Develop Bugs

[Q] HELP PLEASE I can't enter download mode or fastboot but can enter twrp and boot!

HI! I recently upgraded to an lg g3 and I immediately installed twrp, and put a custom ROM on, now I want to switch back to the stock firmware. I don't have a backup of the LAF file and I can't enter download mode and fastboot isn't working. When I try to enter download mode (holding down top volume key and plugging into PC [I've tried both usb 3.0 and 2.0 with original cable]), lg logo briefly flashes on screen and blue led flickers then the screen is black and the phone shows up on my computer in device manager as Qualcomm HS-USB QDLoader 9008. I wiped my phone through twrp and restored my early backup from when I had just rooted it but that didn't change anything. Now the thing is, I have twrp installed and I can enter twrp just and the phone boots into any custom rom just fine.. The phone is rooted and has twrp recovery. I need to revert to stock but I can't without download mode or fastboot. Any help would be really appreciated! How can I fix download mode? I'm on an lg vs985. ADB works as well.

7064N said:
....
Click to expand...
Click to collapse
try to get an vs985 laf.img from someone(I can't help because I have an d855) then put it onto the internal memory of your phone and typ this adb command
Code:
adb shell
su
dd if=/sdcard/laf.img of=/dev/block/platform/msm_sdcc.1/by-name/laf

suljo94 said:
try to get an vs985 laf.img from someone(I can't help because I have an d855) then put it onto the internal memory of your phone and typ this adb command
Code:
adb shell
su
dd if=/sdcard/laf.img of=/dev/block/platform/msm_sdcc.1/by-name/laf
Click to expand...
Click to collapse
I have another problem ... I need the stock recovery image from d855 .. Do you have that image ?

Snuk265 said:
I have another problem ... I need the stock recovery image from d855 .. Do you have that image ?
Click to expand...
Click to collapse
why do you need the stock recovery

try to get an vs985 laf.img from someone(I can't help because I have an d855) then put it onto the internal memory of your phone and typ this adb command
Code:
adb shell
su
dd if=/sdcard/laf.img of=/dev/block/platform/msm_sdcc.1/by-name/laf
Click to expand...
Click to collapse
Luckily I backed up the laf I think, never wiped storage. I'll give this a shot, thanks!

suljo94 said:
try to get an vs985 laf.img from someone(I can't help because I have an d855) then put it onto the internal memory of your phone and typ this adb command
Code:
adb shell
su
dd if=/sdcard/laf.img of=/dev/block/platform/msm_sdcc.1/by-name/laf
Click to expand...
Click to collapse
YES!! THAT WORKED!!! Thank you so much! Laf file if anyone needs it http://goo.gl/EdtEFu

suljo94 said:
why do you need the stock recovery
Click to expand...
Click to collapse
I will revert Form twrp to stock recovery .... I cant find my saved image -.-" i need the recovery for the ota update

suljo94 said:
try to get an vs985 laf.img from someone(I can't help because I have an d855) then put it onto the internal memory of your phone and typ this adb command
Code:
adb shell
su
dd if=/sdcard/laf.img of=/dev/block/platform/msm_sdcc.1/by-name/laf
Click to expand...
Click to collapse
Do anyone know to to unbrick G3 D855 ?
No download mode ,No recovry ,Not booting up... (No Root only 4.4.2 stock rom)
I chack in here and can't found any good answer.
Thank you!
This for G2 and with root...
http://forum.xda-developers.com/showthread.php?t=2582142

u1988 said:
Do anyone know to to unbrick G3 D855 ?
No download mode ,No recovry ,Not booting up... (No Root only 4.4.2 stock rom)
I chack in here and can't found any good answer.
Thank you!
This for G2 and with root...
http://forum.xda-developers.com/showthread.php?t=2582142
Click to expand...
Click to collapse
what does it still do? if fastboot mode comes up try downloading twrp from the bump thread and try using the fastboot command(you need adb set up for this)
Code:
fastboot flash recovery >Insert name of the file<

suljo94 said:
what does it still do? if fastboot mode comes up try downloading twrp from the bump thread and try using the fastboot command(you need adb set up for this)
Code:
fastboot flash recovery >Insert name of the file<
Click to expand...
Click to collapse
Thank you for the answer, but His G3 are not with root...it will flash TWRP ?
I saw a few links that tell him to try to enter to fastboot and flash via (cmd) adb fastboot laf.img.
fastboot erase recovery
fastboot erase laf
fastboot flash laf laf.img
fastboot reboot
Click to expand...
Click to collapse
But the stock_partitions files are for 16GB - 4.4.2 and 32GB -5.0 (non- 32 for 4.4.2 it make diffrend?!)
http://forum.gsmhosting.com/vbb/f77...tarted-no-download-mode-1900922/#post10816834
-
http://forum.xda-developers.com/lg-g3/help/tutorial-fixing-fastboot-mode-started-t2995854

u1988 said:
Thank you for the answer, but His G3 are not with root...it will flash TWRP ?
I saw a few links that tell him to try to enter to fastboot and flash via (cmd) adb fastboot laf.img.
But the stock_partitions files are for 16GB - 4.4.2 and 32GB -5.0 (non- 32 for 4.4.2 it make diffrend?!)
http://forum.gsmhosting.com/vbb/f77...tarted-no-download-mode-1900922/#post10816834
-
http://forum.xda-developers.com/lg-g3/help/tutorial-fixing-fastboot-mode-started-t2995854
Click to expand...
Click to collapse
as long as you don't flash anything bet laf and recovery no biggy

Did somone try this?
http://forum.xda-developers.com/lg-g3/general/unbrick-lg-g3-t3086126

D851
**SOLVED**
Edit:"I installed fastboot drivers, connected phone to PC, used fastboot command <fastboot flash laf laf.img>, and I got download mode back"
Hi, I have D851 running stock 5.0 V20b, it is fully stock with no root and stock recovery, when i try to boot into download mode so I can root it, the csreen goes black and it says
""fastboot started..
Port change..
reset..""
The rest of the screen is blank.
I have the stock laf file for D851 running v20b, how should I flash it without losing my data?
Please be as detailed as possible because I get confused.
Thank you.

Did u do the abd via twrp?
7064N said:
YES!! THAT WORKED!!! Thank you so much! Laf file if anyone needs it http://goo.gl/EdtEFu
Click to expand...
Click to collapse
Sent from my Nexus 6 using Xparent Cyan Tapatalk 2

moosc said:
Did u do the abd via twrp?
Sent from my Nexus 6 using Xparent Cyan Tapatalk 2
Click to expand...
Click to collapse
No I used adb while android was booted.

suljo94 said:
try to get an vs985 laf.img from someone(I can't help because I have an d855) then put it onto the internal memory of your phone and typ this adb command
Code:
adb shell
su
dd if=/sdcard/laf.img of=/dev/block/platform/msm_sdcc.1/by-name/laf
Click to expand...
Click to collapse
You're a lifesaver! THANKS!

D850 laf.img needed
I'm in the same boat. Can't get into download mode after a failed factory reset in cyanogenmod. Anyone have a d850 laf.img ? All I have access to is the TWRP menu.

Same problem
Hi ! I have the same problem with L G3 D855 ! I have already rooted it ! and make an update from the PC suite OTA ( I know this is stupid ) now I can't turn it on ! its shows me error certification verify error ! and when enter to download mode the LED flash blue and the screen is black, and the pc dedicate it as Qualcomm HS-USB QDLoader 9008. I tried flash tool with KDZ file to get it back to stock rom but its stuck in 60% !
any help !

This worked for me
7064N said:
HI! I recently upgraded to an lg g3 and I immediately installed twrp, and put a custom ROM on, now I want to switch back to the stock firmware. I don't have a backup of the LAF file and I can't enter download mode and fastboot isn't working. When I try to enter download mode (holding down top volume key and plugging into PC [I've tried both usb 3.0 and 2.0 with original cable]), lg logo briefly flashes on screen and blue led flickers then the screen is black and the phone shows up on my computer in device manager as Qualcomm HS-USB QDLoader 9008. I wiped my phone through twrp and restored my early backup from when I had just rooted it but that didn't change anything. Now the thing is, I have twrp installed and I can enter twrp just and the phone boots into any custom rom just fine.. The phone is rooted and has twrp recovery. I need to revert to stock but I can't without download mode or fastboot. Any help would be really appreciated! How can I fix download mode? I'm on an lg vs985. ADB works as well.
Click to expand...
Click to collapse
It's not english, it is portuguese Brazil, but it works.
youtube.com/watch?v=gHAA5e2FQbU&index=1&list=LLtlXyuPzN6skeex-P2apfrQ

Snuk265 said:
I have another problem ... I need the stock recovery image from d855 .. Do you have that image ?
Click to expand...
Click to collapse
You can download all stock partitions from here
http://downloads.codefi.re/autoprime/LG/LG_G3/
If you have kdz or tot file you can also extract your recovery, laf and other partitions as well....
---------- Post added at 08:52 AM ---------- Previous post was at 08:49 AM ----------
STALKER18 said:
Hi ! I have the same problem with L G3 D855 ! I have already rooted it ! and make an update from the PC suite OTA ( I know this is stupid ) now I can't turn it on ! its shows me error certification verify error ! and when enter to download mode the LED flash blue and the screen is black, and the pc dedicate it as Qualcomm HS-USB QDLoader 9008. I tried flash tool with KDZ file to get it back to stock rom but its stuck in 60% !
any help !
Click to expand...
Click to collapse
You can try this fix
http://forum.xda-developers.com/lg-g3/general/fix-unbrick-lg-g3-stuck-qualcomm-hs-usb-t2933853

[Q] LG G3 Stuck on fastboot! [FIXED!!!!!]

I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
UPDATE: FIXED IT!!!! What I did was use fastboot to load up an laf.img that I was able to download from someone on here (took a lot of searching to find an laf.img). Even though I was unable to flash the laf (tried a bunch of times and it always gave me that "failure to write" error right at the end), I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. Bear in mind that I still wouldn't get the serial number back from "fastboot devices" so if you're having this problem and it doesn't give you the serial number back it's ok. Just try to run some fastboot commands and see if you get a response on the phone, that way you'll know if fastboot is working. Anyway, I was then able to restore it via LGFlashtool. So yup, its fixable!

MWGiants said:
I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
Click to expand...
Click to collapse
Unfortunately its hard bricked and the repair center will know that you tampered with it. The nature of the LG bootloader makes it so that you cant write or boot any images using fastboot.
What was wrong with your method is, when you downgrade to KitKat android bootloader you have to also downgrade the bootloader, laf and recovery partition or other wise it bricks. You should have downgraded your phone using LG Flash Tool to KitKat and then root and install whatever you wanted
In your case the version mismatch between your aboot, bootloader and laf partition is the reason why it doesnt work

MWGiants said:
I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
Click to expand...
Click to collapse
If, as you say, you can enter Download Mode, you could try this Method by @hyelton :- http://forum.xda-developers.com/showthread.php?t=2785089. Any problems ask in that Thread, they will try and Help. GOOD LUCK.......:good:

itsbighead said:
Unfortunately its hard bricked and the repair center will know that you tampered with it. The nature of the LG bootloader makes it so that you cant write or boot any images using fastboot.
What was wrong with your method is, when you downgrade to KitKat android bootloader you have to also downgrade the bootloader, laf and recovery partition or other wise it bricks. You should have downgraded your phone using LG Flash Tool to KitKat and then root and install whatever you wanted
In your case the version mismatch between your aboot, bootloader and laf partition is the reason why it doesnt work
Click to expand...
Click to collapse
OK sir, I fixed it so clearly it was not hard bricked (don't say that if you aren't sure, it would have cost me plenty of money to replace that had I not known better). What I did was use fastboot to load up an laf.img that I was able to download from someone on here. Even though I was unable to flash the laf, I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. I was then able to restore it via LGFlashtool. So yup, its fixable!
573v3 said:
If, as you say, you can enter Download Mode, you could try this Method by @hyelton :- http://forum.xda-developers.com/showthread.php?t=2785089. Any problems ask in that Thread, they will try and Help. GOOD LUCK.......:good:
Click to expand...
Click to collapse
Yeah, once I got it into download mode (that was the whole problem, I was stuck in fastboot) I was able to fix it.

MWGiants said:
OK sir, I fixed it so clearly it was not hard bricked (don't say that if you aren't sure, it would have cost me plenty of money to replace that had I not known better). What I did was use fastboot to load up an laf.img that I was able to download from someone on here. Even though I was unable to flash the laf, I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. I was then able to restore it via LGFlashtool. So yup, its fixable!
Yeah, once I got it into download mode (that was the whole problem, I was stuck in fastboot) I was able to fix it.
Click to expand...
Click to collapse
congrats. it is good to know it is fixable

That's awesome to hear. It seems that booting the laf partition does not actually work under fastboot mode for D855 variants which is why I thought it wouldn't work for you
Sent from my iPad using Tapatalk

That's great. And what fastboot commands did you use to execute the laf from your computer ?
Verstuurd vanaf mijn HTC One_M8 met Tapatalk

Hakem said:
That's great. And what fastboot commands did you use to execute the laf from your computer ?
Verstuurd vanaf mijn HTC One_M8 met Tapatalk
Click to expand...
Click to collapse
Fastboot boot laf.img
But beware this doesnt work for D855. His LS980 has a unlocked bootloader

Ok thanks
Verstuurd vanaf mijn HTC One_M8 met Tapatalk

MWGiants said:
I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
UPDATE: FIXED IT!!!! What I did was use fastboot to load up an laf.img that I was able to download from someone on here (took a lot of searching to find an laf.img). Even though I was unable to flash the laf (tried a bunch of times and it always gave me that "failure to write" error right at the end), I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. Bear in mind that I still wouldn't get the serial number back from "fastboot devices" so if you're having this problem and it doesn't give you the serial number back it's ok. Just try to run some fastboot commands and see if you get a response on the phone, that way you'll know if fastboot is working. Anyway, I was then able to restore it via LGFlashtool. So yup, its fixable!
Click to expand...
Click to collapse
Hey bro i m having same issue ! Can you please explain laf.img , i tried twrp.img !
What does 'laf' means

bikrame said:
Hey bro i m having same issue ! Can you please explain laf.img , i tried twrp.img !
What does 'laf' means
Click to expand...
Click to collapse
Hi, sorry for the late reply. I hope you've already fixed it, but if you're still having this problem then let me explain. "laf.img" is the "download mode" partition. The reason you can't use twrp.img (which is a recovery partition image) is because you're "too far gone" so to speak and not even at the point to try and get into recovery. You need to restore download mode first. If you have fastboot properly working (not going to explain that, look it up, there is plenty of info about that on here and other sites), then you can do what I did. (Although from what other people are saying if you have a D855 it will have a locked bootloader and this won't work, I cant tell you about that because I don't have one and haven't played around with one). Anyway, if you have fastboot working properly (read my first post about how it can be working as long as the phone is responsive, even if you don't get back the "devices comman", you may need to play around with the drivers to get this to work) then you need to obtain an laf.img from somwhere. I found a complete set of .img's for my model somewhere (don't remember if it was on this site or somewhere else). It took a lot of searching, but I'm sure you can find one. Once you have that and the working fastboot then run the command "fastboot boot [location of your laf.img]laf.img"
GOOD LUCK!!!

itsbighead said:
That's awesome to hear. It seems that booting the laf partition does not actually work under fastboot mode for D855 variants which is why I thought it wouldn't work for you
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
That's interesting...do you have any idea why that would be? Is it a locked bootloader like someone else mentioned? (I don't know much about the D855 model, never got to play with one). Maybe there is a workaround we can come up with...

itsbighead said:
Unfortunately its hard bricked and the repair center will know that you tampered with it. The nature of the LG bootloader makes it so that you cant write or boot any images using fastboot.
What was wrong with your method is, when you downgrade to KitKat android bootloader you have to also downgrade the bootloader, laf and recovery partition or other wise it bricks. You should have downgraded your phone using LG Flash Tool to KitKat and then root and install whatever you wanted
In your case the version mismatch between your aboot, bootloader and laf partition is the reason why it doesnt work
Click to expand...
Click to collapse
I realized the problem with the mismatched aboot after the fact... ironically it all worked out because after all of this I am now back to the original kitkat and can just root and flash as you said lol.

Complete Fix Guide
http://forum.xda-developers.com/spr...y-download-t3053985/post60106965#post60106965

Can you please post where you got your laf file? I have the same problem :crying:

MWGiants said:
I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
UPDATE: FIXED IT!!!! What I did was use fastboot to load up an laf.img that I was able to download from someone on here (took a lot of searching to find an laf.img). Even though I was unable to flash the laf (tried a bunch of times and it always gave me that "failure to write" error right at the end), I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. Bear in mind that I still wouldn't get the serial number back from "fastboot devices" so if you're having this problem and it doesn't give you the serial number back it's ok. Just try to run some fastboot commands and see if you get a response on the phone, that way you'll know if fastboot is working. Anyway, I was then able to restore it via LGFlashtool. So yup, its fixable!
Click to expand...
Click to collapse
can you please help. adb shows my device and fastboot wont. when i type in fastboot devices it doesnt show anything. tried to run commands but it always gets stuck on waiting for device..

MWGiants said:
(Although from what other people are saying if you have a D855 it will have a locked bootloader and this won't work,
Click to expand...
Click to collapse
What to do with D855 than, my friend have D855 and it's stcked in fastboot mode, doesn't allow to flash anything?

lg g3 f410 stuck at fastboot
i tried the solution it didnot work. phone accepts the cmds but remain stuck at fastboot any other method?

i can't enter to downloding mode from my lg g3 d855

Hello guys
I have lg g3 d855
I can't make format or enter to downloding mode or recovery mode
When i want do it i have black screen
(fastboot mode started)
I try to search for my problem but i can't find
Anyone can help me pleas
Thanks

kamil.syria said:
Hello guys
I have lg g3 d855
I can't make format or enter to downloding mode or recovery mode
When i want do it i have black screen
(fastboot mode started)
I try to search for my problem but i can't find
Anyone can help me pleas
Thanks
Click to expand...
Click to collapse
How did that happen?
Please send a photo

Thanks for reply
I dont know how i send photos
When i try to enter recovery mode or downloding mode
I have black secreen with this msg at up
(fastboot mode started)

Tutorial| Fixing "Fastboot mode started"
http://forum.xda-developers.com/lg-g3/help/tutorial-fixing-fastboot-mode-started-t2995854

redduc900 said:
Tutorial| Fixing "Fastboot mode started"
http://forum.xda-developers.com/lg-g3/help/tutorial-fixing-fastboot-mode-started-t2995854
Click to expand...
Click to collapse
I saw this post but I don't understand

redduc900 said:
Tutorial| Fixing "Fastboot mode started"
http://forum.xda-developers.com/lg-g3/help/tutorial-fixing-fastboot-mode-started-t2995854
Click to expand...
Click to collapse
I make same every thing ok
But When I write fastboot reboot my phone turn off
Not work:crying:

Anyone help me please

fastboot and download mode problem

Hi
i have a problem with my G4 H815, i can't access fastboot mode even throw adb commands or throw quickboot apk the phone restarts immediately
the same thing with download mode it restart few 3 or 4 seconds after showing download mode screen
anyone can help please
thanks in advance

Same Here... Any Idea ?
I actuallay am in the same situation with my brand new LG G4 H815 that I have just unlocked.
Everytime I try to get access to the fastboot mode, I get confirmation that my bootloader is unlocked (message on screen),then directly to a normal boot, so I can't flash anything.
If anyone has an idea to solve that it would be much appreciated.
smich_ayane said:
Hi
i have a problem with my G4 H815, i can't access fastboot mode even throw adb commands or throw quickboot apk the phone restarts immediately
the same thing with download mode it restart few 3 or 4 seconds after showing download mode screen
anyone can help please
thanks in advance
Click to expand...
Click to collapse

Same thing here. I can only enter fastboot from an adb shell, but today's CM14 update doesn't boot so no ADB shell, now I'm stuck with a phone that can't fastboot.
Moreover, CM14 recovery just displays "erasing' then reboots.

Secure Booting Error! Cause: boot certification verify

Good day mate. My brick phone is F460S variant. I got this error when I tried to go back to Lollipop using Lg flash tool 2014, it got stuck on 5% and remove usb cable and start again, after that I got this error Secure Booting Error! Cause: boot certification verify.
No download mode
No recovery
anyone can help me please?:crying:

anyone?

You have triggered the downgrade QFUSE. There is nothing you can do apart from trying to unbrick it like it was dead, but that's not guaranteed to work. You should have researched more before attempting this. My prototype doesn't have a QFUSE, so i am free to downgrade via TOT to kitkat or lollipop.

西村大一 said:
You have triggered the downgrade QFUSE. There is nothing you can do apart from trying to unbrick it like it was dead, but that's not guaranteed to work. You should have researched more before attempting this. My prototype doesn't have a QFUSE, so i am free to downgrade via TOT to kitkat or lollipop.
Click to expand...
Click to collapse
What does QFUSE mean?

anmino said:
What does QFUSE mean?
Click to expand...
Click to collapse
I second you on this. I just uninstalled MultiROM and got the secure booting error. Depending on the ROM you have, find a bumped kernel and flash it. Most of the kernels on XDA are pre-bumped unless the developer states so. Boot into recovery, tutorials on the internet, then flash the kernel and voila.

if you can use twrp or you're able to flash, use mr_bump.zip: https://mega.nz/#!DNwhRBrK!Ki6zIzXca0KjPShi6L2oaCYIr0CkmH8sEymEt-0Q3ys
oh sorry, I didn't see "no recovery".

HardStyl3r said:
if you can use twrp or you're able to flash, use mr_bump.zip: https://mega.nz/#!DNwhRBrK!Ki6zIzXca0KjPShi6L2oaCYIr0CkmH8sEymEt-0Q3ys
oh sorry, I didn't see "no recovery".
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Click to collapse
Yes, no DOWNLOAD mode and RECOVERY mode.. Anyone have an idea how to fix this?

anyone?

Hello, i got the same probleme and i've trying a lot of things but not resolved..
My phone is a LG G3 Beat F470s..
Please help us..

Dowblnload adb and fastboot drivers
Download laf.img for your device
Download LG Drivers
Get you G3 to fastboot mode. Hold volume up and connect it to PC
Open fastboot and adb folder in PC, ctrl+shift+right click and open cmd. Type fastboot devices...if ur device is listen then proceed, if not u did not do something cotrectly...if yes just flash laf img to your G3 and voila

I remember me that I was in the same situation:
No TWRP, no download mode, so i have use in pat this thread:
https://forum.xda-developers.com/showthread.php?t=1752270
And an other that i haven't found again (xda thread), in some lines:
=> download the last img file from: https://eu.dl.twrp.me/d855/
=> no download mode available so no possibility to flash manually twrp file from an LG Flash Tool
==> so setup an adb connexion to the phone, cp command to copy the img file on the sdcard or where you want
=> command: "flash recovery twrp-2.8.x.x-xxx.img" (https://www.xda-developers.com/how-to-install-twrp/
=> if it's as worked, you could reboot manually in twrp, make again the partitions if needed and flash any ROM.