Develop Bugs

Tutorial| Fixing "Fastboot mode started"

I've saw a lot of these posts and I also had the same Issue.
first of all I'm not taking any responsible for this, but it worked for me so.. you can at least try if you have no option left.
please note thatYOU WILL LOSE EVERYTHING on the internal storage of your LG G3!
IF YOU DON'T HAVE ACCESS TO DOWNLOAD MODE :
Please get yourself the right LAF file for your phone and insert it into the adb.exe and the fastboot.exe folder (if you don't know what I talk about please download Android SDK platform)
press Ctrl+Shift and right click inside the folder and choose Open Command window here (http://img5013.photobox.co.uk/11895...2cd987792512dcafe1c9acf628a3ef5b3a604bc5f.jpg)
Now at the CMD window that opened Type :
fastboot erase recovery
PLESAE MAKE SURE YOU DOWNLOADED THE RIGHT LAF FILE FOR YOUR PHONE before attempting this (at the same android version)
fastboot erase laf
fastboot flash laf laf.img
Click to expand...
Click to collapse
If you can't find the LAF file for your phone you'll have to Extract it from the KDZ file using this Tool http://forum.xda-developers.com/showthread.php?t=2600575
Now you can accesses the download mode by restarting the phone.
Take the battery and the Sync cable out
while pressing the +Vol button insert the battery and the cable while continuing holding it
IF YOU HAVE ACCESS TO DOWNLOAD MODE :
Please download the TOT and .Dll files specifically for your phone from here: http://downloadandroidfiles.org/Files/LG G3/Stock Files/
after that follow this video and you're all good :
http://www.youtube.com/watch?v=1VVms7SdM04

SaharLevi said:
I've saw a lot of these posts and I also had the same Issue.
first of all I'm not taking any responsible for this, but it worked for me so.. you can at least try if you have no option left.
please note thatYOU WILL LOSE EVERYTHING on the internal storage of your LG G3!
IF YOU DON'T HAVE ACCESS TO DOWNLOAD MODE :
Please get yourself the right LAF file for your phone and insert it into the adb.exe and the fastboot.exe folder (if you don't know what I talk about please download Android SDK platform)
press Ctrl+Shift and right click inside the folder and choose Open Command window here (http://img5013.photobox.co.uk/11895...2cd987792512dcafe1c9acf628a3ef5b3a604bc5f.jpg)
Now at the CMD window that opened Type :
If you can't find the LAF file for your phone you'll have to Extract it from the KDZ file using this Tool http://forum.xda-developers.com/showthread.php?t=2600575
Now you can accesses the download mode by restarting the phone.
Take the battery and the Sync cable out
while pressing the +Vol button insert the battery and the cable while continuing holding it
IF YOU HAVE ACCESS TO DOWNLOAD MODE :
Please download the TOT and .Dll files specifically for your phone from here: http://downloadandroidfiles.org/Files/LG G3/Stock Files/
after that follow this video and you're all good :
http://www.youtube.com/watch?v=1VVms7SdM04
Click to expand...
Click to collapse
Am getting this ERROR :
D:\--- MOBILE\Android\android\platform-tools>fastboot erase laf
erasing 'laf'...
FAILED (remote: failed to erase partition
)
finished. total time: 5.035s
Click to expand...
Click to collapse

Have you Installed the LG G3 Drivers?
Does your windows recognize it ?
If not please download http://tool.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=UW00120120425

SaharLevi said:
I've saw a lot of these posts and I also had the same Issue.
first of all I'm not taking any responsible for this, but it worked for me so.. you can at least try if you have no option left.
please note thatYOU WILL LOSE EVERYTHING on the internal storage of your LG G3!
IF YOU DON'T HAVE ACCESS TO DOWNLOAD MODE :
Please get yourself the right LAF file for your phone and insert it into the adb.exe and the fastboot.exe folder (if you don't know what I talk about please download Android SDK platform)
press Ctrl+Shift and right click inside the folder and choose Open Command window here (http://img5013.photobox.co.uk/11895...2cd987792512dcafe1c9acf628a3ef5b3a604bc5f.jpg)
Now at the CMD window that opened Type :
If you can't find the LAF file for your phone you'll have to Extract it from the KDZ file using this Tool http://forum.xda-developers.com/showthread.php?t=2600575
Now you can accesses the download mode by restarting the phone.
Take the battery and the Sync cable out
while pressing the +Vol button insert the battery and the cable while continuing holding it
IF YOU HAVE ACCESS TO DOWNLOAD MODE :
Please download the TOT and .Dll files specifically for your phone from here: http://downloadandroidfiles.org/Files/LG G3/Stock Files/
after that follow this video and you're all good :
http://www.youtube.com/watch?v=1VVms7SdM04
Click to expand...
Click to collapse
hi, just one nooby question. where are the adb.exe and the fastboot exe folders?

Hi Mate, It's not noobie at all.
You need to download the Android Debug Bridge (ADB) from this Link :http://developer.android.com/sdk/index.html
Ticket the platform-tools you don't need the rest
Or you can have the easy way and Download it from here: http://forum.xda-developers.com/showthread.php?t=2588979
Or maybe you don't know where are the specific folder in which case go to where you installed it. mine is at C:\Users\Sahar\platform-tools
And on the way download the LG G3 drivers from LG download center or from this link: http://tool.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=UW00120120425

thanks amigo! I'll check it out.

@SaharLevi
Here's the fix Quick and easy
need to have fastboot, I used ubuntu can install with sudo apt-get install android-tools-fastboot
info on fastboot
[TOOL] [WINDOWS] ADB, Fastboot and Drivers - 15 seconds ADB Installer
also need recovery.img, I used the lastest twrp
In terminal
fastboot boot recovery.img
this will boot your phone with the img on your computer.
in recovery restore or install a good boot or kernel.
your phone should be good to go after that.
I had my phone fixed in about 5 min, I really should not play around with boot partition.
Also should be able to flash boot if you have a good one,
fastboot flash boot boot.img

zakiyy said:
Am getting this ERROR :
Click to expand...
Click to collapse
man i am getting the same error! says something about the mmc on the phone not being able to erase it or whatever

zakiyy said:
Am getting this ERROR :
Click to expand...
Click to collapse
Timahthee said:
man i am getting the same error! says something about the mmc on the phone not being able to erase it or whatever
Click to expand...
Click to collapse
if you have fastboot mode you probably already erased the laf partition and you can't erase what you don't have. just continue

I have a weird problem, i'm in fastboot, and my laptop sees the phone, but none of the fastboot commands work. They get echoed on the screen and appear to be working but they don't do anything. I've tried flashing, rebooting... pretty much everything, and nothing happens.

bartcoop2 said:
I have a weird problem, i'm in fastboot, and my laptop sees the phone, but none of the fastboot commands work. They get echoed on the screen and appear to be working but they don't do anything. I've tried flashing, rebooting... pretty much everything, and nothing happens.
Click to expand...
Click to collapse
can you show the commands you typed?

jcfunk said:
can you show the commands you typed?
Click to expand...
Click to collapse
I navigate into a folder with all my img files and then tried a few things:
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot boot boot.img
fastboot flash laf laf.img
I've also tried to erase a few times, and even reboot, and nothing happens, even though it says on the lg screen that it's rebooting.

bartcoop2 said:
I navigate into a folder with all my img files and then tried a few things:
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot boot boot.img
fastboot flash laf laf.img
I've also tried to erase a few times, and even reboot, and nothing happens, even though it says on the lg screen that it's rebooting.
Click to expand...
Click to collapse
try
adb fastboot flash recovery [located recovery file]
or
./adb fastboot flash recovery [located recovery file]

KingOfDope said:
try
adb fastboot flash recovery [located recovery file]
or
./adb fastboot flash recovery [located recovery file]
Click to expand...
Click to collapse
I'm assuming you meant just fastboot, adb fastboot just prints out help.
It says:
Code:
target reported max download size of 2147483648 bytes
sending 'recovery' (11496 KB)...
OKAY [ 0.362s]
writing 'recovery'...
and on the phone it says [7164300] fastboot: flash:recovery
But nothing happens. It's as if fastboot is broken.

bartcoop2 said:
I navigate into a folder with all my img files and then tried a few things:
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot boot boot.img
fastboot flash laf laf.img
I've also tried to erase a few times, and even reboot, and nothing happens, even though it says on the lg screen that it's rebooting.
Click to expand...
Click to collapse
Type from folder with recovery.img
fastboot boot recovery.img
if it a bumped recovery, it should boot into recovery. Then you should be able to restore a backup

jcfunk said:
Type from folder with recovery.img
fastboot boot recovery.img
if it a bumped recovery, it should boot into recovery. Then you should be able to restore a backup
Click to expand...
Click to collapse
I've tried that, i think my fastboot is somehow corrupt, i guess i have a hard-brick, i hope LG will replace it.
Thanks for your help

bartcoop2 said:
I've tried that, i think my fastboot is somehow corrupt, i guess i have a hard-brick, i hope LG will replace it.
Thanks for your help
Click to expand...
Click to collapse
also have you tried a different usb cable? Mine stop working after a month. Only charges phone but won't connect to computer
Sent from my tf700t using Tapatalk

jcfunk said:
also have you tried a different usb cable? Mine stop working after a month. Only charges phone but won't connect to computer
Sent from my tf700t using Tapatalk
Click to expand...
Click to collapse
Yeah i tried, no go

bartcoop2 said:
I.
Click to expand...
Click to collapse
I have yoir problem,too.Have you find out how to fix it?

akaHardison said:
I have yoir problem,too.Have you find out how to fix it?
Click to expand...
Click to collapse
i find it

help fastboot mode started on f400l

please help me i got into fastboot mode started
and i dont manage to enter downlod mode
i can do enything
plaese help

aboo050 said:
please help me i got into fastboot mode started
and i dont manage to enter downlod mode
i can do enything
plaese help
Click to expand...
Click to collapse
extract laf.img from your stock firmware or the one u are running and run this command in fastboot from command prompt
Code:
fastboot boot laf.img
you will be in download mode. Not a big issue dont worry.

Pannam said:
extract laf.img from your stock firmware or the one u are running and run this command in fastboot from command prompt
Code:
fastboot boot laf.img
you will be in download mode. Not a big issue dont worry.
Click to expand...
Click to collapse
to understand
i plug the phone on fast boot to the computer then i run the command prompt?
whare do i need to put the laf file?

aboo050 said:
to understand
i plug the phone on fast boot to the computer then i run the command prompt?
whare do i need to put the laf file?
Click to expand...
Click to collapse
go here http://www.theandroidsoul.com/lg-g3-fastboot-mode-61660/
you may have knowingly or unknowingly done these steps thats why your download mode is missing. Google on how to extract the laf image put it in your ADB folder . Then run the command i posted above when in fastboot mode, the screen will change from fastboot to download mode . then reflash stock rom . everything will be fine.

ok i got into download mode but now i donr manage to flash the stock rom
ok i got into download mode but now i donr manage to flash the stock rom
what do i need to do to make it work?
in the driver its show "lge android mtp device failed"

please help me
sorry i'm not good at english . All i want to tell u is my Lg g3 f400l stuck into fastboot mode started and i can't do anything . and when the plug my phone to pc it said #fastboot : processing commands ... So how can i because it's stuck into fastboot mode

LG G3 Bricked / No ADB / No download mode / No recovery

Hi,
Since the rom ( http://forum.xda-developers.com/lg-g3/development/rom-resurrection-remix-lp-v5-5-5-t3198675 ) of my phone crashed. After reboot, the phone is blocked on LG logo. Now, i can't enter in recovery mode (or in the download mode) and when I start my phone, it's fixed on the LG for 5 to 10 minutes, and after that it goes to a terminal (started fastboot mode).
I have read several tutorials to use fastboot to flash the recovery to reinstall a rom, but i have a error when i tried to erase or flash the recovery partition.
I look on my phone, and this error appear : "failed to send erase grp start address".
what can i do to fix this error ?
Thanks.

up please

Use the "boot" command instead of "flash" and it should boot up into recovery or downloadmode, depending on which file you use

I tried but i am stucked on teamwin logo.
Which file do i use for download mode ?

Hard to tell, there are some laf.img files floating around on xda and google or even better, extract the laf.img from the stock kdz depending on your android version (for instance you flashed 6.0 you pick the 30b kdz and extract it with the firmware extraction tool)
I would suggest you to and try to use the boot command with them..
Be carefull, do not use the flash command until you found one that boots into downloadmode properly or you can loose your fastboot mode aswell
From then on you should be able to boot into the downloadmode and flash a new firmware via the lg flashtool

I need help please. What can i do to re install a rom ?

Does your PC recognise the port.?
I found tutorial under bender_007 signature. People seemed happy with tool.
http://www.androidbrick.com/unbrick-recover-your-dead-lg-g3-g2-all-variants/
Doesn't hurt to read and ask some questions.

no i can't connect my phone with port. I think, i nned to correct the error with fastboot. (remote : failed to erase partition)

th0was said:
no i can't connect my phone with port. I think, i nned to correct the error with fastboot. (remote : failed to erase partition)
Click to expand...
Click to collapse
Can you elaborate, how exactly your phone crashed, it is very unlikely that it will mess all the partitions just by crashing the rom?

The rom crushed twice, and now i can not access to recovery to install a new rom. I only have access to the fastboot command. Adb not working.
I tried to boot on recovery.img, but it's not working.
Thank for your help.
Regards,

Help please ?

Today i can connected to my phone with ADB when i tape this fastboot command : fastboot boot ./recovery.img.
I can too go into my phone as root with adb command : adb shell.
i tried to push flash_image on my phone and use it, but it donesn't work.
how can i flash my phone with adb command ?

[Need urgent help] g3 d855 showing fastboot mode started

my lg g3 d855 showing fastboot mode startednot going to download mode or recovery mode.just showing that fastboot mode started.not able to do anything.i search google for solution but dident get anything till now.please help.
Thanks in advance
Sorry for english.

Its a 32gb version from hongkong.

anurag061 said:
Its a 32gb version from hongkong.
Click to expand...
Click to collapse
You need to find a rom unpack it and do
fastboot erase laf
fastboot flash laf laf.img
Where laf.img is the laf partition fomr that stock rom you unpacked.
EDIT: VERY IMPORTANT I FORGOT:
You need to download an image that is the same as the version of firmware you are running now. Or if you can enter download mode and flash to stock.

VS985 Hard Bricked ..Stuck On LG Logo...no download..no recovery

Hi , Guys today my lg g3 verizon got hard bricked and stuck on lg logo...
yesterday i delet the download mode to acces to fastboot mode in attemp to install twrp and i failled ,after hours i replaced the many system apps (hotspot.camera...) but the phone stuck on the lg logo....
So, I only have access to fastboot mode ..and the system recovery((not custom recovery))
i Try to flash laf.img via fastboot but on computer adb stuck on
target reported max download size of 2147483648 bytes
sending 'laf' (23040 KB)...
OKAY [ 0.724s]
writing 'laf'...
And The phone show : [15260] fastboot: flash:laf
-another example :
fastboot erase recovery
erasing 'recovery'...
- ok,guys i need a solution to get download mode and unbrick my phone and thanks in advance

Hamza058 said:
- ok,guys i need a solution to get download mode and unbrick my phone and thanks in advance
Click to expand...
Click to collapse
One of these will work for you. I can't say which one because I don't know what your PC is seeing your phone as...
Test point(if your phone shows up as Qualcomm 9008 or your are stuck and have no download mode because your partitions are screwed up): https://forum.xda-developers.com/verizon-lg-g3/general/how-to-hardbrick-guide-using-test-t3276928
Last resort debug kit(last resort - you're not here yet, but it's a good reference in case you're fkd): https://forum.xda-developers.com/verizon-lg-g3/general/r-t-bs-verizon-lg-g3-vs985-resort-t3426667
Tot restore(if you can't get download mode this won't work, but this is what you want to get back to full stock): https://forum.xda-developers.com/verizon-lg-g3/general/restore-verizon-to-stock-t2827878
Kdz restore(if you can't get download mode this won't work):
https://forum.xda-developers.com/verizon-lg-g3/general/guide-flash-to-stock-10b-kdz-method-t2928140
*link to vs985 files...
https://www.androidfilehost.com/?w=files&flid=35484
*link to g3 files... http://downloads.codefi.re/autoprime/LG/LG_G3
Once you get a functional phone again: tot back to 10b, root using the stump root apk, install rashr or flashify app to install recovery, download a bumped twrp IMG file from the twrp.me site, and use one of those apps to install it as a recovery image. No need to do fastboot and all of that, just be lazy and use the apps instead.

startswithPendswithOOH said:
One of these will work for you. I can't say which one because I don't know what your PC is seeing your phone as...
Test point(if your phone shows up as Qualcomm 9008 or your are stuck and have no download mode because your partitions are screwed up): https://forum.xda-developers.com/verizon-lg-g3/general/how-to-hardbrick-guide-using-test-t3276928
Last resort debug kit(last resort - you're not here yet, but it's a good reference in case you're fkd): https://forum.xda-developers.com/verizon-lg-g3/general/r-t-bs-verizon-lg-g3-vs985-resort-t3426667
Tot restore(if you can't get download mode this won't work, but this is what you want to get back to full stock): https://forum.xda-developers.com/verizon-lg-g3/general/restore-verizon-to-stock-t2827878
Kdz restore(if you can't get download mode this won't work):
https://forum.xda-developers.com/verizon-lg-g3/general/guide-flash-to-stock-10b-kdz-method-t2928140
*link to vs985 files...
https://www.androidfilehost.com/?w=files&flid=35484
*link to g3 files... http://downloads.codefi.re/autoprime/LG/LG_G3
Once you get a functional phone again: tot back to 10b, root using the stump root apk, install rashr or flashify app to install recovery, download a bumped twrp IMG file from the twrp.me site, and use one of those apps to install it as a recovery image. No need to do fastboot and all of that, just be lazy and use the apps instead.
Click to expand...
Click to collapse
Thanks so much MAn,I was Able To Flash 10B,But There a way to flash 35B Kdz Without losing twrp??