Develop Bugs

[Q] My G3 is Softbricked - $20 to the first person that can help me fix it!

I'm going crazy here and I need my phone to work!
I have an LG G3 on Verizon.
I rooted it and edited a part of build.prop to change the DPI which got the phone stuck in a boot loop and kept popping up "the process com.android.systemui has stopped.
I tried clearing cache
I tried booting in safe mode
I then did a factory reset
My phone boots up to the Setup Wizard screen but I am STILL getting that systemui error and a com.android.phone and I can't get any further than that screen.
I then tried to use the LG FlashTool to just wipe the entire ROM and replace it with the stock one from Verizon.
This gave me a "Model Information Check FAIL!" error but I DO have the right ROM for my phone. There's only one for the Verizon G3 as far as I can tell
This led me to realizing that there is something in the build.prop that's making LGFlashTool think the proper rom actually isn't right.
I then installed the Android SDK so I can ADB into my phone. but whenever I run "abd devices" nothing shows up in the list.
I was told USB Debugging needs to be turned on in order for this to work, I don't remember if it's turned on or not with my phone and I can't get past the Setup Wizard to edit anything. I wonder if ADB is even running properly on my phone or if these errors are stopping it?
I will gladly paypal someone $20 if they can get this working for me.

Did you tried this?
http://forum.xda-developers.com/showthread.php?t=2772199

droidhd said:
Did you tried this?
http://forum.xda-developers.com/showthread.php?t=2772199
Click to expand...
Click to collapse
yes I did, that's where I got the "Model Information Check FAIL!" error

And what about this guide (if you can enter download mode):
http://forum.xda-developers.com/showthread.php?t=2785089
8) When the firmware is downloaded, boot your LG G3 into Download Mode. To do this, press and hold the Volume Up key and then plug the USB cable.
Click to expand...
Click to collapse
One of my friends saved his phone by this guide

Download mode - LG PC Suite - Restore update error.
1. Remove battery
2. Boot phone into download mode
3. Open LG PC Suite - restore update error
This method have saved me a few times.

Will adb work in one of the recovery modes even if it wasn't enabled in the full boot mode? If so, start there.
Sent from my LGLS990 using XDA Free mobile app

Regarding your USB debugging question, you would have had to turn it on in order to root the phone originally, right? If so I imagine it would still be on unless you unchecked it. You have the proper drivers set up? Anytime I've encountered issues with adb devices not returning any results the issue has been drivers.
Good luck.

droidhd said:
And what about this guide (if you can enter download mode):
http://forum.xda-developers.com/showthread.php?t=2785089
One of my friends saved his phone by this guide
Click to expand...
Click to collapse
Yup! I tried that. I got the "Model Information Check FAIL!" error
robalm said:
Download mode - LG PC Suite - Restore update error.
1. Remove battery
2. Boot phone into download mode
3. Open LG PC Suite - restore update error
This method have saved me a few times.
Click to expand...
Click to collapse
Hey thank, I haden't tried this but just gave it a go and the program is giving me errors when I try to restore update error. I don't think it's connecting to the phone.
SilverZero said:
Will adb work in one of the recovery modes even if it wasn't enabled in the full boot mode? If so, start there.
Sent from my LGLS990 using XDA Free mobile app
Click to expand...
Click to collapse
What do you mean recovery modes? You mean like Safe mode? I actually haven't tried that. I'll give it a go.
Rodeojones said:
Regarding your USB debugging question, you would have had to turn it on in order to root the phone originally, right? If so I imagine it would still be on unless you unchecked it. You have the proper drivers set up? Anytime I've encountered issues with adb devices not returning any results the issue has been drivers.
Good luck.
Click to expand...
Click to collapse
I believe I have the proper drivers, I installed drivers and the phone is showing up in device manager as Alright.

Try hooking it up to the lg support tool and select uprade recovery.
Download and install support tool
Open tool
Plug in phone with phone on.
Top right select options/upgrade recovery
Let it do its thing.
Lg support tool
https://www.dropbox.com/s/1ckig41xdqoi2u1/B2CAppSetup.exe?dl=0

When you looked for phone in device manager did you change the port to com41? I forgot to do that and got the error in LG Flash Tool

Bro your motherboard is done with take it to service center

Hey everyone...it ended up being a stupid fix, I just tried flashing it on another computer and I didn't get the error? I have no idea why it worked.

jpf566 said:
Hey everyone...it ended up being a stupid fix, I just tried flashing it on another computer and I didn't get the error? I have no idea why it worked.
Click to expand...
Click to collapse
Oh man should've told you that. Sometimes its just a driver acting up and you have to manually delete them in the device manager. Sometimes there marked with a symbol .
please hit thanks if i helped in any way. send from my g3 d852 beast

jpf566 said:
Hey everyone...it ended up being a stupid fix, I just tried flashing it on another computer and I didn't get the error? I have no idea why it worked.
Click to expand...
Click to collapse
Sometimes it's the simplest solution that's hardest to find. Glad it all worked out for you.

So who won the 20 bucks? XD

Money's not important. The problem' fixed, this is what's important ; )

Ferindel said:
Money's not important. The problem' fixed, this is what's important ; )
Click to expand...
Click to collapse
True! that's what this forum is about :highfive:

Can't use LG Flash tool

I tried to flash latest 10L firmware, but I always get the messages Problem with communication between cell phone and PC. I did everything as instructed, selected Normal flash, but it won't work. I installed needed drivers, but when I reboot to Downloading mode, there is Exclamation sign in device manager. What could be the problem?

Did you change the port to com41?
Also are you using windows 8? If you are you need to disable signature verification.

I don't know how to change port to com41. I am using Windows 7.

TwinHeadedEagle said:
I don't know how to change port to com41. I am using Windows 7.
Click to expand...
Click to collapse
It's in the guide that you said you followed. Open your device manager in windows and right click on the lg device that shows up. Next hut advanced and change the port to com41 and then click ok.

I did that, and it still shows the same message.

Bump
Sent from my LG G3 using Tapatalk

TwinHeadedEagle said:
I tried to flash latest 10L firmware, but I always get the messages Problem with communication between cell phone and PC. I did everything as instructed, selected Normal flash, but it won't work. I installed needed drivers, but when I reboot to Downloading mode, there is Exclamation sign in device manager. What could be the problem?
Click to expand...
Click to collapse
Hi did you fix it?
I encountered the same problem. Thanks.

I didn't fix it, problem is still there.
Sent from my LG G3 using Tapatalk

Please state the exact link to the guide you're using, your phone model number and windows version.

Thanks for responding.
I tried to follow several guides, but none of them works.
I think I tried this one first --> http://forum.xda-developers.com/showthread.php?t=2785089
LG G3 International 32gb D855
v10i currently installed
Phone rooted with Bump TWRP

Bump.

Did you install the latest LG drivers for your phone? I don't know why this didn't occur to me earlier but that plays a big part in the PC seeing your phone.

Yes, I have driver. PC Suite works, everything works, but Flash tool doesn't.
Sent from my LG G3 using Tapatalk

Could this be connected with bump twrp. Maybe it is blocking this somehow.
Sent from my LG G3 using Tapatalk

Problem solved, I was using different PC and it worked

TwinHeadedEagle said:
Thanks for responding.
I tried to follow several guides, but none of them works.
I think I tried this one first --> http://forum.xda-developers.com/showthread.php?t=2785089
LG G3 International 32gb D855
v10i currently installed
Phone rooted with Bump TWRP
Click to expand...
Click to collapse
You've got to boot into download mode and then use the LG FLash Tool 2014. There's one error stating there is an error with a connection, just ignore it and watch your phone screen! If it tells you stuff like the current version and the version it is about to install, just let it sit and wait till it reboots automatically.
The reason I am saying is because you say "Problem with communication between cell phone and PC" and it looks like the error that is supposed to show up.
Could you please re-do the process, maybe re-install the LG drivers and use LG FLash Tool again. If you encounter any error either make a screenshot or type the EXACT error message in here.
Good luck

I solved the problem.
Sent from my LG G3 using Tapatalk

For all who is experiencing the same thing problem is in 64bit OS but it is not a rule. People reported that they were succesfully flashed their devices on win7 x64. If you want to be sure use x86 windows and it should be working.

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

Cannot flash lg-h815

Hello, i have an LG-H815 mobile stuck on boot screen and im trying to flash it with LG Flash Tool 2014. I installed the drivers LGMobileDriver_WHQL_Ver_4.0.4_2 and connected the phone in download mode. Selected CS_EMERGENCY and the kdz file: H81520B_00.kdz. Now i try to CSE Flash and selected START. Then the process starts and i get "connection to server failed". I think driver problem.....check the attachment...btw using windows 7
Help....

andrew21 said:
Hello, i have an LG-H815 mobile stuck on boot screen and im trying to flash it with LG Flash Tool 2014. I installed the drivers LGMobileDriver_WHQL_Ver_4.0.4_2 and connected the phone in download mode. Selected CS_EMERGENCY and the kdz file: H81520B_00.kdz. Now i try to CSE Flash and selected START. Then the process starts and i get "connection to server failed". I think driver problem.....check the attachment...btw using windows 7
Help....
Click to expand...
Click to collapse
why not use LG G4 LGUP google it. for KDZ's

Can I use in Windows 10 and what about driver, it's not installing?

andrew21 said:
Can I use in Windows 10 and what about driver, it's not installing?
Click to expand...
Click to collapse
not sure , but if i remeber right. they talk about win10 compatibility i think use other computer like win7.
like i said not really sure read the thread for go back to stock.. it should say or the LGUP KDZ thread.
am on win 7 works okey.

How do I know which firmware to download for LG-H815? Tried searching by IMEI but didn't find anything. Also, for drivers I read somewhere that I should do Windows update.

andrew21 said:
How do I know which firmware to download for LG-H815? Tried searching by IMEI but didn't find anything. Also, for drivers I read somewhere that I should do Windows update.
Click to expand...
Click to collapse
Not sure about your KDZ better ask here and as for driveres i have the same i think..no need to update..
http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848

Does anyone have a solution to my driver problem please?

andrew21 said:
Does anyone have a solution to my driver problem please?
Click to expand...
Click to collapse
Only drivers i've used for lgup are the LGMobileDriver_WHQL_Ver_4.0.4, covers the spectrum of mtp etc

Ok I'll try it out..... Thanks

andrew21 said:
Does anyone have a solution to my driver problem please?
Click to expand...
Click to collapse
Sometimes its actually normal when the process shows error let it finish completely if not ur stuck with using LG UP its easy
Sent from my LG-H815 using XDA-Developers mobile app