[LG Nitro HD] audit13:
I downloaded and used the files from Machzelet's guide and it flashed the su640 rom very quickly and, when it re-booted, it looked like it still had the 18f rom from Hereric's guide even though it seems to have flashed the Korean rom without any errors.

Tried under WinXP since I had luck in the past using XP rather than Win 7 but I still had no luck.

I forgot to save the logs but I could probably go back a re-run the program and save the logs if that would help.

Would taking it to a repair shop be any different than me trying to flash the rom in emergency or recovery mode?

Edit: I tried to flash the Korean rom again and it looks to have worked because I see the Optimus LTE icon with the spinning pink "candy cane", then it boots and I see the time (which is incorrect) and the purple grapes in the background. Unfortunately, the screen still doesn't respond to touches.

Also, I had to change the select type to CDMA; otherwise, I could not get the CSE web upgrade test button to work.

Here's a partial log:

23:08:13 : [C:\LGMobileUpgrade] Try to delete folder

23:08:13 : RemoveDirectory1 Error(2):C:\LGMobileUpgrade

23:08:13 : Start Date : 2013-08-08 23:08:13

23:08:13 : ---------- QM CSE Testmode ---------

23:08:13 : ---------- CSE mode ---------

23:08:13 : ***** Check Tool Version *****

23:08:13 : Tool version : 1.5.4.8

23:08:13 : UpgradeDLL version : 1.2.6.7

23:08:13 : Current Dir : C:\ProgramData\LGMOBILEAX\B2C_Client

23:08:13 : LGE USB Driver Version :

23:08:13 : Android PDLV Version :

23:08:13 : Android NDLV Version :

23:08:13 : ******************************************

23:08:13 : SetEmerModeAT()

23:08:13 : *****CheckOS Start********

23:08:13 : Microsoft_Windows7_Professional_Service Pack 1

23:08:13 : *****CheckPCSyncPrograms Start*****

23:08:24 : PCSyncPrograms Not Found - OK and ready to upgrade

23:08:25 : ****************CheckAndDownload********************

23:08:25 : ******Extract Start D:\Downloads\Nitro_Unbrick\Machzelet's Unbrick\LG-SU640-V10F_00.kdz*****

23:08:25 : Model Dll Dir(C:\ProgramData\LGMOBILEAX\Phone\)

23:08:25 : File Size = 474536279

23:08:30 : Extract kdz file Success.

23:08:31 : Extracted C:\ProgramData\LGMOBILEAX\Phone\\V10f_00.wdb\n

23:08:31 : WDB(or DZ) FullPath(C:\ProgramData\LGMOBILEAX\Phone\\V10f_00.wdb)

23:08:31 : Extracted C:\ProgramData\LGMOBILEAX\Phone\\SU640_WD_1_1_3_0.dll\n

23:08:31 : Model dll FullPath(C:\ProgramData\LGMOBILEAX\Phone\\SU640_WD_1_1_3_0.dll)

23:08:31 : Extracted C:\ProgramData\LGMOBILEAX\Phone\\V10f_00.wdh\n

23:08:31 : NNNNN WDB FullPath(C:\ProgramData\LGMOBILEAX\Phone\V10f_00.wdb)

23:08:31 : NNNNN Model dll FullPath(C:\ProgramData\LGMOBILEAX\Phone\SU640_WD_1_1_3_0.dll)

23:08:31 : Extract End D:\Downloads\Nitro_Unbrick\Machzelet's Unbrick\LG-SU640-V10F_00.cab

23:08:31 : ------------------Model.dll Information-------------------

23:08:31 : Filename : SU640_WD_1_1_3_0.dll

23:08:31 : Version : 1.1.3.023:09:41 : wParam : 2004, lParam = 92

23:08:31 : File size : 348160

23:08:31 : File date : 2011/10/27-17:09:48

23:08:31 : PC Created date: 2013/08/08-22:53:34

23:08:31 : ----------------------------------------------------------

23:08:31 : *****Check LGCM Programs Start*****

23:08:31 : LGCM Programs Not Found - OK and ready to upgrade

23:08:31 : *****WorkModelDLL Start*****

23:08:31 : strPhoneBinaryPath(C:\ProgramData\LGMOBILEAX\Phone\V10f_00.wdb)

23:08:31 : strModuleDir(C:\ProgramData\LGMOBILEAX\Phone\)