Develop Bugs

[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] Twrp problem

Hello i have an Lg g3 D855 i try to put the twrp because i want to install the xpose framework and now i cant put the factory settings. when im trying to do that on boot logo shows me something litthe letters as i can read it says "sorry"and some other things , and then i must put out the battery and plug again to boot my phone. I think i put wrong .(img ) from D581 with the flashify. i tryied the correct but nothing again.

Try TWRP Manager instead...
https://play.google.com/store/apps/details?id=com.jmz.soft.twrpmanager

Yes i tried that but nothing. The blue/red led is on and off all the time until i put out the battery. I read there is a recovery.img for this problem but i cant find it here

Could anyone please help me with that? I have lolipop and it is D855. I cant find any threds about this problem.. PLEASE HELP!!!

Miyagki said:
Could anyone please help me with that? I have lolipop and it is D855. I cant find any threds about this problem.. PLEASE HELP!!!
Click to expand...
Click to collapse
@Miyagki try this thread and let me know if that helped you
http://forum.xda-developers.com/lg-...bumpd-twrp-t3048845/post59287063#post59287063

Finally i flash the 4.4.2 kitkat and im doing all from begining.. Still have troubles.. OMG.. :crying:

LG G3 D855 wont start On

hi every one i need some Help please
I flashed My LG G3 with the Android 6.0 after that a mistake a used kingroot to root it then i let the Phone perfect the night
next day he wont stat On i retired battry nothing
i tried to go in recovery Mode or flash Mode also nothing took him to a repair place they said he worked like charm in 2hr then he'r we go again same problém
please i need your help

dishonored said:
hi every one i need some Help please
I flashed My LG G3 with the Android 6.0 after that a mistake a used kingroot to root it then i let the Phone perfect the night
next day he wont stat On i retired battry nothing
i tried to go in recovery Mode or flash Mode also nothing took him to a repair place they said he worked like charm in 2hr then he'r we go again same problém
please i need your help
Click to expand...
Click to collapse
Have you tried to change the battery? Do you have a memory card installed ?
Also have you tried the adoptable storage option?
http://forum.xda-developers.com/lg-g3/general/marshmallow-careful-adoptable-storage-t3287375

thank you i have retired ut The SD still nothing
and battry also tried another one same result

dishonored said:
thank you i have retired ut The SD still nothing
and battry also tried another one same result
Click to expand...
Click to collapse
If the problem comes from the Custom ROM , the ideal would be to flash the stock ROM using LG Flash Tool (2014)
Here the thread where I downloaded the stock ROM I am using now: [LG G3] Android Marshmallow discussions
There are many tutorials and videos on Youtube. So you can try to flash it.
You will lose root but if you really want it, you can use this tutorial to root the stock Marshmallow: Root + TWRP Marshmallow D855 (30b)
Try this and please tell me if it solves your problem or not .

what i downloaded is also a stock ROM
no sorry the computer wont recognize My phone and the phone wont go to download Mode

i tried to plug out the battery and connect the Phone to Pc he recognize him but says there is trouble connection
so Waiting some hlep Guys
thans for every help

any help pleaaase ??

LG G3 Download mode disable by kiLL switch

Hi Guys,
Can anyone help me ??, when im trying to flash the my LG G3 LS990 firmware , it shows
Download mode disable by kill switch , how to enable this and how to enter in download mode ,how to fix that , i can enter in recovery mode my phone is working fine i just need to flash the fresh firmware for me phone.
please please help me for this

downloadmode is disabled by kill switch
nicemak said:
Hi Guys,
Can anyone help me ??, when im trying to flash the my LG G3 LS990 firmware , it shows
Download mode disable by kill switch , how to enable this and how to enter in download mode ,how to fix that , i can enter in recovery mode my phone is working fine i just need to flash the fresh firmware for me phone.
please please help me for this
Click to expand...
Click to collapse
hello friend have u solved ur issue.
im also facing same type of issue please help

kp263 said:
hello friend have u solved ur issue.
im also facing same type of issue please help
Click to expand...
Click to collapse
Mine as well. I need to upgrade to marshmallow from lollipop but I couldnt fine a flashable zip only kdz. My phone doesnt have McAfee but download mode is disabled by kill switch.
BTW Im using f400s cloudy g3 2.5

I found some related links , not sure will wokr but try have a look
http://forum.gsmhosting.com/vbb/f799/d855-g3-strange-problem-solved-1848506/

Big problem. Only download mode.

Hi guys. I have proble, i wanted to install stock ROM 6.0 V30B with flashtool. On my phone was 1% when program on computer stopped, I unplugged phone and removed battery. I wanted to try install ROM with flashtool again, but flashtool doesn't search my phone. Can I fix my phone, or its trash now? Please help me.