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] Can't change into download mode LG G3 D855

Hey Guys,
I want to flash the stock rom on my LG G3 D855, but somehow lgflashtool cant change into download mode. I tried to flash with the .kdz file but it doesnt work either.
And now my phone is stuck in the firmwarte update screen. I cant do anything when I try to turn it on it just goes back into the firmware update screen. I tried to do the hardreset with the buttons but it doesnt work.
Can someone please help ?
EDIT: Hey guys I solved the problem by returning it to telekom (my carrieer) and they send me a new LG G3 on the next day. But when I tried to flash my G3 with the .kdz method I didnt put the .kdz file into the same folder as the LGFlashTool, maybe that was the reason why it didnt work.

Khoalition said:
Hey Guys,
I want to flash the stock rom on my LG G3 D855, but somehow lgflashtool cant change into download mode. I tried to flash with the .kdz file but it doesnt work either.
And now my phone is stuck in the firmwarte update screen. I cant do anything when I try to turn it on it just goes back into the firmware update screen. I tried to do the hardreset with the buttons but it doesnt work.
Can someone please help ?
Click to expand...
Click to collapse
did you install all the drivers needed?
http://forum.xda-developers.com/lg-g3/general/flashing-guide-to-lg-t2825369

vak20 said:
did you install all the drivers needed?
http://forum.xda-developers.com/lg-g3/general/flashing-guide-to-lg-t2825369
Click to expand...
Click to collapse
Yup tried everything.

Khoalition said:
Hey Guys,
I want to flash the stock rom on my LG G3 D855, but somehow lgflashtool cant change into download mode. I tried to flash with the .kdz file but it doesnt work either.
And now my phone is stuck in the firmwarte update screen. I cant do anything when I try to turn it on it just goes back into the firmware update screen. I tried to do the hardreset with the buttons but it doesnt work.
Can someone please help ?
Click to expand...
Click to collapse
I have the same Problem and I also have installed the drivers. please help

smiloradovic said:
I have the same Problem and I also have installed the drivers. please help
Click to expand...
Click to collapse
be sure NOT to use usb 3 port

my laptop has only usb 2 ports and i tried all usb ports and i get the error every time

smiloradovic said:
my laptop has only usb 2 ports and i tried all usb ports and i get the error every time
Click to expand...
Click to collapse
What method did you use?
If you used the .kzd method (http://forum.xda-developers.com/showthread.php?t=2785089) dont forget to put the .kdz file in the same folder as the LGFlashTool
If that doesnt work, you should go and replace it.

Khoalition said:
What method did you use?
If you used the .kzd method (http://forum.xda-developers.com/showthread.php?t=2785089) dont forget to put the .kdz file in the same folder as the LGFlashTool
If that doesnt work, you should go and replace it.
Click to expand...
Click to collapse
I solved it. I took a friends laptop and tried it on it. In 5 min we were done but thank you.

LG G3 Can't change to download mode
Khoalition said:
Hey Guys,
I want to flash the stock rom on my LG G3 D855, but somehow lgflashtool cant change into download mode. I tried to flash with the .kdz file but it doesnt work either.
And now my phone is stuck in the firmwarte update screen. I cant do anything when I try to turn it on it just goes back into the firmware update screen. I tried to do the hardreset with the buttons but it doesnt work.
Can someone please help ?
EDIT: Hey guys I solved the problem by returning it to telekom (my carrieer) and they send me a new LG G3 on the next day. But when I tried to flash my G3 with the .kdz method I didnt put the .kdz file into the same folder as the LGFlashTool, maybe that was the reason why it didnt work.
Click to expand...
Click to collapse
having same problem with my LG G3 D850 .... currently running on custom rom I want to install stock rom http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/AT&T+D850/
but it gives me error Can't change to download mode .... Can see in (picture)

[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 G4 H81010o AT&T "Secure booting Error 1006" and "bleu led"

Hello,
I got the LG G4 H810 (H81010o AT&T) and I tried to flash it whit a rom but somthing goes wrong.
Now when I boot my phone I got directly the message blew and even the LG Logo don't appear.
[700]--------------------------------------------------------
[750]
[800] Secure booting Error!
[850] Error Code : 1006
[900] OFFICIAL !!
[950]
[1000]--------------------------------------------------------
I manage to install TWRP but i can't install a rom or I don't know how.
Can someone please help me ?
Thank you very much,
imider

imider said:
Hello,
I got the LG G4 H810 (H81010o AT&T) and I tried to flash it whit a rom but somthing goes wrong.
Now when I boot my phone I got directly the message blew and even the LG Logo don't appear.
[700]--------------------------------------------------------
[750]
[800] Secure booting Error!
[850] Error Code : 1006
[900] OFFICIAL !!
[950]
[1000]--------------------------------------------------------
I manage to install TWRP but i can't install a rom or I don't know how.
Can someone please help me ?
Thank you very much,
imider
Click to expand...
Click to collapse
these devices have locked bootloaders. how did u install twrp?
best bet would to be to find what ever firmware device was on and reflash it with lg up or flash tool if u still have download mode.

Thanks for your reply.
I really don't know what i did to install twrp.
I try to use flash tool but doesn't detect my phone.

imider said:
Thanks for your reply.
I really don't know what i did to install twrp.
I try to use flash tool but doesn't detect my phone.
Click to expand...
Click to collapse
With flash tool goto device manager on pc.
click ports and com get into settings on it and change com port to 41
and have device in download mode powered off volume up + insert usb cord from pc

@imider I have the same problem trying to recover from a hardbrick on H815. Tell me what happens if you pull battery, plug bag, hold VOL DOWN and insert USB. Do you get fastboot?
EDIT: You might be able to flash it in FlashTool (I said no before) because I see you have Official Status not MODIFIED.

Thanks for your reply guys.
I manage to flash it with LGUP with a TOT that I downloaded.
Thanks.
:good::good::good::good::good::good:

imider said:
Thanks for your reply guys.
I manage to flash it with LGUP with a TOT that I downloaded.
Thanks.
:good::good::good::good::good::good:
Click to expand...
Click to collapse
Congrat @imider ,
maybe you can share what you did to fix your G4

Hello,
First I wanted to flash a clean rom on LG G4 H810 and I don't know what I did but the flash doesn't work and my phone has a black screen even the logo is not displayed.
When I connect my phone to my PC (windows 10) it's detected as "Qualcomm HS-USB QDLoader 9008".
Now this is the step that I follow to repair my phone :
1) I follow this tuto : https://forum.xda-developers.com/g4/help/lg-g4-bricked-qualcomm-hs-usb-qdloader-t3609999
2) After that I can enter download mode
3) I flashed a tot with LGUP
I hope it will help.

lg g4
Hi. I have lg g4 h81010o android 5.1. I put custom firmware and decided to fix build.prop. after that it at me didn't turn on. and I accidentally flashed it with another firmware.through qfil I restored the com port..but the LGUP program doesn't define my model..driver changed and LGUP version does not help. I think it's because I changed in build.prop..please help me find a solution