[LG Optimus 3D] halleyrokz:
I downgraded my phone using your method, imei is fine but now I tried to flash through KDZ method and it is stuck at 6 %. This is my error

11:02:47 : [C:\LGMobileUpgrade] Try to delete folder

11:02:47 : RemoveDirectory1 Error(2):C:\LGMobileUpgrade

11:02:47 : Start Date : 2012-10-28 11:02:47

11:02:47 : ---------- QM Testmode ---------

11:02:47 : ***** Check Tool Version *****

11:02:47 : Tool version : 1.5.4.8

11:02:47 : UpgradeDLL version : 1.2.6.7

11:02:47 : Current Dir : C:\ProgramData\LGMOBILEAX\B2C_Client

11:02:47 : LGE USB Driver Version :

11:02:47 : Android PDLV Version :

11:02:47 : Android NDLV Version :

11:02:47 : ******************************************

11:02:47 : [C:\ProgramData\LGMOBILEAX\Phone] Try to delete folder

11:02:47 : SetEmerModeAT()

11:02:47 : _IsConnectedPhone Call

11:03:03 : _IsConnectedPhone(1)

11:03:03 : 0 - NotConnected.

11:03:03 : 1 - Normal connect success

11:03:03 : 2 - Emergency connect success

11:03:16 : *****CheckOS Start********

11:03:16 : Microsoft_Windows7_Professional_

11:03:16 : *****CheckPCSyncPrograms Start*****

11:03:17 : PCSyncPrograms Not Found - OK and ready to upgrade

11:03:17 : Checking the connection with the cell phone...

11:03:17 : dwWaitResetTime(40000 ms)

11:03:18 : Phone Mode(1)

11:03:18 : *****GetPhoneType Start*****

11:03:18 : Phone Type : OMAP_IFX

11:03:18 : *****GetPhoneModel Start*****

11:03:19 : Phone read Model : LG-P920

11:03:19 : Server param Model :

11:03:19 : *****GetPhoneBinaryVersion Start*****

11:03:20 : Phone Bin Version : V21E_00

11:03:21 : *****Get ESN / IMEI / MEID Start*****

11:03:25 : ESN/IMEI/MEID : 012621000347095

11:03:25 : Phone type Compare start

11:03:25 : *****Start _GetBatteryLevel*****

11:03:27 : Battery(4)

11:03:29 : *****CheckPCSyncPrograms Start*****

11:03:29 : PCSyncPrograms Not Found - OK and ready to upgrade

11:03:30 : ****************CheckAndDownload********************

11:03:30 : ******Extract Start C:\LG\LG O3D v21E\V21E_00.kdz*****

11:03:30 : Model Dll Dir(C:\ProgramData\LGMOBILEAX\Phone\)

11:03:30 : File Size = 361975894

11:03:47 : Extract kdz file Success.

11:03:48 : Extracted C:\ProgramData\LGMOBILEAX\Phone\\V21E.wdb\n

11:03:48 : WDB(or DZ) FullPath(C:\ProgramData\LGMOBILEAX\Phone\\V21E.wdb)

11:03:48 : Extracted C:\ProgramData\LGMOBILEAX\Phone\\LGP920.dll\n

11:03:48 : Model dll FullPath(C:\ProgramData\LGMOBILEAX\Phone\\LGP920.dll)

11:03:48 : NNNNN WDB FullPath(C:\ProgramData\LGMOBILEAX\Phone\V21E.wdb)

11:03:48 : NNNNN Model dll FullPath(C:\ProgramData\LGMOBILEAX\Phone\LGP920.dll)

11:03:48 : Extract End C:\LG\LG O3D v21E\V21E_00.cab

11:03:49 : ------------------Model.dll Information-------------------

11:03:49 : Filename : LGP920.dll

11:03:49 : Version : 1.0.0.3

11:03:49 : File size : 262144

11:03:49 : File date : 2011/06/27-21:28:08

11:03:49 : PC Created date: 2012/10/28-11:03:48

11:03:49 : ----------------------------------------------------------

11:03:49 : Connection check start........

11:04:04 : Check phone IMEI/ESN/MEID again.

11:04:04 : *****2nd ESN / IMEI / MEID check Start*****

11:04:08 : 2nd ESN/IMEI/MEID check : 012621000347095

11:04:08 : IMEI check OK.

11:04:08 : Connection check and IMEI check OK....

11:04:08 : *****Check LGCM Programs Start*****

11:04:08 : LGCM Programs Not Found - OK and ready to upgrade

11:04:08 : *****WorkModelDLL Start*****

11:04:09 : strPhoneBinaryPath(C:\ProgramData\LGMOBILEAX\Phone\V21E.wdb)

11:04:09 : strModuleDir(C:\ProgramData\LGMOBILEAX\Phone\)

11:04:09 : strModelDLLPath(C:\ProgramData\LGMOBILEAX\Phone\LGP920.dll)

11:04:09 : _DetachDLL Call

11:04:09 : _DetachDLL Call End

11:04:09 : Call fn_StartUpgrade

11:04:09 : ********* 2Chip Model.dll input Parameter*************

11:04:09 : MODEL_EVENT : 32769

11:04:09 : PhoneBinaryPath : C:\ProgramData\LGMOBILEAX\Phone\V21E.wdb

11:04:09 : ModuleDir : C:\ProgramData\LGMOBILEAX\Phone\

11:04:09 : BootWaitTime : 49500

11:04:09 : UsbHighSpeed : FALSE

11:04:09 : PhoneMode : 1

11:04:09 : NewPhoneBinVersion : V21E_00

11:04:09 : ClearSI : FALSE

11:04:09 : AuthMark : 0

11:04:09 : ********* 2Chip Model.dll input Parameter End*************

11:04:09 : wParam : 2004, lParam = 5

11:04:10 : Step : TYPE_WPARAM_IFX_DN_POS

11:04:26 : wParam : 2004, lParam = 6

11:12:46 : wParam : 2004, lParam = 7

11:12:46 : wParam : 2010, lParam = 3000

11:12:46 : CleanModelDll() : Free Model.dll

11:12:46 : _DetachDLL Call

11:12:46 : _DetachDLL Call End

11:12:46 : Page_Error ºÎºÐÀÔ´Ï´Ù

11:12:46 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù

After that it asked me to remove and retry, still same error, but now my lcd is acting wierdly , It automatically recognizes touch input from lower screen area and apps like messaging etc pops up and continues to run as if someone was touching it.