Rollback Optimus 4X HD from 4.1.2 JellyBean to 4.0.3 Stock ICS

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RuedasLocas

RuedasLocas

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Aug 12, 2012
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fugitive666 said:
anyone there to help me
Click to expand...
Click to collapse
I don't believe that after 4 years people still have problems flashing this device.... I still have it, a damn good phone!!! I also have a g2 mini but lg 4x is much better looking and it might sound weird but, after bloatware being uninstalled 4X HD is faster :)
I still flash my phone like I always did. See http://xdaforums.com/showpost.php?p=38838927&postcount=7
Sometimes, mostly after I reinstall my windows, I need more time for the phone (all the hardware) be recognized and drivers be installed, but apart of that I never had problems. Just need to click on the icon when windows shows that detected a device and wait until see all the hardware with a green mark. Only after that is possible to proceed.
If someone have a problem following my method, I thing that the drivers are not the correct ones, or the cable is not good, or some other problem with the computer.
All the files and programs are provided to download on the link above, soo...

If you're having problems with this device, never try to root a LG2 mini. That's a real headache!!! :silly:

Good luck to all and keep calm, no rush!!!

Best regards,

RuedasLocas
 
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ze7zez

ze7zez

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RuedasLocas

RuedasLocas

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Aug 12, 2012
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ze7zez said:
I have never used on the CM, because there was no such need:
If everything works, then why change?
Click to expand...
Click to collapse

I had it installed (CM) but I gave up due to some bugs never solved. The stock firmware is very good and it looks great.

LG 4X HD substitute, will be probably the G4 but, I don't imagine myself with such a big device. It will be just because of the camera...
 
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GeetaA

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Apr 16, 2016
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:(

Hola, tengo un LG P880 en 4.0.3 V10
Intenté instalarle un Custom Recovery con ROM Manager y se me bloqueó el bootloader (el recovery no sirve, y no tengo forma de hacerle wipe) y estuve intentando varios métodos para poder instalarle 4.1.2 y luego subirlo a 4.4, pero no hay forma. Ninguno de los programas me funcionan. El KDZ_FW_UPD se queda en el número 207, el LGMobile Support Tool no me lo actualiza. Intenté un LGFlash tool distinto al tuyo que me corría el LG Mobile pero cuando el celular se ponía en S/W no lo reconocía y nunca le instaló el sistema.
El LGFlash Tool que usaste en tu vídeo nunca me reconoce el teléfono en la parte de arriba (El tuyo dice X3, el mío se queda en blanco) y cuando le doy a lo de cargar los puertos se queda pegado y no me carga ninguno. No se que otra cosa hacerle. Estoy desesperada intentando solucionar el problema.
Tengo Windows 8, no sé si eso cambie en algo.


Hi, I have a LG P880 in 4.0.3 V10
I tried installing a Custom Recovery with ROM Manager and I blocked the boot loader (the recovery does not work, and I have no way to wipe the phone) and I was trying several methods to set you up 4.1.2 and then upload it to 4.4, but there's no way. None of the programs work for me. The KDZ_FW_UPD stays at number 207, the LGMobile Support Tool does not update it. I tried a different LGFlash Tool than yours but when the phone stays on S/W the program doesn't recognize the phone
The LGFlash Tool that you used in your video never recognize me the phone at the top (Yours says X3, mine goes blank) and when I give it to loading ports is stuck and none I load. Not otherwise make. I'm desperately trying to solve the problem.
Windows 8 I do not know if that changes anything.

Sorry for my bad english xD
 
RuedasLocas

RuedasLocas

Senior Member
Aug 12, 2012
1,580
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Gdansk, Poland
GeetaA said:
Hola, tengo un LG P880 en 4.0.3 V10
Intenté instalarle un Custom Recovery con ROM Manager y se me bloqueó el bootloader (el recovery no sirve, y no tengo forma de hacerle wipe) y estuve intentando varios métodos para poder instalarle 4.1.2 y luego subirlo a 4.4, pero no hay forma. Ninguno de los programas me funcionan. El KDZ_FW_UPD se queda en el número 207, el LGMobile Support Tool no me lo actualiza. Intenté un LGFlash tool distinto al tuyo que me corría el LG Mobile pero cuando el celular se ponía en S/W no lo reconocía y nunca le instaló el sistema.
El LGFlash Tool que usaste en tu vídeo nunca me reconoce el teléfono en la parte de arriba (El tuyo dice X3, el mío se queda en blanco) y cuando le doy a lo de cargar los puertos se queda pegado y no me carga ninguno. No se que otra cosa hacerle. Estoy desesperada intentando solucionar el problema.
Tengo Windows 8, no sé si eso cambie en algo.


Hi, I have a LG P880 in 4.0.3 V10
I tried installing a Custom Recovery with ROM Manager and I blocked the boot loader (the recovery does not work, and I have no way to wipe the phone) and I was trying several methods to set you up 4.1.2 and then upload it to 4.4, but there's no way. None of the programs work for me. The KDZ_FW_UPD stays at number 207, the LGMobile Support Tool does not update it. I tried a different LGFlash Tool than yours but when the phone stays on S/W the program doesn't recognize the phone
The LGFlash Tool that you used in your video never recognize me the phone at the top (Yours says X3, mine goes blank) and when I give it to loading ports is stuck and none I load. Not otherwise make. I'm desperately trying to solve the problem.
Windows 8 I do not know if that changes anything.

Sorry for my bad english xD
Click to expand...
Click to collapse

Bueno, intenta hacer como lo explique yo y con los drivers y programas de mis enlaces. Con calma para que no se te olvide nada.

Try to do it as I explained, with the drivers and programs that I provide on the links.
 
K

kietakas

Senior Member
Jul 25, 2014
119
40
When I run lgflashtool and click the yellow arrow, all ports just show READY and nothing changes. I run it as admin of course. What could be the problem?
 

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kietakas

Senior Member
Jul 25, 2014
119
40
I've tried to follow steps from post 1 instead of 7 and now I'm getting a FAIL after 10% with an error IMEINOTACTIVE (error log attached). Anyone know what can I do?

MattheewHun said:
Why dont you try the another kdz flasher app?
Click to expand...
Click to collapse

Tried KDZ flasher, it gets stuck at "wparam = 2010 lparam = 210" forever.
 

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juanmartinf

New member
Nov 27, 2016
1
0
God damned Genius!!!!!!

I had my optimus 4x hd p880 almost dead, and the only way to get it back to life was this tutorial. Thanks a lot Ruedas Locas !!!!!!!!
 
Phil_Smith

Phil_Smith

Senior Member
Oct 16, 2015
1,713
1,519
LG Optimus 4X HD
Xiaomi Mi 5
kietakas said:
When I run lgflashtool and click the yellow arrow, all ports just show READY and nothing changes. I run it as admin of course. What could be the problem?
Click to expand...
Click to collapse

Exact same thing here.
I know that this is caused by the Windows version, but I don't know how to solve this other than using a Windows 7 machine.
I'm on Windows 10 x64 and just can't get it to work, not even using a virtual machine emulating win7...
Just don't get what can make the difference to a vm ?
 
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  • 82
    SnXo
    SnXo
    Rollback Optimus 4X HD from 4.1.2 JellyBean to 4.0.3 Stock ICS in this case V10H

    Videotutorial: http://www.youtube.com/watch?v=NDyZ8pH2jp0

    1st: U need are the files that you get here: LG FlashTool and Accessories

    2nd: Install the LGUnitedMobileDriver (first LGUnitedMobileDriver_S4981CAN36AP22_ML_WHQL_Ver_3[1].6 & 2nd LGUnitedMobileDriver_S4981MAN36AP22_ML_WHQL_Ver_3[1].6)

    3: Turn Off your Mobile and remove your SD and Sim-Card

    4: Press volumen down and put in your USB-Cable

    5: When your computer detect, it installs the driver

    6: After Driver installation, go to device manager select “LGE CDMA USB SERIAL PORT” right click properties then connection setting advanced and set to “com41″

    7: After that run LG FlashTool

    8: Select in DLL the x3_2008_v0.0.6.9.dll

    9: In S/W select only the LGP880.dz file that i´ve added in dz and dll file folder

    10: In Action Mode select Upgrade DL

    11: in Connection Mode select USB

    12: Click on OK

    13: Click on Port COM settings (COM plug icon) and select 1 ( Unmark the numbers above )

    14: Click start(The Port 1 window should appear READY)

    15: Disconnects USB cable and wait 5 seconds

    16: Press and hold voll down button in Lg P880 and connect USB cable

    17: The update process will begin automatically after that release the Vol down

    18: When the progress reaches 100%, the mobile will power on and boots automatically into ICS!

    19: Congratulation you did it ;)

    20: Now u can Flash v20a again :p


    hopfully that helps to rollback for those they want.

    a thanks would be great

    dont forget to thanks xavierleonelbr from his guide i´ve get some parts ;)

    Some other DZ-Files to flash with LG-Flashtool:

    LGP880AT-00-V10a-EUR-XXX-MAY-23-2012

    LGP880AT-00-V10b-262-000-Jun-11-2012

    LGP880AT-00-V10d-EUR-XXX-JUL-16-2012

    LGP880AT-00-V20a-EUR-XXX-MAR-04-2013

    LGP880AT-00-V20a-BUM-XXX-MAR-05-2013 CN

    LGP880AT-00-V20a-262-000-MAR-26-2013 ADEUBK


    Warning and notes:

    Do not forget backup your apps, pictures, contacts etc. Flash with LGFlashTool will erase all data on the phone!

    Disable Windows Enabler when its running from a season before with the KDZ-Update-tool! It wouldnt work!

    Be sure you have the propper driver instaled and chosed the right options in the comport settings!
    View
    40
    RuedasLocas
    RuedasLocas
    Easyest way...

    To go back to previous firmware (ICS V10x_00) with LGFlash Tool there is no need to invent in device properties
    or others...
    The same methode can be used to do a clean install of the V20A, or other...

    Internal memory will be wiped !!!

    Be sure that you have the latest drivers installed:
    http://www.4shared.com/file/rPpP2btT/LGUnitedMobileDriver_S4981MAN3.html
    http://www.4shared.com/file/ZSMf2x6n/LGUSBModemDriver_Eng_WHQL_Ver_.html

    kdz-update: (updated 08-09-2015)
    http://www.4shared.com/rar/mo5bLPRcce/kdz-udpate.htmll

    install "msxml" (its inside the "kdz-update" folder).

    run windows enabler and turn it ON

    With battery on the phone and the phone off, press "VOL-" and connect the phone
    to the computer while pressing, you'll be in S/W. (If you have issues due the device
    being recognized while in S/W Mode, disconnect from PC, take out the battery and
    put it back again on the phone, try again "Vol- & connect to PC", wait a few seconds
    for Windows to recognize the device).
    Run "LGFlashTool" (its inside the "kdz-upload" folder).
    select the .dz and the .dll

    Official euro_open V20A_00 .dz and .dll:
    LGP880AT-00-V20a-262-000-MAR-26-2013+0
    http://www.4shared.com/rar/i5muvxCb/LGP880AT-00-V20a-262-000-MAR-2.html

    Official euro_open V10H_00 .dz and .dll:
    http://www.4shared.com/rar/LruGBo2Z/V10H_00_dzdll.html

    View attachment 1784755

    Go to "port settings" and select all 16 ports.
    View attachment 1784756

    Start the upgrade clicking in the yellow arrow on the top/left of the program window.
    Three (3) ports will look like comunicating (in the next image you'll see only two cause I'm not really flashing), but
    only one is the right one. Two of them will stay stucked in x% and a third port will go higher. Memorize the one that goes higher cause is that one.
    In my case, this time was the nr. 3.
    View attachment 1784757

    Close the program and re-start it. This time, go to "port settings" and select only the port that you memorized,
    start the upgrade and you just need to wait for the phone to reboot.
    In case of that port fails, choose one of the other two untill you hit the good one.
    If you don't see 3 ports, its something wrong and probably this won't work...
    Easy :D

    To set manually the port to "1", connect the phone in S/W Mode, open windows "Device Manager",
    select “LGE CDMA USB Serial Port”, right click in "properties", connection settings advanced and set it to “com41″

    Video added:
    (select full screen and 1080p for better resolution)

    Report if something doesn't work ;)

    This post was edited cause I realise that is not always the first port the right one, sorry...
    View
    2
    RuedasLocas
    RuedasLocas
    fugitive666 said:
    anyone there to help me
    Click to expand...
    Click to collapse
    I don't believe that after 4 years people still have problems flashing this device.... I still have it, a damn good phone!!! I also have a g2 mini but lg 4x is much better looking and it might sound weird but, after bloatware being uninstalled 4X HD is faster :)
    I still flash my phone like I always did. See http://xdaforums.com/showpost.php?p=38838927&postcount=7
    Sometimes, mostly after I reinstall my windows, I need more time for the phone (all the hardware) be recognized and drivers be installed, but apart of that I never had problems. Just need to click on the icon when windows shows that detected a device and wait until see all the hardware with a green mark. Only after that is possible to proceed.
    If someone have a problem following my method, I thing that the drivers are not the correct ones, or the cable is not good, or some other problem with the computer.
    All the files and programs are provided to download on the link above, soo...

    If you're having problems with this device, never try to root a LG2 mini. That's a real headache!!! :silly:

    Good luck to all and keep calm, no rush!!!

    Best regards,

    RuedasLocas
    View
    2
    O
    osprey23
    SnXo

    Thank you for the instructions. I managed to downgrade to v10 and upgrade to v20 using your method.

    However, the LG Flash Tool needs to be run as an Adminstrator, otherwise it would not work. I found out the hard way. May be you can consider adding this to your instructions as more people will be using Windows 7 and Windows 8 which would be a problem.

    Cheers!
    View
    2
    SnXo
    SnXo
    Turtorial

    I´ve made a smal Videotorturial for this thread.

    http://www.youtube.com/watch?v=NDyZ8pH2jp0

    greetings

    by SnXo


    P.S: Thanks RuedasLocas for your notes
    View

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