Database Users

[Q] Stuck on Fastboot (Unable to go to download mode)

I have an LG G2 AT&T D800.
After I rooted my phone successfully, I also flash a custom recovery successfully.
After I did that, I wipe out my data / cache.
And i tried to install a ROM and Google Apps.
I rebooted my phone and I'm stuck with " Fast boot mode started "
I had download mode working but i accidentally made it stop working after i did CMS88168 steps from this page.
http://forum.xda-developers.com/showthread.php?t=2477595
Now I don't have my download mode starting to work and I have no clue on how to fix my phone.
Please help.

alvingaoat said:
...
I rebooted my phone and I'm stuck with " Fast boot mode started "
...
Now I don't have my download mode starting to work and I have no clue on how to fix my phone.
Click to expand...
Click to collapse
Look here
It's for the F320 variants but there is also a link to search for other variant files.

Also just in case you are unable to do what phoost suggested, what i did was keep tr ying to get into recovery, the lg logo would blink fast, but you just have to keep tr ying, and i finally got it and reflashed my rom and its been fine ever since...i did get scared tho, but my g2 is only 4 days old right now, so i can always return and get another, but just do what i said

help
MasterSe7en said:
Also just in case you are unable to do what phoost suggested, what i did was keep tr ying to get into recovery, the lg logo would blink fast, but you just have to keep tr ying, and i finally got it and reflashed my rom and its been fine ever since...i did get scared tho, but my g2 is only 4 days old right now, so i can always return and get another, but just do what i said
Click to expand...
Click to collapse
My lg g2 is stuck in fastboot mode started/usd start() an I press the buttons to go to recovery mode but recovery mode just flashes on the screen an it goes back to fastboot mode screen

larryb723 said:
My lg g2 is stuck in fastboot mode started/usd start() an I press the buttons to go to recovery mode but recovery mode just flashes on the screen an it goes back to fastboot mode screen
Click to expand...
Click to collapse
I am having this issue. Has anyone figured out how to fix? I need download mode to return to stock.

Droc1983 said:
I am having this issue. Has anyone figured out how to fix? I need download mode to return to stock.
Click to expand...
Click to collapse
i got the same problem here when flashing the slimkat.
fastboot is like adb sideload.
when you see the usb command, you need to plug the phone to the PC to sync them.

This happened to me a while back the link in post two is how I solved it. You just need to find the laf.img for your model, put it in the same folder as adb and run the adb commands in the tutorial. You might have to change the directory in cmd prompt to where adb is located. Once the laf is successfully flashed you can boot into download mode and flash the kdz for your model.

Swizzle82 said:
This happened to me a while back the link in post two is how I solved it. You just need to find the laf.img for your model, put it in the same folder as adb and run the adb commands in the tutorial. You might have to change the directory in cmd prompt to where adb is located. Once the laf is successfully flashed you can boot into download mode and flash the kdz for your model.
Click to expand...
Click to collapse
I tried this but it starts download mode but then goes to fastboot. I was trying to keep download mode. I used the laf.img in the the link you posted. I'm on verizon lg g2 is that the right laf.img?
***Got it thanks***

In the link above that is for the Korean g2 I believe. If I remember correctly there's a link to other img files in his thread. You might also consider flashing the proper boot.img as well. It was a while ago that this happened so I don't recall exactly but if you flash the Verizon boot.img and laf.img you should be good.

Phoost said:
Look here
It's for the F320 variants but there is also a link to search for other variant files.
Click to expand...
Click to collapse
that link is not working

[Q] Fastboot mode, no download mode, bricked autorec Videotron LG G2 D801 D801V20E

I've done my homework but haven't found how others fix this issue.
Sucessfully rooted the Videotron LG G2 D801
.
The mistake: Autorec my LG G2 D801 with autorec D801 version unaware that Canadian D801 must be autorec'd by autorec D803 version.
Status of phone: Boots shows LG logo and goes immediately to black screen 'Fastboot mode started'.
Tried: Download mode attempts bring up the download mode logo for a sec and immediately the phone goes back to Fastboot mode started screen.
User rickthewood2 reported he had the same issue and was provided a fix. http://forum.xda-developers.com/showthread.php?t=2723687.
I tracked him on a french forum where he reported that XDA guy compiled a file for him that unbricked this issue as he was having a hard time with entering commands. He also specified that the trick was to repair his download mode with a laf.img file ... once download mode was repaired he went back to stock rom. This is the link of his post made in french http://www.phonandroid.com/forum/ecran-noir-apres-autorec-t90109.html
Please assist.

Kybby said:
I've done my homework but haven't found how others fix this issue.
Sucessfully rooted the Videotron LG G2 D801
.
The mistake: Autorec my LG G2 D801 with autorec D801 version unaware that Canadian D801 must be autorec'd by autorec D803 version.
Status of phone: Boots shows LG logo and goes immediately to black screen 'Fastboot mode started'.
Tried: Download mode attempts bring up the download mode logo for a sec and immediately the phone goes back to Fastboot mode started screen.
User rickthewood2 reported he had the same issue and was provided a fix. http://forum.xda-developers.com/showthread.php?t=2723687.
I tracked him on a french forum where he reported that XDA guy compiled a file for him that unbricked this issue as he was having a hard time with entering commands. He also specified that the trick was to repair his download mode with a laf.img file ... once download mode was repaired he went back to stock rom. This is the link of his post made in french http://www.phonandroid.com/forum/ecran-noir-apres-autorec-t90109.html
Please assist.
Click to expand...
Click to collapse
that is because the download mode partition is broken because it is the wrong model; if you download the correct model of autorec you can use WinRAR/7zip to get the laf.img from the assets folder and then flash it using adb; I know the process to flash the images through fastboot as long as your device is recognized by your pc I can help

a new hope
XxZombiePikachu said:
that is because the download mode partition is broken because it is the wrong model; if you download the correct model of autorec you can use WinRAR/7zip to get the laf.img from the assets folder and then flash it using adb; I know the process to flash the images through fastboot as long as your device is recognized by your pc I can help
Click to expand...
Click to collapse
Very good files Extracted I see the laf I need to use. So are you saying if pc sees the device I can flash using fastboot but if it doesn't I will have to flash via ADB... right? I'm such a newbie.

Kybby said:
Very good files Extracted I see the laf I need to use. So are you saying if pc sees the device I can flash using fastboot but if it doesn't I will have to flash via ADB... right? I'm such a newbie.
Click to expand...
Click to collapse
it's all done using adb; fastboot is the mood you are in and with adb is how we look for device and send the commands
after going into your adb folder(android sdk>platform-tools or ioroot folder) you make sure to copy the laf image into it and then after opening cmd window and cd into the adb folder you use the adb devices command if after starting daemon it show your device in fastboot mode then you do the following:
fastboot erase laf
fastboot flash laf laf.img
actually you can flash all the partitions using fastboot(the images inside assets folder) and then doing a simple reboot should boot your device but if it doesn't then you just have to boot into download mode:
fastboot erase aboot
fastboot flash aboot aboot.img
fastboot erase boot
fastboot flash boot boot.img
fastboot erase laf
fastboot flash laf laf.img
fastboot erase recovery
fastboot flash recovery recovery.img
with either method when done flashing correct files use:
fastboot reboot
and your device will reboot; make sure that you flash all correct files before rebooting and then if device boots normally you will have custom recovery and be back on the stock rom if by any chance it doesn't boot then you can just boot into download mode(hold volume up while plugging in usb cable to phone/pc) and then just kdz/tot back to stock
Best of Luck :fingers-crossed:

Awesome Just Awesome!!
XxZombiePikachu said:
it's all done using adb; fastboot is the mood you are in and with adb is how we look for device and send the commands
after going into your adb folder(android sdk>platform-tools or ioroot folder) you make sure to copy the laf image into it and then after opening cmd window and cd into the adb folder you use the adb devices command if after starting daemon it show your device in fastboot mode then you do the following:
fastboot erase laf
fastboot flash laf.img
actually you can flash all the partitions using fastboot(the images inside assets folder) and then doing a simple reboot should boot your device but if it doesn't then you just have to boot into download mode:
fastboot erase aboot
fastboot flash aboot.img
fastboot erase boot
fastboot flash boot.img
fastboot erase laf
fastboot flash laf.img
fastboot erase recovery
fastboot flash recovery.img
with either method when done flashing correct files use:
fastboot reboot
and your device will reboot; make sure that you flash all correct files before rebooting and then if device boots normally you will have custom recovery and be back on the stock rom if by any chance it doesn't boot then you can just boot into download mode(hold volume up while plugging in usb cable to phone/pc) and then just kdz/tot back to stock
Best of Luck :fingers-crossed:
Click to expand...
Click to collapse
Dude, I read those instructions from all over the net but I guess I needed this divine intervention. You have no idea how greatful I am for your assistance. Current situation: Download mode is back and LGmobile support tool is doing its download thing for stock rom.
I have to add that I was receiving an error message from CMD prompt for command:
fastboot flash laf.img
I replaced that by:
fastboot flash laf laf.img
and was abble to finish the rest.
Good safe rooting to all the rooters!
Kybby
PS: too bad I can only thank you once on this one...

Kybby said:
Dude, I read those instructions from all over the net but I guess I needed this divine intervention. You have no idea how greatful I am for your assistance. Current situation: Download mode is back and LGmobile support tool is doing its download thing for stock rom.
I have to add that I was receiving an error message from CMD prompt for command:
fastboot flash laf.img
I replaced that by:
fastboot flash laf laf.img
and was abble to finish the rest.
Good safe rooting to all the rooters!
Kybby
PS: too bad I can only thank you once on this one...
Click to expand...
Click to collapse
Glad it all worked out and thanks for pointing that out for some reason I always forget that fastboot needs the partition name before the image name (trust me it isn't first time I make the mistake but we ain't perfect)
If you decide to go at it again make sure to use correct version of autorec and enjoy your device :high-five:
Sent from my Pikachu powered LG D800

Are you kidding me?!?!
XxZombiePikachu said:
Glad it all worked out and thanks for pointing that out for some reason I always forget that fastboot needs the partition name before the image name (trust me it isn't first time I make the mistake but we ain't perfect)
If you decide to go at it again make sure to use correct version of autorec and enjoy your device :high-five:
Sent from my Pikachu powered LG D800
Click to expand...
Click to collapse
You're not serious right? Tell me you're joking!
With ppl like you around I'm no longer worried. This was a learning experience.
Guess what.... G2 now rooted with correct autorec version... TWRP is enabled and BusyBox is in da house too. Next step... create a backup after deleting all these spying resources hungry LG default apps and then... ENABLE 4K video capture!
Amigo, I told you You just made this dude's week.
By the way if you think I forgot something importand pls advise. I read somewhere it was a good thing to save efs or something.

Kybby said:
You're not serious right? Tell me you're joking!
With ppl like you around I'm no longer worried. This was a learning experience.
Guess what.... G2 now rooted with correct autorec version... TWRP is enabled and BusyBox is in da house too. Next step... create a backup after deleting all these spying resources hungry LG default apps and then... ENABLE 4K video capture!
Amigo, I told you You just made this dude's week.
By the way if you think I forgot something importand pls advise. I read somewhere it was a good thing to save efs or something.
Click to expand...
Click to collapse
Yea backing up efs is important since that is where your imei is and if something happens to it you can restore it using efs backup, am not near pc right now to link the guide will update when home
update:
efs backup with ioroot
efs backup guide
Sent from my Pikachu powered LG D800

OK buddy. Was I supposed to do this before Root or its OK to do now?

Kybby said:
OK buddy. Was I supposed to do this before Root or its OK to do now?
Click to expand...
Click to collapse
It is okay to do it now; if I remember correctly it is something that can only be done while rooted
Sent from my Pikachu powered LG D800

Awesone... Friday evenings! I'll definitely do it later tonight and will update you on it. Thanks a bunch for all the kind help

Hi I've been studying this thread because I have the same problem--used the wrong version of autorec and now my Verizon LG G2 is stuck in fastboot. I've downloaded the correct version of autorec but I do not understand how to open the apk to access the assets file. I right click but get no option to open or extract. Can anyone help me, or direct me to a link where the laf.img files are stored? Thanks!

davidargent0628 said:
Hi I've been studying this thread because I have the same problem--used the wrong version of autorec and now my Verizon LG G2 is stuck in fastboot. I've downloaded the correct version of autorec but I do not understand how to open the apk to access the assets file. I right click but get no option to open or extract. Can anyone help me, or direct me to a link where the laf.img files are stored? Thanks!
Click to expand...
Click to collapse
Hello David, sorry to hear you're in the same mess. Sorry I just got to read your message. Please tell me if you still need assistance. I will do my best to get you out of it...

Kybby said:
Hello David, sorry to hear you're in the same mess. Sorry I just got to read your message. Please tell me if you still need assistance. I will do my best to get you out of it...
Click to expand...
Click to collapse
Thanks, but I took it to a shop that borked it completely. Just sold it on the Bay. Picked up a Moto X off Craig's...lol...oh well, the Moto is pretty cool and since it's running 4.4.4 I can't do anything to it until someone figures out how to unlock the bootloader...probably for the best...

Kybby said:
I've done my homework but haven't found how others fix this issue.
Sucessfully rooted the Videotron LG G2 D801
.
The mistake: Autorec my LG G2 D801 with autorec D801 version unaware that Canadian D801 must be autorec'd by autorec D803 version.
Status of phone: Boots shows LG logo and goes immediately to black screen 'Fastboot mode started'.
Tried: Download mode attempts bring up the download mode logo for a sec and immediately the phone goes back to Fastboot mode started screen.
User rickthewood2 reported he had the same issue and was provided a fix. http://forum.xda-developers.com/showthread.php?t=2723687.
I tracked him on a french forum where he reported that XDA guy compiled a file for him that unbricked this issue as he was having a hard time with entering commands. He also specified that the trick was to repair his download mode with a laf.img file ... once download mode was repaired he went back to stock rom. This is the link of his post made in french http://www.phonandroid.com/forum/ecran-noir-apres-autorec-t90109.html
Please assist.
Click to expand...
Click to collapse
Hi,
do you have an idea wich autorec is nessesary for a G2 shipped from HongKong. Ic guess I have the same issue like you. But on the case I have a D802 lable. So I thought it must be the one for a D802. May I'm wrong?
Now I tried a D800 one and it worked as I could start my phones download mode. After starting it I installed different roms but all had strange behavior like wrong touch an just flipping arround after touching. There is also no chance to connect to the network. Later I saw that my G2 32GB only shows 10GB of internal storage when its connected to pc. Any idea what I did wrong?
I would be very thankfull for help!!!!
Thanks

XxZombiePikachu said:
it's all done using adb; fastboot is the mood you are in and with adb is how we look for device and send the commands
after going into your adb folder(android sdk>platform-tools or ioroot folder) you make sure to copy the laf image into it and then after opening cmd window and cd into the adb folder you use the adb devices command if after starting daemon it show your device in fastboot mode then you do the following:
fastboot erase laf
fastboot flash laf laf.img
actually you can flash all the partitions using fastboot(the images inside assets folder) and then doing a simple reboot should boot your device but if it doesn't then you just have to boot into download mode:
fastboot erase aboot
fastboot flash aboot aboot.img
fastboot erase boot
fastboot flash boot boot.img
fastboot erase laf
fastboot flash laf laf.img
fastboot erase recovery
fastboot flash recovery recovery.img
with either method when done flashing correct files use:
fastboot reboot
and your device will reboot; make sure that you flash all correct files before rebooting and then if device boots normally you will have custom recovery and be back on the stock rom if by any chance it doesn't boot then you can just boot into download mode(hold volume up while plugging in usb cable to phone/pc) and then just kdz/tot back to stock
Best of Luck :fingers-crossed:
Click to expand...
Click to collapse
thought it was working cause it was most progress ive seen in months but now im totally stuck in bootloop mode at the LG screen, i can get to download mode but that just sticks on the firmware update page with 0% progress and i can't get adb to recognize my phone now. arrrrrrrg this is my main phone what can i do now to fix this?
need help asap
please and thank you
paul

XxZombiePikachu said:
it's all done using adb; fastboot is the mood you are in and with adb is how we look for device and send the commands
after going into your adb folder(android sdk>platform-tools or ioroot folder) you make sure to copy the laf image into it and then after opening cmd window and cd into the adb folder you use the adb devices command if after starting daemon it show your device in fastboot mode then you do the following:
fastboot erase laf
fastboot flash laf laf.img
actually you can flash all the partitions using fastboot(the images inside assets folder) and then doing a simple reboot should boot your device but if it doesn't then you just have to boot into download mode:
fastboot erase aboot
fastboot flash aboot aboot.img
fastboot erase boot
fastboot flash boot boot.img
fastboot erase laf
fastboot flash laf laf.img
fastboot erase recovery
fastboot flash recovery recovery.img
with either method when done flashing correct files use:
fastboot reboot
and your device will reboot; make sure that you flash all correct files before rebooting and then if device boots normally you will have custom recovery and be back on the stock rom if by any chance it doesn't boot then you can just boot into download mode(hold volume up while plugging in usb cable to phone/pc) and then just kdz/tot back to stock
Best of Luck :fingers-crossed:
Click to expand...
Click to collapse
Thanks alot it worked for me but my phone is stuck in download mode whilst installing firmware at %60 every time saying the phone is disconnected from pc ... any idea please
Thanks in adv

Please help Stuck fastboot mode no download mode no recovery mode

So I have read alot about this problem and not one can help me fix my phone.
I got an lg g d802t Australian version I cannot acces anything Lg screen pops up and striaght to fastboot mode... iv tried posting on the other help thread but i need this fixed asap.... and no1 has replied to my post so im making a thread.
Iv tried using fastboot cmd command or w/e but it gets stuck at waiting for device. tried downloading the driver for fastboot still happens. Iv tryd almost everything out there and yet i cant find what im doing wrong. following intrustions one by one and somehow i still cant get it working.
All the does is power on, logo comes up and boom fastboot mode. No recovery mode no hold down and power button nothing happens.
when connected to usb i hear a ding and my phone comes up with -reset- -portcharge- about 3times and then nothing.

download google adb driver, select it from the list - you can select nexus..
then "fastboot devices"
then you would need your partitions, aboot, boot, laf from the same compilation to proceed.

bender_007 said:
download google adb driver, select it from the list - you can select nexus..
then "fastboot devices"
then you would need your partitions, aboot, boot, laf from the same compilation to proceed.
Click to expand...
Click to collapse
changed computers finaly got somewhere downloaded the right drivers and other stuff now i can access the fastboot on my phone from cmd.
i then followed the other thread i posted on the fix thread (i think you know what im talking about)
and then after the erase laf part of it and then flash a new laf all working fine but now error cannot open laf
what now ?

Put laf on the c:\ . then fastboot flash laf c:\laf.img

bender_007 said:
Put laf on the c:\ . then fastboot flash laf c:\laf.img
Click to expand...
Click to collapse
works! but now after that step holding volume + and insert usb gets me back to fastboot mode not download mode...
is there a way i can flash a new system while in fastboot mode?

You should flash aboot, boot, laf and if you want the recovery.

bender_007 said:
You should flash aboot, boot, laf and if you want the recovery.
Click to expand...
Click to collapse
YES! thankyou so much i didnt flash recovery but now i can get into download mode so now im going to try and go to guide number 2 http://forum.xda-developers.com/showthread.php?t=2432476
ill get back to you if it it works thankyou again
thankyou got it working again! thanks alot man!

You'll be fine

H870 Unlocked bootloader - can't boot into Download Mode

Hi, so my G6 is quite laggy so I thought maybe reflashing the firmware may help but the problem is, I can't boot into Download Mode. I tried it doing the normal way, with hardware buttons and I tried the adb command and with both methods phone still boots as normal. C

righN said:
Hi, so my G6 is quite laggy so I thought maybe reflashing the firmware may help but the problem is, I can't boot into Download Mode. I tried it doing the normal way, with hardware buttons and I tried the adb command and with both methods phone still boots as normal. C
Click to expand...
Click to collapse
Download Mode? I don't think non-Samsung phones have a download mode, do you mean fastboot mode? If you unlocked the bootloader, Install LG usb drivers and use 'adb reboot-bootloader' to reboot into fastboot mode, from here you can use 'fastboot flash recovery XXX.img' to flash a twrp image and use TWRP to install ROMs

I've had a few lg phones and from a power off state just hold volume down and plug the usb in while it's connected to the computer.
I might be remembering that wrong, try volume up and plug as well.
My current lg has no development so it's been a while

Mnky313 said:
Download Mode? I don't think non-Samsung phones have a download mode, do you mean fastboot mode? If you unlocked the bootloader, Install LG usb drivers and use 'adb reboot-bootloader' to reboot into fastboot mode, from here you can use 'fastboot flash recovery XXX.img' to flash a twrp image and use TWRP to install ROMs
Click to expand...
Click to collapse
Yes, I do mean download mode. LG has Download Mode. TWRP won't help, because stock LG firmware is in .kdz.

dolph8886 said:
I've had a few lg phones and from a power off state just hold volume down and plug the usb in while it's connected to the computer.
I might be remembering that wrong, try volume up and plug as well.
My current lg has no development so it's been a while
Click to expand...
Click to collapse
I tried that method, didn't help.

righN said:
Yes, I do mean download mode. LG has Download Mode. TWRP won't help, because stock LG firmware is in .kdz.
Click to expand...
Click to collapse
I didnt even know lg had a download mode,have you tried using LG UP to flash the kdz

Mnky313 said:
I didnt even know lg had a download mode,have you tried using LG UP to flash the kdz
Click to expand...
Click to collapse
That's what I'm trying to do... But I want to reinstall the firmware not update so I have to get into Download Mode.

Mnky313 said:
I didnt even know lg had a download mode,have you tried using LG UP to flash the kdz
Click to expand...
Click to collapse
I'll be damned I actually tried to just to an upgrade with LG UP without booting into download mode by myself and it reflashed the firmware! I did an factory reset after that and now let test if it still lags.

righN said:
I'll be damned I actually tried to just to an upgrade with LG UP without booting into download mode by myself and it reflashed the firmware! I did an factory reset after that and now let test if it still lags.
Click to expand...
Click to collapse
cool, glad you got it working, I've never used LG UP or download mode, I always just flash zefie's zip in TWRP

Stuck in Fastboot Lg g6 h872 (T-mobile)

Hi, My lg g6 H872 is stuck in fast boot after i restarted it by removing a system app through titanium backup.
-my rom was rooted official 11g
- it cant work with any fast boot command. ( so i cant go to recovery or reinstal it)
- when i restart it come back to same screen
- when i hold power it restart same sreen (fastboot)
plz help if anyone know or mention any thread which can help
thankyou

if you are able to boot to download mode then you can use lgup tool along with the patched v20dll and use it flash 11g or newer kdz if available and you should be good to go.

lingarajug said:
if you are able to boot to download mode then you can use lgup tool along with the patched v20dll and use it flash 11g or newer kdz if available and you should be good to go.
Click to expand...
Click to collapse
im not able to boot in download mode, it restart to fastboot always

smhg007 said:
im not able to boot in download mode, it restart to fastboot always
Click to expand...
Click to collapse
if you kinow what system app you removed you can flash it back through fastboot commands

lingarajug said:
if you kinow what system app you removed you can flash it back through fastboot commands
Click to expand...
Click to collapse
fastboot commands are not working

smhg007 said:
fastboot commands are not working
Click to expand...
Click to collapse
Have you installed LG's USB drivers? (Download here)
Then connect your G6 to the PC and run the command fastboot devices to check if your device is listed.

My phone lenovo a7000 .. It's work normal but I can't fix imei in custom ROM so I have to unlock OEM .
When I try to boot thru fastboot mode it stuck on it!
How can I fix it

khaled ghanem said:
My phone lenovo a7000 .. It's work normal but I can't fix imei in custom ROM so I have to unlock OEM .
When I try to boot thru fastboot mode it stuck on it!
How can I fix it
Click to expand...
Click to collapse
Use sp flash tool and flash stock firmware search it on YouTube
Sent from my LG G6 using XDA Labs
---------- Post added at 09:29 AM ---------- Previous post was at 09:26 AM ----------
smhg007 said:
fastboot commands are not working
Click to expand...
Click to collapse
If your phone is in fastboot mode then you can run fastboot commands but i feel they're useless because your phone is bricked so take it to a service center
Sent from my LG G6 using XDA Labs

I had same problem.
Connect usb cabel to PC.
Make reboot: hold vol- and power buttons
When display off, release these buttons and press and hold vol+.
Do it quickly. You will see download mode.
Good luck)