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[FIX]LG Flash Tool Stuck At 2%

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d00lz

Senior Member
Feb 4, 2015
427
285
207.244.72.9:80
THIS IS FOR THE D802 ONLY

This is a solution to the LG Flash Tool GUI getting stuck at 2% and giving an error while trying to flash a .KDZ that IS COMPATIBLE with your phone.
I haven't found this solution anywhere on the forums so thought I would share it.
Basically it re-installs your mmcblk partitions.

NOTE: First off, it's worth checking your LG Flash Tool error log to make sure your error is the following
(C:\LGMobileUpgrade\log0.txt)

Code:
04:30:34 : ********* CDMA Model.dll input Parameter End*************
04:30:37 : wParam : 20,     lParam = 540
04:30:37 : MODEL DLL Event : (20, 540)
04:30:38 : Model File Count = 540
04:30:38 : wParam : 100,     lParam = 51
[B]04:30:38 : MODEL DLL Event : (100, 51)[/B]
[B]04:30:38 : Step : TYPE_WPARAM_UPGRADE_ERROR[/B]
04:30:38 : CleanModelDll() :  Free Model.dll
04:30:38 : _DetachDLL Call
04:30:43 : _DetachDLL Call End
04:30:45 : Page_Error ºÎºÐÀÔ´Ï´Ù
04:30:45 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù

The above BOLD text is the common error when the LG Flash Tool is getting stuck at 2%.
Once you've confirmed you are getting the same error AND you are indeed getting stuck at 2%, please continue.

1. Download FixedDownloadCMode_droidth.zip.
2. If you do not already have the ADB driver installed, download and install it.
3. Make sure you have a custom recovery installed. Recommended LATEST version of TWRP for the D802 from HERE.
4. Boot into Recovery
5. Plug LG-D802 into Computer and wait for ADB connectivity.
6. Extract FixedDownloadCMode_droidth.zip and run FixedDownloadCMode.bat.
7. Wait for batch process to finish (It will push all bin and img files, then dd all the files).
8. Boot into Download Mode and your .KDZ should flash without LG Flash Tool getting stuck at 2%.
 
Last edited:

condudad

Senior Member
Jul 31, 2013
183
50
Thanks for posting this, I was getting really frustrated at this error back when I needed to factory reset my phone for warranty. Ended up using the LG Mobile support Tool's Upgrade Recovery function instead.

Will give this a try next time I need to factory reset my phone :good:
 
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d00lz

Senior Member
Feb 4, 2015
427
285
207.244.72.9:80
Thanks for posting this, I was getting really frustrated at this error back when I needed to factory reset my phone for warranty. Ended up using the LG Mobile support Tool's Upgrade Recovery function instead.

Will give this a try next time I need to factory reset my phone :good:

Tell me about it, knowing your KDZ SHOULD be flashing and having it crash on you at 2% is the worst thing in the world :(.


Yeah it's known that changing your ROM can sometimes change the integrity of your partitions. Thanks for sharing your solution.
 
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hsahin4

Senior Member
Jan 14, 2011
162
18
İstanbul
Tell me about it, knowing your KDZ SHOULD be flashing and having it crash on you at 2% is the worst thing in the world :(.
Yeah it's known that changing your ROM can sometimes change the integrity of your partitions. Thanks for sharing your solution.
By the way, I decided to use CloudyG2 rom instead of stock one due to latency during incoming calls.
I tried cloudystock but also it has same bug as it is based on stock.

I am really happy with CloudyG2; smooth, stable, bug free and amazing battery life. Almost 35 hrs with 4hrs screen time.
 

aidasaidas75

Senior Member
Dec 21, 2012
624
1,540
24
Kedainiai
When I had that problem I just downloaded v10 tot files and flashed them it's much easier and it's works perfectly.Arfter flash flashed v20 via kdz and no stuck works like a charm maybe this info will help
 
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Vybramo

Senior Member
Aug 22, 2008
174
8
Kosice
For me dont work ... its hard brick my device.
for me what work ( i can enter into recovery)
Wipe system, data , dalvik, cache.
flash that rom. ( LG flash tool dont detect my device like Optimus lg g3 1.4.1 rom and download mode work without problem) http://forum.xda-developers.com/lg-g2/development-d802/d80220h-original-prerooted-stock-t3019155 FW with bootstack
After flash over http://forum.xda-developers.com/showthread.php?t=2432476 LG flash tool D80210A_00.kdz , becaus Kitkat firmware dont add u stock recovery ( way go into recovery. In Lg flash tool set:
Select Type : CDMA
Phone mode : cs_emergency
select: D80210A_00.kdz
CSE flash
and Start
Dont look at that error message simply press ok and w8 till ur phone boot up. U will have pure stock lg g2 with all drivers like when u buy phone.

The biggest problem of LG flash tool its detecting custom firmware like another FW and its disable download mode flash. Idk why. I try full wipe phone and its doesnt work, only flashinh stock over recovery.

Enjoy i hope my little guide work.
 
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d00lz

Senior Member
Feb 4, 2015
427
285
207.244.72.9:80
For me dont work ... its hard brick my device.

for me what work ( i can enter into recovery)

Wipe system, data , dalvik, cache.

flash that rom. ( LG flash tool dont detect my device like Optimus lg g3 1.4.1 rom and download mode work without problem) http://forum.xda-developers.com/lg-g2/development-d802/d80220h-original-prerooted-stock-t3019155 FW with bootstack

After flash over http://forum.xda-developers.com/showthread.php?t=2432476 LG flash tool D80210A_00.kdz , becaus Kitkat firmware dont add u stock recovery ( way go into recovery. In Lg flash tool set:

Select Type : CDMA

Phone mode : cs_emergency

select: D80210A_00.kdz

CSE flash

and Start

Dont look at that error message simply press ok and w8 till ur phone boot up. U will have pure stock lg g2 with all drivers like when u buy phone.



The biggest problem of LG flash tool its detecting custom firmware like another FW and its disable download mode flash. Idk why. I try full wipe phone and its doesnt work, only flashinh stock over recovery.



Enjoy i hope my little guide work.


This solution is for people experiencing the same error log mentioned in the original post.
However, thank you for sharing your solution for your specific case.
 
Last edited:

hsahin4

Senior Member
Jan 14, 2011
162
18
İstanbul


1. Download FixedDownloadCMode_droidth.zip.
2. If you do not already have the ADB driver installed, download and install it.
3. Make sure you have a custom recovery installed. Recommended LATEST version of TWRP for the D802 from HERE.
4. Boot into Recovery
5. Plug LG-D802 into Computer and wait for ADB connectivity.
6. Extract FixedDownloadCMode_droidth.zip and run FixedDownloadCMode.bat.
7. Wait for batch process to finish (It will push all bin and img files, then dd all the files).
8. Boot into Download Mode and your .KDZ should flash without LG Flash Tool getting stuck at 2%.

Hello,
Now I returned back to stock Turkey ROM (4.4.2 V20C) and trying to install V20H Open Europe but some problem here.
And I decided to try the way that you explained above.

1. I had installled LG Universal Drivers. Does it includes ADB drivers also?
6. Run *.bat file but nothing happens. Do I need to enable something within TWRP environment?

Can you please guide me?
 

d00lz

Senior Member
Feb 4, 2015
427
285
207.244.72.9:80
Hello,
Now I returned back to stock Turkey ROM (4.4.2 V20C) and trying to install V20H Open Europe but some problem here.
And I decided to try the way that you explained above.

1. I had installled LG Universal Drivers. Does it includes ADB drivers also?
6. Run *.bat file but nothing happens. Do I need to enable something within TWRP environment?

Can you please guide me?

1. Download and install ADB & Fastboot Drivers.
2. Restart your PC.
3. Enable USB Debugging in Developer Options.
4. Reboot your phone.
5. Boot your phone into TWRP and plug your phone into your PC.
6. Open cmd.exe by going Start -> Run -> "cmd.exe" -> OK.
7. Type adb devices, you should get an output like this,

ayB4p91.png


8. If you see your device listed adb is working and you can continue.
9. Now exit cmd.exe and extract the FixedDownloadCMode_droidth.zip file.
10. Go into your newly created /FixedDownloadCMode_droidth/ folder and double-click FixedDownloadCMode.bat.

hello how eaxctly to use with adb to start the bat file?

You don't use adb to start the bat file, the bat file is run by double clicking on it with your cursor.
The bat file will take control of adb for you. Make sure your phone is connected via adb first (refer to the steps above).
 
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benveq

Senior Member
May 1, 2008
579
15
do I have to install trwp to be able to rom install? is this method not working for original recovery?
 

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  • 52
    THIS IS FOR THE D802 ONLY

    This is a solution to the LG Flash Tool GUI getting stuck at 2% and giving an error while trying to flash a .KDZ that IS COMPATIBLE with your phone.
    I haven't found this solution anywhere on the forums so thought I would share it.
    Basically it re-installs your mmcblk partitions.

    NOTE: First off, it's worth checking your LG Flash Tool error log to make sure your error is the following
    (C:\LGMobileUpgrade\log0.txt)

    Code:
    04:30:34 : ********* CDMA Model.dll input Parameter End*************
    04:30:37 : wParam : 20,     lParam = 540
    04:30:37 : MODEL DLL Event : (20, 540)
    04:30:38 : Model File Count = 540
    04:30:38 : wParam : 100,     lParam = 51
    [B]04:30:38 : MODEL DLL Event : (100, 51)[/B]
    [B]04:30:38 : Step : TYPE_WPARAM_UPGRADE_ERROR[/B]
    04:30:38 : CleanModelDll() :  Free Model.dll
    04:30:38 : _DetachDLL Call
    04:30:43 : _DetachDLL Call End
    04:30:45 : Page_Error ºÎºÐÀÔ´Ï´Ù
    04:30:45 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù

    The above BOLD text is the common error when the LG Flash Tool is getting stuck at 2%.
    Once you've confirmed you are getting the same error AND you are indeed getting stuck at 2%, please continue.

    1. Download FixedDownloadCMode_droidth.zip.
    2. If you do not already have the ADB driver installed, download and install it.
    3. Make sure you have a custom recovery installed. Recommended LATEST version of TWRP for the D802 from HERE.
    4. Boot into Recovery
    5. Plug LG-D802 into Computer and wait for ADB connectivity.
    6. Extract FixedDownloadCMode_droidth.zip and run FixedDownloadCMode.bat.
    7. Wait for batch process to finish (It will push all bin and img files, then dd all the files).
    8. Boot into Download Mode and your .KDZ should flash without LG Flash Tool getting stuck at 2%.
    4
    :) It' work for you. I so happy if it can help you.
    3
    my flashtool stuck at 2% same as described in this thread.........this solution didn't help to my phone though.......solution is sooooooooooooo simple that nobody couldn't beleive.................

    SOLUTION:do not have to reinstall nothing,same drivers,same flashtool 2014 on the same laptop .............JUST FIND JELLY BEAN KDZ suitable for your model and memory and flash it..............YES,FLASH IT.................when your phone get back to life you can flash what ever you wish again..............:happy flashing :good:
    2
    Hi , i need some help PLEASE. 4 days ago i have flashed a Custom Rom based on V30d lollipop but my model is D805 and i flashed with a nother baseband and bootloader , the thing is that in the zip of the rom was only the boot.img and no recovery. The after flashing my device got on BOOTLOOP and i only have download mode. I've tried to flash a KDZ of my model but every time it kepts in 2 % and nothing happens. Then i try TOT with this tutorial but i ONLY can flash TOT of D802 and no of my model (D805). Now when i plug my lg g2 (cause i dont have battery) it boots well but every 5 minutes reboots itself and it was like i have to configurte all over again. I need help. I have tried with the other DLL (LGUP_8954) but the same error appears. (CROSS DL D802 > D805) . WHAT CAN I DO? PLEASE HELP.
    In your case use my tool,SRKTool nuke download mode after that your device can boot to fastboot mode.in fastboot mode you can use command

    fastboot flash aboot aboot.bin
    fastboot flash recovery recovery.bin

    To fix wrong partition or use

    fastboot boot recovery.img

    To temporary boot to recovery

    Stock files
    aboot.bin/recovery.bin
    Custom recovery
    recovery.img

    THIS METHOD IS A HIGH RISK.YOU MUST ACCEPT YOUR RISK.I'M NOT FORCE YOU TO DO IT.I'M RECOMMEND A CHOICE THAT CAN SOLVE YOUR ISSUE.

    :) I have fixed this issue .
    2
    For me dont work ... its hard brick my device.
    for me what work ( i can enter into recovery)
    Wipe system, data , dalvik, cache.
    flash that rom. ( LG flash tool dont detect my device like Optimus lg g3 1.4.1 rom and download mode work without problem) http://forum.xda-developers.com/lg-g2/development-d802/d80220h-original-prerooted-stock-t3019155 FW with bootstack
    After flash over http://forum.xda-developers.com/showthread.php?t=2432476 LG flash tool D80210A_00.kdz , becaus Kitkat firmware dont add u stock recovery ( way go into recovery. In Lg flash tool set:
    Select Type : CDMA
    Phone mode : cs_emergency
    select: D80210A_00.kdz
    CSE flash
    and Start
    Dont look at that error message simply press ok and w8 till ur phone boot up. U will have pure stock lg g2 with all drivers like when u buy phone.

    The biggest problem of LG flash tool its detecting custom firmware like another FW and its disable download mode flash. Idk why. I try full wipe phone and its doesnt work, only flashinh stock over recovery.

    Enjoy i hope my little guide work.