Develop Bugs

[Q] Error lg mobile support tool

Hello everyone I have a problem with LG Mobile Support Tool.
Every time I follow a guide for unbrick my phone gives me this error:
Please disconnect the cable from your cell phone in order and remove and connect the battery.
Power on your cell phone and press the Restart button to resume update.
If LG Support Tool is stopped abnormally, try with [Options] - [Upgrade Recovery] in the tool menu.
The error is when it comes to 13-15%
I tried to reinstall it but nothing changes.
has anyone had this problem and how did you solve it?
goodbye
sorry for my bad english :/

Yeah,kdz updater. If you have an aosp rom installed,lg mobile tool won't work. Click my signature and read there
Sent from my EchoEd GT-I9505/smart phones,dumb people.

Did you end up getting this fixed?
I have the same problem. Did you end up getting this resolved? If so what did you do?

oaksu said:
I have the same problem. Did you end up getting this resolved? If so what did you do?
Click to expand...
Click to collapse
me too

oaksu said:
I have the same problem. Did you end up getting this resolved? If so what did you do?
Click to expand...
Click to collapse
crizalid8 said:
me too
Click to expand...
Click to collapse
Do you guys have acces to recovery mode?
If so, then you should be able to flash a custom rom through adb sideload function.
If not, then either of these threads might help you out:
http://forum.xda-developers.com/showthread.php?t=2010624
http://forum.xda-developers.com/showthread.php?t=2249500

howaboudno said:
Do you guys have acces to recovery mode?
If so, then you should be able to flash a custom rom through adb sideload function.
If not, then either of these threads might help you out:
http://forum.xda-developers.com/showthread.php?t=2010624
http://forum.xda-developers.com/showthread.php?t=2249500
Click to expand...
Click to collapse
problem solved
I used lg flash tool
select type: CDMA
phone mode: CS_EMERGENCY
CSE Flash
sorry for my bad english

Brooken :(

I got a bootloop and i have been trying to fix it, but now the phone is not even seen in windows.
The phone only go to firmware update.
Is there anything i can do?

Wow, after 4-5h i finally got it it up and working :angel:
I almost give up there.

robalm said:
Wow, after 4-5h i finally got it it up and working :angel:
I almost give up there.
Click to expand...
Click to collapse
Thanks for the explanation how you solved it

Pfeffernuss said:
Thanks for the explanation how you solved it
Click to expand...
Click to collapse
First i tested LG PC Suite (i did not get in from LG) if must have been a bad old version if was stock in repair 49% for about 60min and after that the phone did not get recognised at all on the computer (tested on windows 8.1 & 7)
I even tested LG Flash Tool 2014 and downloaded firmware from LG via the IMEI, but did not get recognised at all when i tried to flash the firmware.
But in the end i got it got fixed thanks to LG PC Suite (downloaded if from LG and) and got it fixed by "repair"

[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:

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.

help needed cable disconnecting

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?