Develop Bugs

Cant flash kdz file

guys, whenever i tried to flash kdz file , it automatically goes from download mode to bootloader.
i tired using r&d tool,KDZ_FW_UPD and lg pc suite hack. all have the same problem.
can anyone help me?

shirish893 said:
guys, whenever i tried to flash kdz file , it automatically goes from download mode to bootloader.
i tired using r&d tool,KDZ_FW_UPD and lg pc suite hack. all have the same problem.
can anyone help me?
Click to expand...
Click to collapse
Disconnect phone and pressing for 12 seconds power button (don't close KDZ Firmware updater or R&D Support Tool), well when your LG Optimus G is total shutdown, put it again on download mode and connect to PC, flash process continue without problems.

Stuck in cwm boot loop, help plz

I have LG optimus g pro E988 (India) , rooted and installed debloted rom from anirudh, done so many stupid things with my phone but never bricked it but my phone model number is changed and now its E980, i was bored with my jb so think about update it to KK so i go to cwm and restore the stock lg rom which was also rooted then hit update and after my phone downloaded update i m stuck in cwm boot loop, did every thing but nothing work because my phone driver is not matching because it is now E980...... i tried to connect adb to delete fota files but there is no adb devices in list, Please help if u can and sorry for bad english.
i tried to fallow this link-
http://forum.xda-developers.com/optimus-g-pro/general/guide-how-to-solve-stuck-cwm-twrp-t2852103

No success yet.
Tried to use LG mobile support tool to go back to stock but no success, what weird is in LG mobile support tool my phone shows as E988(Correct) when i connect with download mode on but when i m in cwm and try to connect to pc in device manager it shows as E980 and yellow exclamation mark. if i can connect to adb, my problem would be solve but how????? can anyone help?????:crying:

No upgrade item to fix
In lg mobile support tool when i try to upgrade recovery it says no upgrade item to fix, help me guys i cant fix my phone yet:crying:

If you're still stock at the cwm loop, try flashing cwm again with a cwm.zip file. That works for me every time when I get stock in the recovery loop.
Edit: Besides flashing the recovery zip file, you also need to flash your ROM and gapp from within the new recovery you just flashed.

yourseone said:
Tried to use LG mobile support tool to go back to stock but no success, what weird is in LG mobile support tool my phone shows as E988(Correct) when i connect with download mode on but when i m in cwm and try to connect to pc in device manager it shows as E980 and yellow exclamation mark. if i can connect to adb, my problem would be solve but how????? can anyone help?????:crying:
Click to expand...
Click to collapse
That is correct, get an ADB working folder in your computer (or download it from Google) and push a ROM with it, search for the commands on how to push a ROM through ADB, I'm not at home or else I'll point it to you step by step, try it on yourself and let me know if you need additional help.

Working now (Fixed)
Fixed it by flashing KDZ
First Method - http://forum.xda-developers.com/showthread.php?t=2420219
Also Thanks for replying guys, I thought OG Pro community is dead, but after searching for lot about it i found the solution. XDA Rocks ..... :good:

[Q] Stuck at fast boot LG G3 F400L

Hi all,
Long time user first time posting a thread [sorry couldn't help myself]
Anyway I have a LG G3 F400L and I accidentally installed D855 rom on to it [AndroidNow_HD_8.0_Lollipop].
I have tried flash tool to flash the correct firmware but to no effect it now detects it as D855, so I cant install the F400L firmware using the F400L dll. I am installing an older firmware i.s 10e I have also tried 20f for F400L but the new flash tool doesn't recognize my phone, I have tried different USB ports and a different PC with Windows 7 32bit still nothing.
I am using Windows 8.1 64bit.
Regards and thank you for the help.

Anyone, please help.

Use cwm or any other recovery backup to restore

akashvermaofskt said:
Use cwm or any other recovery backup to restore
Click to expand...
Click to collapse
Thank you for the response. I do not have access to recovery, only download mode works.
Update: I have tried using a general Dll to flash TOT file via flashtool but it doesn't let me error CrossDl [D855] to [F400L].

I had this and I set for 4 hours figuring out how to fix it. ( I had not accsess to the download mode first only to hard reset which didn't work and the "Fastboot mode started")
If you have access to the Download mode that's perfect, Follow this Tut:http://lgg3root.com/lg-g3-root/how-to-unrootunbrick-lg-g3/
Please make sure you download the correct TOT file for your phone.
http://downloadandroidfiles.org/Files/LG G3/Stock Files/

SaharLevi said:
I had this and I set for 4 hours figuring out how to fix it. ( I had not accsess to the download mode first only to hard reset which didn't work and the "Fastboot mode started")
If you have access to the Download mode that's perfect, Follow this Tut:
Please make sure you download the correct TOT file for your phone.
Click to expand...
Click to collapse
Thank you that did work sort of, I was doing the same thing but someone in the comments referred to a modded DLL for the flash which did the job to some extent at least.
Its back to stock but stuck at McAfee activation, requires a pin which I do not have nor have ever created one, and now a Kill switch has been engaged and no more download mode. Out of the fire into the frying pan is what I feel like right now 100hours and 33mins without my G3, but who is counting.

That's sucks where did the McAfee activation came from??
Have you tried a hard reset ? or can you access the fastboot mode again ?

SaharLevi said:
That's sucks where did the McAfee activation came from??
Have you tried a hard reset ? or can you access the fastboot mode again ?
Click to expand...
Click to collapse
Nothing, no download mode or recovery. Boots up asks for language selection and then McAfee pops up of PIN. I am talking to McAfee support hopefully they can help.

Goodluck with that!

Thank you all.
Finally fixed. Just needed to be quick, the McAfee app gives you about 30 secs to do your thing then it pops up for pin. I opened up the McAfee app -> setting and changed the pin .

[Q] My lg G4 STUCK ON DOWNLOAD MODE

my phone is not working

pilo99 said:
i think i accidently bricked my lg g4 ....now it is stuck on download mode , i tried to get to the stock recovery through the buttons ..volume down and power but it keep rebooting to download mode , plz any help will be appreciated
Click to expand...
Click to collapse
Have you pulled battery and turned back on?

pilo99 said:
i think i accidently bricked my lg g4 ....now it is stuck on download mode , i tried to get to the stock recovery through the buttons ..volume down and power but it keep rebooting to download mode , plz any help will be appreciated
Click to expand...
Click to collapse
i did pull the battery and waited 30 second and it is the same thing it keep going to download mode

pilo99 said:
i think i accidently bricked my lg g4 ....now it is stuck on download mode , i tried to get to the stock recovery through the buttons ..volume down and power but it keep rebooting to download mode , plz any help will be appreciated
Click to expand...
Click to collapse
more info is better than none, what did you do to "accidentally brick" your phone? and if you are stuck in download mode you could try the lg mobile support tool and re load the rom for your device.

zPacKRat said:
more info is better than none, what did you do to "accidentally brick" your phone? and if you are stuck in download mode you could try the lg mobile support tool and re load the rom for your device.
Click to expand...
Click to collapse
Thanks a lot , i dont think there is a room yet for lg g4 tmobile i looked every where for the kdz and tot file ...

pilo99 said:
Thanks a lot , i dont think there is a room yet for lg g4 tmobile i looked every where for the kdz and tot file ...
Click to expand...
Click to collapse
READ completely, including the link in 4 before starting!!!
download the tool using the lg d851, under t-mobile. the tool is generic, and can be found at lg.com under support/downloads
1. install LG Mobile Support Tool
2. run Tool, it will query lg for updates and do so if needed.
3. Install USB Driver (dismiss if you have done so already)
4. follow this process: http://forum.xda-developers.com/showpost.php?p=51268802&postcount=21 (use 5. below to put into download mode, not vol up and down like the link states)
5. with your device off, hold the volume up button while plugging in your USB cable with the Tool open.
6 you system will recognize the device and configure drivers, this will take a minute.
7. continue following the link in 4.

I ran into the same problem and now i'm stuck in downloadmode!
Does this method work? Or is there any other fix yet?
Thanks in advance!

schwederino said:
I ran into the same problem and now i'm stuck in downloadmode!
Does this method work? Or is there any other fix yet?
Thanks in advance!
Click to expand...
Click to collapse
no i did not fix mine yet i am on tmobile am not sure if they will consider return am still within retun policy

hey guys, don't ask for a different fix if you don't bother to explain how your phone got stuck in download mode. as for does this work? Why don't you try, it's the same tool used to upgrade firmwares instead of using OTA, and the link included shows how to get the tool to download the file (if it sees the same/current f/w it does not download the firmware) and you have nothing to loose, and this method is often used to recover from "soft bricking" your phone.

i was restoring my LG G3 to stock through the lg flash tool .....when i got through with it and restore was succesfull. somehow i forget the usb cable plugged through my pc usb port ...then connected my lg g4 that is where the flash tool got my Lg g4 on Downloade mode ....i tried all the methodes somehow i think the recovery is messed up .....i can get to the recovery through the button but it reboot straight to the download mode ....thanks every one for their support

pilo99 said:
i was restoring my LG G3 to stock through the lg flash tool .....when i got through with it and restore was succesfull. somehow i forget the usb cable plugged through my pc usb port ...then connected my lg g4 that is where the flash tool got my Lg g4 on Downloade mode ....i tried all the methodes somehow i think the recovery is messed up .....i can get to the recovery through the button but it reboot straight to the download mode ....thanks every one for their support
Click to expand...
Click to collapse
did you try what I listed earlier?

Yesi did every step and it does not seemto help.. Thanks again...

Yes i followed all the steps including reinstalling drivers and the lg mobile for the D851

Good luck, if you did the kdz there is the LG flash tool

zPacKRat said:
Good luck, if you did the kdz there is the LG flash tool
Click to expand...
Click to collapse
When did the kdz come out? You have link for this?

MicroMod777 said:
When did the kdz come out? You have link for this?
Click to expand...
Click to collapse
don't think it's out yet, however my statement was somewhat incoherent. I meant to say if he had the kdz, he could use the flash tool to recover his phone.

zPacKRat said:
don't think it's out yet, however my statement was somewhat incoherent. I meant to say if he had the kdz, he could use the flash tool to recover his phone.
Click to expand...
Click to collapse
Yea, at this point there no way to fix this without a kdz that I know of.
Call LG and tell them you need the kdz to restore your G4.

i was lucky, i had flashed twrp before my phone soft brick..
Sent from my unlocked and rooted LG-H815

I got an LG G4 which is stuck on lg screen. When I put it in download mode, it shows download mode for a few seconds and restarts. I was trying to flash ZVB over ZVD and it ended up like this. Model is ls991 . Any help would be really appreciated!

Anyone got any idea? The whole thing started with getting rid of the Genisys rom ... I did not like it ... I thought I was going to bring it back to the stock, but then LG Up wrote an unkown device ... I thought it was flash with lg bridge ... that's what I lost. .. has removed recovery and has stopped updating at 16% ... since then it is only download mode I tried to update but failed with all three programs ... LG up to start - unkown device, LG bridge stop at 16% , LG Falsh Tool 9% ... sorry for my english

LG G3 D851 10f at Zero stage Help.. Urgent Please someone

hi dev.
My lg g3 d851 is rooted..and i want to flash roms in it.. so i heared that i have to be rooted.and cwm installed.i did successfully rooted my device.. and downloaded the twrp as my varient is d851 . to flash it i hae to download flashify .it opened and flashed the recovery successfully.after that it prompted me to reboot. as i did .LG logo came up and wih the blink of an eye it disappeared and black screen came up with a micro text line saying [780] fastboot adb started.
when i tried to manually go through the recovery mode. i did hold down the volume down button and held the power button. as the LG logo appeared i released for half a sec and then quickly presssed it again. but it again said something with the micro text.. i am searching here and there on the internet .it is my favourite forum ( XDA ) it was helpfull for me with every other phone i've used but this time im getting no Help..
my current android version is KitKat 4.4.2
Software version is D85110f
Build Number is KT49L.D85110f
Rooted.
Kindly Help me
I didn't even have stock recovery nor the TWRP.
Kindly Help me ASAP.....

GeekYagami said:
hi dev.
My lg g3 d851 is rooted..and i want to flash roms in it.. so i heared that i have to be rooted.and cwm installed.i did successfully rooted my device.. and downloaded the twrp as my varient is d851 . to flash it i hae to download flashify .it opened and flashed the recovery successfully.after that it prompted me to reboot. as i did .LG logo came up and wih the blink of an eye it disappeared and black screen came up with a micro text line saying [780] fastboot adb started.
when i tried to manually go through the recovery mode. i did hold down the volume down button and held the power button. as the LG logo appeared i released for half a sec and then quickly presssed it again. but it again said something with the micro text.. i am searching here and there on the internet .it is my favourite forum ( XDA ) it was helpfull for me with every other phone i've used but this time im getting no Help..
my current android version is KitKat 4.4.2
Software version is D85110f
Build Number is KT49L.D85110f
Rooted.
Kindly Help me
I didn't even have stock recovery nor the TWRP.
Kindly Help me ASAP.....
Click to expand...
Click to collapse
Personally i don't really like flashify or any other similar apps.But as you are a beginner at all these follow this simple steps.
Can you boot your phone?
Try using the official App provided by TWRP
Go to Google Play Store and search Official TWRP app,download
Go to the application and select "TWRP Flash" option,after that select your device model and then select the latest TWRP version(3.0.2.0 or 3.0.3.0).
After all these click the bottom Download TWRP.
That's all.

Can you boot your phone?
Try using the official App provided by TWRP
Go to Google Play Store and search Official TWRP app,download
Go to the application and select "TWRP Flash" option,after that select your device model and then select the latest TWRP version(3.0.2.0 or 3.0.3.0).
After all these click the bottom Download TWRP.
That's all.[/QUOTE]
Yes i can Boot my phone.and i have also tried the official twrp app..but still when i boot into recovery it says fastboot mode started

GeekYagami said:
Can you boot your phone?
Try using the official App provided by TWRP
Go to Google Play Store and search Official TWRP app,download
Go to the application and select "TWRP Flash" option,after that select your device model and then select the latest TWRP version(3.0.2.0 or 3.0.3.0).
After all these click the bottom Download TWRP.
That's all.
Click to expand...
Click to collapse
Yes i can Boot my phone.and i have also tried the official twrp app..but still when i boot into recovery it says fastboot mode started[/QUOTE]
Try re-flashing your Stock ROM.

Dude how can i reflash.. when i can't get to recovery mode or downloading mode..? how is it possible to flash anything just like that
.

GeekYagami said:
Dude how can i reflash.. when i can't get to recovery mode or downloading mode..? how is it possible to flash anything just like that
.
Click to expand...
Click to collapse
I'll link you and a guide on how to reflash dl mode.
Edit: Here https://forum.xda-developers.com/lg-g3/help/how-to-lg-g3-download-mode-stuck-t3325120

First of all thanx man for bieng there.
secondly i've already did it the link procedure says..i successfully flashed laf.img but still im in fastboot mode. i just wanna know my varient is D85110f and i think thats the only problem i can't find laf.img for 10f there are 10c 10m 10r but no 10f even on the whole internet i searched here and there but couldn't find files for 10f what should i do. i cant access the download mode. i dont have recover. i even curropted my stock recover. i can't even go the factory reset mode.. but my phone is working like a charm no issue no problem.. every thing is working flawlessly . but still i need the download mode,stock recovery,and custom recovery. my software version is D85110f the (F) is the f++king problem. 've flashed 10C laf.img with no issue. what to do man. seriously its killing me inside.. help me.ASAP.

GeekYagami said:
First of all thanx man for bieng there.
secondly i've already did it the link procedure says..i successfully flashed laf.img but still im in fastboot mode. i just wanna know my varient is D85110f and i think thats the only problem i can't find laf.img for 10f there are 10c 10m 10r but no 10f even on the whole internet i searched here and there but couldn't find files for 10f what should i do. i cant access the download mode. i dont have recover. i even curropted my stock recover. i can't even go the factory reset mode.. but my phone is working like a charm no issue no problem.. every thing is working flawlessly . but still i need the download mode,stock recovery,and custom recovery. my software version is D85110f the (F) is the f++king problem. 've flashed 10C laf.img with no issue. what to do man. seriously its killing me inside.. help me.ASAP.
Click to expand...
Click to collapse
I see that you have messed a lot with your system partitions.
I'll try to find something helpful.
Till then try checking if you can use system upgrade.(To go for example to lollipop while it may save your phone and also be able to flash the correct laf.img)
Question:After you finished the procedure on flashing the laf.img(for d851)(also you can flash the 10d laf.img as the OP said in the guide)did you pull the battery out and Boot to download mode(manually)?
How to get to Download Mode

yes i did try to boot into dl mode manually..

GeekYagami said:
yes i did try to boot into dl mode manually..
Click to expand...
Click to collapse
You also did pull the battery after flashing laf.img(10d) for D851 Model?
So... I think that after you tried doing all these and nothing worked, you'll be unable to get Download mode back,but let me check some of the system partitions and check if you can manually insert the laf.img file.

Somehow you can insert the laf file to your phone but it needs extracting (the laf.img) to get the proper file.
I found the location of the laf file.
But if anyone can be found with D851 can send the laf file here for you.
Two other solutions are:
1.Staying without dl mode? Maybe.
2.Buying a new motherboard.

Links to LAF files in this post:
https://forum.xda-developers.com/lg-g3/help/how-to-lg-g3-download-mode-stuck-t3325120
Specifically, here's the download site for stock partitions:
http://downloads.codefi.re/autoprime/LG/LG_G3/D851/stock_partitions

hey there ...
mate there is some serious trouble im into.. my software said its D851 but when i opened the case i've found LS990 on the motherboard.my phone is now in Qualcomm HS-USB Qdload 9008 mode..what should i do now.. help me on this..i've tried board diag its says device not found in dload mode try flsh programmer.something like that.. what to do i've bricked my phone..and the repairing guy is asking for around 90$.. what should i do now..

Try using the LAF for the LS990, here:
http://downloads.codefi.re/autoprime/LG/LG_G3/LS990
I'm not familiar with the Qdload mode, or what to do there, so sadly other's will have to help you out.

@GeekYagami
Check here:
https://forum.xda-developers.com/lg-g3/help/how-to-hard-unbricked-lg-g3-variants-t3394575
It discusses the mode you seem to be in.