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[Fix] [How to] [Unbrick] 'fastboot mode started udc_start() (LG-P500)

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voltaire23
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Quote:
Originally Posted by andeedee View Post
Hi there, I'm a complete novice at this but giving it a go...I'm up to step three and have opened the original firmware folder and run the application, but whenever I type the serial number (or the IMEI number - have tried both) and hit "save" it says "Unsuccessful in connecting to server or phone information is wrong!"

Any tips to get through this step?

Thanks
uhm.... sir you probably need a internet connection for it to be able to work...
 
andeedee
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Quote:
Originally Posted by voltaire23 View Post
uhm.... sir you probably need a internet connection for it to be able to work...
Yep. Thanks. I am using the same computer and internet connection that I am using to make this post, so definitely not the issue.

Will it make any difference that I am trying this from New Zealand? Is it country specific? Or should it just work no matter where you are?
 
voltaire23
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Quote:
Originally Posted by andeedee View Post
Yep. Thanks. I am using the same computer and internet connection that I am using to make this post, so definitely not the issue.

Will it make any difference that I am trying this from New Zealand? Is it country specific? Or should it just work no matter where you are?
''it just work no matter where you are'' ... it does everywhere sir.. )
 
wcdaniel
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(Last edited by wcdaniel; 9th April 2014 at 01:44 AM.)
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swaggyp
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Default help ;(

Quote:
Originally Posted by voltaire23 View Post
REMEMBER: DO THIS AT YOUR OWN RISK..DO FOLLOW STEPS SO THAT YOU WONT ENCOUNTER ANY PROBLEMS.!

Thinking that your phone is bricked??
Ever wonder how to get the hell out of the ''Fastboot mode started udc_start()''..??
Worry not.. The help is here.. )


Note: *This usually happens when you flash something and failed.
*Don't worry your device is not fully bricked.. There are many ways to fix this..
*Before proceeding please make sure your phone is charged even if the backlight is always on while charging..
* Remember make sure LG UNITED (Driver of your phone) is already installed (to avoid PHONE WAS NOT FOUND)!!!!!!
*This will restore your Original Rom.
*This Works On All Variants Of Optimus One (LG-P500,LG-P505,LG-P506,LG-P509) and other few devices
*For the Prerequisites (Below)..

Prerequisites:
*KDZ Updater/Lg United
*Windows Pc/Usb cable


INSTRUCTIONS:
STEP 1:Download the prerequisites. Disable all LGE modems under modems from Windows device manager in
the control panel.. (Simply click start then type ''Device manager'' click it. then you will see there under MODEMS)

STEP 2:Exract the files..Open the KDZ Folder to your desktop and Right click on the "KDZ_FW_UPD.exe" and
click RUN AS ADMINISTRATOR.

STEP 3:Open the "Original firmware" folder and run it, type the serial number on the blank form entry. You can
Find you serial number on the back of you phone, remove the battery and look for the sticker attached to you phone.
If you fail to launch this software, you will have to install net. framework 4.0, just open your browser and type
NET.framework 4.0. Download it and install. After this you are able to run the software.After you type down the serial
number of your device click save and just save it on you DESKTOP. Wait until it is finished. This takes some time.
Internet connection needed as this software is downloading the ''KDZ file'' needed for the "KDZ_FW_UPD.exe".

STEP 4: Now lets go to your phone,press and hold both the back(return) button and the volume up button and
simultaneously connect the USB cable.. (The phone should light up and say Emergency mode!! in a green
The phone should light up and say Emergency mode!! in a GREEN/YELLOW background. (if not don't continue...)

STEP 5:After the download lets go back to "KDZ_FW_UPD.exe" .. Follow this settings... TYPE:3GQCT
PHONE MODE: DIAG
Select the cab file (the one you downloaded ''KDZ file'' located at DESKTOP) The version
will depend on the ''KDZ file'' you downloaded. EX: (mine is V10F_00.kdz so the version will be V10F_00) after this
click "LAUNCH SOFTWARE UPDATE'' THIS WILL TAKE SOME TIME..... WAIT FOR IT....
For most of you it would probably say PHONE WAS NOT FOUND!..To avoid this please make sure you have
follow my note written above..

STEP 6:DONE... ITS ALL FIX NOW.. YOUR PHONE WILL REBOOT NORMALLY WITHOUT THE
'FASTBOOT MODE STARTED UDC_START()'

STEP 7:AND FINALLY.... ONE MORE STEP.... PRESS THE "THANK" BUTTON IF I HELPED YOU .

CREDITS:
@XDA DEVELOPERS For the awesome ''original lg firmware'' !! )
Will this work for my lg l9? it says security error?
 
swaggyp
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Posts: 17
Join Date: Apr 2014
Default I tried to do this but with my lg l9 (security error)

Quote:
Originally Posted by voltaire23 View Post
REMEMBER: DO THIS AT YOUR OWN RISK..DO FOLLOW STEPS SO THAT YOU WONT ENCOUNTER ANY PROBLEMS.!

Thinking that your phone is bricked??
Ever wonder how to get the hell out of the ''Fastboot mode started udc_start()''..??
Worry not.. The help is here.. )


Note: *This usually happens when you flash something and failed.
*Don't worry your device is not fully bricked.. There are many ways to fix this..
*Before proceeding please make sure your phone is charged even if the backlight is always on while charging..
* Remember make sure LG UNITED (Driver of your phone) is already installed (to avoid PHONE WAS NOT FOUND)!!!!!!
*This will restore your Original Rom.
*This Works On All Variants Of Optimus One (LG-P500,LG-P505,LG-P506,LG-P509) and other few devices
*For the Prerequisites (Below)..

Prerequisites:
*KDZ Updater/Lg United
*Windows Pc/Usb cable


INSTRUCTIONS:
STEP 1:Download the prerequisites. Disable all LGE modems under modems from Windows device manager in
the control panel.. (Simply click start then type ''Device manager'' click it. then you will see there under MODEMS)

STEP 2:Exract the files..Open the KDZ Folder to your desktop and Right click on the "KDZ_FW_UPD.exe" and
click RUN AS ADMINISTRATOR.

STEP 3:Open the "Original firmware" folder and run it, type the serial number on the blank form entry. You can
Find you serial number on the back of you phone, remove the battery and look for the sticker attached to you phone.
If you fail to launch this software, you will have to install net. framework 4.0, just open your browser and type
NET.framework 4.0. Download it and install. After this you are able to run the software.After you type down the serial
number of your device click save and just save it on you DESKTOP. Wait until it is finished. This takes some time.
Internet connection needed as this software is downloading the ''KDZ file'' needed for the "KDZ_FW_UPD.exe".

STEP 4: Now lets go to your phone,press and hold both the back(return) button and the volume up button and
simultaneously connect the USB cable.. (The phone should light up and say Emergency mode!! in a green
The phone should light up and say Emergency mode!! in a GREEN/YELLOW background. (if not don't continue...)

STEP 5:After the download lets go back to "KDZ_FW_UPD.exe" .. Follow this settings... TYPE:3GQCT
PHONE MODE: DIAG
Select the cab file (the one you downloaded ''KDZ file'' located at DESKTOP) The version
will depend on the ''KDZ file'' you downloaded. EX: (mine is V10F_00.kdz so the version will be V10F_00) after this
click "LAUNCH SOFTWARE UPDATE'' THIS WILL TAKE SOME TIME..... WAIT FOR IT....
For most of you it would probably say PHONE WAS NOT FOUND!..To avoid this please make sure you have
follow my note written above..

STEP 6:DONE... ITS ALL FIX NOW.. YOUR PHONE WILL REBOOT NORMALLY WITHOUT THE
'FASTBOOT MODE STARTED UDC_START()'
I got this?

STEP 7:AND FINALLY.... ONE MORE STEP.... PRESS THE "THANK" BUTTON IF I HELPED YOU .

CREDITS:
@XDA DEVELOPERS For the awesome ''original lg firmware'' !! )
I get this? or is there a different way for a lg l9 security error?
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swaggyp
Old
#17  
Junior Member
Thanks Meter 1
Posts: 17
Join Date: Apr 2014
Default I tried to do this but with my lg l9 (security error)

Quote:
Originally Posted by voltaire23 View Post
REMEMBER: DO THIS AT YOUR OWN RISK..DO FOLLOW STEPS SO THAT YOU WONT ENCOUNTER ANY PROBLEMS.!

Thinking that your phone is bricked??
Ever wonder how to get the hell out of the ''Fastboot mode started udc_start()''..??
Worry not.. The help is here.. )


Note: *This usually happens when you flash something and failed.
*Don't worry your device is not fully bricked.. There are many ways to fix this..
*Before proceeding please make sure your phone is charged even if the backlight is always on while charging..
* Remember make sure LG UNITED (Driver of your phone) is already installed (to avoid PHONE WAS NOT FOUND)!!!!!!
*This will restore your Original Rom.
*This Works On All Variants Of Optimus One (LG-P500,LG-P505,LG-P506,LG-P509) and other few devices
*For the Prerequisites (Below)..

Prerequisites:
*KDZ Updater/Lg United
*Windows Pc/Usb cable


INSTRUCTIONS:
STEP 1:Download the prerequisites. Disable all LGE modems under modems from Windows device manager in
the control panel.. (Simply click start then type ''Device manager'' click it. then you will see there under MODEMS)

STEP 2:Exract the files..Open the KDZ Folder to your desktop and Right click on the "KDZ_FW_UPD.exe" and
click RUN AS ADMINISTRATOR.

STEP 3:Open the "Original firmware" folder and run it, type the serial number on the blank form entry. You can
Find you serial number on the back of you phone, remove the battery and look for the sticker attached to you phone.
If you fail to launch this software, you will have to install net. framework 4.0, just open your browser and type
NET.framework 4.0. Download it and install. After this you are able to run the software.After you type down the serial
number of your device click save and just save it on you DESKTOP. Wait until it is finished. This takes some time.
Internet connection needed as this software is downloading the ''KDZ file'' needed for the "KDZ_FW_UPD.exe".

STEP 4: Now lets go to your phone,press and hold both the back(return) button and the volume up button and
simultaneously connect the USB cable.. (The phone should light up and say Emergency mode!! in a green
The phone should light up and say Emergency mode!! in a GREEN/YELLOW background. (if not don't continue...)

STEP 5:After the download lets go back to "KDZ_FW_UPD.exe" .. Follow this settings... TYPE:3GQCT
PHONE MODE: DIAG
Select the cab file (the one you downloaded ''KDZ file'' located at DESKTOP) The version
will depend on the ''KDZ file'' you downloaded. EX: (mine is V10F_00.kdz so the version will be V10F_00) after this
click "LAUNCH SOFTWARE UPDATE'' THIS WILL TAKE SOME TIME..... WAIT FOR IT....
For most of you it would probably say PHONE WAS NOT FOUND!..To avoid this please make sure you have
follow my note written above..

STEP 6:DONE... ITS ALL FIX NOW.. YOUR PHONE WILL REBOOT NORMALLY WITHOUT THE
'FASTBOOT MODE STARTED UDC_START()'
I got this?

STEP 7:AND FINALLY.... ONE MORE STEP.... PRESS THE "THANK" BUTTON IF I HELPED YOU .

CREDITS:
@XDA DEVELOPERS For the awesome ''original lg firmware'' !! )
I get this? or is there a different way for a lg l9 security error?
 
swaggyp
Old
#18  
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Thanks Meter 1
Posts: 17
Join Date: Apr 2014
Default help ;(

Quote:
Originally Posted by karan.scorpion View Post
Thanks a lot. You really saved my phone. Worked like a charm. My device is back to life and working good

But some apps (play store, maps, etc) are shown as broken as I had earlier moved them to a second partition on my SD card.

I tried downloading play store apk, maps apk and tried to install, but installation is a failure

Is there any way to restore these apps?
It says my phone is not found?? Everytime i plug in my phone into s/w upgrade (download moad) on the device manager it says lge mobile modem?
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voltaire23
Old
(Last edited by voltaire23; 10th April 2014 at 05:36 PM.)
#19  
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Thanks Meter 32
Posts: 30
Join Date: Dec 2013
Quote:
Originally Posted by swaggyp View Post
Will this work for my lg l9? it says security error?
Im not sure.. but I think it will not work on p760. Sorry for late reply sir.

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