtQ
      - ADB tool. https://mega.nz/file/URtWmAxZ#TRNwkp9ZQw4BG1we2cxu623fT-6O6XJsBcylNevSF0g
      - Stock f/w KDZ for your particuar device no less than last working andriod and build version.
      - Knowledge how to boot into EDL (without shorting test pin it can fuse device board).


      * Steps :
      Step 1 : uninstall all the phone related drivers and restart PC.

      Step 2 : to successfully install drivers and software follow below guide -
      a. open commant prompt with admin rights run these commands so windows can allow to install driver properly.
      - bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
      - bcdedit.exe -set TESTSIGNING ON
      (these will disable driver signature enforcement and put windows into test mode)
      and restart
      c. install Qualcomm drivers
      d. install LG mobile drivers
      e. install QPST
      f. install LGUP lab version and place LGUP_Common.dll in C:\Program Files (x86)\LG Electronics\LGUP\model\common\LGUP_Common.dll and restart PC

      *** When you boot your phone in download mode and instead it goes into fastboot then you should first open LGUP and then connect phone in download mode because I as experienced this time somehow LGUP forces the phone to stay in download mode rather than switching to fastboot ***
      (
      if thuis works proceed to step 9 else not then step 3)

      Step 3 : open LG firmware extract and click open in KDZ row and select downloaded firmware kdz and let it load then check G710xx something from list and click extract if there is any error in log then your kdz file is corrupted, if success then it will produce a DZ file and now in DZ row click open and select DZ file now tool will show you a long list, now select all the items and extract. This will produce so many files in LG firmware extractor folder.

      Step 4 : place your kdz file in KDZ tools folder and select OneKeyExtraction.bat type Y, it will produce a dz file and several img files in a folder named as your firmware KDZ's name. copy boot_a.img , abl_a.img , laf_a.img to adb folder for fastboot flashing.

      Step 5 : open QFIL from it's installation location and check build type to flat build and in programm file select prog_ufs_firehose_Sdm845_lge.elf file and in lower right corner select storage type to UFS.

      Step 6 : connect your device to PC and boot into EDL mode by
      a. if it is in any ON condition : POWER button + VOLUME DOWN and prepare to press VOLUME UP repeatedly as soon as phone switches off
      b. if it is in dead condition : connecting to PC automatically boot into EDL mode.
      if phone is connected in EDL mode now Device manager must show a device under ports tree somehting named as Qualcom HS-USB QLOADER 9008(Com_X)
      * if you have bricked your device then I assume you already know how to boot into EDL mode.

      Step 7 : now in QFIL select port and select your device, select Tools from QFIL toolbar and select Partition Manger, in warning window ckick OK if you've selected right 845's firehose elf file and after success it must show a list of many partions of your phone.
      flashing : it's time for flashing.

      *Note: select all the image files one by one in Lg firmware extract folder by typing name in file name control like as showed in screenshot Files_location.jpg.
      Files_location.jpg


      it will take patience because it's a manual one, order must be followed coz tha's the thing that matters...

      - find select and right click on "xbl_a" then manage partition data and select load then select "xbl.elf_6"
      - find select and right click on "xbl_config_a" then manage partition data and select load then select "xbl_config.ebl_902"
      - find select and right click on "xbl_b" then manage partition data and select load then select "xbl.elf_6"
      - find select and right click on "xbl_config_b" then manage partition data and select load then select "xbl_config.ebl_902"
      - find select and right click on "tz_z" then manage partition data and select load then select "tz.mbn_134"
      - find select and right click on "hyp_z" then manage partition data and select load then select "hyp.mbn_646"
      - find select and right click on "boot_a" then manage partition data and select load then select "boot.img_163830"
      - find select and right click on "cmnlib_a" then manage partition data and select load then select "cmnlib.mbn_81670"
      - find select and right click on "cmnlib64_a" then manage partition data and select load then select "cmnlib64.mbn_81798"
      - find select and right click on "boot_b" then manage partition data and select load then select "boot.img_163830"
      - find select and right click on "cmnlib_b" then manage partition data and select load then select "cmnlib.mbn_81670"
      - find select and right click on "cmnlib64_b" then manage partition data and select load then select "cmnlib64.mbn_81798"
      - find select and right click on "abl_a" then manage partition data and select load then select "V35abl.img"
      - find select and right click on "abl_b" then manage partition data and select load then select "V35abl.img"
      - find select and right click on "raw_Resources_a" then manage partition data and select load then select "raw_resources.img_194918"
      - find select and right click on "tz_b" then manage partition data and select load then select "tz.mbn_134"
      - find select and right click on "hyp_b" then manage partition data and select load then select "hyp.mbn_646"
      - find select and right click on "laf_a" then manage partition data and select load then select "laf.img_81990"
      - find select and right click on "laf_b" then manage partition data and select load then select "laf.img_81990"

      close partition manager and let it restart device into EDL again.

      Step 8 : boot your device in fasboot which is currently in EDL mode, to do so press Power + Volume down button and ready to leave Power as soon as phone restart while keep pressing Volume down
      a. open command prompt in adb folder and verify device connectivity by
      fastboot devices
      * it must show a device something like LMV35EAWx.
      b. perform these commands, order must be followed coz tha's the thing that matters:
      fastboot erase boot
      fastboot erase boot_a
      fastboot erase boot_b
      fastboot erase abl
      fastboot erase abl_a
      fastboot erase abl_b
      fastboot erase laf
      fastboot erase laf_a
      fastboot erase laf_b
      fastboot flash boot boot_a.img
      fastboot flash boot_b boot_a.img
      fastboot flash boot_a boot_a.img
      fastboot flash abl abl_a.img
      fastboot flash abl_b abl_a.img
      fastboot flash abl_a abl_a.img
      fastboot flash laf laf_a.img
      fastboot flash laf_b laf_a.img
      fastboot flash laf_a laf_a.img
      and let your device as it is in fastboot.
      we already flashed these partions in EDL mode and flashing in fastboot confirms that partitions do not get overwritten.

      Step 9 : open LGUP and somehow proceed to flashing window, where you'll find device list option and many flashing options and a firmware list below, in flashing options select Refurbish and drop your KDZ file in firmware list and follow
      LGUP.jpg

      a. now from phone's fastboot menu select restart and hold Volume Up now phone will show download mode bar and in few seconds LGUP will recognise your device in list same as above screenshot.
      b. flash you KDZ and let your device boot into system.


      Now you have a fully working device.


      (ii). Recover from dead boot or no partitions list in QFIL partition manager.(hard brick)
      **if you have urgency you can donate money so I can focus on yours**


      I worked around G7's stock kdz and fortunately end up generating flashing file for a single partition but there are so many(100+) partitions and this single one took 1+ hour, which was hardly to arrange. You can imagine how much time 100+ partitions would take to be prepared.
      Problem is I have a time consuming job so I can not waste my time on this unless you donate some money and get your device guaranteed recovered ASAP.

      ** UPDATE **
      The guide I was working on, was more complex for noob to understand.
      be patience I am slowly working with python scripts and a easy guide which will help you to flash empty device.

      ***use rawprogram and patch at your risk because it will result in 0 IMEI problem that causes no network signal but your device will be fixed***
      And if anyone want to flash firmware through QFIL in that case I am also attaching G710EAW partition.xml , rawprograms.xml, patch.xml and flashable gpt_main & gpt_backup bin.


      Thanks for your support.
      Questions are welcome.


      THANKS SO MUCH
      1
      I have followed the instructions and cannot boot past lg logo. I am lost because I have tried multiple .kdz files and they all failed to get back to android. I assume it's because I tried to flash ULM firmware instead of PM. I had to use ULM because there are no lg g710PMxx.kdz files as far as I can tell (because Sprint doesn't support FOTA updates, I guess). The .kdz files weren't corrupted because I had no failures extracting the .dz files.
      I have backups of the original abl and laf partitions but nothing else.

      I am talking to a seller on Ebay about getting an up-to-date lg g710PM backup sent to me but I have no clue what program to use, what needs to be sent, and if it will work in the first place.

      Could someone tell me if it's possible to make a Sprint .kdz file I could flash with Qfil or some other utility? Or would I be able to do something with the current firmware and sprinkle in Sprint partition backups? I just need to boot to android and reenable oem unlock to get the phone rooted and continue with my previous goal.

      Thank you and good luck to everyone in our lg issue boat!

      okay , so your device can boot up(not having any bootloader problem) but can't get past LG logo to system. right ?

      will you confirm that your device can boot into LG download mode ??
      * switch off device then connect it to PC while holding VOL+ button, now it must shows a USB sign.
      1
      okay , so your device can boot up(not having any bootloader problem) but can't get past LG logo to system. right ?

      will you confirm that your device can boot into LG download mode ??
      * switch off device then connect it to PC while holding VOL+ button, now it must shows a USB sign.
      It shows the download mode screen, but even with LG UP open and searching, the device will just reboot.
      1
      have you installed LG official mobile driver?
      which firmware you are using to get boot into system?
      I am using G710ULM20e_00_NAO_US_OP_1010.kdz as my kdz file. Other kdz files I have downloaded have been corrupted.
      I have the lg Mobile drivers installed from the guide. Are there others?
      EDL and fastboot work but I can only get into fastboot once. Then I get the red case. EDL is pretty reliable to get into.
      1
      Hi, i follow this guide to fix my bricked V405EBW (suddenly go to edl mode while using LGUP upgrade fw).
      And now, i'm stuck on step 9, it show download mode's logo (animation), then turn off.
      I try using extracted older fw (20a) and upgraded fw (30b - it's not compelete), but nothing changes, dont know where i went wrong :( Please help me out!
      Thanks

      have you completed step 8 ?
      if yes, close everything then first connect your phone in fastboot and open LGUP click OK(in no device connected popup). a window will open containing empty list.

      now restart phone through fastboot menu and press Vol+.

      *opening LGup first forces phone to keep in download mode.
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