Possible Brick!!! - T-Mobile LG V10 Q&A, Help & Troubleshooting

Good Day. I was upgrading from LP to MM. Was on Step 3 on de LGUP update process when my computer battery died on me. The phone is now in a bootloop indicating me Boot Verification Fail cause: Mismatch_Sig_Len on the LG Screen, I can access Download Mode but it rolls back to the Lg Bootloop Screen and I can also access fastboot and the computer does recognize the phone... ........ . Is it dead? Tried to get the phone to be recognized with LGUP with no luck. Thanks for any help provided. :crying::crying:

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[Q] Help with unbricking LGE720

Hey folks,
its bricked due to FOTA (I think it stands for: firmware over the air) update. This means the phone downloads a firmware update without computer connection or further PC-Software. Alas it didn't work.
Situation:
Phone starts, displays LG Logo and after that an 'updating firmware' screen for about 1 sec before rebooting and doing it all over again.
What I tried to solve this:
set up a new Win 7 32 bit machine to try to unbrick it. (drivers didn't work correctly on 64 bit) at least the MCCI driver update didn't)
connected the phone with the PC in Emergency Mode (holding VOL_UP + VOL_DOWN + PWR while USB is connected)
downloaded B2CApp (LGSupport Tool) and installed the device drivers for Emergency mode.
disabled the Android(Modem) dirver
downloaded V10D_00.kdz from LG home page
using the phones IMEI and this link:
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=IMEI_NUMBER_GOES_HERE
This gave me this link
http://csmgdl.lgmobile.com/swdata/WDLSW/LGE720/ADEUBK/V10d_00/V10D_00.kdz
I'm German so this seems all right, but I'm no expert​
installed msxml
ran KDZ_FW_UPD_EN and tried CDMA in CS_EMERGENCY Mode
A bunch of magic happend until the phone restarts during the process and is right back where we started, if I put it back to Emergency Mode while KDZ_FW_UPD_EN is still running the process finishes, but to no avail.
The log of this try is attached.
Where I am stuck now:
phone:
runs in Emergency Mode
is recognized by KDZ_FW_UPD_EN as well es LG Support Tool
Flashing via KDZ_FW_UPD_EN finishes
Flashing yields no result.
What else did I try
download V10C_00.kdz, as well as V10A_00.kdz from LG site and tried those with same result as with V10D_00.kdz
tried 3GQCT Type instead of CDMA
Wild guesses by me:
I need a different KDZ_FW_UPD_EN version, maybe different dll. I got it from here somewhre in a LG P500 related topic.
I messed up the driver install or need a different driver
LG hates me personally and planted this whole brick specifically to get to me.
The device really is permanently bricked, so I did all I could and there is nothing more to do? That would be sad, I hope I'm wrong here.
Additional Info:
The phone is not rooted and has never before been flashed. It ran with the same stock firmware since it was unwrapped.
The phone was not interrupted by power-loss during FOTA update.
The [read phone information] tool from KDZ_FW_UDP_EN crashes every time, maybe this tells somebody where things go wrong
Any help is appreciated. Ask for more info, if you need it.
Update - What else did I try:
I got the LG Support Tool to flash the Emergency Recovery all by itself runs till 99% --> reboots --> still stuck in same ol' bootloop
reentering Emergency Mode from the bootloop makes the Emergency Recovery finish with 100%, no error, but still bricked.
Regards
gimmeg

Fastboot phone with unlocked bootloader

I can get into cwm but everything i flash just leads me to a screen with the lg logo. Therefore, I'm trying to fast boot my phone and recover my phone but so far I've only been able to get to s/w upgrade mode and recovery stops at 15% because my computer sense that the phone isn't connected. I've tried running the recovery software in diag mode but it couldn't get past 15%. Can someone please help me?
Mensarius said:
I can get into cwm but everything i flash just leads me to a screen with the lg logo. Therefore, I'm trying to fast boot my phone and recover my phone but so far I've only been able to get to s/w upgrade mode and recovery stops at 15% because my computer sense that the phone isn't connected. I've tried running the recovery software in diag mode but it couldn't get past 15%. Can someone please help me?
Click to expand...
Click to collapse
2 options
Download LG mobile support (B2CAppSetup.exe) and select recover your phone. Your phone must be in S/W update mode and you must remove/comment LG server line in hosts file (for offline flash)
Try to use Lelus fast boot to flash ICS u-boot & x-loader (according to your phone model). And try to offline flash again. JB firmware does not work with offline flash.

LGFLASH TOOL error F0000002

not sure if this is where i post this but i am desperate. I have a VM LG F3 LS720 extremely bricked. hard reset just goes back to LG screen. cant access CRWP hangs on waiting......then i get an Android on his back with a red exclamation point in his gut. when i flash with LGFLASH TOOL (which i have done before successfully) all i get is error F0000002 and .....primary GPT. also phone will only show up on pc when in download mode. ADB, Android Flash Recovery, Skipsoft Toolkit, Odin......nothing is showing the phone to be connected. i am at a loss.

Boot verification fail = brick?

tried to flash my H901 but failed.
I cannot recover it in any way.
When it turns on it loops on the LG logo and a message: boot verification fail!
On Hard Reset it keeps looping on the same screen
On LG Bridge there is a message: Cannot check internal storage on your phone
On LG Flash Tool with H90120e_00_0316.kdz: error connecting to server
On LG UP with TotbypassFRPlgh901.tot: Antirollback version is smaller than device version
On fastboot flashing stock boot.img: writing 'boot'... FAILED (remote: unknown command)
I don't know what else to do, please help!!!
rubecker said:
tried to flash my H901 but failed.
I cannot recover it in any way.
When it turns on it loops on the LG logo and a message: boot verification fail!
On Hard Reset it keeps looping on the same screen
On LG Bridge there is a message: Cannot check internal storage on your phone
On LG Flash Tool with H90120e_00_0316.kdz: error connecting to server
On LG UP with TotbypassFRPlgh901.tot: Antirollback version is smaller than device version
On fastboot flashing stock boot.img: writing 'boot'... FAILED (remote: unknown command)
I don't know what else to do, please help!!!
Click to expand...
Click to collapse
I recently did this today and I used the kdz method. Good luck
http://forum.xda-developers.com/lg-v10/general/guide-lg-v10-stock-firmware-to-stock-t3224170
sensimila said:
I recently did this today and I used the kdz method. Good luck
http://forum.xda-developers.com/lg-v10/general/guide-lg-v10-stock-firmware-to-stock-t3224170
Click to expand...
Click to collapse
I tried using LG Flash Tool with H90120e_00_0316.kdz... it gave the connecting to server error. I had read that this is normal, that I should wait... I waited twice, overnight, and nothing happened.
Did you have success? if so, which version of Flash Tool did you use, with which specific kdz file? and what is your phone version?
Thank you for your input, I will try again using the KDZ I have.
This happened to me and I was able to unbrick. You have to get into download mode by connecting your phone to your computer and just hold the volume up button before it loops again. Then I was able to re-flash the kmz in download mode with LGUP.
What happened is I forgot to fully unlock the bootloader again after flashing the kmz. You have to do the fastboot portion as well (fastboot oem unlock). Then you can flash the tot file and continue the root process.
rubecker said:
I tried using LG Flash Tool with H90120e_00_0316.kdz... it gave the connecting to server error. I had read that this is normal, that I should wait... I waited twice, overnight, and nothing happened.
Did you have success? if so, which version of Flash Tool did you use, with which specific kdz file? and what is your phone version?
Thank you for your input, I will try again using the KDZ I have.
Click to expand...
Click to collapse
Without going into further detail. iMO the lgflash tool doesn't work. Use the LGUP tool instead. And follow those instructions on the link I posted. Lgflash tool is garbage..lol
Sent from my LG-H901 using Tapatalk
sensimila said:
Without going into further detail. iMO the lgflash tool doesn't work. Use the LGUP tool instead. And follow those instructions on the link I posted. Lgflash tool is garbage..lol
Sent from my LG-H901 using Tapatalk
Click to expand...
Click to collapse
SOLVED!!!!
Flashed H90120e_00_0316.kdz with LGUP instead of LG Flash Tool and it worked!!!!
Thank you so much
rubecker said:
SOLVED!!!!
Flashed H90120e_00_0316.kdz with LGUP instead of LG Flash Tool and it worked!!!!
Thank you so much
Click to expand...
Click to collapse
how can you get into downloader mode ? I get stuck on the boot screen, even when trying to access downloader mode. I don't have recovery installed as this happened while trying to install it.
rubecker said:
SOLVED!!!!
Flashed H90120e_00_0316.kdz with LGUP instead of LG Flash Tool and it worked!!!!
Thank you so much
Click to expand...
Click to collapse
could some one help me please?
i have the same problem on the h901 one, i'm triying to get into download mode and it shows the firts screen of DL mode but does not sucess it continue to lg screen triying to boot up and stocks in a boot loop.
elmanolette said:
could some one help me please?
i have the same problem on the h901 one, i'm triying to get into download mode and it shows the firts screen of DL mode but does not sucess it continue to lg screen triying to boot up and stocks in a boot loop.
Click to expand...
Click to collapse
Your phone needs to be connected to PC for that to work. Check if you connected directly to onboard USB port and cable is OK. Also, check if you going in it right: full shutdown (preferebly with battery), hold vol-up and connect it to PC while doing it. It should show small frame with "Download mod" and some dots and go to actual download mode after it detectes connection to PC.
Hawk84r said:
Your phone needs to be connected to PC for that to work. Check if you connected directly to onboard USB port and cable is OK. Also, check if you going in it right: full shutdown (preferebly with battery), hold vol-up and connect it to PC while doing it. It should show small frame with "Download mod" and some dots and go to actual download mode after it detectes connection to PC.
Click to expand...
Click to collapse
I've doing exactly that steps, but i did not do this (Check if you connected directly to onboard USB port and cable is OK). The pc just found it in fastboot mode, i tryied to get it into download mode but not sucess, it attemp go in there but just shows the "small frame with "Download mod" and some dots" and reboots to lg screen and restart over and over
elmanolette said:
I've doing exactly that steps, but i did not do this (Check if you connected directly to onboard USB port and cable is OK). The pc just found it in fastboot mode, i tryied to get it into download mode but not sucess, it attemp go in there but just shows the "small frame with "Download mod" and some dots" and reboots to lg screen and restart over and over
Click to expand...
Click to collapse
Also, you can try holding vol-up again, after download mode screen appeared. What kind of bootloop you area having, by the way? Is it just LG logo or something is writen in red there?
Hawk84r said:
Also, you can try holding vol-up again, after download mode screen appeared. What kind of bootloop you area having, by the way? Is it just LG logo or something is writen in red there?
Click to expand...
Click to collapse
yes, i tryied holding vol-up again, after download mode screen appeared and when i let it continue to normal boot there is something in red color after the Lg logo appears (690 boot varification fail!)
(740 -cause: MISMATCH_SIG_LEN)
Is there a way for taking away?
elmanolette said:
yes, i tryied holding vol-up again, after download mode screen appeared and when i let it continue to normal boot there is something in red color after the Lg logo appears (690 boot varification fail!)
(740 -cause: MISMATCH_SIG_LEN)
Is there a way for taking away?
Click to expand...
Click to collapse
Well, i had exactly the same issue, after relocking bootloader (don't ask ) and download mode did it for me, had no trouble getting in. So - no much help from me at this point, i'm afraid =(
rubecker said:
SOLVED!!!!
Flashed H90120e_00_0316.kdz with LGUP instead of LG Flash Tool and it worked!!!!
Thank you so much
Click to expand...
Click to collapse
how could went into download mode? mine does not let get in there, just shows a piece of frame with download mode and some dots continue forward to loops and shows that too: boot varication fail .... cause mismatch_sig_len
elmanolette said:
how could went into download mode? mine does not let get in there, just shows a piece of frame with download mode and some dots continue forward to loops and shows that too: boot varication fail .... cause mismatch_sig_len
Click to expand...
Click to collapse
Did you ever get a solution to this issue? I know its been ages but i am in exactly the same situation.
hiroprotagonist said:
Did you ever get a solution to this issue? I know its been ages but i am in exactly the same situation.
Click to expand...
Click to collapse
Did you figure this out? I have the same issue.
AlphaDawg74 said:
Did you figure this out? I have the same issue.
Click to expand...
Click to collapse
Sadly i never did
Sorry

Lg phone Bricked

To begin with, I was trying to unlock Lg sp200 tribute dynasty phone , I was told that flashing lg k8 plus x210mula firmware will do it. Everything went well during flashing process using chip erase command on lg up software until it didn't.
The phone stuck in lg k8 plus logo, at first I went to download mode but then I tride hard reset way by using recovery method but everything went bad after that. I had been stuck at black screen since then with a message saying [LGE] [Image Recovery] op_image : 0 API Support : 3 and no ability to go back to download mode .
When plugged in, the phone was recognized by the computer for a few seconds beep and then disconnected after the message appears.
I tried lg up, lg flash tool and even plugging without battery using volume up method to get into download mode but no luck.
Now I need a powerful tool to get back to download mode to flash new firmware that I got recently.​
hi
i too have a bricked lg phone mine is a fortune 2 lmx210ma. i was trying to flash a tecknight rom and when it erased the partitions it went dead and never came back. is there a way to fix this?
WaleedHAA said:
To begin with, I was trying to unlock Lg sp200 tribute dynasty phone , I was told that flashing lg k8 plus x210mula firmware will do it. Everything went well during flashing process using chip erase command on lg up software until it didn't.
The phone stuck in lg k8 plus logo, at first I went to download mode but then I tride hard reset way by using recovery method but everything went bad after that. I had been stuck at black screen since then with a message saying [LGE] [Image Recovery] op_image : 0 API Support : 3 and no ability to go back to download mode .
When plugged in, the phone was recognized by the computer for a few seconds beep and then disconnected after the message appears.
I tried lg up, lg flash tool and even plugging without battery using volume up method to get into download mode but no luck.
Now I need a powerful tool to get back to download mode to flash new firmware that I got recently.
Click to expand...
Click to collapse
Got a queation. Have you plugged your phone into a pc mac or linux machine to see if it registers. It being a qcom device it might show up as hsusb 9008 or qdl mode. If so you might be in the same boat as me. If it is check out QPST or QDL on linux and do some research. Im going to try to use qdl to revive my fortune2.
Worthy to note before attempting any kind of drastic procedure like exchange of firmware do extra research and make sure device hardware is compatible with the firmware you are trying to flash.
Some phones like the LG LMX210 variants called CV1 are pretty much interchangeable running the same hardwares. But there are a couple like my ulma that run mtk. Flashing mtk with qcom or vice-versa cause really bad. Thats not what i did i was just tired and wasnt paying attention to my procedure list and well you know it happens.

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