LG G4 F500 unbrick,No Display After Flashing,change ROM Guide.. - G4 Q&A, Help & Troubleshooting

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
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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.

Related

[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).
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"lightbox_share": "Share",
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"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...

i have lg g3 d850 at&t i have big Troubleshooting

i have lg d850 at&t i installed cwm and i installed V1.2 in recovery for lg g2 just i try it
know i wanna restore original firmware lg g3 d850 at&t but i i try it lg flash tools
and but dll file and tot file and i set com 41 is not working
and mtp always failed
and i try lg support tools icant do any thing
massage in 0 sec in flash tools
(imei:
model:d802
dll:d850
device model is different
factory model check error)
help help my i wanna resit my model to d850 or any help
and my device tern on go direct to firmware update i can not do any thing
please help my my brother
anasmilan said:
i have lg d850 at&t i installed cwm and i installed V1.2 in recovery for lg g2 just i try it
know i wanna restore original firmware lg g3 d850 at&t but i i try it lg flash tools
and but dll file and tot file and i set com 41 is not working
and mtp always failed
and i try lg support tools icant do any thing
massage in 0 sec in flash tools
(imei:
model:d802
dll:d850
device model is different
factory model check error)
help help my i wanna resit my model to d850 or any help
and my device tern on go direct to firmware update i can not do any thing
please help my my brother
Click to expand...
Click to collapse
to restore your phone follow my steps exactly
1) pull out the battery and press and hold volume+ while connecting charger
2) release buttons when phone says download mode.
3)download your firmware via this site, replace imei of my url with your imei number (see box)
4)download this tool and navigate to your file with the "find kdz option"(do not change the other fields)
5) press normal download
6) press start chose your country and language
7) ignore the could not connect to server error
8) if that didn’t work try it over from step 5 but now with cse flash instead of normal flash
9) do not disconnect until you boot completely up for the second time
10) thank me for my post
suljo94 said:
to restore your phone follow my steps exactly
1) pull out the battery and press and hold volume+ while connecting charger
2) release buttons when phone says download mode.
3)download your firmware via this site, replace imei of my url with your imei number (see box)
4)download this tool and navigate to your file with the "find kdz option"(do not change the other fields)
5) press normal download
6) press start chose your country and language
7) ignore the could not connect to server error
8) if that didn’t work try it over from step 5 but now with cse flash instead of normal flash
9) do not disconnect until you boot completely up for the second time
10) thank me for my post
Click to expand...
Click to collapse
1-my go direct to firmware update if battery out i can not doing any thing
see bpx i am understanding you
imei:
whare i can find kdz file option
please tell me step by step
thanx
anasmilan said:
1-my go direct to firmware update if battery out i can not doing any thing
see bpx i am understanding you
imei: 014065-00-021097-8
whare i can find kdz file option
please tell me step by stepp
thanx
Click to expand...
Click to collapse
delete the emei now when you pull out the battery put it back in then press and hold.....
i do
suljo94 said:
delete the emei now when you pull out the battery put it back in then press and hold.....
Click to expand...
Click to collapse
ido that
then i can not find kdz file
you can help me
Why are people trying to flash custom recoveries on AT&T phones....I don't get it. He did give you step by step instructions...I don't think there is more he can do for you.
hi gays 55
i paste the imei but i do not have firmware or any thing see the pic if i but imei number see the pic
see pic
when i put imei in box
suljo94 said:
to restore your phone follow my steps exactly
1) pull out the battery and press and hold volume+ while connecting charger
2) release buttons when phone says download mode.
3)download your firmware via this site, replace imei of my url with your imei number (see box)
4)download this tool and navigate to your file with the "find kdz option"(do not change the other fields)
5) press normal download
6) press start chose your country and language
7) ignore the could not connect to server error
8) if that didn’t work try it over from step 5 but now with cse flash instead of normal flash
9) do not disconnect until you boot completely up for the second time
10) thank me for my post
Click to expand...
Click to collapse
Step 1 DOES NOT WORK! At what point do you replace the battery???
After putting in the imei number on the Web page all I get is some xml information but no link to download file. Please advise on file download.
sisqo_kid said:
After putting in the imei number on the Web page all I get is some xml information but no link to download file. Please advise on file download.
Click to expand...
Click to collapse
You can use this tot file to get your phone back to stock KK:
http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/AT&T+D850/
OK thank you for the file. However call me a n00b, but the file I downloaded was a tot file and the instructions say I should have a kdz file. Should I rename the file to kdz? The tool is looking for a kdz file.
sisqo_kid said:
OK thank you for the file. However call me a n00b, but the file I downloaded was a tot file and the instructions say I should have a kdz file. Should I rename the file to kdz? The tool is looking for a kdz file.
Click to expand...
Click to collapse
Go here and read the second portion of the opening post:
http://forum.xda-developers.com/showthread.php?t=2785089
suljo94 said:
to restore your phone follow my steps exactly
1) pull out the battery and press and hold volume+ while connecting charger
2) release buttons when phone says download mode.
3)download your firmware via this site, replace imei of my url with your imei number (see box)
4)download this tool and navigate to your file with the "find kdz option"(do not change the other fields)
5) press normal download
6) press start chose your country and language
7) ignore the could not connect to server error
8) if that didn’t work try it over from step 5 but now with cse flash instead of normal flash
9) do not disconnect until you boot completely up for the second time
10) thank me for my post
Click to expand...
Click to collapse
man I followed all the steps but when it get to extracting software the screen get freezed. Then I press exit and did it again but it does´t work for me.
I have a fix for this.
anasmilan said:
i have lg d850 at&t i installed cwm and i installed V1.2 in recovery for lg g2 just i try it
know i wanna restore original firmware lg g3 d850 at&t but i i try it lg flash tools
and but dll file and tot file and i set com 41 is not working
and mtp always failed
and i try lg support tools icant do any thing
massage in 0 sec in flash tools
(imei:
model:d802
dll:d850
device model is different
factory model check error)
help help my i wanna resit my model to d850 or any help
and my device tern on go direct to firmware update i can not do any thing
please help my my brother
Click to expand...
Click to collapse
So I had the same issue with my phone. I made a nandroid backup of my lollipop 5.0.1 and installed a MM rom. when I did it didn't work so I re formatted the phone and restored my back up, and I had no imei number, the phone said no service and I had an x at the signal bar. I tried everything, and couldn't get it to work, so after reading different topics, and random side topics, I found a soulution. after I re installed the lollipop version, I found the right modem.zip file for my phone. I used this one http://forum.xda-developers.com/att-lg-g3/development/rom-lg-d850-20f-lollipop-5-0-1-extras-t3052041. download the modem.zip and put it on your sd card. re boot to recovery and flash the zip with TWRP. Than bam, you have your imei and signal back. Hope this helps.

[FIX]LG Flash Tool Stuck At 2%

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%.
It' work for you. I so happy if it can help you.
somboons said:
It' work for you. I so happy if it can help you.
Click to expand...
Click to collapse
It did indeed help me .
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:
have a look my solution :
http://forum.xda-developers.com/lg-...14-2-error-t3021533/post58650373#post58650373
condudad said:
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:
Click to expand...
Click to collapse
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 .
hsahin4 said:
have a look my solution :
http://forum.xda-developers.com/lg-...14-2-error-t3021533/post58650373#post58650373
Click to expand...
Click to collapse
Yeah it's known that changing your ROM can sometimes change the integrity of your partitions. Thanks for sharing your solution.
d00lz said:
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.
Click to expand...
Click to collapse
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.
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
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.
Vybramo said:
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.
Click to expand...
Click to collapse
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.
The miracle think its i have this error, thats why i post there my solution which work for me.
d00lz said:
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%.
Click to expand...
Click to collapse
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?
hello how eaxctly to use with adb to start the bat file?
hsahin4 said:
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?
Click to expand...
Click to collapse
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,
{
"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"
}
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.
hyundai2010 said:
hello how eaxctly to use with adb to start the bat file?
Click to expand...
Click to collapse
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).
thanks working awesome
Great! You're the man.. I've tried 5 hours without success till i found your fix *thumbsup*
Hows do I check for the errors on my flashtool?
ClarkOwen said:
Hows do I check for the errors on my flashtool?
Click to expand...
Click to collapse
Do you know how to navigate through your file system?
Your log file is located at C:\LGMobileUpgrade\ like I said in OP.
do I have to install trwp to be able to rom install? is this method not working for original recovery?
benveq said:
do I have to install trwp to be able to rom install?
Click to expand...
Click to collapse
Yes.
benveq said:
is this method not working for original recovery?
Click to expand...
Click to collapse
Original Recovery does not let you use ADB and has little to no features.

[REQ] Need help. Unbrick phones with locked bootloader, oem unlock disabled

I have made some success with the help of @gee one providing me the necessary files needed for making tot file for both H790 and H791 32GB varaint Nexus 5X.
It was tested on @JaCh0o's bricked H791 32GB Nexus 5X
I am still waiting for somebody with a 16GB Nexus 5X to make me a dump of the Primary GPT (first 512 kb of the emmc) and the Backup GPT (last 512 kb of the emmc) to make tot file for the 16GB Nexus 5X too.
If sombody is in this situation please follow the guide.
Download TOT file for your device
Download LG usb drivers
Download LGUP tool
Download 8994 dll for LGUP
Install LG usb drivers
Install LGUP tool
Install 8994 dll for LGUP
Turn off your phone
Press and hold the volume_up key while you connect the phone to the PC with usb cable.
Wait for Windows to install the new drivers
Start LGUP
{
"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"
}
Either select refurbish (will wipe userdata) or upgrade (wont wipe userdata)
Click on the line where it says BIN file to make the button with "..." appear and click on it then select the tot file.
Click on start
This here is not important
I have a solution in my head for those who have locked their bootloader and disabled oem unlocking with a modified system and now they are stucked in bricked condition with their phones
To make this idea to a real solution I need some help from you guys as I dont have nexus 5x. My idea is enter to LG's download and flash a tot file for nexus 5x using lg flashtool. Since there are no leaked tot files for nexus 5x yet, so I will do one. I have dll file which will probably work for nexus 5x (90%).
First of all before I jump in head first to making a tot file, please let me know are you able to boot your nexus 5x to LG's download.
According to my sources to enter download mode you have to turn off your phone then plug the usb cable to the phone wile you keep pressing the volume_up key. If this key combination gets you into LG's download then it is great. To exit from LG's download just keep pressing the power key and the phone will shutdown. If it does not work then it is still possible to enter download mode but with using LG's 910kOhm usb cable.
The next things I need are dump files of Primary_GPT (first 512 kb of the emmc), misc partition (to see LG's version numbering for nexus 5X, it is important for tot files), laf partition and Backup_GPT (last 512 kb of the emmc). For GPTs I will need both the 32 gb and the 16 gb variants of the phone.
Download mode does work with volume up. I'm not sure about the USB cable, but I did get into download mode several times while trying to "fix" my phone.
Think I have the other files for the 32gb variant as well, but I'm traveling right now.
Boots into download mode. Shows up in Device Manager as USB serial on COM3.
Witek_M said:
Boots into download mode. Shows up in Device Manager as USB serial on COM3.
Click to expand...
Click to collapse
So the key combination have worked?
Do you see something like this on your screen?
bitdomo said:
So the key combination have worked?
Do you see something like this on your screen?
Click to expand...
Click to collapse
Volume up while plugging USB cable worked. Yes, that is what I see on the screen.
Witek_M said:
Volume up while plugging USB cable worked. Yes, that is what I see on the screen.
Click to expand...
Click to collapse
Great! We are one step ahead. Thanks.
bitdomo said:
Great! We are one step ahead. Thanks.
Click to expand...
Click to collapse
Also can confirm that phone is loading Download Mode.
I have locked oem after turning on OEM control in Developer Mode, then wiped by TWRP whole availible partitions and flashed stock recovery on it. Now got "clean" phone with no way to get working.
Here's my thread about that issue:
http://forum.xda-developers.com/nexus-5x/help/how-to-enable-oem-unlocking-bricked-t3249003/page2
What aprox time we gonna wait for stock tot files ?? I'm thinking about shipping phone to LG Service (would prefer to do it by myself) It's not my phone and the preson is pressing on me about that. Will your tot files makes phone tamper flag on? Is it possible to set in off back again ?
JaCh0o said:
Also can confirm that phone is loading Download Mode.
I have locked oem after turning on OEM control in Developer Mode, then wiped by TWRP whole availible partitions and flashed stock recovery on it. Now got "clean" phone with no way to get working.
Here's my thread about that issue:
http://forum.xda-developers.com/nexus-5x/help/how-to-enable-oem-unlocking-bricked-t3249003/page2
What aprox time we gonna wait for stock tot files ?? I'm thinking about shipping phone to LG Service (would prefer to do it by myself) It's not my phone and the preson is pressing on me about that. Will your tot files makes phone tamper flag on? Is it possible to set in off back again ?
Click to expand...
Click to collapse
I am done with the tot file for the 32gb variant, thanks to @gee one
I am still waiting for the 16 gb variant's primary gpt and backup gpt dump.
If you have the 32 gb variant we can give a try.
Lg flashtool never sets tamper flag on. For nexus 5 it locks the bootloader and resets the tamper flag.
bitdomo said:
I am done with the tot file for the 32gb variant, thanks to @gee one
I am still waiting for the 16 gb variant's primary gpt and backup gpt dump.
If you have the 32 gb variant we can give a try.
Lg flashtool never sets tamper flag on. For nexus 5 it locks the bootloader and resets the tamper flag.
Click to expand...
Click to collapse
Yes, I got 32gb version. Can I ask you for short instructions how to flash it properly and links to 32gb version files?
Wysłane z mojego Oppo Find 7 przy użyciu Taptalka
JaCh0o said:
Yes, I got 32gb version. Can I ask you for short instructions how to flash it properly and links to 32gb version files?
Wysłane z mojego Oppo Find 7 przy użyciu Taptalka
Click to expand...
Click to collapse
Download usb drivers
Download LG flashtool
Download dll file
Download H790 or H791 tot file for 32GB variant
Follow the steps in this video. I made this video for nexus 5, but everything is the same for nexus 5x too. Just use the the tot and the dll file I linked.
If you have the H791 variant can you check the device factory version? If you flashed the tot successfully you should see a LOG folder in the same directory as the dll file. You will find a .txt file in the LOG directory. Search for device factory version and paste it here. It is something like this: LGH790AT-00-V10f-NXS-XXX-OCT-03-2015-32G-MDA89E-US
bitdomo said:
Download usb drivers
Download LG flashtool
Download dll file
Download H790 or H791 tot file for 32GB variant
Follow the steps in this video. I made this video for nexus 5, but everything is the same for nexus 5x too. Just use the the tot and the dll file I linked.
If you have the H791 variant can you check the device factory version? If you flashed the tot successfully you should see a LOG folder in the same directory as the dll file. You will find a .txt file in the LOG directory. Search for device factory version and paste it here. It is something like this: LGH790AT-00-V10f-NXS-XXX-OCT-03-2015-32G-MDA89E-US
Click to expand...
Click to collapse
As I can see this example is for US. Im from Poland (Central Europe). There will be no problem with radio/modem brandwitdth ? Is this for every H791 32GB Nexus 5x ? This dll file looks to be for LG G4, is it ok ?
JaCh0o said:
As I can see this example is for US. Im from Poland (Central Europe). There will be no problem with radio/modem brandwitdth ? Is this for every H791 32GB Nexus 5x ? This dll file looks to be for LG G4, is it ok ?
Click to expand...
Click to collapse
Same modem is used for both nexus 5x, and for the dll it should not be a problem. LG Optimus G dll can be used for all LG optimus G and nexus 4, LG G2 dll can be used for all LG G2, G3 and nexus 5. And I think that "US" at the end of file name is a short form of USER and not united states, but I cannot tell for sure until you post the device factory version of a H971.
Edit: The only differance between the two tot file is the model string and tot version string.
For H790 the model string is LGH790 and the tot version string is LGH790AT-00-V10f-NXS-XXX-OCT-03-2015-32G-MDA89E-US
For H791 the model string is LGH791 and the tot version string is LGH791AT-00-V10f-NXS-XXX-OCT-03-2015-32G-MDA89E-US
These two strings makes no differnace it could be anything, but sadly lg flashtool will throw an error like model mismatch H790 => H791 if you try to flash a H791 tot file to a H790, so this is the only reasone why we need seperate tot files. And also the most recently flashed tot file's version number will be written to the misc partition so that is why I ask for the device factory version to dont screw up the versioning. But all these has no effect on the phone's behaviour.
bitdomo said:
Same modem is used for both nexus 5x, and for the dll it should not be a problem. LG Optimus G dll can be used for all LG optimus G and nexus 4, LG G2 dll can be used for all LG G2, G3 and nexus 5. And I think that "US" at the end of file name is a short form of USER and not united states, but I cannot tell for sure until you post the device factory version of a H971.
Click to expand...
Click to collapse
Here's log. FAILED DoDownload Error! After 16 sec and 9%
This phone is after cleaning with TWRP Wipe All. It is Nexus 5X H791 32GB Euro (with last soft MRB08L).
By Device Factory Version you mean H791 or H790 yes ?? If so this is H791 for sure.
The question about radio and my concern about it is made by some notes:
https://productforums.google.com/forum/#!topic/nexus/ku-FFtRjf-o
https://www.reddit.com/r/Nexus5/comments/28d3vt/european_nexus_5_in_the_usa_will_4g_work/
Any solution to flash successfully ?
JaCh0o said:
Here's log. FAILED DoDownload Error! After 16 sec and 9%
This phone is after cleaning with TWRP Wipe All. It is Nexus 5X H791 32GB Euro (with last soft MRB08L).
By Device Factory Version you mean H791 or H790 yes ?? If so this is H791 for sure.
The question about radio and my concern about it is made by some notes:
https://productforums.google.com/forum/#!topic/nexus/ku-FFtRjf-o
https://www.reddit.com/r/Nexus5/comments/28d3vt/european_nexus_5_in_the_usa_will_4g_work/
Any solution to flash successfully ?
Click to expand...
Click to collapse
Thanks for the feedback. The error is this
[01:01:531] Invalid Tot File : Invalid Partition Size(57973760)
Click to expand...
Click to collapse
Probably it is because of the 3gb system.img I try to flash is too big. Lg usually flash the system.img by braking it up to 10-15 pieces and flash these pieces after eachother. I will make a tot which flashes the system.img that way.
Do you still have twrp on your phone? If so can you still boot into twrp?
bitdomo said:
Thanks for the feedback. The error is this
Probably it is because of the 3gb system.img I try to flash is too big. Lg usually flash the system.img by braking it up to 10-15 pieces and flash these pieces after eachother. I will make a tot which flashes the system.img that way.
Do you still have twrp on your phone? If so can you still boot into twrp?
Click to expand...
Click to collapse
Thank you very much for soo much help...
I discovered this too while trying to flash newer system. Its impossible to flash-all by fastboot (zip concering all the main images with system 3gb) becuose of that. It goes successful only while manual flash every partition alone (while fastboot flash system system.img it sparse file into ~512MB parts).
No TWRP, got stock recovery. I thought i have failed and have to send it to LG Service Center, therefore i flashed original recovery (to make it as stock as possible).
Eagerly waiting for new tot file...
PS. I've found out that MBR08L and MBR08M have same release date (1. November 2015), I've tried to flash M version and on welcome screen phone asked me to choose gmt settings (where i didn't found nor Poland or Central Europe), while in L version it doesn't asks and put this settings properly by default. Is it possible that L i for poor countries and M is for States and wealthy ones ??
JaCh0o said:
Thank you very much for soo much help...
I discovered this too while trying to flash newer system. Its impossible to flash-all by fastboot (zip concering all the main images with system 3gb) becuose of that. It goes successful only while manual flash every partition alone (while fastboot flash system system.img it sparse file into ~512MB parts).
No TWRP, got stock recovery. I thought i have failed and have to send it to LG Service Center, therefore i flashed original recovery (to make it as stock as possible).
Eagerly waiting for new tot file...
PS. I've found out that MBR08L and MBR08M have same release date (1. November 2015), I've tried to flash M version and on welcome screen phone asked me to choose gmt settings (where i didn't found nor Poland or Central Europe), while in L version it doesn't asks and put this settings properly by default. Is it possible that L i for poor countries and M is for States and wealthy ones ??
Click to expand...
Click to collapse
Try now https://mega.nz/#!c4AmlCTT!LS1urRD8PRpK6y9kygbvonyi95zNWFHHe7PBNzzJLak
That M and L thing is just nonsense. If it were that the case then google would have done 2 seperate download sections for the two variants of nexus 5x on it's stock rom download page.
bitdomo said:
Try now https://mega.nz/#!c4AmlCTT!LS1urRD8PRpK6y9kygbvonyi95zNWFHHe7PBNzzJLak
That M and L thing is just nonsense. If it were that the case then google would have done 2 seperate download sections for the two variants of nexus 5x on it's stock rom download page.
Click to expand...
Click to collapse
Still error on 17 sec. Log attached. After successful restoring of nexus soft can i flash immediatly (by fastboot) m version of soft?
JaCh0o said:
Still error on 17 sec. Log attached. After successful restoring of nexus soft can i flash immediatly (by fastboot) m version of soft?
Click to expand...
Click to collapse
Ah I was wrong. The problem is the size of the modem.img (57973760 bytes) and not the system.img. I still have to figure it out what is wrong with the size.
If you manage to flash the tot file you can flash whatever rom you want with fastboot after you enable oem unlocking and unlock bootloader.
bitdomo said:
Ah I was wrong. The problem is the size of the modem.img (57973760 bytes) and not the system.img. I still have to figure it out what is wrong with the size.
If you manage to flash the tot file you can flash whatever rom you want with fastboot after you enable oem unlocking and unlock bootloader.
Click to expand...
Click to collapse
Ok. I'm waiting for next tots for check.
bitdomo said:
Ah I was wrong. The problem is the size of the modem.img (57973760 bytes) and not the system.img. I still have to figure it out what is wrong with the size.
If you manage to flash the tot file you can flash whatever rom you want with fastboot after you enable oem unlocking and unlock bootloader.
Click to expand...
Click to collapse
modem partition sizes in bytes. I think modemstN are the EFS partitions.
Code:
90177536 modem
1572864 modemst1
1572864 modemst2

firmware update do not....lg g4 h815

I will be simple, after installing this room
https://forum.xda-developers.com/g4/development/h815-nougat-stock-t3659860
, I had a problem, ie I had more access to the recovery mode, then I wanted to install marshmallow but the phone remains blocked on
firmware update do not unplug the usb connection until the process is complete...
even when I remove the battery and then I turn on the phone it remains locked
Screen:
http://zupimages.net/viewer.php?id=17/37/z8va.jpg
i think you didn't install any Nougat bootloader and modem before flashing the rom
In TWRP wipe everything, then flash Nougat Bootloader and modem (this file) from TWRP:
https://www.androidfilehost.com/?fid=745425885120759121
and only after install Freedom Rom:
https://www.androidfilehost.com/?fid=745425885120759485
Check if it works
lk
lg g4
thank you for having answered, the problem I have no access to the TWRP, when I want to access the TWRP it makes a return to:
firmware update do not unplug the usb connection until the process is complete
thus impossible to install this link:
H815_29a_Modem_and_Bootloader_no_splash
Ok try with LgUP
1) First install Lg Bridge (for LG usb driver) HERE
2) Then install LG UP HERE (both LGUP_Install_Ver_1_14_3.msi and then LGUP_8994_DLL_Ver_0_0_3_23.msi)
3) After download THIS and copy these 2 .dll here C:\Program Files (x86)\LG Electronics\LGUP\model\8994
Download a .kdz LG G4 firmware like this 20d HERE
4) GO in Download mode with your G4
Plug the USB Cable into the PC(not connected to the LG G4)
Have you PC Powered On and Logged in
Power Down the LG G4
Press and Hold the Volume Up Button on the LG G4
While Holding Volume Up, Plug the USB Cable into the LG G4
Continue Holding the Volume Up Button After You See ‘Download Mode’
Let Go of the Volume Up Button When You See the ‘Firmware Update’ Screen on the G4
Click to expand...
Click to collapse
5) and following the indication you need from this post
TO DO A FULL WIPE AND INSTALL MM
1) Open the LGUP on your computer.
2) FILE PATH point it towards the MM KDZ (LgUP will see only .tot, so when you browse and search your .kdz pay attention to change in the menu .tot to *.* to see everyfile you have)
3) After you load the .kdz now shut down LGUP!
4) Now open LGUP again - you will notice that the MM KDZ will still be showing in the FILE PATH section.
5) Select REFURBISH and make sure BIN file is ticked. Press Start. Make cup of tea and be patient
Click to expand...
Click to collapse
you should able to install a clean stock 20d firmware on your G4 (i hope eheheheh)
ps: you will lose your root and TWRP, but after you could install them again
Gigio755 said:
Ok try with LgUP
1) First install Lg Bridge (for LG usb driver) HERE
2) Then install LG UP HERE (both LGUP_Install_Ver_1_14_3.msi and then LGUP_8994_DLL_Ver_0_0_3_23.msi)
3) After download THIS and copy these 2 .dll here C:\Program Files (x86)\LG Electronics\LGUP\model\8994
Download a .kdz LG G4 firmware like this 20d HERE
4) GO in Download mode with your G4
5) and following the indication you need from this post
you should able to install a clean stock 20d firmware on your G4 (i hope eheheheh)
ps: you will lose your root and TWRP, but after you could install them again
Click to expand...
Click to collapse
I have the exact same issue, tried the above but lgup wil stuck at 11 procent with an 0x2000 error message "Invalid command response"
I have tried to flash the 20d version a couple of times but no luck with that so I tried the 10b version still no luck and ending up with the same error. So I decided to give it another try with H81520p_00_0314.kdz and guess what, it flashed and booted up and installing apps now.
I have not been able to download the file, every time I have this error message that appears:
Download interrupted
Robert_1968_ said:
I have the exact same issue, tried the above but lgup wil stuck at 11 procent with an 0x2000 error message "Invalid command response"
I have tried to flash the 20d version a couple of times but no luck with that so I tried the 10b version still no luck and ending up with the same error. So I decided to give it another try with H81520p_00_0314.kdz and guess what, it flashed and booted up and installing apps now.
Click to expand...
Click to collapse
I have not been able to download the file (H81520D_00_0115) , every time I have this error message that appears:
Download interrupted
Gigio755 said:
Ok try with LgUP
1) First install Lg Bridge (for LG usb driver) HERE
2) Then install LG UP HERE (both LGUP_Install_Ver_1_14_3.msi and then LGUP_8994_DLL_Ver_0_0_3_23.msi)
3) After download THIS and copy these 2 .dll here C:\Program Files (x86)\LG Electronics\LGUP\model\8994
Download a .kdz LG G4 firmware like this 20d HERE
4) GO in Download mode with your G4
5) and following the indication you need from this post
you should able to install a clean stock 20d firmware on your G4 (i hope eheheheh)
ps: you will lose your root and TWRP, but after you could install them again
Click to expand...
Click to collapse
wesqz said:
I have not been able to download the file (H81520D_00_0115) , every time I have this error message that appears:
Download interrupted
Click to expand...
Click to collapse
it works...
try the link for the 20g HERE
Robert_1968_ said:
I have the exact same issue, tried the above but lgup wil stuck at 11 procent with an 0x2000 error message "Invalid command response"
I have tried to flash the 20d version a couple of times but no luck with that so I tried the 10b version still no luck and ending up with the same error. So I decided to give it another try with H81520p_00_0314.kdz and guess what, it flashed and booted up and installing apps now.
Click to expand...
Click to collapse
good! can you link please the 20p? peraphs the guy above needs it
Gigio755 said:
it works...
try the link for the 20g HERE
good! can you link please the 20p? peraphs the guy above needs it
Click to expand...
Click to collapse
http://lg-kdz.com/?dir=LG G4/H815
thank you my phone is operational
Robert_1968_ said:
http://lg-kdz.com/?dir=LG G4/H815
Click to expand...
Click to collapse
do you still have the KDZ file? i cannot find the H815 20p KDZ file
Rmegaxx said:
do you still have the KDZ file? i cannot find the H815 20p KDZ file
Click to expand...
Click to collapse
Here is:
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
Click on link: 1) Firmware Files - Click HERE!
Rmegaxx said:
do you still have the KDZ file? i cannot find the H815 20p KDZ file
Click to expand...
Click to collapse
Maybe a bit late, but I haven't been around on xda for a while.
https://lg-firmwares.com/files-update-2017-03-30/
here you fiund the kdz if you still need it.
sorry for the late response

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