Lg g3 ls990 stuck in bootloop, no download mode / fastboot mode - G3 Q&A, Help & Troubleshooting

hello guys, i tried installing twrp on my lg g3. it seems it flashed a wrong file and now my phone is stucke din boot loop, i cant enter download mode and fastboot mode. lg logo appears , screen dims and bootloops agaiin....pls help...beeen searching througgh all the threads but no help..
SPRINT LG G3 (LG LS990)

colby950 said:
hello guys, i tried installing twrp on my lg g3. it seems it flashed a wrong file and now my phone is stucke din boot loop, i cant enter download mode and fastboot mode. lg logo appears , screen dims and bootloops agaiin....pls help...beeen searching througgh all the threads but no help..
SPRINT LG G3 (LG LS990)
Click to expand...
Click to collapse
Try to take out the battery. After put it back and press the volume up and plug in a the lg micro USB to your phone but before doing that be sure it is plug in to your computer and wait until you see the download mode. I forgot the video link but just search up unbrick,unroot lg g3 on YouTube and search for the video that you see a lg g3 with a blue screen and a number 3 in the middle. After you find the video use it to guide your self to repair your lg g3. Hopes it helps please message me back if you do it and if you what I can help if it doesn't help.

jonnyszt said:
Try to take out the battery. After put it back and press the volume up and plug in a the lg micro USB to your phone but before doing that be sure it is plug in to your computer and wait until you see the download mode. I forgot the video link but just search up unbrick,unroot lg g3 on YouTube and search for the video that you see a lg g3 with a blue screen and a number 3 in the middle. After you find the video use it to guide your self to repair your lg g3. Hopes it helps please message me back if you do it and if you what I can help if it doesn't help.
Click to expand...
Click to collapse
pls it didnt work . as soon as i plug in my usb the charging signal shows then the phone boots on its on to lg logo. and bootlooop begins

Did you press volume up ?

Yes only the volume up does it in plug in the micro USB that is already connect to your PC (use your original cable)

volume up not working .
jonnyszt said:
Yes only the volume up does it in plug in the micro USB that is already connect to your PC (use your original cable)
Click to expand...
Click to collapse
yes i did. still not working

Could you enter recovery mode?

jonnyszt said:
Could you enter recovery mode?
Click to expand...
Click to collapse
no please. it is just the bootloop . no download mode , recovery mode and fastboot mode. tried installing twrp but instllled a wrong file instead

What happens when you connect your phone to your computer

jonnyszt said:
What happens when you connect your phone to your computer
Click to expand...
Click to collapse
nothing happens . the battery signal appears and phone powers on its own to start its bootloop
when i remove the battery and connect it to the computer it shows as unknown device in the usb controlllers section.

That weird, how did you get to the bootloop(what did you do before the bootloop happen

jonnyszt said:
That weird, how did you get to the bootloop(what did you do before the bootloop happen
Click to expand...
Click to collapse
i flashed a wrong twrp file

That happen to me , the light started blinking red and blue (first time turning off)

jonnyszt said:
That happen to me , the light started blinking red and blue (first time turning off)
Click to expand...
Click to collapse
mine went off...tried to power it up and in bootloop. what did you do to fix urs

I was able to enter download mode but your case is worst. What color where the led light flashing when it shut down (after installing the wrong twrp) and when booting up
---------- Post added at 01:11 AM ---------- Previous post was at 01:00 AM ----------
So any news?

jonnyszt said:
I was able to enter download mode but your case is worst. What color where the led light flashing when it shut down (after installing the wrong twrp) and when booting up
---------- Post added at 01:11 AM ---------- Previous post was at 01:00 AM ----------
So any news?
Click to expand...
Click to collapse
Hi!! Im in the same case
My phone reboot itself and show LG logo then Android logo then black screen.
Tried on Win 8 x64, FlashTool 1.8.6.527
- reboot
- take off the battery and turn on
- wipe
Result
-same lg logo, android logo, Black Screen
Tried
-http://forum.xda-developers.com/sprint-lg-g3/general/guide-how-to-restore-sprint-lg-g3-ls990-t2852042
Result
-Flash Tool error diferent model (D855)
Then I opened the phone looking for mother board model and it is LS990.
Tried
- flash with D855 .dll and .tot files
Result
- error on partition change fail
- trwm recovery delete
- the phone just enter on donwload mode vol +, vol- and without push the vol buttons the phone enter in download mode
Tried on windows 7 x86
- again flash with LS990 dll, tot and D855 dll, tot
Result
- the same errors using LS990 dll or tot
Tried
-Flashing with D855 tot and LGUP_8974.dll
Result
- Lg logo loop
- no download mode, vol buttons just not work
Any Ideas?
can I install custom recovery and try somthing from there?

Search online, there is a forum to restore your download mode if you want it
Sent from my Moto G using Tapatalk

hello same problème , bootloop no download mode , juste factory hard reste and hardware control , the only way to make pc reconnise a unknow usb device is to connect phone without battery , is there a special driver for that ?
or any othere way to fix my phone
oh yes ,sorry i have LG G3 D855 32g

Related

[Q] HELP! Lost download mode! LG E970

Hello, So i tryed to flash to CM10 rom for LG E970 and my screen went black after reboot. So then I tried t go back to stock with LGNPST and it would get to the logo and stop. So then (lol) I tried using a teenybin instead and now I can't get download mode to show up and all the screen will do it show a gray battery with a lighting bolt and sometimes when trying to power on or get to download mode it'll act like it's about to do something and shows a black screen with google in grey and an unlocked lock at the bottom of the screen. Help is all lost or can i fix this??
Dreadingdawn said:
Hello, So i tryed to flash to CM10 rom for LG E970 and my screen went black after reboot. So then I tried t go back to stock with LGNPST and it would get to the logo and stop. So then (lol) I tried using a teenybin instead and now I can't get download mode to show up and all the screen will do it show a gray battery with a lighting bolt and sometimes when trying to power on or get to download mode it'll act like it's about to do something and shows a black screen with google in grey and an unlocked lock at the bottom of the screen. Help is all lost or can i fix this??
Click to expand...
Click to collapse
Use the KDZ Updater with the latest firmware version of your phone...
First, download and install the latest lg driver. (your phone must be unplugged when installing)
Second, download the LG E970 kdz.
Third, "google" and install the kdz updater.
Fourth, put your phone in "Download mode" by pressing both volume keys and plug into usb port (wait 2-3 seconds, your computer will load the driver)
Fifth, open the kdz updater and select "3GQCT" in type...and "CS_Emergency" in phone mode. Then browse & select the kdz you've just downloaded...and press the Launch button. It should take about 8-10 minutes to complete...your phone will reboot around param.94 then you can unplugged it and let it boot normally.
Finally, make a "factory reset" to erase all previous data and plug your phone to wall charger to gave him some fresh blood.
Give us some feedback & good luck :good:
Sent from my AOSP on geeb_att_us using xda premium
Dreadingdawn said:
Hello, So i tryed to flash to CM10 rom for LG E970 and my screen went black after reboot. So then I tried t go back to stock with LGNPST and it would get to the logo and stop. So then (lol) I tried using a teenybin instead and now I can't get download mode to show up and all the screen will do it show a gray battery with a lighting bolt and sometimes when trying to power on or get to download mode it'll act like it's about to do something and shows a black screen with google in grey and an unlocked lock at the bottom of the screen. Help is all lost or can i fix this??
Click to expand...
Click to collapse
Try to get in donwload mode pushing together volume+ and volume- and then plug in the usb cable (to your pc) do not release the buttons until you see the download mode logo on the screen. The phone has to be off before doing the procedure if it wont turn off , push the power button for something like 15 sec, should go off that way
Good luck and in the event that you can't go in download mode anymore , take it to assistance. It's the only way.
JasonBourne.Qc said:
Use the KDZ Updater with the latest firmware version of your phone...
First, download and install the latest lg driver. (your phone must be unplugged when installing)
Second, download the LG E970 kdz.
Third, "google" and install the kdz updater.
Fourth, put your phone in "Download mode" by pressing both volume keys and plug into usb port (wait 2-3 seconds, your computer will load the driver)
Fifth, open the kdz updater and select "3GQCT" in type...and "CS_Emergency" in phone mode. Then browse & select the kdz you've just downloaded...and press the Launch button. It should take about 8-10 minutes to complete...your phone will reboot around param.94 then you can unplugged it and let it boot normally.
Finally, make a "factory reset" to erase all previous data and plug your phone to wall charger to gave him some fresh blood.
Give us some feedback & good luck :good:
Sent from my AOSP on geeb_att_us using xda premium
Click to expand...
Click to collapse
Rockguy40 said:
Try to get in donwload mode pushing together volume+ and volume- and then plug in the usb cable (to your pc) do not release the buttons until you see the download mode logo on the screen. The phone has to be off before doing the procedure if it wont turn off , push the power button for something like 15 sec, should go off that way
Good luck and in the event that you can't go in download mode anymore , take it to assistance. It's the only way.
Click to expand...
Click to collapse
Hey thanks for the help guys :good: but it's not even charging anymore and has died lol so i'm gonna let the nice folks over at mobiletechvideos.com JTAG it. Again thanks!! :fingers-crossed:

[Q] optimus G e970 help plz faild kdz im lost

Ok so i got this phone a AT&T optimus g e970 i rooted it and dleted the stock att aps when i rebooted it it was stuck in the security error boot loop so i tried to flash the .kdz and thats where it messed up my son pushed the power button on my laptop at about 90 percent or so. so i turned it back on unpluged my phone it was still on the download mode screen i held the power button down and it never came back on.when i hold the power button down the red light around the charger lights up for about 3 seconds then shutsf off and thats all. i checked under device mannager and m phone showed up as QHSUSB_DLOAD so i found some drivers now it shows up as Qualcomm HS-USB Qdloader 9008 (COM5) and tried to use qpst to fix it but i cant find any of the phone images or boot images. i really need this phone to work its my only one and its driving me nuts any help plz.
what you are describing...its hard bricked,
jtag is solution
or you can try
Originally Posted by mathprav View Post
well, battery was available, and i had the exact state, only can see the red led, then when connected to PC it showed QHSUSB_DLOAD something
then i changed the windows driver to the one provided by lg drivers( how to do that shown in teenybin thread) then after flashing it i was able to see the fastboot mode and then went into the recovery used adb sideload to restore the nandroid backup and my LG Phone was back to life again....
Click to expand...
Click to collapse
or the method on chinese forum http://bbs.gfan.com/android-6269182-1-1.html

Black screen with red and blue flashing LED

Hi I use a LG G3 and flashed a zip that was not designed for my phone (Validus-shamu-5.0.1.alpha.1.0-TEST-20141217-2151.zip) by a accident and rebooted, and now my phone has a black screen and the led is flashing red and blue (and said error: boot certification verify prior to that stage). How can I fix it?
Additional info: I was using the latest TWRP recovery, and own a d852 variant.
Any input would be appreciated! This is my only phone and I would like to resolve this as soon as I can.
UPDATE: i tried pressing power + up and now nothing reacts, even when i press other buttons. black screen. no LED.
UPDATE2: I removed the battery and put it back in, and now LED are back.
EDIT: FIXED. CLOSE THREAD PLEASE. got my solution from: "What you have to is power + vol down while off till you see the LG logo, then release then immediately press them again it should bring you to a factory reset screen select yes and you will boot into recovery." if people are interested.
I need help as well
droids4lyfe99 said:
Hi I use a LG G3 and flashed a zip that was not designed for my phone (Validus-shamu-5.0.1.alpha.1.0-TEST-20141217-2151.zip) by a accident and rebooted, and now my phone has a black screen and the led is flashing red and blue (and said error: boot certification verify prior to that stage). How can I fix it?
Additional info: I was using the latest TWRP recovery, and own a d852 variant.
Any input would be appreciated! This is my only phone and I would like to resolve this as soon as I can.
UPDATE: i tried pressing power + up and now nothing reacts, even when i press other buttons. black screen. no LED.
UPDATE2: I removed the battery and put it back in, and now LED are back.
EDIT: FIXED. CLOSE THREAD PLEASE. got my solution from: "What you have to is power + vol down while off till you see the LG logo, then release then immediately press them again it should bring you to a factory reset screen select yes and you will boot into recovery." if people are interested.
Click to expand...
Click to collapse
I tried to Flash twrp-2.8.0.0_d855-signed.img for TWRP Bootlader and got the same problem. Did i done some thing wrong pls I need an assist.
droids4lyfe99 said:
EDIT: FIXED. CLOSE THREAD PLEASE. got my solution from: "What you have to is power + vol down while off till you see the LG logo, then release then immediately press them again it should bring you to a factory reset screen select yes and you will boot into recovery." if people are interested.
Click to expand...
Click to collapse
Worked for me also! I just exited the factory reset menu and it booted up normally! Thanks for the help!
you're skating on very thin ice if you are flashing anything to your device that is not specifically for that model..
Cant fix the issue
Hello, i rooted a LG G3 D855, lollipop, installed flashify and then flashed twrp (last version) now i cant enter into recovery mode (red blue led blinks) i tried the factory reset without any results.
thanks
Download mode?
freddyjgv said:
Hello, i rooted a LG G3 D855, lollipop, installed flashify and then flashed twrp (last version) now i cant enter into recovery mode (red blue led blinks) i tried the factory reset without any results.
thanks
Click to expand...
Click to collapse
did you have tryed the DOWNLOAD MODE? take battery out, put usb cable on PC and on Phone, press VOL+ and untill you mantain VOL+ pressed, insert battery, download mode suposed to enter...:fingers-crossed:
if it works just reflash your firmware...
lazzarusbr said:
did you have tryed the DOWNLOAD MODE? take battery out, put usb cable on PC and on Phone, press VOL+ and untill you mantain VOL+ pressed, insert battery, download mode suposed to enter...:fingers-crossed:
if it works just reflash your firmware...
Click to expand...
Click to collapse
didnt tried but i want to get into recovery mode so i can full backup and flash cloudyg3
i have same problem on my d855 5.0 v20h.... i tried instal twrp but i cant boot into recovery mode.... system boot is fine, how can i solve this problem?? i dont wanna reflash firmware...
any solution?
linux_svk said:
i have same problem on my d855 5.0 v20h.... i tried instal twrp but i cant boot into recovery mode.... system boot is fine, how can i solve this problem?? i dont wanna reflash firmware...
Click to expand...
Click to collapse
Did you fix the issue?
linux_svk said:
i have same problem on my d855 5.0 v20h.... i tried instal twrp but i cant boot into recovery mode.... system boot is fine, how can i solve this problem?? i dont wanna reflash firmware...
Click to expand...
Click to collapse
You can use the NEW 1 CLICK script ROOT +TWRP . it Will install CORRECT files to do TWRP work in stock firmware and it will correct your problem! and at end you be with the newest version of TWRP! here: http://forum.xda-developers.com/lg-g3/general/d855-one-click-root-twrp-recovery-t3072767 :good:
lazzarusbr said:
yoy can use the NEW 1 CLICK script ROOT +TWRP . it Will install CORRECT files to do TWRP work in stock firmware and it will correct your problem! and at end you be with the newest version of TWRP! here: http://forum.xda-developers.com/lg-g3/general/d855-one-click-root-twrp-recovery-t3072767 :good:
Click to expand...
Click to collapse
it doesnt matter if i already have my phone rooted and with the red blue led issue??? thx
okey so im gonna try this http://forum.xda-developers.com/lg-g3/general/d855-one-click-root-twrp-recovery-t3072767
GUYS DO IT LIKE HERE http://forum.xda-developers.com/showpost.php?p=59931455&postcount=104
WORK PERFECT!!!
Hi,
droids4lyfe99 said:
Hi I use a LG G3 and flashed a zip that was not designed for my phone (Validus-shamu-5.0.1.alpha.1.0-TEST-20141217-2151.zip) by a accident and rebooted, and now my phone has a black screen and the led is flashing red and blue (and said error: boot certification verify prior to that stage). How can I fix it?
Additional info: I was using the latest TWRP recovery, and own a d852 variant.
Any input would be appreciated! This is my only phone and I would like to resolve this as soon as I can.
UPDATE: i tried pressing power + up and now nothing reacts, even when i press other buttons. black screen. no LED.
UPDATE2: I removed the battery and put it back in, and now LED are back.
EDIT: FIXED. CLOSE THREAD PLEASE. got my solution from: "What you have to is power + vol down while off till you see the LG logo, then release then immediately press them again it should bring you to a factory reset screen select yes and you will boot into recovery." if people are interested.
Click to expand...
Click to collapse
Any solutions yet?
Thank You lazzarusbr!
You Sir saved me a lot of reading
This method helped me get out from the red-blue blinking, black screen Recovery ****up. I believe I got into it because I should have flashed the TWRP using KitKat, but my device came with Lollipop installed....
---------- Post added at 04:38 PM ---------- Previous post was at 04:34 PM ----------
You Sir saved me a lot of reading !
This method helped me get out from the red-blue blinking, black screen Recovery ****up. I believe I got into it because I should have flashed the TWRP using KitKat, but my device came with Lollipop installed....
Had the same problem few minutes ago, then I just hold power button to reset the phone and it worked but I dont know if TWRP is installed now..?
did you try factory mode..
lazzarusbr said:
You can use the NEW 1 CLICK script ROOT +TWRP . it Will install CORRECT files to do TWRP work in stock firmware and it will correct your problem! and at end you be with the newest version of TWRP! here: http://forum.xda-developers.com/lg-g3/general/d855-one-click-root-twrp-recovery-t3072767 :good:
Click to expand...
Click to collapse
This saved the day for me! Thank you so much!!!!!
freddyjgv said:
it doesnt matter if i already have my phone rooted and with the red blue led issue??? thx
Click to expand...
Click to collapse
Mate, thank you a lot, you just saved my life.
I can't even express how thankful I am because my device almost got bricked and you just saved me. Thanks a lot !
It means not fully load.
Try to install the AUTORECAR in the Play Store.
Lol. The same thing happened to me on LG-D855. I flashed the TWRP recovery zip and new my phone is literally unusable. It doesn't boot into recovery or into anything else. Sigh.

Weird and unusual issue with my lg g3 and I can't seem to find a solution?

Hi guys,
So basically the problems i'm facing is, I turn on the phone and it i'm greeted with the lg logo for a while then it stays on the logo. I notice the led light changing colours but it's still on the lg logo. Few minutes after that it restarts on it's own and goes in the same kind of loop.
What I have tried:
Used the flash tool with tot and the dll file to reflash the phone, but all what ends up happening is it will keep restarting.
Tried entering recovery mode using the volume down and power button but it never goes in, it's as if it has no recovery. The only thing that works is download mode.
So any ideas? the phone to me seems like it's booting and the led notification lights are flashing but it's just stuck on the lg logo.
Thanks.
ramo55 said:
Hi guys,
So basically the problems i'm facing is, I turn on the phone and it i'm greeted with the lg logo for a while then it stays on the logo. I notice the led light changing colours but it's still on the lg logo. Few minutes after that it restarts on it's own and goes in the same kind of loop.
What I have tried:
Used the flash tool with tot and the dll file to reflash the phone, but all what ends up happening is it will keep restarting.
Tried entering recovery mode using the volume down and power button but it never goes in, it's as if it has no recovery. The only thing that works is download mode.
So any ideas? the phone to me seems like it's booting and the led notification lights are flashing but it's just stuck on the lg logo.
Thanks.
Click to expand...
Click to collapse
Are you sure it is download mode? Not fastboot?
If it is fastboot follow the guide in my signature - and welcome to the club
Ernesto0023 said:
Are you sure it is download mode? Not fastboot?
If it is fastboot follow the guide in my signature - and welcome to the club
Click to expand...
Click to collapse
I'm 100% sure it's in download mode as when I enter download mode it literally says "download mode" then the actual download mode screen comes up with the port that I am connected using and so on, so any ideas?
ramo55 said:
I'm 100% sure it's in download mode as when I enter download mode it literally says "download mode" then the actual download mode screen comes up with the port that I am connected using and so on, so any ideas?
Click to expand...
Click to collapse
How does your PC recognize your phone if you plug it in?
Maybe you should (re)install latest LG Drivers and try again with flashtool. Which Flashtool do you use?
In my case of brick there was no Download-Mode anymore, just entered it and then after a few seconds a black screen with fastboot mode - so it looked like download mode but it wasnt, but i also didnt have flashing leds.

Soft or Hard Brick my Lg G3 D855

hi, guys i recently bought lg g3 d855 on ebay. my lg g3 d855 came installed version with anroid KK. i tried using imageprepGUI. now the phone cannot enter download mode nor boot into system. i is getting continuous boot loop after lg logo. i can access the factory reset menu by pressing volume down and power button also the phone is not being detected on my computer not even is QDLoader 9008 mode.
please help me out, i have been searching and searching for the answer but have been unsuccessful.
etch04 said:
hi, guys i recently bought lg g3 d855 on ebay. my lg g3 d855 came installed version with anroid KK. i tried using imageprepGUI. now the phone cannot enter download mode nor boot into system. i is getting continuous boot loop after lg logo. i can access the factory reset menu by pressing volume down and power button also the phone is not being detected on my computer not even is QDLoader 9008 mode.
please help me out, i have been searching and searching for the answer but have been unsuccessful.
Click to expand...
Click to collapse
Wat does it do when u try enter download mode. Doest it give u fastboot mode?
I can't Enter download using power button and volume up, it just keep on bootlooping after LG logo.
etch04 said:
I can't Enter download using power button and volume up, it just keep on bootlooping after LG logo.
Click to expand...
Click to collapse
I hope you know to enter download mode your phone has to be off. The while holding the volume up button you connect your phone to your usb. It wont even show u an lg logo if that fails you try with volume down. If that fails then you will have to short circuit the phone
I was able enter download mode before I used that tool..now it just keep on bootlooping.
I think I have to try short circuit as u recommend.
Thanks for the help.
etch04 said:
I was able enter download mode before I used that tool..now it just keep on bootlooping.
I think I have to try short circuit as u recommend.
Thanks for the help.
Click to expand...
Click to collapse
You need to use tp method to repair boot if you face any Problem plz conect me via pm
I have a similar case d855 rooted with twrp and cm13 nightly worked fine for a few days then rebooted into bootloop lg logo go into recovery goes to bootloop cant get into download mode if I leave it connected to the pc or charger for 5 mins it goes to fastboot bit I cant connect to it have drivers installed from pc suite but computer has it as in device manager as an android ? Something I type adb shell but it says nothing found any help would be good thanks I'm lost without it lol
---------- Post added at 08:55 PM ---------- Previous post was at 08:47 PM ----------
Sorry I did notice the download screen once for a few seconds then fastboot came up

Categories

Resources