Database Users

GT540 Bricked by kdz - NO DOWNLOAD MODE

Hi!
I've just got my gt540 .
I decided to install CM7[swift-droid] but fastboot or recovery was needed, so I downloaded rom with fastbood [.kdz] , installed all drivers and started update with kdz updater .
[phone was 2.1 already]
Installation stopped on 140 [booted to download mode]
I disconnected phone ...
And now it is not able to boot .
I tried VOL- + USB - nothing happen
I tried Hard-reset - same
KDZ Updater cant find my phone,
I can't even hear the "BUMP" sound when I connect the divice via USB .
Simply phone is fully dead .
Is there possiblity to make my gt540 working again ? //no warranty ;/

[HOW-TO] Repair your device if it feels like dead | When you click power button nothing happens (Note that this may or may not work)
Make sure you use USB ports that are in back of youre PC, dont use front ones.
Disable LGE Virtual Modem. In your Windows operating system, go to Control Panel > System > Hardware > Device Manager > Modems > Right click on LGE Virtual Modem and click Disable.
Try to boot your phone into Emergency/Download mode (VOL DOWN + POWER).
If the phone booted into Emergency/Download mode, launch KDZ Updater.
In TYPE dropdown menu, choose EMERGENCY.
Load KDZ(ROM) and flash your phone.
If the phone failed to boot into Emergency/Download mode (VOL DOWN + POWER), launch KDZ Updater.
In TYPE dropdown menu, choose CS_EMERGENCY.
Load KDZ(ROM) and flash your phone.
____________________________________________
THANKS TO fishears FROM XDA!
[HOW-TO] Repair your device if you don't see LG logo, boot animation | Recovery doesn't show up
Download the French v20A and the out.kdz
Take out your battery, SIM and SD card
Plug USB into PC (but not phone yet)
Hold (VOL DOWN) button and plug USB into phone | *Phone goes into Download Mode
Run KDZ Updater
In TYPE dropdown menu, choose CS_Emergency mode
Load French V20A ROM and flash it
When it's finished pull out USB again and hold (VOL DOWN) and reinsert USB to put phone back in Download Mode
Launch KDZ Updater (still in CS_Emergency mode)
Load out.kdz and flash it
You should now have your boot animations back and you can flash whatever ROM you want to use.
taken form the great guide from here
http://forum.xda-developers.com/showpost.php?p=13205397&postcount=26

Thanks but my phone is not able to go into Download mode and KDZ Upadter says "Phone not found" when I use "cs_emergency" .
Any other ideas ?
I think that repairing boot with jtag is inevitable

You have to send it to LG. Basically, they will replace the motherboard

post to delete

@up not so fast others with this prob might see this thread and fix their phone this way

Hmm, as I said warranty has ended .
I found auction where I can repair this for 20USD, probably I will try ... ;/

hmm connect to pc and try to power the phone with Power + Camera (2 clicks) for 30 seconds or more. (no matter if no logo appears)
then try to flash with kdz

I have some problem what to do!?

bs828 said:
@up not so fast others with this prob might see this thread and fix their phone this way
Click to expand...
Click to collapse
Well I just repetead a part of what you posted because I didnt read entirely your post. Doubt that anyone will find that helpful.

D802 v30a ERROR: Boot certification verify - Secure boot error

Yesterday I flashed (CSE flash) v30a KDZ to recover my GPS which as having problems getting locks and it all went well, it seemed the GPS got back working.
Later I used the DP Root to root it and it went ok.
After using the DP REC (if required for evaluation, please inform), my phone rebooted and it showed me the following message:
ERROR : boot certification verify
[1040] ------------------------------------------
[1090]
[1140] Secure booting Error!
[1200] Cause : boot certification verify
[1250]
[1300] ------------------------------------------
Click to expand...
Click to collapse
Then goes to this:
------------------------------------------
Critical Error!
------------------------------------------
Demigod Crash Handler : Critical Error!
Press key to choose Dload Mode or Reboot.
1) Volume Up : Dload Mode
2) Volume Down : Reboot.
If you choose Dload Mode,
Please do following action.
1) Dload Mode. Please connect USB.
2) Get the ram dump image using QPST Configuration.
------------------------------------------
Board Info
rev. : 1.1 speed,pvs : 1,2 serial : XXXXXXXXXX
------------------------------------------
Click to expand...
Click to collapse
Pressing the power button for more than 13s I can shut it down so that I can try the Volume Up + connect USB, but then it just powers the phone on and starts the above stated.
By pressing the Volume down + Power and pressing again after the LG Logo shows up, I can go to the reset screen but at the finish it doesn't show the factory reset or TWRP, just starts the sequence of screens above.
By pressing the Volume Up on the Demigod Crash screen, it show the following message:
Volume Up is pressed : Jump to Dload Mode.
Click to expand...
Click to collapse
and stays that way, but then the computer recognizes the "LGE AndroidNet USB Modem" and "LGE AndroidNet Serial Port", no more LG stuff there, and the LG Flash Tool doesn't go past 4%.
On Ubuntu it recognizes the same devices, but doesn't get the partitions
Does anyone know any way so that I can get out of this?

Hi @darknessmessiah,
Any luck with your issue? I've received a strikingly similar result after attempting to flash the stock lollipop to my LG G2 801 from the T-mobile forum.

jjmontem said:
Hi @darknessmessiah,
Any luck with your issue? I've received a strikingly similar result after attempting to flash the stock lollipop to my LG G2 801 from the T-mobile forum.
Click to expand...
Click to collapse
Hi there! Yes, I got to get it back... But it was this hard
Anyway there goes some tips:
After you remove the battery plug, you only need to put it back after everything is done.
You have to keep trying the short circuit until you get a new hardware called "Qualcomm hs-diagnostics 9006" and you computer recognizes a lot of disk partitions. The normal device my computer recognized was "Qualcomm HS-USB QDLoader 9008" and no tip out there worked.
When the computer recognizes the wrong device, remove the USB, plug it back and try again. One time it recognized one whole 32GB partition, but thankfully I didn't try anything besides removing the USB and try again.
After everything, I got Download Mode back and, after some tries (I've got some errors), got the flashtool to flash the ROM back.

jjmontem said:
Hi @darknessmessiah,
Any luck with your issue? I've received a strikingly similar result after attempting to flash the stock lollipop to my LG G2 801 from the T-mobile forum.
Click to expand...
Click to collapse
infect you need to fix the download mod
i can fix plz contact me https://www.facebook.com/faheem.anjum2

Wow, that's miserably complicated. And to show you my naivite, I wasn't aware that one could enter download mode by plugging in the phone to a computer with a USB cord, and holding the volume up button as it started up. My phone successfully entered download mode and I was able to use LG Flash Tool 2014 to return my phone to Stock 4.2.2 using this thread and a KDZ I had long ago stored.
Thanks for the help though!
darknessmessiah said:
Hi there! Yes, I got to get it back... But it was this hard
Anyway there goes some tips:
After you remove the battery plug, you only need to put it back after everything is done.
You have to keep trying the short circuit until you get a new hardware called "Qualcomm hs-diagnostics 9006" and you computer recognizes a lot of disk partitions. The normal device my computer recognized was "Qualcomm HS-USB QDLoader 9008" and no tip out there worked.
When the computer recognizes the wrong device, remove the USB, plug it back and try again. One time it recognized one whole 32GB partition, but thankfully I didn't try anything besides removing the USB and try again.
After everything, I got Download Mode back and, after some tries (I've got some errors), got the flashtool to flash the ROM back.
Click to expand...
Click to collapse

jjmontem said:
Wow, that's miserably complicated. And to show you my naivite, I wasn't aware that one could enter download mode by plugging in the phone to a computer with a USB cord, and holding the volume up button as it started up. My phone successfully entered download mode and I was able to use LG Flash Tool 2014 to return my phone to Stock 4.2.2 using this thread and a KDZ I had long ago stored.
Thanks for the help though!
Click to expand...
Click to collapse
Well... You were in a better situation than myself... holding the volume up and plugging the USB didn't work for me either... It was heavily messed up!

hi do you find solution
---------- Post added at 09:53 PM ---------- Previous post was at 09:48 PM ----------
i have same probleme with my lg g F320L can anyone help ?

[Q] DemiGod Crash Handler: Critical Error

HELP! I tried to install 30B LPBootstack but after I re-enter recovery mode I got
Critical Error!
DemiGod Crash Handler : Critical Error!
Press Key to choose Dload Mode or Reboot.
1. Vol Up : Dload Mode
2. Vol Down : Reboot
If you choose Dload Mode
1. Dload Mode. Please connect USB
2. Get the ram dump image using QPST Configuration.
I can't access Download or Recovery mode because every time I try to access them I get stuck at this screen.
HELP!
SOLUTION
-SEARCH SRK TOOLS.
I found that my problem something with Qualcomm Qhsusb_bulk.
Srk tools was the only thin that helped my phone resurrect from the dead.

Attention!!!!
Please ignore now. I got my problem solved.

CooLoL1999 said:
Attention!!!!
Please ignore now. I got my problem solved.
Click to expand...
Click to collapse
...but you're going to post the solution as well, right?

Problem
CooLoL1999 said:
Attention!!!!
Please ignore now. I got my problem solved.
Click to expand...
Click to collapse
how?I have this problem. Please help!

I have the same problem, may i have the solution, please help

kongwong82 said:
I have the same problem, may i have the solution, please help
Click to expand...
Click to collapse
SRK Tools help you

L0nelyE4rth said:
SRK Tools help you
Click to expand...
Click to collapse
I tried to use this tool you mention but how can it solve the demigod error?
SRK says "waiting for device" and nothing happens after that. The PC doesn't recognize the phone

tommy paradise said:
I tried to use this tool you mention but how can it solve the demigod error?
SRK says "waiting for device" and nothing happens after that. The PC doesn't recognize the phone
Click to expand...
Click to collapse
Please go to tell him not me, I'm tester not dev

http://forum.xda-developers.com/showthread.php?t=2582142, might help you!!!

tommy paradise said:
I tried to use this tool you mention but how can it solve the demigod error?
SRK says "waiting for device" and nothing happens after that. The PC doesn't recognize the phone
Click to expand...
Click to collapse
Well bro I was stuck with the same issue..
This happens to me when i flashed a wrong twrp recovery for lg g2 d801 and it was stuck in critical error i was also unable to access download mode ..
But my Good luck was that i recovered it by doing silly thing ?
So i do following things. But make sure u know the corrert version of your lg g2 to flash kdz file with lg flash tool and also must have lg drivers intalled.
Steps to perform.
1. While in critical error screen you have an option to press volume up button to boot into download mode( although it will not boot to download mode) but still press volume up button so your Pc can detect your phone.
2. Now flash a kdz file of your lg g2 with flash tool. ( you can google for it to download flash file for your lg g2 and how to flash it with lg flass tool.)
3. When you will try to flash it will fail..
4. Now power off your phone by pressing power button.
5. Now boot to download mode and flash the correct kdz with lg flash tool and u r good to go..
To acess download mode power off your phone immediately press volume up button and while keep pressing it and plug in usb cable and you will be in download mode
I performed all this on lg g2 d801 but i hope u can try it on other varients as well. As i was scared of short circut method and srk tool didn't help..

Critical error in donwload mode lg g2

Hi i just bricked My LG g2 d801 it show white screen saying critical error demigod Crash No recovery No Download mode
DemiGod Crash Handler : Critical Error!
Press Key to Choose Dload Mode or Reboot
1) Volume up : Dload Mode.
2) Volume Down: Reboot.
if i choose Dloade mode pc recognize it as Lge Androindnet USB serial port
i tried flashtool but no result becasue i cant acces download mode
i also tried the solution with abd that is on youtube but when i come to the first command it stay on waiting for device i think because it's recognized as Lge Androindnet USB serial port and not as QHSUSB_BULK
also tried SRKtool 2.1 no result
can anyone help

Me too. Same thing. Any one can help?

Hi guys,
I had the same error when trying to restore stock KDZ - couldn't get into download mode at all. I reached this point, and I had to hold the power button for a considerable amount of time until it actually turned off, and then plugged it into USB while holding the volume up button. It then entered the normal download mode, and I was able to restore the stock firmware.

It is not working for me!

[HELP] LG G2 can not open (stay at logo) (TWRP can't open - boot certification error)

Hello my friends.
I installed CloudyG2 3.3 to my LG G2. And on this morning, my phone closed. I tried to open but, i can't. The screen stayed at LG logo screen. So i tried to do Hard Reset with buttons. I said Yes-Yes but there was something wrong.. A mistake. (boot certification error) I can't enter TWRP screen.
I tried to install stock rom with Flash Tool. But i can't.. Again.. Because it stuck at %2..
So i can't install stock rom and i can't open my phone. Can anybody help me?
Sorry my bad English.

cemre17 said:
A mistake. (boot certification error) I can't enter TWRP screen.
I tried to install stock rom with Flash Tool. But i can't.. Again.. Because it stuck at %2..
Click to expand...
Click to collapse
First of all power of your phone by long pressing power button until screen light goes off completely
Then keep pressing volume + button and connect it to PC via USB cable. [DOWNLOAD MODE]
Now you must be in download mode, simply flash stock firmware.
If you can't enter download mode then you might be in fastboot mode.
here are some threads..find out which one is related to your problem follow instructions carefully.
[HOW TO] Fix your soft-bricked LG G2 (All Variants)
OR
[FIX] NO Recovery mode, No download mode, after OTA on rooted LG G2
OR
LG G2 is UNBRICKABLE NOW! [FIX REAL HARD BRICK
As you mentioned that you were running a custom ROM prior to this problem then I'm sure that you need not to visit following thread.
Refurbished phones and a few words of caution
Good Luck...!

KASHYAP9 said:
First of all power of your phone by long pressing power button until screen light goes off completely
Then keep pressing volume + button and connect it to PC via USB cable. [DOWNLOAD MODE]
Now you must be in download mode, simply flash stock firmware.
If you can't enter download mode then you might be in fastboot mode.
here are some threads..find out which one is related to your problem follow instructions carefully.
[HOW TO] Fix your soft-bricked LG G2 (All Variants)
OR
[FIX] NO Recovery mode, No download mode, after OTA on rooted LG G2
OR
LG G2 is UNBRICKABLE NOW! [FIX REAL HARD BRICK
As you mentioned that you were running a custom ROM prior to this problem then I'm sure that you need not to visit following thread.
Refurbished phones and a few words of caution
Good Luck...!
Click to expand...
Click to collapse
Thank you my friend for all your answers. In substance;
I can't open my phone. (Staying at LG logo screen.)
I can't do "Hard Reset" with phone buttons. (Because of "boot certification error" screen.)
I can enter "Download Mode" but I can't loading any .KDZ file with Flash Tool. (Stuck at %2)
My computer can't see my phone when I plug that.
Very hard situation. :crying:

cemre17 said:
Thank you my friend for all your answers. In substance;
I can't open my phone. (Staying at LG logo screen.)
I can't do "Hard Reset" with phone buttons. (Because of "boot certification error" screen.)
I can enter "Download Mode" but I can't loading any .KDZ file with Flash Tool. (Stuck at %2)
My computer can't see my phone when I plug that.
Very hard situation. :crying:
Click to expand...
Click to collapse
Reinstall LG drivers and PDA
then connect phone with PC in download mode.
open device manager and search for 'COM ports' list if you see your device there then you are ready to go.
If your device is not there then search under 'Other devices' and manually install drivers.
If you can boot into download mode and still you can't see your device in your PC then it's not problem with your G2. It's your PC which is causing it all.
Try another PC.

KASHYAP9 said:
Reinstall LG drivers and PDA
then connect phone with PC in download mode.
open device manager and search for 'COM ports' list if you see your device there then you are ready to go.
If your device is not there then search under 'Other devices' and manually install drivers.
If you can boot into download mode and still you can't see your device in your PC then it's not problem with your G2. It's your PC which is causing it all.
Try another PC.
Click to expand...
Click to collapse
I reinstalled LG drivers, and i can see "LGE Android MTP Device" in Device Manager and it has no problem. (There is no yellow exclamation mark) But still, my computer can't see my phone. And i tried install stock rom with Flash Tools again but i did not work. Stuck at %2 again.