Develop Bugs

[GUIDE] Flashing Original Firmwares >1GB / Unbrick Procedure (UPDATED 07/12/13)

If you can get in download mode, nothing is lost. You can still go back and restockify you LG Optimus G (stock rom ,locked bootloader ,no root).
Original Work by [email protected] I have only translated it to English
Tested and working on LG-E975
Some tips before you start
As you will see is a fairly simple procedure, but not without risk. Take a quick read the entire guide before you begin: it will help you understand how to move.
The most important thing is to keep calm, do not panic and do not crush random keys. If you do not understand a passage, reread it. If you have not figured it out yet, reread it AGAIN or ASK here for help. No one runs behind you, so do not do things in a hurry.
I DO NOT TAKE ANY RESPONSIBILITY IF YOU BRICK YOUR PHONE.
Given that at end of the flash is recommended to do a hard reset, is a good idea to make a backup of all your personal data (photos, videos, etc etc), contacts , and if you want even applications.
DON'T FORGET TO BACK UP EFS PARTITION!
Prerequisites
1. Download the KDZ with this tool (credits [email protected]) https://mega.co.nz/#!wxoHSayQ!AsUn6wfsc0rts87HIlOSwBd9dilot2229useWzrsH_g
2. Download and install the LG USB drivers LG USB Drivers
3. Download this file. It's a compressed file that contains everything you need NEW KDZ Updater
4. Download and install LG Mobile Support Tool http://csmg.lgmobile.com:9002/client/app/B2CAppSetup.exe
Let's start
1. Extract the "Flashtool" folder on the desktop, or where you want. Open the folder "Flashtool" and install msmxl.msi (if not already installed).
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
2. Turn off the phone and connect it to the PC with the USB cable while holding VOLUME- AND VOLUME +, until you see the download mode logo. The PC will install some drivers. There may be a kind of protection that prevents you enter this mode if there is too little current on the phone.
However, you must be able to get to the screen that's underneath.
4. Go back to Flashtool folder and run as administrator WindowsEnabler.exe. Go to the bar at the bottom right, and click once with the left mouse button over the icon of WindowsEnabler, so that appears the "On"message.
5. Now run as administrator UpTestEX.exe and do the following:
-Select the .KDZ file that you want to flash
-Set "3GQCT"
-Set PhoneMode "EMERGENCY"
Once done, click "Normal web upgrade test"
6. In the next window click "Upgrade Start"
7. Wait a few seconds an a new window will pop up.
- Click "Clear phone.."
- Select different country if you're not in Korea
- Select Language
- Click OK
After this the LG flashing tool should start analyzing your phone and flashing the .KDZ
Once done you can detatch the USB cable and see if the phone boots up. However it will probably bootloop. In this case follow the Hard Reset Procedure below.
Hard Reset Procedure
The phone has to be off. Hold Volume - AND Power , a message will show up confirming the factory reset. Press Power Button twice , than wait. It will auto reboot.
Thanks:
- [email protected] For the realization of the guide
- [email protected] For the big work regarding .KDZ files
- [email protected] Flashing 1 GB and greater .KDZ
Notes
- I have translated this guide because the one I found was little bit tricky unclear and didn't work for me, I hope I have done a good job. I'm anyway available to any modification. Just write below.
- Also I'm Italian so there may be some mistakes in the translation , report back i will correct them with pleasure.
Don't forget to report back if it worked!

reserved 1

Does this ring a bell to you?
http://forum.xda-developers.com/showthread.php?t=2010624
Another question, why place the kdz folder in C:/? I have used kdz updater more than 10 times,it's well placed in D:/Downloads/ folder.It's working everywhere,no need for a special path.
And you didn't mention the 1gb+ file error. kdz updater will not work with bigger files.
What's tricky in potatohead thread?
1.have proper drivers installed,this is universal law for ALL devices. no drivers,not working.
2.download correct kdz file for your phone.
3.download kdz updater
4.enter download mode
5.open kdz updater and choose the file,selecting the right settings.
6.start ,wait to finish and that's it.
If anyone understood something else,it's not the author's fault.

I did all that you point in your guide but during the process, the program went in Not Responding, and after 30s Windows said he closed the program , and now my phone is stuck in Download Mode... Please help me

What windows are you using, also, what machine(laptop/desktop)..
If you are using a desktop,make sure you are using a rear usb port,not front and not through a usb hub,not even an usb extension cable.
if you are using a laptop,be sure you are using usb 2.0,not 3.0.

Rockguy40 said:
5. Now go back in Software Update, select the .KDZ file that you want to flash, and set entries as in the picture. Type "3GQCT" PhoneMode "EMERGENCY".
Click to expand...
Click to collapse
It's not ''Emergency''...phone mode must be ''CS_EMERGENCY'' :good:

Backstaba said:
I did all that you point in your guide but during the process, the program went in Not Responding, and after 30s Windows said he closed the program , and now my phone is stuck in Download Mode... Please help me
Click to expand...
Click to collapse
try using this version, tested windows 7 64 http://www.mediafire.com/download/ekkglj22rh6alho/FlashTool.1.0.54.rar

JasonBourne.Qc said:
It's not ''Emergency''...phone mode must be ''CS_EMERGENCY'' :good:
Click to expand...
Click to collapse
I didn't write the guide as I said , anyway EMERGENCY mode worked for me.

Backstaba said:
I did all that you point in your guide but during the process, the program went in Not Responding, and after 30s Windows said he closed the program , and now my phone is stuck in Download Mode... Please help me
Click to expand...
Click to collapse
As I write in the guide it's normal for the program to go in non respond when decompressing the .kdz but if you don't touch the windows (not a single click) of the updater, windows shouldn't auto kill the program.

it not work
I cant found LG mobile usb modem I am installed driver
Phone was not found from KDZ (
help me..
sorry, my ENG very bad

Rockguy40 said:
If your phone is stuck on the logo LG, do a hard reset .... See below for the procedures.
If the phone starts up as normal, it's recommended to do a hard reset.
Hard Reset Procedure
The phone has to be off. Hold Volume - AND Power , a message will show up confirming the factory reset. Press Power Button twice , than wait. It will auto reboot.
Click to expand...
Click to collapse
My phone get stuck on the logo LG but I can't hard reset ( Hold Volume - AND Power : nothing show on screen ), what do I have to do now?
thank in advance!

Hi,
Interesting post, so this i to unbrick a phone and revert back to original state of the phone (out of the box).
Is this also a possible method to flash any firmware I want. Let me explain, I have my new OG from French Operator SFR with a custom ROM and want to install as a replacement the latest FRA or EUR stock firmware from LG. Can this method be executed safely, OR should I unlock my bootloader and go for a firmware flash through the CWM recovery way instead ?
Thanks for your tip.

bobthedwarf said:
Hi,
Interesting post, so this i to unbrick a phone and revert back to original state of the phone (out of the box).
Is this also a possible method to flash any firmware I want. Let me explain, I have my new OG from French Operator SFR with a custom ROM and want to install as a replacement the latest FRA or EUR stock firmware from LG. Can this method be executed safely, OR should I unlock my bootloader and go for a firmware flash through the CWM recovery way instead ?
Thanks for your tip.
Click to expand...
Click to collapse
Well, i am now root and have unlocked boot loader and installed cwm touch recovery. I feel it was all useless for my purpose being : install à stock firmware instead of my sfr operator ROM.
The right procedure will be through kdz?
CAN i install a lg firmware now from cwm ?

Firmware link update
Please, anyone knows new links to LG E975 original firmware? The link I found for Italy versions are not working anymore. I need unbranded and Vodafone versions. Many thanks.

Lg-firmware.com
Sent from stock LG E975/smart phones,dumb people. now Free

LGE975 firmware
Many thanks for the help but Lg-firmware doesn't work, google suggested lgfirmwares but there is only one type of firmware for LGE975 and the link is broken...
I saw that the link have been only modified in csmgdl lgmobile com but the files are still there.

I just downloaded 10h open romania from that place.
Sent from stock LG E975/smart phones,dumb people. now Free

hi i can't seem to get the KDZX_FW_UPD to open. i've tried running it in admin mode and installing the msxml first but no luck, can someone help?

kimitza said:
I just downloaded 10h open romania from that place.
Sent from stock LG E975/smart phones,dumb people. now Free
Click to expand...
Click to collapse
Does 10h support English...??
Sent from my LG-E975 powering Stock 4.1.2

Yes,it has all the languages...

[Q] Help! Accidentally formatted system

Help! I accidentally format/system and format/data on recovery mode. I was trying to cleanout my sdcard to start fresh but i guess i erased "everything." Now i only get the LG logo or Fastboot when i power on my LG E975.
Please help!

Did you make a nandroid backup?
Sent from my HTC One XL using XDA Premium HD app

st3wy said:
Did you make a nandroid backup?
Sent from my HTC One XL using XDA Premium HD app
Click to expand...
Click to collapse
yes i have nandroid backups on my laptop... i also have the kdz updater.. thing is i only get the LG logo or fastboot.

If you have custom recovery send rom.zip using adb.
Rom should be smaller for faster update.
Adb push rom.zip /sdcard/
And wait till finish.
Or goto download mode and use kdz updater and flash any 1gb or less kdz
Sent from my LG-E975 using Tapatalk

atifsh said:
If you have custom recovery send rom.zip using adb.
Rom should be smaller for faster update.
Adb push rom.zip /sdcard/
And wait till finish.
Or goto download mode and use kdz updater and flash any 1gb or less kdz
Sent from my LG-E975 using Tapatalk
Click to expand...
Click to collapse
Hi atifish. Initially, all i got was the LG logo, but i managed to get into download mode. I tried using the kdz update but i always got a phone not found error. I uninstalled-restarted-reinstalled the LG drivers on my windows 8 laptop but still got the same error. I checked Device Manager and i dont get any LG modem (so i cant disable). All i'd get is this:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Tried a windows 7 laptop and was able to disable the LG modem, but the kdz update never finished flashing. I know to ignore the error messages but i had been more than an hour.
**** Just ow i noticed that this link: http://forum.xda-developers.com/showthread.php?t=2010624 indicates that i should select CS Emergency. However on another guide (the one i followed) it said to use Emergency. Was that the reason why i couldn't get a successful kdz update on Windows 7?
Now my LG only goes into Download mode and can't get anything else.
Please help! Im not familiar with the steps to do adb..

using windows 7 laptop with internet working
1: put phone in download mode
2: plug in the phone
3: windows should start installing drivers now, wait for it to finish
4: open kdz updater, put it in emergency/ cs_emergency (iv tested they all work just fine)
5: flash the kdz file which is 1GB or less
if phone boots good but still wipe anyway.
if phone doesn't boot, gets into boot loop, do a wipe using recovery (learn how get into recovery if you dont know, remember if stock recovery you will loose all your files).
NOTE:
if you are on custom recovery and want to retain files/pictures goto recovery first and format system partition and than do all the steps above, no need to wipe this time.
ofcourse you already formatted, this is for future reference, don't get confused.

atifsh said:
using windows 7 laptop with internet working
1: put phone in download mode
2: plug in the phone
3: windows should start installing drivers now, wait for it to finish
4: open kdz updater, put it in emergency/ cs_emergency (iv tested they all work just fine)
5: flash the kdz file which is 1GB or less
if phone boots good but still wipe anyway.
if phone doesn't boot, gets into boot loop, do a wipe using recovery (learn how get into recovery if you dont know, remember if stock recovery you will loose all your files).
NOTE:
if you are on custom recovery and want to retain files/pictures goto recovery first and format system partition and than do all the steps above, no need to wipe this time.
ofcourse you already formatted, this is for future reference, don't get confused.
Click to expand...
Click to collapse
How long does the flash process take? i not sure if im using the proper kdz updater... i have two versions, one with the LGP920.dll and the other with LGP880.dll... neither work for me. Process just stops during updating... and i wait 30-45 minutes.
and do i still use the windows enabler and disable the LG modem?

No dll required, what are you using?
I don't enable windows enabler on win7 but you can. No need to disable anything.
Usually takes 7 8 minutes before phone boots.
Sent from my LG-E975 using Tapatalk

atifsh said:
No dll required, what are you using?
I don't enable windows enabler on win7 but you can. No need to disable anything.
Usually takes 7 8 minutes before phone boots.
Sent from my LG-E975 using Tapatalk
Click to expand...
Click to collapse
I waited much much longer than that. Here's the contents of my kdz updater folder:
This is very frustrating.

lkgonzales said:
I waited much much longer than that. Here's the contents of my kdz updater folder:
This is very frustrating.
Click to expand...
Click to collapse
ok use the one with p920.dll
first install the msxml.msi and restart computer.
run as admin kdz_fw_upd.exe
type = 3gqct
phone mode = emergency / cs_emer
load kdz file
launch soft update
cant help you more, busy now office , will see your posts after atleast 6 hours

atifsh said:
ok use the one with p920.dll
first install the msxml.msi and restart computer.
run as admin kdz_fw_upd.exe
type = 3gqct
phone mode = emergency / cs_emer
load kdz file
launch soft update
cant help you more, busy now office , will see your posts after atleast 6 hours
Click to expand...
Click to collapse
Thanks.. If i use LGP920.dll it doesnt work, but if i use the LGP880.dll, it gets further. I missed out on the msxml.msi installation.

lkgonzales said:
Thanks.. If i use LGP920.dll it doesnt work, but if i use the LGP880.dll, it gets further. I missed out on the msxml.msi installation.
Click to expand...
Click to collapse
I got it to work! All that was needed was the msxml installation! Thanks so much!

lkgonzales said:
I got it to work! All that was needed was the msxml installation! Thanks so much!
Click to expand...
Click to collapse
Nice Job. :good:

lkgonzales said:
I got it to work! All that was needed was the msxml installation! Thanks so much!
Click to expand...
Click to collapse
Glad to help
Sometimes small things gives major head aches-
Sent from my GT-P3100 using Tapatalk HD

atifsh said:
Glad to help
Sometimes small things gives major head aches-
Sent from my GT-P3100 using Tapatalk HD
Click to expand...
Click to collapse
Hi,
I think you can help me. If yes, read my problem on the thread below and reply me:
http://forum.xda-developers.com/showthread.php?t=2492105

mansoor3131 said:
Hi,
I think you can help me. If yes, read my problem on the thread below and reply me:
http://forum.xda-developers.com/showthread.php?t=2492105
Click to expand...
Click to collapse
You have few options' but patience necessary,
Option 1
1 download cm10.1.3 for e975
2 download and install notepad++
3 open the rom zip file and double click updater script, it will prompt to open with dialog, choose notepad++ (i use winrar)
4 delete everything above the line that start with mount ....
5 closer winrar it will prompt to save press yes than again yes
6 send this file via adb and flash
Option 2
Get kdzupdater, install msxml.msi restart
Run kdz update as admin and flash e975 10d kdz
Or f180l kdz
http://main.develoid.com:82/lg/Optimus G/F180L10M_00.kdz
Option 3
Requires fast internet
Get lg software update from korean site and flash f180
Sent from my GT-P3100 using Tapatalk HD

You need .net framewrok + msxml for kdz
Sent from my LG-F180K using Tapatalk

[CWM/ROOT/OTA] Alcatel One Touch Pop S7 / Vodafone Smart Power

Hi everyone, We rooted the Alcatel OT Pop S7 !
thanks goes to my friend @danycmoi who helped me to get this device rooted !
Reminder : We are not responsible if your device get damaged while rooting it...
Click to expand...
Click to collapse
Here's all you need :
- Recovery.img+le Scatter File (For POP S7 ONLY) : http://d-h.st/BPN (You can try it on Vodafone Smart4Power but backup your phone first !)
- Root_KitKat_4.4.zip : http://d-h.st/vkQ
- MTK Driver_Auto_Installer_v1.1236.00 : http://d-h.st/p3m
- SP FlashTools V5.XX : http://mtk2000.ucoz.ru/down11/SP_Flash_Tool_v5.1352.01.rar
How to flash :
0- Copy "Root_Kitkat_4.4.zip" in your SD card.
1- Make sure you have USB debug option checked (in settings/developpers options).
2- Open and install the MTK Auto-Drivers
3- Turn off your phone and connect it to your computer (this will load up the MTK drivers).
4- Remove your phone from computer and make sure its turned off
5- Make sure you have extract "SP Flash Tools" and "recovery.img+scatter.zip"
6- Run SP Flash Tools AS ADMIN
7- Click on "scatter-loading" and select "MT6582_Android_scatter_emmc.txt " from the previously extracted "recovery.img+scatter.zip"
8- Check "RECOVERY" box ONLY, double click on the empty green space on this line and select the file "recoveryCWM__Alcat_POP_S7.img"
9- Click the "Download" button
10- Connect the phone (make sure it was turned off)
You'll see a red line loading and then a yellow line loading. At the end, you will see a green circle saying "OK" !
Congratulation, you have installed the CWM Recovery !
Now, let's root it :
11- Remove the USB cable
12- Turn on you phone by holding VOL+ and POWER button - You will enter the CWM recovery !
13- Select "install zip from SD Card"
14- Select the file "Root_KitKat_4.4.zip" and confirm its installation.
15- Select "reboot to system now"
Your device is now rooted ! Congratulations !
Stock Recovery :
If you want to get the stock recovery back, there you go : http://d-h.st/Fun
About OTA Updates
Alcatel released one more OTA update, you can't flash it directly.
However, here is the .zip (http://d-h.st/Dcc) update 0003 for PopS7, i flashed it with CWM !
It didn't first work because i deoxeded my phone, so i flashed system.img back and it worked.
Warning : This will flash a new recovery, you can flash CWM again using SP Flash Tools.
You can try this EXPERIMENTAL .zip with no recovery flashing (didn't test it) : http://d-h.st/9NSA
They updated some libs (like camera) and some system apps.
Don't forget to thanks my friend @danycmoi

Tuto
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Danycmoi

do you have the stock recovery img too?
awesome cwm. works for alcatel's "clone" (vodafone smart power). installed root right now

when we see a android lollipo costom rom for this phone?

costyprj said:
when we see a android lollipo costom rom for this phone?
Click to expand...
Click to collapse
I doubt it would be anytime soon but I would very much like to see cyanogenmod 11 for this phone.

I don't know about android 5.0 and we don't yet have any custom rom !
I think, there will be problems while porting rom because there are only a few mt6582 phones with LTE support... There's a CM11 build for mt6589 but we are far from getting it in our PopS7.
MTK devices are becoming more customisable with time! This is a good point !
Here is stock recovery : http://d-h.st/Fun

Can't we port it from android l? Same mt6582 chipset.

Links are dead!
@vickdu31 the links are dead, i tried downloading and it says: This account's public links are generating too much traffic and have been temporarily disabled!
The recovery its working on the branded Vodafone same phone? Thanks!

Hi all, i'm uploadig files again.
I didn't try it in the vodafone, If you backed up your recovery, you can give it a try . @Andrei221 says it's working !)
 @Andrei221 , i don't really understand what you mean. Porting android L ? We didn't port any rom to it yet ! You can start working on something if you want but i think our chipset is a bit different than classir MT6582 because it has 4G LTE support !

Backup
Hi @vickdu31 . Thank you for re-uploading the links. I`m trying to backup my stock rom from Vodafone. I created the scatter file with MTK Droid Tools. I want to get boot.img and recovery.img but they are 20 MB the both. When i try to create CWM recovery with MTK Droid Tools, loading the files boot.img and recovery.img in right log it says :
- Boot kernel version =3.4.67
It is created: C:\Users\Bogdan\Downloads\mtkd\MtkDroidTools\recovery\vvff_boot_patched_141130-123050.img
It is created: C:\Users\Bogdan\Downloads\mtkd\MtkDroidTools\recovery\vvff_recovery_141130-123050.img
--- ERROR :Recovery doesn't match by the size
--- task is complete ---
Click to expand...
Click to collapse
I dont know why they are 20 MB. Can you help me with this? Thank you!

The stock recovery images are 20mb indeed.
But just flash the recovery from the topic. I have vodafone and IT works flawlessly

Recovery and boot
I think its working now,
It is created: C:\Users\Bogdan\Downloads\mtkd\MtkDroidTools\recovery\Vodafone-985N_140606__boot_patched_141130-124415.img
--- test recovery OK !
It is created: C:\Users\Bogdan\Downloads\mtkd\MtkDroidTools\recovery\Vodafone-985N_140606__recovery_141130-124415.img
--- task is complete ---
Click to expand...
Click to collapse
They have 5.43 MB boot patched and 6.10 MB recovery image.
---------- Post added at 01:14 PM ---------- Previous post was at 12:47 PM ----------
Now when i try to flash the cwm recovery image it says : pmt changed for the rom it must be downloaded. Do you know why? I dont understand what that means.

I dont know how can i flash the cwm, it keeps this error: pmt has changed, i tried to remove from the scatter the preloader part, but no use. Maybe someone can help! Thank you!

Finally, i have used your scatter file and its working, but when i`m trying to backup the stock rom it says :
- nodl_otp - ERROR : Zero file, no space left on device!
--- We keep folders contents copying on PC
- /data/nvram
- /system
--- task end with ERROR ---
Click to expand...
Click to collapse
What is that error? I had prepare blocks for Flash Tool and its copied everything.

Stock recovery is 20mb but the custom recovery is 6.xx mb this is normal. Partition size is 20mb but you can flash the cwm anyway ! You need a scatter that end with ...emmc.txt

vickdu31 said:
Stock recovery is 20mb but the custom recovery is 6.xx mb this is normal. Partition size is 20mb but you can flash the cwm anyway ! You need a scatter that end with ...emmc.txt
Click to expand...
Click to collapse
Thank you vickdu31! And how can i find or create the scatter with the ending emmc?

Check this link : http://www.china-devices.com/Thread-ROOT-CWM-Readback-your-ROM-with-SP-Flash-Tools?pid=3380
Especially the video.
If you have mtk droid tools, download it again from this page. I think they have different versions.
This will show you how to create your scatter file proprely.

https://translate.googleusercontent...g=ALkJrhiSbucfX_2TazOcol8OTGniQY6Jvg#p1533986
i saw that there is an update for this phone but my ote does not recieve it. can somebody give me the update.zip ?
LE: nevermind, i didn't read the first post. thanks, but i cannot install it. package fingerprint error

Hi, is your phone alcatel or vodafone ?
This OTA update apply only on the alcated.
Try to rename the file update.zip and you can also try the other file and rename it too.
Maybe each phone needs his own update.zip from OTA, i don't know !

Scatter and CWM
vickdu31 said:
Check this link : http://www.china-devices.com/Thread-ROOT-CWM-Readback-your-ROM-with-SP-Flash-Tools?pid=3380
Especially the video.
If you have mtk droid tools, download it again from this page. I think they have different versions.
This will show you how to create your scatter file proprely.
Click to expand...
Click to collapse
Hi! I have done exactly as in the video, the same method with mtk droid tools, i had installed pdanet drivers, read blocks and created the scatter file, i`ve made the cwm, but when i try to download with sp flash tools it says:
Code:
pmt changed for the rom it must be downloaded
I dont know where i`m getting wrong!

LG G4 F500 unbrick,No Display After Flashing,change ROM Guide..

Hello,
I recently post a thread regarding my lg g4 f500l has no display after flashing Europe rom and find no reply. But i manage to grab some info and help from different forms and combine them to revive my lg g4 which has no display, no download mode just blank screen i tried putting it in freezer and disabling big cores but no avail and unable to flash back to f500l through LGUP and lgflash tool 2014 because invalid kdz file.
NOTE:- MY LG G4 WAS WRITTEN AS H815 ON THE BACK STICKER THAT'S WHY IT HAPPEN TO ME
Flash Guide https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
So here what i did i found a thread flashing different kdzs by changing their name in hex editor so what i did i open F500l F500L20C_00.kdz with HxD hex editor which is free and press ctrl+r to search and replace F500L with H818N all the entries and save the file at desktop. And people who has no download mode remove your phone battery and attach a usb cable with pc your phone will show no battery icon so press vol up button and insert the battery at the same time lg logo will flash and you will go into download mode. it may take few tries though. now open LGUP and flash your modified kdz it will flash without any error... So your phone will boot up and will have display so you can setup your phone.
Ok as now you have working phone but still want to remove this Korean crap like me without having black screen i have simple method as you can flash any kdz even a dual sim one in single sim like me because for Indian network bands. Just download any kdz you want to flash from here http://storagecow.eu/index.php?dir=Xda/LG+G4/ for marshmallow i am not sure but it will also flash. After download open the kdz in WindowsLGFirmwareExtract-1.2.6. link in description now open up firmwareextract and select kdz and just extract only .dz file after completion select dz file option and select the extracted dz file click on file name so all file will be selected now click extract DZ you will have so Manny bin files. After extraction select Merge System.bin option so it will merge all bin files in one System.img file in merge_output folder of firmware extractor. So now you have the system file copy it in you lg g4 internal memory.
Now extract LG_Root.zip and and in extracted folder hold shift and right click and select open command window here. now open ports.bat file and see the port no of lg g4 the diaz1 one or you can see in LGUP tool either way note it down and close the ports windows now restart your phone in download mode by holding power up while connecting it to pc. Now in the command windows in pc type
Send_Command.exe \\.\COM12
COM12 is the port no you will get in ports.bat file make your you chose yours not this one.
now type id and press enter you will get some values if not disconnect and reconnect after that type
dd if=/data/media/0/system.img bs=8192 seek=65536 count=548352 of=/dev/block/mmcblk0
wait for some time till it come back on # and type LEAVE in caps your phone will reboot and you have new rom you will may get some error after booting just click ok or for avoiding them just hard reset your phone before booting just after type leave remove your battery and pu it back and press vol down + Power button when lg logo flash quickly release both and press vol up+vol down together you will be in reset menu just factory reset this process is for F500l only other model have different method or you can hard reset in setting after booting it you choice. So now you have a working g4 in any version kdz and you can also flashed rooted rom images found on XDA. So i hope you will find it useful. And our f500 bootloader is locked so cant flash twrp if anyone know different please tell me and how to flash custom rom on F500l it would be very nice of you.
Pre rooted bloatware free image https://forum.xda-developers.com/g4/development/rom-rootedpure-image-g4-korean-f500-t3321855
And this is my 1st post of any solution and sorry for bad English

vjj
gggggggggggggggggggggggggggggggggggggggggggggggggggggggg

thnx aloooot both of u u alive my phone again.... May GOD bless u always...

Does that work for it? https://forum.xda-developers.com/g4/help/lg-g4-screen-brick-t3563623

99sago99 said:
Does that work for it? https://forum.xda-developers.com/g4/help/lg-g4-screen-brick-t3563623
Click to expand...
Click to collapse
yes man it will work the same happens with me.

geminithebest2222 said:
thnx aloooot both of u u alive my phone again.... May GOD bless u always...
Click to expand...
Click to collapse
Thanks dear glad i could help.. I also suffer 2 week from this problem.

luckysingh111 said:
yes man it will work the same happens with me.
Click to expand...
Click to collapse
But I want to turn my phone into h815. I need your help.

99sago99 said:
But I want to turn my phone into h815. I need your help.
Click to expand...
Click to collapse
Yes i also convert mine into 815 just read the solution above i describe everything step by step. You just need to use the image push method and you can convert to any rom just read the full solution.

bro i need your help, i cant flash the modified kdz file through lg up it says invalid kdz
update:
i manage to extract dz file kdz file downloaded by lg bridge, i did rename some on hex editor then i flash it on lg up now my phone is now working, my worries are the korean apps and others how can i suppose to do that im afraid of converting it again

I've a same you!, cause buy G4 from China Refurbished Phone?
Back cover was H811 T-Mobile with android 5.1 (81110n software). and i want upgrade to MM, i'll flash h81120i.kdz and BOOM! Bricked no recovery no D/L Mode
After that I disassembly my phone is was F500L on motherboard
Question:
1. how u do entering download mode after bricked?
2. Your phone is "WAS WRITTEN AS H815" why you replace "F500L" with "H818N" on Hex Editor?
3. Now I replace F500L with H811 on hex editior and error KDZ is invalid. what is the problem?

ehl.ey14 said:
bro i need your help, i cant flash the modified kdz file through lg up it says invalid kdz
update:
i manage to extract dz file kdz file downloaded by lg bridge, i did rename some on hex editor then i flash it on lg up now my phone is now working, my worries are the korean apps and others how can i suppose to do that im afraid of converting it again
Click to expand...
Click to collapse
How to use hex editor?

Thanks Lucky, I lost all hopes in saving my phone
But your guide saved my LG g4.

Thank You + Additional Info
Hello All,
If you are here then you have flashed some incorrect version of KDZ file on device after that you aren't getting any display or other issues. Here is what i did.
1. Put your cell in recovery mode as mentioned in the above post (Remove batter -> Plugin the cable -> Hold "UP Vol Key" and Insert the battery -> hold the key until you are in recovery mode)
2. Extract the KDZ ( The correct KDZ for your device) and there will be DZ file there
3. Use this file with LGUP (LG update tool) in the bin file click on the dots to select the DZ file you extracted above and flash it
Hope it heldped

Stack at 38% when flashing
Hi everyone, I have bought a lg g4 from online. It was android 5.1 and i wanted to upgrade to android 6.0
My device back was written h815, so that i have flashed a h815 firmware. But my device also come to black screen after flash. Than i find this post from google. By following this post i can successfully flashes my device with F500L30b_00_0626.kdz firmware. But there was a lot of problem with that rom. So i wanted to flash a marshmallow rom.
When i was flashing a marshmallow rom it stacked at 37% and showed Error: Error code = 0x2000, Invalid command response. After that again i tried F500L30b_00_0626.kdz firmware, But it also stack at 38%, than i tried many f500l and also h815 firmware. But all of them stacked at 41 or 38%.
Anyone please help me what should i do. Now i am helpless
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

First the download mode was working as you said,than i flashed the wrong kdz and didnt boot at all,not just display,nothing.And even if i remove battery than try to go to download mode as you said it doesnt work but it worked before,i may the only one who is facing that problem but if anyone knows what could be causing this,please tell me,I am in the dark here

gr523 said:
First the download mode was working as you said,than i flashed the wrong kdz and didnt boot at all,not just display,nothing.And even if i remove battery than try to go to download mode as you said it doesnt work but it worked before,i may the only one who is facing that problem but if anyone knows what could be causing this,please tell me,I am in the dark here
Click to expand...
Click to collapse
Try to flash with lg bridge, mine have solved with lg bridge

Masud675 said:
Try to flash with lg bridge, mine have solved with lg bridge
Click to expand...
Click to collapse
LG Bridge works with phone totally powered off?

Yes, if your phone recognized by pc with data cable

Masud675 said:
Yes, if your phone recognized by pc with data cable
Click to expand...
Click to collapse
I tried LG Bridge right after you suggested that but no luck,are you sure that LG Bridge recognizes you LG G4 when powered off?Could you please check it,or is there any way to flash the g4 without download mode ,like the mediatek devices that allow us to flash with sp flash tool with phone powered off,if there is something that can flash g4 without download mode than this is my only chance.

SAME WITH ME
it was written H815 on box and I flashed H815 Nougat on my device.
Turns out it was F500L
I'm also stuck at download mode.

How To Guide Flashing ColorOs 12 on Oppo reno6 5G CPH2251

Hey Guys,
Many users downgraded their ColorOs12 to ColorOs11.3 on oppo reno6 5G device due to many bugs on it, they want to install ColorOs12 but they are not getting OTA update, they are wandering how can they install ColorOs 12 back on their phone, So, here I have come up with a method to directly flash ColorOS12.
Note: Data will(or might) be erased in this method so please take backup of you data on phone.
This has been tested on Indian version, I am not sure if it will work for other countries.
I strongly recommend to take full firmware backup using method below before proceeding
Backup full firmware(ROM) of any MediaTek device using MTK client| Oppo reno6 5G | MT6877
Hello Guys, Many times we encounter a situation where we need to do some software update, flash custom ROM, install stock ROM etc, so it is advisable to take full firmware/ROM backup of your device. If required then you can flash this backup to...
forum.xda-developers.com
Step1: Pre-requisite -Installing required drivers and setup
From link below download drivers and setup.
Install mediatek driver.
Install python (during installation of python please select "install for all user" from customization and tick add path to system variable)
install usbdk.
download extarct Mtk client tool.
go to folder where you extract mtk client
View attachment 5541629
open cmd here and run below command
cd mtkclient
pip3 install -r requirements.txt
In default setting it takes 2 hour to flash but after change it takes 13 min. If you want to increase flashing speed then open mtk_daxflash.py file from library folder, search "dsize = min(length, 0x200)" and replace it with "dsize = min(length, 0x2004)" , save and close the file.
You need to close command prompt in order to take effect of change.
Reference(https://github.com/bkerler/mtkclient/issues/271)
New Qcom Mtk Driver V3.0.5.1.rar | by TUSER HP for Generic Device/Other
Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.
androidfilehost.com
Download Python
The official home of the Python Programming Language
www.python.org
GitHub - bkerler/mtkclient: MTK reverse engineering and flash tool
MTK reverse engineering and flash tool. Contribute to bkerler/mtkclient development by creating an account on GitHub.
github.com
Releases · daynix/UsbDk
Usb Drivers Development Kit for Windows. Contribute to daynix/UsbDk development by creating an account on GitHub.
github.com
Step2: Download and extract the ColorOs 12 firmware
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
CPH2251_11_C.27_ColorOS12_Android12_Latest.rar
drive.google.com
Step3: Flash the firmware
on cmd type below command to flash the firmware
python mtk wl "ROM location full path"
it will wait for devices.. Power off the phone, wait 10 sec then press vol up + vol down together and then plug the usb cable.
Once device detected , it will display devices information and start flashing
View attachment 5541639
View attachment 5541641
View attachment 5541645
While flashing it will dump the preloader, this file is very important so, please keep this file safely. this file may require in future.
View attachment 5541661
Step4: Boot the phone
Once flashing completed, press vol up + power button together for 30 sec. Wait for device to boot.
Step5: Flashing the preloader.bin (only if required)
In case, even after flashing completed successfully but some time device does not boot, only black screen, no charging sign either then don't panic, device has entered into emergency download mode, if you face the same then it's time to flash preloader.bin file. Follow below steps
1) download SP flash tool specific version v5.2148. (https://androidmtk.com/smart-phone-flash-tool)
2) download attached preloader.bin, scatter file and auth file from link below and place all these files at same folder.
MT6877_flashing_preloader.zip
drive.google.com
3) open sp flash tool, select download agent files from mtk folder as shown on image and load scater file and auth files respectively.
View attachment 5581171
4) In cmd run command "python mtk payload". Now press and hold vol+ vol- or all the buttons together, it should show payload sent successfully.
5) Now in sp flash tool click on Download button, it should flash the preloader successfully.
6) once preloader is flash successfully you can turn on the phone by pressing vol+ and power button together for 20 sec. If attached preloader does't flash then you can try flashing your device backup preloader.bin created/shown on step3.
so by this way we directly flashed ColorOS 12 on oppo reno6 5G.
Tips: If due to some reason flashing did not completed successfully then please press vol up and power button together for 30-40 sec to boot the phone (exit the brom mode).
Disclaimer: I have tested this method on my phone, it's 100% working but I will not responsible if damage any damage happens to your device while doing this. So do it at your own risk.

thanx nand for helping me in upgrading to coloros 12 again,this process worked successfully.

Thanks for the info.
My question is: can I use this method to remove phone branding using stock firmware image you pointed in your post?

macslui said:
Thanks for the info.
My question is: can I use this method to remove phone branding using stock firmware image you pointed in your post?
Click to expand...
Click to collapse
Hi, i didn't understand your question. Can you explain more.

Nand kumar said:
Hi, i didn't understand your question. Can you explain more.
Click to expand...
Click to collapse
Sorry. Try to better explain: I have a Vodafone branded reno 6 that accept any sim card. I only want to remove Vodafone branding (boot logo and custom app that are present only in branded phone).

Yes, you can try. I recommend you to take full firmware backup before doing this as explained in guide.

bonjour a tous quand j'écrit pip3 install -r requirements.txt j'ai une erreur :
ERROR: could not open requirements file :[Errno2] no such file or directory: requirements.txt
merci de m'aider

Please run this command from mtk folder

Nand kumar said:
Yes, you can try. I recommend you to take full firmware backup before doing this as explained in guide.
Click to expand...
Click to collapse
Hi Nand, I've done everything as you pointedout in this document and backup document.
Unfortunately I was able to flash the phone with success but now it do not turn it on anymore.
I've tried to every button combination but it remain off.
I also cannot enter brom mode anymore.
Have you some suggestion?
Thanks!

macslui said:
Hi Nand, I've done everything as you pointedout in this document and backup document.
Unfortunately I was able to flash the phone with success but now it do not turn it on anymore.
I've tried to every button combination but it remain off.
I also cannot enter brom mode anymore.
Have you some suggestion?
Thanks!
Click to expand...
Click to collapse
I was able to reenter brom mode. Now I'm reflashing again.

Hi all, everything ok now. I've flashed COS12 and now my phone is non more brand (vodafone) related.

Nand kumar said:
Please run this command from mtk folder
Click to expand...
Click to collapse
ok merci je ne savais pas comment ouvrir cmd a partir d'un fichier fonctionne très bien merci

macslui said:
Hi all, everything ok now. I've flashed COS12 and now my phone is non more brand (vodafone) related.
Click to expand...
Click to collapse
macslui said:
Glade to hear that you removed brand using thus method.
Click to expand...
Click to collapse

Unfortunatly COS12 in my opinion Is very laggy. I'm trying tio rollback to COS11 but, after flashing using your guide, the phone do not boot anymore. So I have to go back to 12. It's only my experience on COS12?

Hi, for many peoples, Color os12 was not laggy but have some bugs like battery draining etc.
For your device is not booting on color 11 then you have to flash preloader using Sp flash tool version v5.2148

Thanks Nand, allways ready to answer, thanks! Can please explain how to flash preloader with SP flash tool please? I have preloader from backup. Thanks again for your support.

Removed ...

macslui said:
Thanks Nand, allways ready to answer, thanks! Can please explain how to flash preloader with SP flash tool please? I have preloader from backup. Thanks again for your support.
Click to expand...
Click to collapse
Removed my contact details as I was getting to many message/calls on phone.

macslui said:
Hi Nand, I've done everything as you pointedout in this document and backup document.
Unfortunately I was able to flash the phone with success but now it do not turn it on anymore.
I've tried to every button combination but it remain off.
I also cannot enter brom mode anymore.
Have you some suggestion?
Thanks!
Click to expand...
Click to collapse
Same happen with me.. My phone is not bootibg up , no logo, no charging logo, not even single sign for alive please help me out help help

Cosmicsh said:
Same happen with me.. My phone is not bootibg up , no logo, no charging logo, not even single sign for alive please help me out help help
Click to expand...
Click to collapse
Removed my contact details as I was getting to many message/calls on phone.