Develop Bugs

[Q] Broken from update to Lollipop (stuck in fastboot)

I've seen some other people with this problem, but there have been no fixes.
The problem is that the phone was updated to Lollipop. It worked for a little bit, but after a couple of minutes lots of programs started force quitting, and it eventually turned off.
When it turns on, it takes about 20 minutes, and then goes into fastboot mode.
If I try to get into download mode, it stays on download mode for around 15 seconds, and then it continues into fastboot mode. Windows does not recognize the phone in download mode, so I can't restore anything from there.
What I have learned then is that I need to flash the laf.img file, which I got from download the official firmware from LG's website by inserting my IMEI, so it's the right version, and then trying both fastboot flash laf laf.img, as well as fastboot
boot laf.img. The problem is that they both fail writing, but it's not just that command. I can't do fastboot erase recovery, or fastboot erase anything, only thing that works is fastboot reboot.
Does this mean that the internal storage is broken? Is there anything else I can do? I can execute fastboot commands, but it seems like I cannot write anything. The drivers seem to be working, as it's recognized as a fastboot devices, but it only says
? fastboot devices
All commands result in a error(failure or something like that. I've removed the SD card as well, as I heard that might cause problems. As far as I know, I need to flash the laf.img to get into download mode, and from there on can flash via kdz.
Help please? This kind of sucks..

When you write a command, does it show on the phone?
You might need to change the driver in device manager. Look for "Android", update driver, browse my computer..., let me pick from a list, and here you'll see 3 different drivers, what you want is "Android bootloader interface"

hi
Hi dear frends.
Its sad to know that all you guys cant go to download mode or facing security error or stuck in lg logo or in fastboot mode
And some guys stuck qhsuab bulk 9008
So the solution is here.
If you are unable to get into download mode then you need to force your g3 into qhsusb bulk mode by shorting the test point.
I will help u all guys.....
I will help u to unbrick ur any lg model wothout download mode or stuck in 9008 or anytype of problem.
Please let me know your problem in pm.

how to fix lg f460k secure boot error

hello all
i brick my lg f460k while downgrading. ist it was in fast boot mode i searched alot on google how to fix fastboot. i found 1 thread to flash laf.img of f460k. i did it and now i hard brick my phone. diaspointed alot. now lg logo comeswith msg along secure boot error. in pc device manager showing qhsusb delod 9008 mode. any help from worthy developers

LG G3 D855 secure booting error !!

hello All
i did something very very very bad
i was upon to downgrade my D855 from 5.0 to Kitkat but it stop on 17% in pc and 0% on the phone
it still like that for 40 min so i unplug USB and i restart the phone i just get message says (secure booting error) in the up left side of phone and after that black screen and LED (BLUE & RED) i can not get in to download mode but when i try i get this :
Qualcomm HS-USB QDLoader 9008 (COM41)
and when i try to enter to recovery mode i get had to do factory reset and same problem !
so anyone can help me with this ?
Thanks ..

any help plz

Hello.
Move your battery, then replace it.
Flash an official kdz from lg.com with LGflashTool and your phone will restart

Your device is Brick!!
Try to enter Download mode
Flash your device again with LG FLash tools(tot File) or KDZ

i found it holllllaaa
for everyone have this problem, on this link you can fix it
http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359

i used KIZ file by the way
and i wish frm supervisor to close this subject and write solved on it
thanks.

Help!..Stuck on boot loop : "Secure boot error" error code 1014

Help please..My Lg G4 H815 is stuck on infinite loop since yesterday..
Just shord to be in words...My phone was stuck on lg logo after the battery whrn dead and then boots up and on the type the pin he restarted over and over, and i tried to reflash with LGUP and at 17% my phone restarted just like that..
Since then my phone is hanging on Secure booting error! Error code 1014.
What can i do..I got no warranty!
PS: I can't enter download mode (only shows Download mode and the the error and restarts)
I can't enter recovery(stock one) but when i him yes the second time to erase the error shows up and restarts.

Use the search option. Not for me and not for anyone else but to help yourself as fast as possible. You'll also learn stuff.
XDA user roopesh had the same problem: http://forum.xda-developers.com//g4/development/stock-h815-20a-stock-rom-t3233049/post63721579
He/she fixed their problem by following this guide: http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
Or follow my guide:
i) Make sure you have the LG Drivers installed from here: http://oceanhost.eu/e4h2px4e0hkd/LGMobileDriver_WHQL_Ver_4.0.4.exe.htm
ii) Download the LG Bridge software from here: http://www.lg.com/us/support/product-help/CT10000025-1438110404543-preinstall-apps
iii) Remove the battery and reinsert it so the device it is fully off.
iv) While holding the up volume button, insert your USB cable.
v) You should enter download mode. Go to the Software Update tab of the LG Bridge. It will say connecting and then should say your device is up to date. Click on the recovery text on the bottom right and then follow the instructions. The software will download the system image for you and this is roughly 1.6GB so make sure your firewall doesn't block this connection.

I've searched everywhere i think..before i posted the question
The phone wont stay in download mode....
It shows the little box with download and then the error i mentionet above and restarts..
And means SEA mobile?

hey alex have you fixed your g4 ? i have same problem.

Bricked D855? Can you help me?

I think I borked my TWRP, my G3 only says
"Fastboot mode started"
and
"-reset-
-portchange-
STALL GET_DESCRIPTOR 128 6 1006 0 18
fastboot: processing commands"
when connected to PC.
Any way to fix that?
I am able to get into download mode, and it says:
Firmware Update, do not unplug until complete as I have the PC drivers installed.