Download mode and LG mobile support tool not working - G2 Q&A, Help & Troubleshooting

Hello all,
usually i deal with my problems by searching the forum, though this time i am really worried as i cant find anything to my help.
You see something went bad with the screen and because the phone is rooted, i cant get it fixed (it is still in warranty), nor can i use it (the touch sucks).
So i am trying to get it unrooted.
So i have downloaded LG mobile support tool and the drivers, i enter the phone to download mode and nothing happens. i get all the time errors. Also, in the lg mobile support tool, i see a software update. Should i do it? I cant though because the start upgrade button is greyed out, and the "LGD802" sign on the left pane is flushing like its trying to verify my g2. Also, should i wait for like 10 minutes or so when i enter download mode for the bar seen at the phone to be completed before the whole process? Lastly, the most of times the lg mobile support tool crashes on the pc.
Please help me folks... :/

the problem is when i hook my phone up the pc and it recognizes it, it starts the download drivers part but it freezes and force closes...

Related

plzzzzzzzzz help with my dead gt540

i have lg gt540 and while updating to 2.1 with kdz tool the pc crashed now i cant turn on the phone...i hope some one help me with that
Have you tried updating again?
the problem the the phone dont open when i press power button there is nothing
what about when plugged into pc?
first thx for replying but there is nothing when i connect it to pc i think it needs abootloader.i hope u answer me
im afraid im pretty new to android ( gt540 is my first smartphone ) but anytime i updated, everything went ok, in fact yours is the first time i heard of a crash while updating so i cant give you much info but your in the right place, im sure the devs can figure something for you. just try remove the battery and then plug into your pc. and its not a problem replying just wish i could help.
well, did you try with the battery removed?
yes i did nd there is nothing
plz any one help in that
plz some one tell me how to make abootloader to it i have another lg gt540 i want to know if i can use it to repair the bootloader for this dead phone
The problem is theres noway u can acces inside the phone memory to patch bootloader. Go to lg waranty and tell them this happened when u were updating phone, dont tell them that pc crashed, tell them u updatet through lgsupport tool too, not through kdz updater they should fix it for u.
Sent from my GT540
thx for replying i will call them tomoorow i hope they will fix it for me... i want to ask if some one has passed with the same problem b4
Goto Emergency Mode, and upgrade from KDZ program. In KDZ program, you must setting Phone Mode to CS_Emergency. And flash agan.
i sent them email about the problem and this was the reply
Thank you for your email regarding this issue.
Unfortunately due to the nature of this issue, you will no longer be able to finish the update service. In this case you would be required to return to ourselves for servicing. To action this please contact the number below with your reciept and handset to hand.
If you have any further queries, please do not hesitate to contact us again.
Best regards,
LG Electronics UK Helpdesk
can any one tell me what should i do
Remove battery press volume - or + I can't remember try two options, then plug in usb.
You should see blue screen with DOWNLOAD or EMERGENCY MODE text.
i tried all keys combination nothing work
my mobile internet went dead after flashing quarx rom (I did it wrong btw...), but everything else worked fine.
I couldn't get mobile internet back on track no matter what (it was disabled in quick settings when I flashed quarx), I even tried factory reset and flashing the baltic rom. during the flashing, the kdz updater gave me an error close to the end, and my phone became stuck at the android screen.
even though I have CWR installed, so I could flash it again, I sent it to LG claiming I was updating through their website and since my phone doesn't start. I didn't tell them anything about the mobile internet not working. Hopefully they'll clean the phone completely and that will fix it.
I'll be picking up my phone after work today, I'll let you know how it went.
Same thing Happened to me n almost **** my pants for killing my brand new phone..
follow these steps
1. volume +or-(i dont remember) +camera n power on. it should turn on n say downloading mode.
2. update( you can use kdz updater, it probably wont crash this time but even if gets stuck just w8 for it)
3. after updating, remove the usb cable n turn on the phone, hopefully it would work
4. ENJOY ( N THINK TWICE BEFORE EFFING WITH THE PHONE, )
i am not sure about the keys for emergency/downloading mode(i think it was vol-) GOOGLE IT IF KEYS DONT WORK.
Put to microwave on 2 sec without battery and send do service
my service provider fixed my phone in 3 days without any issues, they flashed the t-mobile branded 2.1 on it. went home and now I have the open europe with fastboot and cwr.
so if all else fails, just send it to LG or your provider.
cheers!

Can't unbrick Optimus l5

Hello, I ran into a problematic brick on my L5...nothing seems to work to unbrick it.
I followed the guides step by step using the KDZ updater and the appropriate firmware for my country, but it doesn't work.
How I bricked it:
I had CM10 installed and perfectly running for a month, so today I decided to attempt an overclock to speed the device up a bit.
So, I downloaded and installed the modded kernel, flashed it using CWM and rebooted the device. After that, the device just keep booting up, showing the LG logo and then a black screen.
Now, after trying to flash the old firmware after going into download mode it just stops on the LG logo with the flare (sun ray effect) spinning around the logo all the time...It's been like that for almost 30 minutes now. I attempted re-flashing it 3 times but nothing seems to work.
What do I do?
Thank you in advance.
It's bootloop. When I had L5 I had the same problem after flashing bricked phone via KDZ.
Do hard reset with key combination. It worked for me. Phone will boot up few minutes.
LeoFalto said:
Hello, I ran into a problematic brick on my L5...nothing seems to work to unbrick it.
I followed the guides step by step using the KDZ updater and the appropriate firmware for my country, but it doesn't work.
How I bricked it:
I had CM10 installed and perfectly running for a month, so today I decided to attempt an overclock to speed the device up a bit.
So, I downloaded and installed the modded kernel, flashed it using CWM and rebooted the device. After that, the device just keep booting up, showing the LG logo and then a black screen.
Now, after trying to flash the old firmware after going into download mode it just stops on the LG logo with the flare (sun ray effect) spinning around the logo all the time...It's been like that for almost 30 minutes now. I attempted re-flashing it 3 times but nothing seems to work.
What do I do?
Thank you in advance.
Click to expand...
Click to collapse
I was forced to do a hard reset...that sucks but it had to be done.
Thank you.
I have a worst brick, I was rebooting when my phone frozen at the shuting down page, so I took out the batterie, then when I tried to turn on .... nothing, not even lg logo, nor buttons lights, ... nothing, I can't even activate download mode to reflash it!!! what can I do???, does anyone had same problem before
please help me I'm really starting to freack
aeoros said:
I have a worst brick, I was rebooting when my phone frozen at the shuting down page, so I took out the batterie, then when I tried to turn on .... nothing, not even lg logo, nor buttons lights, ... nothing, I can't even activate download mode to reflash it!!! what can I do???, does anyone had same problem before
please help me I'm really starting to freack
Click to expand...
Click to collapse
i had the same problem with my l7 ... problem was solved in an authorized gsm service with jtag method...
but i will try to help u with this... Your phone is seen in device manager as unknown or lge android platform or adb ... ? if so, try with adb sdk tools...
nastase.alex said:
i had the same problem with my l7 ... problem was solved in an authorized gsm service with jtag method...
but i will try to help u with this... Your phone is seen in device manager as unknown or lge android platform or adb ... ? if so, try with adb sdk tools...
Click to expand...
Click to collapse
nop, it's like the device is dead,
Have you tried it:
Hold together volumn (-) + home button, then turn the power on
sorry for the delay, The phone was dead so I send it to the warranty and they send it to LG and then returned working so I just had to reroot it and update it again
so there is no solution to this brick???
aeoros said:
sorry for the delay, The phone was dead so I send it to the warranty and they send it to LG and then returned working so I just had to reroot it and update it again
Click to expand...
Click to collapse
Quote:
Originally Posted by breakercris
I've tried everything.
The phone simply doesn't connect.
USB\VID_05C6&PID_9008&REV_0000
This is what I get when I connect the phone by USB.
I just cant get into emergency, DIAG or emergency CS
KDZ the phone connects and then I get a message afterwards PHONE NOT FOUND.
everytime I install the drivers by LG support tool, it keeps giving me the option to install the driver, like I havent done it a hundred times over.
I think there should be a driver somewhere that can be installed but the only people that have this driver are LG tech's. So they can bill you after
send the phone in cause you rooted it. So the one billion dollar question is witch hero will find a way to unbrick this device. We only need a way
to get a driver to install and we are home free. Or maybe the only other option is throwing the phone for sale on internet for spare parts
HELP PLEASE HELP find a way to unbrick this phone. Believe me I flashed and bricked alot of different phones and there was a way out but in
with this phone it seems impossible!!
And there is no mode to put it in in because te volume buttons don't do crap, the home button also, the only time that the phone does show up is when windows tells me it has an unknown device that I for the love of god can't find a driver for. I tried SDK, the LG drivers, but no dice
Did you try emergency mode? (volume up + volume down + power button)
If not, see if you can enter it and then flashing your stock firmware with Software update [KDZ] 1.0.4.4 (KDZ-Flasher).

lg mobile support tool problem with communication between cellphone and pc

I Cant Get My Phone Back To Stock 4.2. I Am Rooted Currently Running 4.4 (D801)
Ive Rooted & Unrooted Multiple Times But Now My Phone Boots Into Download Mode & Its Unresponsive The LG Mobile Support Tool Keeps Saying "problem with communication between cellphone and pc" I Dont Have A Custom Recovery Because Of The Update.
My Phone Isn't Bricked It Actually Boots Up & Works.
Can Someone Help Me Out, I Just Want Download Mode Working Again Because Thats Basically The Last Hope If I Mess Up Testing Out Something Like I Have Before

lg g2 trying to unroot

Hello all,
usually i deal with my problems by searching the forum, though this time i am really worried as i cant find anything to my help.
You see something went bad with the screen and because the phone is rooted, i cant get it fixed (it is still in warranty), nor can i use it (the touch sucks).
So i am trying to get it unrooted.
So i have downloaded LG mobile support tool and the drivers, i enter the phone to download mode and nothing happens. i get all the time errors. Also, in the lg mobile support tool, i see a software update. Should i do it? I cant though because the start upgrade button is greyed out, and the "LGD802" sign on the left pane is flushing like its trying to verify my g2. Also, should i wait for like 10 minutes or so when i enter download mode for the bar seen at the phone to be completed before the whole process? Lastly, the most of times the lg mobile support tool crashes on the pc.
Please help me folks... :/
spirios1992 said:
Hello all,
usually i deal with my problems by searching the forum, though this time i am really worried as i cant find anything to my help.
You see something went bad with the screen and because the phone is rooted, i cant get it fixed (it is still in warranty), nor can i use it (the touch sucks).
So i am trying to get it unrooted.
So i have downloaded LG mobile support tool and the drivers, i enter the phone to download mode and nothing happens. i get all the time errors. Also, in the lg mobile support tool, i see a software update. Should i do it? I cant though because the start upgrade button is greyed out, and the "LGD802" sign on the left pane is flushing like its trying to verify my g2. Also, should i wait for like 10 minutes or so when i enter download mode for the bar seen at the phone to be completed before the whole process? Lastly, the most of times the lg mobile support tool crashes on the pc.
Please help me folks... :/
Click to expand...
Click to collapse
Where did you buy it, it sounds like the symptoms of a frankenphone. There is a post about it, some sellers flash d802 firmware on a d800 and it causes similar problems with screen, IDK about the LG mobile flash tool.
.
3r4s3r said:
Where did you buy it, it sounds like the symptoms of a frankenphone. There is a post about it, some sellers flash d802 firmware on a d800 and it causes similar problems with screen, IDK about the LG mobile flash tool.
.
Click to expand...
Click to collapse
I bought it 1 year ago, although i immediately flashed cloudy's rom. i cant understand though why every now and then the screen becomes unusable.
spirios1992 said:
I bought it 1 year ago, although i immediately flashed cloudy's rom. i cant understand though why every now and then the screen becomes unusable.
Click to expand...
Click to collapse
If you are brave enough you could try taking it apart and swabbing all the conections, I don't know if that would help but some people say it helps them. And the screen could just be faulty, you never no, before I took it apart I would try reflashing rom, doing the stock touch firmware update thing, then if it still don't work try flashing a kdz for the model number physically inside your phone not the one in the system info, and then I would take it fully apart, and put it back together then if it don't work, replace the screen.
the thing is i cant really interact with the screen to reflash the rom, its inresponsive. and my lg mobile support tool randomly crashes i hook my phone up the pc and it starts the download drivers part
spirios1992 said:
the thing is i cant really interact with the screen to reflash the rom, its inresponsive. and my lg mobile support tool randomly crashes i hook my phone up the pc and it starts the download drivers part
Click to expand...
Click to collapse
Try a different computer, you could use a USB otg cable to hook a mouse up to your phone if your having issues with touch screen to reset it.
try in different pc and differenrt dll

Mode download doesn't work

Hello,
I want upgrade my LG G2 with a new rom 5.xX
This phone have only the operator update. No custom, no trwp, nothing...
I installed drivers and when i want access to download mode. I can't. I use the good proccess with vol up then plug usb cable always with vol up presses.
follow this procces after a little moment my phone show me battery logo charging.
So i can't access to download mode.
I would use this process
t was NOT bricked. I finally tried playing around with the LG Mobile Support Tool (B2CAppSetup.exe). Of course it detected that my phone already had the latest firmware from T-Mobile, but then I clicked Options>Upgrade Recovery.
It downloaded for a while then I noticed it had put my phone into download mode (it said "Rooted" in red letters at the bottom). Then it flashed the same firmware over and I immediately tested, it entered download mode right away. But I didn't end up needing that as Stumproot was able to brute force it now after the recovery flash.
Anyway, I couldn't find an answer anywhere else. Most results also have a bricked phone, but that wasn't my issue. This solved my problem and maybe it could work for others.
but it's impossible for me to install B2appsetup on my pc the installation begin then stop after 5s then nothing.
I have Win 10.
Do you have a solution for me , please??
poupinej said:
Hello,
I want upgrade my LG G2 with a new rom 5.xX
This phone have only the operator update. No custom, no trwp, nothing...
I installed drivers and when i want access to download mode. I can't. I use the good proccess with vol up then plug usb cable always with vol up presses.
follow this procces after a little moment my phone show me battery logo charging.
So i can't access to download mode.
I would use this process
t was NOT bricked. I finally tried playing around with the LG Mobile Support Tool (B2CAppSetup.exe). Of course it detected that my phone already had the latest firmware from T-Mobile, but then I clicked Options>Upgrade Recovery.
It downloaded for a while then I noticed it had put my phone into download mode (it said "Rooted" in red letters at the bottom). Then it flashed the same firmware over and I immediately tested, it entered download mode right away. But I didn't end up needing that as Stumproot was able to brute force it now after the recovery flash.
Anyway, I couldn't find an answer anywhere else. Most results also have a bricked phone, but that wasn't my issue. This solved my problem and maybe it could work for others.
but it's impossible for me to install B2appsetup on my pc the installation begin then stop after 5s then nothing.
I have Win 10.
Do you have a solution for me , please??
Click to expand...
Click to collapse
so you have tmobile. right?
and only 5.0.2 lillipop is availabe stock.. if you go asop or cm the theres 5.1.1- 6.0
then do what the guide says to do here.
http://forum.xda-developers.com/showthread.php?t=2432476
I can't do that because I don't have the download mode
poupinej said:
I can't do that because I don't have the download mode
Click to expand...
Click to collapse
try the skr tools , with the nuke download . read as i havent used it but i read that might bring download. the other way is to short circuit the motherboard.. but ill go read skr tools if i was you.

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