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[guide][ALL L9]downgrade from jb + unbrick security error(with out fastboot)U...

19th March 2014, 01:32 PM   |  #1  
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LG SUPER SECRET GUIDE + DOWNGRADE FROM JB + UNBRICK SECURITY ERROR
::BY DUCKSCREEN::
First off i am not copy from anyone i do i my self i don't want to go to MBK(waht is mbk?? please use google)
i take 2 day to unbrick my phone please understand me,thank you




update
Do Don't try this for now becouse lg server is open and lg upgrade tool is update is self and you can't Flash offline update!!!
now you can flash offline normaly with this script https://mega.co.nz/#!UM1TmYoZ!auGWNj...lmZOeoW1KEE8vI




IF YOU CAN'T GET IN FAST BOOT MODE TO FLASH U&X BOOT
LGFLASH TOOL WELL HELP YOU


SUPPORT ALL LG MODEL



 
File Need
1.PROGRAM and etc..

------------------------


2.ICS ROM


WIND MOBILE ICS ONLY P769&MSP769>> Download
HOW TO USED IT (open with microsoft word 2007-UP) >>> DOWNLOAD

3.JB ROM
STOCK METRO PCS 10B JB 4.1.2 >>>DOWNLOAD

LATEST STOCK METRO PCS 10F 4.1.2 (upload by me please give me a credit) >>> DOWNLOAD




THIS GUIDE WELL HELP YOU DOWNGRADE FROM JB OR STUCK AT LG LOGO OR SECURITY ERROR AND INSTALL JB BEFORE


1. COVERTER KDZ BY BIN+FLS ROM COVERTER 2.1.exe
 


2.OPEN LGFLASHTOOL

3.Get you Device to S/w upgrade or download mode

4.Setting port by FOLLOW THE GUIDE in page 117
 


LGP769_20121004_LGFLASHv1350.DLL is in LGFlashTool+CRACKED folder





5.YOU MAY GET A ERROR. Don't worry becouse NOW YOU ALREADY ICS UBOOT AND XBOOT FROM LGFLASHTOOL


6.NOW YOU HAVE TO INSTALL KDZ FROM THIS http://tinyurl.com/mvg9sdd


7.ENJOY

Sorry I don’t have time to upload video clip
Please Thank if well work

Cr.
cmahendra FOR INSTALL KDZ OFFLINE

jes0411 FOR BIN+FLS ROM COVERTER 2.1.exe

XDA DEVELOPER FOR FORUMS

sorry i'm bad english
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Last edited by Duckscreen; 14th May 2014 at 05:32 PM.
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19th March 2014, 04:57 PM   |  #2  
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Anyone tried this out yet?

Sent from my LG-P769 using xda app-developers app
20th March 2014, 03:24 AM   |  #3  
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Red face Work
i try it well work i have install jb before and security error thank duckscreen
8th April 2014, 07:24 AM   |  #4  
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So you have used this method. I remembered the last time I checked the program needed a special key. I take it the problem has been solved. Modifying the kdz to a single bin is quite easy. I'll tell you how to make it later. Or I'll just upload the kdz you want already set.

Sent from my LG-P769 using XDA Premium 4 mobile app
9th April 2014, 03:31 PM   |  #5  
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Quote:
Originally Posted by kuma82

So you have used this method. I remembered the last time I checked the program needed a special key. I take it the problem has been solved. Modifying the kdz to a single bin is quite easy. I'll tell you how to make it later. Or I'll just upload the kdz you want already set.

Sent from my LG-P769 using XDA Premium 4 mobile app

i already moded LGFLASHTOOL
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10th April 2014, 07:08 AM   |  #6  
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Quote:
Originally Posted by Duckscreen

i already moded LGFLASHTOOL

Just curious, what changes did you make so it would operate? Just so you know, jes batch script is not setup properly for L9 kdz. It doesn't combine the bin files in the correct order. The script I put together will combine the kdz properly.


Update
I see, so this process is suppose to flash ice cream x & u with LGFlashtool but it doesn't flash the system, correct.

Sent from my LG-P769 using XDA Premium 4 mobile app
Last edited by kuma82; 10th April 2014 at 07:10 AM.
10th April 2014, 03:10 PM   |  #7  
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Would it help me to get my bootloader unlocked?

Sent from my LG-P768 using xda app-developers app
14th April 2014, 07:33 AM   |  #8  
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im trying to make sense of this but,im sorry but this guide needs a proper english translation. trying to connect on s/w mode while using lg tool but no idea how to connect to com port...

ALSO page 103 of the pdf is an xploded circuit board pinout view
16th April 2014, 04:12 PM   |  #9  
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Quote:
Originally Posted by kuma82

just curious, what changes did you make so it would operate? Just so you know, jes batch script is not setup properly for l9 kdz. It doesn't combine the bin files in the correct order. The script i put together will combine the kdz properly.


Update
i see, so this process is suppose to flash ice cream x & u with lgflashtool but it doesn't flash the system, correct.

Sent from my lg-p769 using xda premium 4 mobile app

lgflashtool help you if you can't flash u&x with fastboot mode
and if stuck with lg logo now you can flash with offline update
16th April 2014, 04:18 PM   |  #10  
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AM SORRY IF I CAN'T HELP YOU BUT NEXT TIME ,I well write it more understand
i am sorry for bad english
i'm 12 and live in thailand
Last edited by Duckscreen; 16th April 2014 at 04:24 PM.

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