help needed cable disconnecting - G4 Q&A, Help & Troubleshooting

okay guys a friend brought me his g4 which he says got bricked due to software update interruption
ok ...i can access download mode and i tried the kdz method with lg flash tool 2014
the problem is when the update starts after a couple of seconds the device disconnects then reconnects thus s\w upgrade gets interrupted.
any ideas?
thnx in advance

alphatia said:
okay guys a friend brought me his g4 which he says got bricked due to software update interruption
ok ...i can access download mode and i tried the kdz method with lg flash tool 2014
the problem is when the update starts after a couple of seconds the device disconnects then reconnects thus s\w upgrade gets interrupted.
any ideas?
thnx in advance
Click to expand...
Click to collapse
You could try downloading LG Bridge (http://www.lg.com/us/support/product-help/CT10000025-1438110404543-preinstall-apps) and then connect the G4 to it. Then, once LG Bridge detects the phone, try clicking on "Update error recovery", and let me know how that goes.

drewmrk8 said:
You could try downloading LG Bridge (http://www.lg.com/us/support/product-help/CT10000025-1438110404543-preinstall-apps) and then connect the G4 to it. Then, once LG Bridge detects the phone, try clicking on "Update error recovery", and let me know how that goes.
Click to expand...
Click to collapse
trying it now thnx for help
will post results

drewmrk8 said:
You could try downloading LG Bridge (http://www.lg.com/us/support/product-help/CT10000025-1438110404543-preinstall-apps) and then connect the G4 to it. Then, once LG Bridge detects the phone, try clicking on "Update error recovery", and let me know how that goes.[/QUOTE
i put the phone into download mode then checked for recovery error
update started but stopped due to battery error
i need to recharge it
Click to expand...
Click to collapse

alphatia said:
drewmrk8 said:
You could try downloading LG Bridge (http://www.lg.com/us/support/product-help/CT10000025-1438110404543-preinstall-apps) and then connect the G4 to it. Then, once LG Bridge detects the phone, try clicking on "Update error recovery", and let me know how that goes.[/QUOTE
i put the phone into download mode then checked for recovery error
update started but stopped due to battery error
i need to recharge it
Click to expand...
Click to collapse
Lol get it charged. Your outcome is killing me ive been trying to follow your thread. Ive been searching for a answer but ive been waiting to see ic this works first
Click to expand...
Click to collapse

TheMadScientist420 said:
alphatia said:
Lol get it charged. Your outcome is killing me ive been trying to follow your thread. Ive been searching for a answer but ive been waiting to see ic this works first
Click to expand...
Click to collapse
lol need to find an external battery charger or another g4
because once i plug the phone to the charger it automatically turns on and gets hot and doesnt even charge
Click to expand...
Click to collapse

alphatia said:
TheMadScientist420 said:
lol need to find an external battery charger or another g4
because once i plug the phone to the charger it automatically turns on and gets hot and doesnt even charge
Click to expand...
Click to collapse
Nust in case u know someone lg stylo is the same style batt just a 2900 mah stylo will also cbarge a g4 battery
Click to expand...
Click to collapse

I use flash tool . i dont know if lg bridge is the same as lgup. If it is im sorry if it aint u could try that too.
Also i have used and have what is called a fastboot cable used for motos and kindles. Works well it force charges even through hard bricks on kindle. Ive heard its also force charges g2s in qualcom usb bulk mode. Aka hard brick. One may work in your case too

TheMadScientist420 said:
I use flash tool . i dont know if lg bridge is the same as lgup. If it is im sorry if it aint u could try that too.
Also i have used and have what is called a fastboot cable used for motos and kindles. Works well it force charges even through hard bricks on kindle. Ive heard its also force charges g2s in qualcom usb bulk mode. Aka hard brick. One may work in your case too
Click to expand...
Click to collapse
got an external charger
charging now

drewmrk8 said:
You could try downloading LG Bridge (http://www.lg.com/us/support/product-help/CT10000025-1438110404543-preinstall-apps) and then connect the G4 to it. Then, once LG Bridge detects the phone, try clicking on "Update error recovery", and let me know how that goes.
Click to expand...
Click to collapse
bro it after clicking update error recovery
it starts downloading 1.5 gb size file so its definately downloading a full system

TheMadScientist420 said:
I use flash tool . i dont know if lg bridge is the same as lgup. If it is im sorry if it aint u could try that too.
Also i have used and have what is called a fastboot cable used for motos and kindles. Works well it force charges even through hard bricks on kindle. Ive heard its also force charges g2s in qualcom usb bulk mode. Aka hard brick. One may work in your case too
Click to expand...
Click to collapse
just tried lg up to flash mm kdz ..it flashed and now stuck at lg logo
still waiting

TheMadScientist420 said:
I use flash tool . i dont know if lg bridge is the same as lgup. If it is im sorry if it aint u could try that too.
Also i have used and have what is called a fastboot cable used for motos and kindles. Works well it force charges even through hard bricks on kindle. Ive heard its also force charges g2s in qualcom usb bulk mode. Aka hard brick. One may work in your case too
Click to expand...
Click to collapse
ok now here is the problem ..after waiting nothing happened so i thought ill flash an lp kdz
but lgup gives this error at 17% error;error code = 0x2000 g_hdfcommondll fail
now what to do ???

okay really bad news
i can no longer access download mode
guys any help is appreciated

alphatia said:
okay really bad news
i can no longer access download mode
guys any help is appreciated
Click to expand...
Click to collapse
Does the phone still turn on?

drewmrk8 said:
Does the phone still turn on?
Click to expand...
Click to collapse
i dont know what happened lol i was trying to get to recovery and i did then performed a full wipe
then after a couple of turn ons and offs it worked it android booted started optimising apps
then got into bootloop
good thing is download mode is back
....okay what to do now?

alphatia said:
i dont know what happened lol i was trying to get to recovery and i did then performed a full wipe
then after a couple of turn ons and offs it worked it android booted started optimising apps
then got into bootloop
good thing is download mode is back
....okay what to do now?
Click to expand...
Click to collapse
You should try using LG Flash Tool 2014 again and see if it messes up again.

drewmrk8 said:
You should try using LG Flash Tool 2014 again and see if it messes up again.
Click to expand...
Click to collapse
i tried and also stops at 9%

alphatia said:
i tried and also stops at 9%
Click to expand...
Click to collapse
Did you try again after the bootloop that just happened?

drewmrk8 said:
Did you try again after the bootloop that just happened?
Click to expand...
Click to collapse
yes i did
should i try lgup with lp kdz again

alphatia said:
yes i did
should i try lgup with lp kdz again
Click to expand...
Click to collapse
Yes try that again. I mean, we've got nothing to lose now, right?

Related

e988 KEEPED BOOTING INTO CWM, NOW ITS BRICKED!!!! IT WONT EVEN TURN ON

I was trying out a kitkat kernel which was for our kitkat official but I stupidly used it on an aosp rom and then my phone would only boot into cwm recovery and then I factory reset and it now doesnt even turn on, it shows up on my laptop but im running windows 8 and i havent been able to use the unbrick methods. If anyone can help out it would be appreciated and if i need to send it to LG i know i have breached warranty so what should i say to them?
Thanks!
Can you get into download mode?
Make sure the phone is off. Hold volume up and down at the same time and plug you USB cable into your phone, your phone should go into download mode.
It wont turn on at all, its like all the partitions have been corrupted. I cant get into download mode and when i go into adb it say (fault device) so I think ill need to send it back to LG
riki126 said:
It wont turn on at all, its like all the partitions have been corrupted. I cant get into download mode and when i go into adb it say (fault device) so I think ill need to send it back to LG
Click to expand...
Click to collapse
That sounds about right.....that really sucks man ....if you cant get into download mode and I don't know of a jig built for this device butni have one for Samsung which throws it into download mode......for our device I know of none..........your beat bet is probably to send it to lg as it seems to be hardbricked
2SHAYNE
Yeah i agree, thanks
Hi what should i tell LG on the phone when i call them? should i tell them the truth or a lie? its completly bricked so they wouldnt have any traces of me rooting it would they?
JustinNL said:
Can you get into download mode?
Make sure the phone is off. Hold volume up and down at the same time and plug you USB cable into your phone, your phone should go into download mode.
Click to expand...
Click to collapse
shayneflashindaily said:
That sounds about right.....that really sucks man ....if you cant get into download mode and I don't know of a jig built for this device butni have one for Samsung which throws it into download mode......for our device I know of none..........your beat bet is probably to send it to lg as it seems to be hardbricked
2SHAYNE
Click to expand...
Click to collapse
Hi what should i tell LG on the phone when i call them? should i tell them the truth or a lie? its completly bricked so they wouldnt have any traces of me rooting it would they?
riki126 said:
Hi what should i tell LG on the phone when i call them? should i tell them the truth or a lie? its completly bricked so they wouldnt have any traces of me rooting it would they?
Click to expand...
Click to collapse
Sometimes if you try to charge the phone for a really long time (say 12 to 18 hrs at stretch) - the phone starts to turn on. Try that. and see if you can boot into download mode.
Also, when you give it to LG ... tell them that it is not turning on, thats it...
ok, i tried charging it but nothing happened so ill send it to them and just say that it wont turn on. Thanks!
Once they get it booted up and see the custom kernel and Rom they are most likely going to charge you full price for another phone and of course will not honor any warrantee. As long as you're ok with that go ahead and sent it back for a replacement. with that bein said, it's probably best you tell them the truth so you get accurate info from them ahead of time.
riki126 said:
I was trying out a kitkat kernel which was for our kitkat official but I stupidly used it on an aosp rom and then my phone would only boot into cwm recovery and then I factory reset and it now doesnt even turn on, it shows up on my laptop but im running windows 8 and i havent been able to use the unbrick methods. If anyone can help out it would be appreciated and if i need to send it to LG i know i have breached warranty so what should i say to them?
Thanks!
Click to expand...
Click to collapse
If it is not to late.. What did you mean by "it shows up on my laptop but im running windows 8 and i havent been able to use the unbrick methods."?
TheMighyLoki said:
If it is not to late.. What did you mean by "it shows up on my laptop but im running windows 8 and i havent been able to use the unbrick methods."?
Click to expand...
Click to collapse
It seems to show up in device manager when i connect it with my USB as QHSUSB_DLOAD
riki126 said:
It seems to show up in device manager when i connect it with my USB as QHSUSB_DLOAD
Click to expand...
Click to collapse
Sorry I was hoping to help but from a little looking, it is Hard Brick. Sometime its the smallest thing can change everything but not this time.
Sorry and good luck.
TheMighyLoki said:
Sorry I was hoping to help but from a little looking, it is Hard Brick. Sometime its the smallest thing can change everything but not this time.
Sorry and good luck.
Click to expand...
Click to collapse
No harm done haha. ill talk to LG and see what they can do for me. Thanks

[Q] F240L Stuck at Download mode

Hi all,
I just tried to flash Android 5.0.1 kdz on my LG optimus G Pro F240L. The flash was unsuccessful, and all I ended up was with a Download mode. Previously It was on stock 4.1.2. I don't have any recovery installed. Please help me recover my phone. I just bought it (used) yesterday I tried different flashing methods but all in vain
abbykhan said:
Hi all,
I just tried to flash Android 5.0.1 kdz on my LG optimus G Pro F240L. The flash was unsuccessful, and all I ended up was with a Download mode. Previously It was on stock 4.1.2. I don't have any recovery installed. Please help me recover my phone. I just bought it (used) yesterday I tried different flashing methods but all in vain
Click to expand...
Click to collapse
What error you get while installing KDZ??
Waxim1 said:
What error you get while installing KDZ??
Click to expand...
Click to collapse
I got error of "Cannot connect to server" or something like that.. but I found a solution here..
http://www.lg-phones.org/how-to-flash-unbrick-lg-g-pro-2-with-a-kdz-firmware.html
and flashed successfully... Thanks for the response BTW
abbykhan said:
I got error of "Cannot connect to server" or something like that.. but I found a solution here..
http://www.lg-phones.org/how-to-flash-unbrick-lg-g-pro-2-with-a-kdz-firmware.html
and flashed successfully... Thanks for the response BTW
Click to expand...
Click to collapse
Good to know that bro. But it is old method, you don't need to do all this. Just use latest LG flash tool, disconnect from internet and simply run it. You are good to go.
http://forum.xda-developers.com/showthread.php?t=2797190
Waxim1 said:
Good to know that bro. But it is old method, you don't need to do all this. Just use latest LG flash tool, disconnect from internet and simply run it. You are good to go.
http://forum.xda-developers.com/showthread.php?t=2797190
Click to expand...
Click to collapse
tried that method... that also gave me error of connection to server failed
abbykhan said:
tried that method... that also gave me error of connection to server failed
Click to expand...
Click to collapse
It gives if you are connected to internet. You need to dc from internet then run LG flash tool. Once it starts flashing (after 5%), you can connect to internet again.
well, I'm going to sell it now.. I bought it used on olx and yesterday and today I found that it's rear camera is replaced with a third quality camera.... I'll buy Nexus 4 then
Thanks for Your precious time
Waxim1 said:
It gives if you are connected to internet. You need to dc from internet then run LG flash tool. Once it starts flashing (after 5%), you can connect to internet again.
Click to expand...
Click to collapse
thanks solved the issue by getting discounted
but at 99% it says LG user CS Tool : LG mobile application has stopped working...
WTF?
hotcaptain said:
thanks solved the issue by getting discounted
but at 99% it says LG user CS Tool : LG mobile application has stopped working...
WTF?
Click to expand...
Click to collapse
Forget about it, you can dc your cell phone after 95%.
Waxim1 said:
Forget about it, you can dc your cell phone after 95%.
Click to expand...
Click to collapse
thanks for the reply.
now i cant even go to download mode (press volume up while inserting cable)
what went wrong?
hotcaptain said:
thanks for the reply.
now i cant even go to download mode (press volume up while inserting cable)
what went wrong?
Click to expand...
Click to collapse
Is your battery charged?
Waxim1 said:
Forget about it, you can dc your cell phone after 95%.
Click to expand...
Click to collapse
Waxim1 said:
Is your battery charged?
Click to expand...
Click to collapse
yes the battery definitely still has life.
The LG logo showed once even though i am trying to go to download mode... and remains turned off
weird
any solutions?
realized the problem of not going into download mode was because i was using another laptop
disconnecting the phone after 95% dont help either

Bootloop, download mode and TWRP not working

I flashed Fulmic rom for my G3 D855 today. Everything was well when I discovered until I discovered, that camera app is not showing. The fix was to download the fix from Fulmics app and flash it via TWRP. I downloaded the fix and rebooted to install the fix. After reboot I got stuck in bootloop, when I try to access recovery, it goes to TWRP first logo and stays there. Nothing happens. When I try to access download mode, it shows the first download mode logo and stays there. Computer detects the phone in device manager as "LGE Android MTP Device". LGUP shows model as "Unknown". Cant do nothing more. Every help is appreciated.
Are you sure you flashed the fix ? Because it seems like you flashed something else that messed up your device
BrosseLi said:
Are you sure you flashed the fix ? Because it seems like you flashed something else that messed up your device
Click to expand...
Click to collapse
I downloaded the fix, then tried to install it via twrp. But twrp didn't start. So I ran AutoRec again to reinstall TWRP which seemed to go well. Forgot to mention this on first post. After reinstalling TWRP the problems occurred.
RobinNewToGalaxy said:
I downloaded the fix, then tried to install it via twrp. But twrp didn't start. So I ran AutoRec again to reinstall TWRP which seemed to go well. Forgot to mention this on first post. After reinstalling TWRP the problems occurred.
Click to expand...
Click to collapse
Autorec goes on STOCK untouched roms.
bender_007 said:
Autorec goes on STOCK untouched roms.
Click to expand...
Click to collapse
Yes, I know that now
But any idea how to fix it now?
RobinNewToGalaxy said:
Yes, I know that now
But any idea how to fix it now?
Click to expand...
Click to collapse
Let´s see:
-can´t enter twrp ?
-can´t enter download mode ? (volume up and connect to pc)
bender_007 said:
Let´s see:
-can´t enter twrp ?
-can´t enter download mode ? (volume up and connect to pc)
Click to expand...
Click to collapse
Can't enter twrp, just shows TEAMWIN logo with blue background and stripes. Nothing more happens.
Download mode text shows up, pc makes connection sound but I dont know what to do after that. I tried using LGUP but that showed that model is "Unknown".
Ah, try lg flash tool 2014 or lg flashtool (and a tot file), find a thread by hyelton (lg g3 get back to stock), this will help you
RobinNewToGalaxy said:
Can't enter twrp, just shows TEAMWIN logo with blue background and stripes. Nothing more happens.
Download mode text shows up, pc makes connection sound but I dont know what to do after that. I tried using LGUP but that showed that model is "Unknown".
Click to expand...
Click to collapse
https://www.youtube.com/watch?v=1WgXuxDbmbc this video should help you if you can enter download mode
bender_007 said:
Ah, try lg flash tool 2014 or lg flashtool (and a tot file), find a thread by hyelton (lg g3 get back to stock), this will help you
Click to expand...
Click to collapse
I have tried this method also. Every time at 4% it says, error, remove battery and then reconnect and turn on phone. After that, connection with pc is lost.
Also, when I try to get to Download Mode, it should go then to Firmware update screen to? Am I right about that? If so, then it doesn't go to Firmware update screen.
But I tried it with a kdz I had in my computer and had used before. Downloading .tot file atm.
RobinNewToGalaxy said:
I have tried this method also. Every time at 4% it says, error, remove battery and then reconnect and turn on phone. After that, connection with pc is lost.
Also, when I try to get to Download Mode, it should go then to Firmware update screen to? Am I right about that? If so, then it doesn't go to Firmware update screen.
But I tried it with a kdz I had in my computer and had used before. Downloading .tot file atm.
Click to expand...
Click to collapse
did you change the port to com41?
oh, youre downloading the .tot file now, yeah just use the lg flash tool like the dude in the video says it should work if you can enter download mode and it detects the phone, just follow the steps i did it like 2 days ago
STM75 said:
did you change the port to com41?
oh, youre downloading the .tot file now, yeah just use the lg flash tool like the dude in the video says it should work if you can enter download mode and it detects the phone, just follow the steps i did it like 2 days ago
Click to expand...
Click to collapse
it seems to have stopped in LG Flash Tool, where it is saying "Waiting for connection". It has been so for 15 minutes now :crying:
RobinNewToGalaxy said:
it seems to have stopped in LG Flash Tool, where it is saying "Waiting for connection". It has been so for 15 minutes now :crying:
Click to expand...
Click to collapse
did you watch the whole video? try to remove the cable and then put it in a few sec
STM75 said:
did you watch the whole video? try to remove the cable and then put it in a few sec
Click to expand...
Click to collapse
i didn't find a video but a text and pics tutorial which also stated to remove the cable which i did. The "Waiting fo r Connection" text appears after I remove the cable.
RobinNewToGalaxy said:
i didn't find a video but a text and pics tutorial which also stated to remove the cable which i did. The "Waiting fo r Connection" text appears after I remove the cable.
Click to expand...
Click to collapse
https://www.youtube.com/watch?v=1WgXuxDbmbc i sent it before too
STM75 said:
https://www.youtube.com/watch?v=1WgXuxDbmbc i sent it before too
Click to expand...
Click to collapse
Did everything same like in the video but it still stays in "Waiting.." status.
RobinNewToGalaxy said:
Did everything same like in the video but it still stays in "Waiting.." status.
Click to expand...
Click to collapse
are you using a original lg cable? maybe try a diffrent usb port? if youre using a 3.0 port it might not work.
STM75 said:
are you using a original lg cable? maybe try a diffrent usb port? if youre using a 3.0 port it might not work.
Click to expand...
Click to collapse
Original cabel yes, tried another one also. Tried another usb port to, for some reason, it doesn't go to download mode in one port.
RobinNewToGalaxy said:
Original cabel yes, tried another one also. Tried another usb port to, for some reason, it doesn't go to download mode in one port.
Click to expand...
Click to collapse
you changed the port to com41?
RobinNewToGalaxy said:
Original cabel yes, tried another one also. Tried another usb port to, for some reason, it doesn't go to download mode in one port.
Click to expand...
Click to collapse
Also it stays in download mode screen, not Firmware update screen. I don't know if this affects anything.

LGUP unknown model and LG flashtool not working

Hi guys,
i recently use layers for my xenonhd rom (lg f400LL)
and then i reboot then boom it goes bootloop
what i have to do?i hardbrick my phone recently and i fix that by doing the shorwire method
but rightnow i use LGUP but it says that:
http://imgur.com/KTK9Vrb
i can still access download mode but i have problems on accessing the twrp recovery because it always boot on the bootloop,i mean
i have problems on using hardware keys to access twrp.
Sir pls help me
Stiffmeistro said:
Hi guys,
i recently use layers for my xenonhd rom (lg f400LL)
and then i reboot then boom it goes bootloop
what i have to do?i hardbrick my phone recently and i fix that by doing the shorwire method
but rightnow i use LGUP but it says that:
http://imgur.com/KTK9Vrb
i can still access download mode but i have problems on accessing the twrp recovery because it always boot on the bootloop,i mean
i have problems on using hardware keys to access twrp.
Sir pls help me
Click to expand...
Click to collapse
I didn't had the same issue as you, but had a similiar one (phone didn't get discovered neither by LGUP nor LG Flash Tool). Yesterday I fixed it by following this guide:
http://forum.xda-developers.com/showthread.php?t=2785089
In particular the part where you change your device to COM41 in the device manager.
After you get it discovered by LG Flash Tool flash an official KDZ.
Reboot the phone and connect it to your Windows, allow the connection from the phone screen.
It should promt you to install drivers on the computer, do that (they are different from LG Drivers you download from the web mind you)
Now you can change your COM port back to 3 and everything should be fully discoverable by both LGUP and LG Flash Tool.
I think I replied to you on reddit (same photo) Have you tried plugging the phone in while in download mode ? Did you try installing drivers from the internet ? Coz thats how I fixed the same problem you have.
Fluffywolf said:
I think I replied to you on reddit (same photo) Have you tried plugging the phone in while in download mode ? Did you try installing drivers from the internet ? Coz thats how I fixed the same problem you have.
Click to expand...
Click to collapse
engmia said:
I didn't had the same issue as you, but had a similiar one (phone didn't get discovered neither by LGUP nor LG Flash Tool). Yesterday I fixed it by following this guide:
http://forum.xda-developers.com/showthread.php?t=2785089
In particular the part where you change your device to COM41 in the device manager.
After you get it discovered by LG Flash Tool flash an official KDZ.
Reboot the phone and connect it to your Windows, allow the connection from the phone screen.
It should promt you to install drivers on the computer, do that (they are different from LG Drivers you download from the web mind you)
Now you can change your COM port back to 3 and everything should be fully discoverable by both LGUP and LG Flash Tool.
Click to expand...
Click to collapse
Hey Bro'ssss
now i am stuck on the recovery
i always flash the rom but when i boot it always go to the recovery(twrp)
Stiffmeistro said:
Hey Bro'ssss
now i am stuck on the recovery
i always flash the rom but when i boot it always go to the recovery(twrp)
Click to expand...
Click to collapse
The method I'm describing uses Download Mode so it should work for you.. Try it and tell us the result
engmia said:
The method I'm describing uses Download Mode so it should work for you.. Try it and tell us the result
Click to expand...
Click to collapse
Thanks man its all ok now
i dont have time to explained what i did but it works
Many thanks to all of you
hey guys, LGUP will not see my phone at all(LGV10) its in download mode , but does not come up. its stuck on LG boot screen and wont go past it. any help would be appreciated... I am, or was rooted anyway, and trying to reflash again. need to in order to fix it now. thanx
1SouthernCanuck said:
hey guys, LGUP will not see my phone at all(LGV10) its in download mode , but does not come up. its stuck on LG boot screen and wont go past it. any help would be appreciated... I am, or was rooted anyway, and trying to reflash again. need to in order to fix it now. thanx
Click to expand...
Click to collapse
Just read over the thread, it's what it's here for.
Stiffmeistro said:
i dont have time to explained what i did but it works
Click to expand...
Click to collapse
You asked for other people's time to help you, but now you don't have time to explain how you made it work?
Yeah... there MIGHT be other people with the same problem, but why would you care to share.
What an as*hole you are. Another typical new buttuser ruining a great dev community.
exactly
leandeganis said:
You asked for other people's time to help you, but now you don't have time to explain how you made it work?
Yeah... there MIGHT be other people with the same problem, but why would you care to share.
What an as*hole you are. Another typical new buttuser ruining a great dev community.
Click to expand...
Click to collapse
Exactly, here I am running around in circles over this BOOST Stylo 2, just got it with MM 6.0.1 out of the box 2 days ago. I caught the 454.4mb update it has been trying to do! Got that baby downloaded! 1.02gb unzipped and renamed to kdz. Got a script for Terminal that will replace Kingroot's temp root with SuperSU but I am not going to attempt any further until I know LGUP will recognize and flash my .zip the bas****s deem not worth enough to put up for download on LG's site!
I got LGUP to recognize it in download mode, reads out LGLS775 but still says it cannot open it...............
His info on how he got it to work would prolly have solved this dillema..............
oh well
zach
ok had a LG G3 that's done this- as long as you can get download mode it should recover, YOU need to use the LG mobile support tool from LG website ( LG UP sees phone as unknown model ) run LG mobile Support tool and in option choose UPGRADE RECOVERY . follow instructions and allow to start process, it took 57 minutes to repair my phone - it will seem frozen anywhere from 0% to about 22% JUST WAIT IT OUT!! lg up / twrp flashes in 5 to 10 mins -- the LG m.s.t writes block by block and takes 1 hour +
so hints and info took 3 goes to find and start upgrade recovery - error on a couple of attempts. phone seems frozen around 10% and 15% of firmware upload -- go make a coffee drink it, go pee then come back and worry! A watched pot never boils!....
Stiffmeistro said:
Thanks man its all ok now
i dont have time to explained what i did but it works
Many thanks to all of you
Click to expand...
Click to collapse
please tell me how to solved your problem my D682 deivce is always opening on recovery but there is no recovery menu just android robot
I have same issue as op described .After unbrick my g3 f400s by short wire method i get error at 94% in tot method and red screen show these word error wrong qem =0 .After remove and put battery again mobile runing but without baseband and null imei .Plz help i need really help
Same here. LGUP Says it is not recognized, even if it says it's a LG G3 855... Trying the LG Mobile Support Tools -> UPGRADE RECOVERY using my Model/serial.
Downloading right now...
Hope it works.
I will tell you when/if I got it to work
Also: Stiffmeistro you're a ****...
---------- Post added at 03:33 AM ---------- Previous post was at 03:22 AM ----------
Sedado77 said:
Same here. LGUP Says it is not recognized, even if it says it's a LG G3 855... Trying the LG Mobile Support Tools -> UPGRADE RECOVERY using my Model/serial.
Downloading right now...
Hope it works.
I will tell you when/if I got it to work
Also: Stiffmeistro you're a ****...
Click to expand...
Click to collapse
It didn't. It's EVEN MORE broken :'(
I figured out how to get my PC to recognize my D851. Apparently all the LG software didn't like how many COM ports I have. As soon as I unplugged everything else from my PC, the software worked. In this case, it was LG Flash Tool 2014, but I couldn't get any of them to work before.
Try running LGUP as Admin!!! For me it worked!
Try running LGUP as Admin!!! For me it worked!
Thankx Bro Its Work
engmia said:
The method I'm describing uses Download Mode so it should work for you.. Try it and tell us the result
Click to expand...
Click to collapse
Hope someone can help me. I flashed a rom for a d855, d855g30 I think, and although I can access download mode all aps for flashing fail saying it's the wrong model number. Even the generic DLL file cant trick it. It still starts booting the rom but boot loops before entering. I no longer have twrp and when I try to do safe mode or factory reset I get a boot validation error or something similar. Just seem to be stuck. Im using a VS985.
One cause of LGUP "UNKNOWN"
While an old thread, it'll be found in searches. For anybody who gets "UNKNOWN" device with LGUP for the LG G3, I found that LGUP for the G3 is often distributed with the wrong DLL file. See the details here, post #11. After installing LGUP, make sure that the "model" subdirectory in the LGUP program directory is the same number as the processor in your phone, in my case c:\Program Files (x86)\LG Electronics\LGUP\model\8974 (was 8994 with the "LGUP for G3" I downloaded).
HTH

Bricked LG-D852 ''Communication failed with device'' LG Flash Tool

Long story short, I tried flashing an older version of the firmware because I was having constant wifi issues even with a factory reset.
Everything went well, the phone rebooted with the android character on its back with the trunk open and the progress bar loaded until it froze. Now every times I try to boot it there's the droid on its back with the frozen loading bar.
Then when trying again to flash the stock rom using the COM41 LG flash tool, it keeps saying ''communication failed with device''
Here's everything I tried:
-De-installing and re-installing the LG drivers
-Tried the LG Flash tool method with 4 different computers and I still have the communication failed with device error
-The qualcom 9008 method where you need to short the ground with another pin
-Tried using LG's own tool from their websites to try updating or use the update recovery and it still gave the communication error
I can still boot it into download mode so there is still hope right?
Which is very annoying is that I still have 175$ to pay on it and LG's ''one price repair'' costs 150$...
Thanks in advance for your advices
Liquid_chicken said:
Long story short, I tried flashing an older version of the firmware because I was having constant wifi issues even with a factory reset.
Everything went well, the phone rebooted with the android character on its back with the trunk open and the progress bar loaded until it froze. Now every times I try to boot it there's the droid on its back with the frozen loading bar.
Then when trying again to flash the stock rom using the COM41 LG flash tool, it keeps saying ''communication failed with device''
Here's everything I tried:
-De-installing and re-installing the LG drivers
-Tried the LG Flash tool method with 4 different computers and I still have the communication failed with device error
-The qualcom 9008 method where you need to short the ground with another pin
-Tried using LG's own tool from their websites to try updating or use the update recovery and it still gave the communication error
I can still boot it into download mode so there is still hope right?
Which is very annoying is that I still have 175$ to pay on it and LG's ''one price repair'' costs 150$...
Thanks in advance for your advices
Click to expand...
Click to collapse
By chance have you tried the stock reocvery or factory reset
Also you can try LG Up to see if it works The G5 threads some where has a modded version with refurb options
I was faced with a mjor hardware issue that would be flashed out stock with flash tool Had to use the refurb option with UP
TheMadScientist said:
By chance have you tried the stock reocvery or factory reset
Also you can try LG Up to see if it works The G5 threads some where has a modded version with refurb options
I was faced with a mjor hardware issue that would be flashed out stock with flash tool Had to use the refurb option with UP
Click to expand...
Click to collapse
I'll have a look at this! Will report results soon!
TheMadScientist said:
By chance have you tried the stock reocvery or factory reset
Also you can try LG Up to see if it works The G5 threads some where has a modded version with refurb options
I was faced with a mjor hardware issue that would be flashed out stock with flash tool Had to use the refurb option with UP
Click to expand...
Click to collapse
I've found the LGUP tool on the G5 thread and I've unlocked the hidden features. Except I keep having the communication failed issue.
Both the LGUP and LG Flash tool make the same results it gets up to 6% says: ''LAF with a few numbers LAF 567.878.XXX as example'' then gives the failed to communicate with device
Liquid_chicken said:
I've found the LGUP tool on the G5 thread and I've unlocked the hidden features. Except I keep having the communication failed issue.
Both the LGUP and LG Flash tool make the same results it gets up to 6% says: ''LAF with a few numbers LAF 567.878.XXX as example'' then gives the failed to communicate with device
Click to expand...
Click to collapse
And your in download mode Com 41 I see uve tried diffrent pcs what about diffrent cables?
i'm gonna upgrade to the lg g6 soon but i used to have a g3 and i wanted to downgrade so could root and get twrp, i used lg up but the same thing happened, Andy was on his back and it was stuck on that screen and i tried to fix it for months i tried everything but... nothing, until i soon realized that i was a hardware issue. so i had to get it fixed i upgraded to a g4 soon after. so your only options... get it fixed or buy a new g3
moreogthanu said:
i'm gonna upgrade to the lg q6 soon but i used to have a g3 and i wanted to downgrade so could root and get twrp, i used lg up but the same thing happened, Andy was on his back and it was stuck on that screen and i tried to fix it for months i tried everything but... nothing, until i soon realized that i was a hardware issue. so i had to get it fixed i upgraded to a g4 soon after. so your only options... get it fixed or buy a new g3
Click to expand...
Click to collapse
Looks like I'm pretty much in the same situation . I used to have a galaxy S4, every time I thought it was dead I would find a way to bring it back to life. Even my other G3 "D851 model from T-Mobile" which I did about the same manipulations in the same goal and didn't have any issues with it.
TheMadScientist said:
And your in download mode Com 41 I see uve tried diffrent pcs what about diffrent cables?
Click to expand...
Click to collapse
All of these I've tried them and same result :/
Liquid_chicken said:
All of these I've tried them and same result :/
Click to expand...
Click to collapse
Man Does device manager pick it up at all on pc?
TheMadScientist said:
Man Does device manager pick it up at all on pc?
Click to expand...
Click to collapse
Yes! That's the worst thing! I can set it to COM PORT 41. Then when I start the Flashing with LG Flash Tool, the phone displays COM 41 in green and the complete name of the .tot file even appears of the screen of the phone!
Liquid_chicken said:
Yes! That's the worst thing! I can set it to COM PORT 41. Then when I start the Flashing with LG Flash Tool, the phone displays COM 41 in green and complete name of the .tot file even appears of the screen of the phone!
Click to expand...
Click to collapse
This is weird All the pcs you used which versions of windows some pcs and flashtool with win 10 had issues
TheMadScientist said:
This is weird All the pcs you used which versions of windows some pcs and flashtool with win 10 had issues
Click to expand...
Click to collapse
I even tried in a Windows 7 pc :'(
Liquid_chicken said:
I even tried in a Windows 7 pc :'(
Click to expand...
Click to collapse
ok i will look some more
Thanks a lot
Liquid_chicken said:
Looks like I'm pretty much in the same situation . I used to have a galaxy S4, every time I thought it was dead I would find a way to bring it back to life. Even my other G3 "D851 model from T-Mobile" which I did about the same manipulations in the same goal and didn't have any issues with it.
Click to expand...
Click to collapse
If you used LGUP that definitely the reason your phone is in the state it's in. If i buy a cheap g3 off of somewhere and downgrade it I'll never use LGUP. lg flash tool is your best option though I'm getting a g6, cause the g3 is old now i think you should upgrade if an upgrade is your thing the i got some good phones on my list. But if you're gonna stick with the g3 then they sell 'em for pretty cheap and if you're gonna downgrade to 4.4.2 kk then use lg flash tool. If you're gonna downgrade to 5.0 or upgrade (not really) to 6.0 then use the modified lg flash tool 2014. All i gotta say is you're phone is done i learned it the hard way
Liquid_chicken said:
I even tried in a Windows 7 pc :'(
Click to expand...
Click to collapse
Thats what its looking like I have looked over a bunch of stuff and you have tried everything short of jtag....
Which Prob is not worth paying some one to try to fix mother boards are cheap.... But s stated the device is a great device but she is starting to show her age....
TheMadScientist said:
Thats what its looking like I have looked over a bunch of stuff and you have tried everything short of jtag....
Which Prob is not worth paying some one to try to fix mother boards are cheap.... But s stated the device is a great device but she is starting to show her age....
Click to expand...
Click to collapse
Yeah :/ it'll teach me to stop wanting to crack every phone that falls in my hands. Just to bad I still owe money on it though. I doubt selling it on auction for parts on eBay would even be worth it.
I got the same problem with my LG G3 D852. I have tried multiple USB cables and USB ports. I can get into download mode easily, factory reset just returns to the same problem with a Droid open hatch and spinning wired shape and a bar on the bottom. I have tried LG flash tool and LGUP, but both fail at 6% with a communication error. I think the problem is my USB cable, but that is just my guess. I have followed the guides on the forms on this site, that is the only conclusion I can come up with.

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