[LG Optimus 3D] Guantonio:
Hi Everyone,

I've been given a friends phone to repair which he got with 'no emie' number showing, hence no signal. ClockwordMod recovery works fine and you can flash any custom 21e rom.

I've tried everything below on both an XP and Win 7 machine. All the procedures work fine on my P920 but fail on his. Both phones are running the same rom and kernel with 'Software Version: LGP920-V21e-Apr-19-2012' and 'Baseband version: L6260_MODEM_SIC_01.1042.00'.

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[Method/Attempt: 1]

At first I assumed it was a simple case of restoring the imei number with 'tutty' using this guide:

[GUIDE] Unlock Phone / Recover IMEI

With my working P920 connected, when I switch the port settings to 'CP Image Download' the new driver is installed and everything in the terminal window works as it should:

When selecting 'CP Image Download' on the faulty P920, you get one beep where it disconnects and no new hardware is detected or drivers installed. All the connection the connections detected when it connected in developer mode are all gone from device manager. Hence, there are no working ports for Tutty to use. As expected, when trying to connect to a port detected in dev mode without switching the port settings to 'CP Image Download', tutty's blue terminal window either gives an error or doesn't respond to any keyboard input.

I next tried re-flashing a baseband in download mode using two different versions of SmartFlash. Both give a 'Timeout error' when trying to connect to the IFX Modem.

Mine flashed without any problems:

[Method: 2]

I next attempted to return to stock using the LG Flash Toolk files via The Dark Lestat's guide:

[GUIDES/TOOLS]Making Developing/Flashing/Returning to Stock Easier

The 1st attempt was with V21D_00.kdz but it kept hanging at Step : TYPE_WPARAM_IFX_DN_POS and failing at 30%.

17:56:15 : Call Retry Thread
17:56:15 : Checking the connection with the cell phone...
17:56:15 : Checking the connection with the cell phone...
17:56:15 : dwWaitResetTime(40000 ms)
17:56:19 : _IsConnectedPhone Call
17:56:58 : _IsConnectedPhone(2)
17:56:58 : 0 - NotConnected.
17:56:58 : 1 - Normal connect success
17:56:58 : 2 - Emergency connect success
17:56:58 : Phone Mode(2)
17:56:58 : *****WorkModelDLL Start*****
17:56:58 : _DetachDLL Call
17:56:58 : _DetachDLL Call End
17:56:58 : strPhoneBinaryPath(C:\ProgramData\LGMOBILEAX\Phone\V21D.wdb)
17:56:58 : strModuleDir(C:\ProgramData\LGMOBILEAX\Phone\)
17:56:58 : strModelDLLPath(C:\ProgramData\LGMOBILEAX\Phone\LGP920.dll)
17:56:58 : _DetachDLL Call
17:56:58 : _DetachDLL Call End
17:56:58 : Call fn_StartUpgrade
17:56:58 : ********* 2Chip Model.dll input Parameter*************
17:56:58 : MODEL_EVENT : 32769
17:56:58 : PhoneBinaryPath : C:\ProgramData\LGMOBILEAX\Phone\V21D.wdb
17:56:58 : ModuleDir : C:\ProgramData\LGMOBILEAX\Phone\
17:56:58 : BootWaitTime : 74250
17:56:58 : UsbHighSpeed : FALSE
17:56:58 : PhoneMode : 2
17:56:58 : NewPhoneBinVersion : V21D_00
17:56:58 : ClearSI : FALSE
17:56:58 : AuthMark : 0
17:56:58 : ********* 2Chip Model.dll input Parameter End*************
17:57:03 : wParam : 2004, lParam = 7
17:57:03 : Step : TYPE_WPARAM_IFX_DN_POS
17:57:03 : wParam : 2007, lParam = 0
17:57:03 : Step : TYPE_WPARAM_READ_FILES
17:57:03 : wParam : 2004, lParam = 8
17:57:03 : Step : TYPE_WPARAM_IFX_DN_POS
17:57:12 : wParam : 2004, lParam = 9
17:57:12 : wParam : 2004, lParam = 10
17:57:13 : wParam : 2003, lParam = 97
17:57:13 : Step : TYPE_WPARAM_DOWNLOAD_FILENAME
17:57:13 : wParam : 2004, lParam = 15
17:57:13 : Step : TYPE_WPARAM_IFX_DN_POS
17:58:43 : wParam : 2010, lParam = 3013
17:58:43 : CleanModelDll() : Free Model.dll
17:58:43 : _DetachDLL Call
17:58:43 : _DetachDLL Call End
17:58:43 : Page_Error ºÎºÐÀÔ´Ï´Ù
17:58:43 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù
17:58:43 : wParam : 2010, lParam = 3016
17:58:43 : CleanModelDll() : Free Model.dll
17:58:43 : _DetachDLL Call
17:58:43 : _DetachDLL Call End
17:58:43 : Page_Error ºÎºÐÀÔ´Ï´Ù
17:58:43 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù

I later tried again using V21E_00.kdz with similar results:

23:54:50 : [C:\LGMobileUpgrade] Try to delete folder
23:54:50 : RemoveDirectory1 Error(2):C:\LGMobileUpgrade
23:54:50 : Start Date : 2012-11-20 23:54:50
23:54:50 : ---------- QM Testmode ---------
23:54:50 : ***** Check Tool Version *****
23:54:50 : Tool version : 1.5.4.8
23:54:50 : UpgradeDLL version : 1.2.6.7
23:54:50 : Current Dir : C:\ProgramData\LGMOBILEAX\B2C_Client
23:54:50 : LGE USB Driver Version :
23:54:50 : Android PDLV Version :
23:54:50 : Android NDLV Version :
23:54:50 : ******************************************
23:54:50 : [C:\ProgramData\LGMOBILEAX\Phone] Try to delete folder
23:54:50 : RemoveDirectory1 Error(2):C:\ProgramData\LGMOBILEAX\Phone
23:54:50 : SetEmerModeAT()
23:54:50 : _IsConnectedPhone Call
23:55:12 : _IsConnectedPhone(2)
23:55:12 : 0 - NotConnected.
23:55:12 : 1 - Normal connect success
23:55:12 : 2 - Emergency connect success
23:55:12 : *****CheckOS Start********
23:55:12 : Microsoft_Windows_XP_Home Edition_Service Pack 3
23:55:12 : *****CheckPCSyncPrograms Start*****
23:55:12 : PCSyncPrograms Not Found - OK and ready to upgrade
23:55:12 : Checking the connection with the cell phone...
23:55:12 : dwWaitResetTime(40000 ms)
23:55:13 : Phone Mode(2)
23:55:13 : *****GetPhoneType Start*****
23:55:13 : Phone Type : OMAP_IFX
23:55:13 : *****GetPhoneBinaryVersion Start*****
23:55:14 : *****Get ESN / IMEI / MEID Start*****
23:55:14 : ESN/IMEI/MEID : 357116041772537
23:55:14 : Phone type Compare start
23:55:14 : *****CheckPCSyncPrograms Start*****
23:55:14 : PCSyncPrograms Not Found - OK and ready to upgrade
23:55:15 : ****************CheckAndDownload********************
23:55:15 : ******Extract Start C:\LG3D\Firmware\V21E_00.kdz*****
23:55:15 : Model Dll Dir(C:\ProgramData\LGMOBILEAX\Phone\)
23:55:15 : File Size = 361975894
23:55:44 : Extract kdz file Success.
23:55:49 : Extracted C:\ProgramData\LGMOBILEAX\Phone\\V21E.wdb\n
23:55:49 : WDB(or DZ) FullPath(C:\ProgramData\LGMOBILEAX\Phone\\V21E.wdb)
23:55:49 : Extracted C:\ProgramData\LGMOBILEAX\Phone\\LGP920.dll\n
23:55:49 : Model dll FullPath(C:\ProgramData\LGMOBILEAX\Phone\\LGP920.dll)
23:55:50 : NNNNN WDB FullPath(C:\ProgramData\LGMOBILEAX\Phone\V21E.wdb)
23:55:50 : NNNNN Model dll FullPath(C:\ProgramData\LGMOBILEAX\Phone\LGP920.dll)
23:55:50 : Extract End C:\Users\Shaz\Downloads\Android\LG3D\Firmware\V21E_00.cab
23:55:51 : ------------------Model.dll Information-------------------
23:55:51 : Filename : LGP920.dll
23:55:51 : Version : 1.0.0.3
23:55:51 : File size : 262144
23:55:51 : File date : 2011/06/27-21:28:08
23:55:51 : PC Created date: 2012/11/20-23:55:49
23:55:51 : ----------------------------------------------------------
23:55:51 : *****Check LGCM Programs Start*****
23:55:51 : LGCM Programs Not Found - OK and ready to upgrade
23:55:51 : *****WorkModelDLL Start*****
23:55:59 : strPhoneBinaryPath(C:\ProgramData\LGMOBILEAX\Phone\V21E.wdb)
23:55:59 : strModuleDir(C:\ProgramData\LGMOBILEAX\Phone\)
23:55:59 : strModelDLLPath(C:\ProgramData\LGMOBILEAX\Phone\LGP920.dll)
23:55:59 : _DetachDLL Call
23:55:59 : _DetachDLL Call End
23:55:59 : Call fn_StartUpgrade
23:55:59 : ********* 2Chip Model.dll input Parameter*************
23:55:59 : MODEL_EVENT : 32769
23:55:59 : PhoneBinaryPath : C:\ProgramData\LGMOBILEAX\Phone\V21E.wdb
23:55:59 : ModuleDir : C:\ProgramData\LGMOBILEAX\Phone\
23:55:59 : BootWaitTime : 49500
23:55:59 : UsbHighSpeed : FALSE
23:55:59 : PhoneMode : 2
23:55:59 : NewPhoneBinVersion : V21E_00
23:55:59 : ClearSI : FALSE
23:55:59 : AuthMark : 0
23:55:59 : ********* 2Chip Model.dll input Parameter End*************
23:56:04 : wParam : 2004, lParam = 7
23:56:04 : Step : TYPE_WPARAM_IFX_DN_POS
23:56:04 : wParam : 2007, lParam = 0
23:56:04 : Step : TYPE_WPARAM_READ_FILES
23:56:04 : wParam : 2004, lParam = 8
23:56:04 : Step : TYPE_WPARAM_IFX_DN_POS23:57:44 : wParam : 2010, lParam = 3013
23:56:13 : wParam : 2004, lParam = 9
23:56:13 : wParam : 2004, lParam = 10
23:56:14 : wParam : 2003, lParam = 97
23:56:14 : Step : TYPE_WPARAM_DOWNLOAD_FILENAME
23:56:14 : wParam : 2004, lParam = 15
23:56:14 : Step : TYPE_WPARAM_IFX_DN_POS
23:57:44 : CleanModelDll() : Free Model.dll
23:57:44 : _DetachDLL Call
23:57:44 : _DetachDLL Call End
23:57:44 : Page_Error ºÎºÐÀÔ´Ï´Ù
23:57:44 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù
23:57:44 : wParam : 2010, lParam = 3016
23:57:44 : CleanModelDll() : Free Model.dll
23:57:44 : _DetachDLL Call
23:57:44 : _DetachDLL Call End
23:57:44 : Page_Error ºÎºÐÀÔ´Ï´Ù
23:57:44 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù

[Method: 3]

For my next attempt, I tried these guides (without the modded USB cable):

[TUTORIAL] Flash BIN rom, Unbrick, Update - Optimus 3d (Service Flash software)

[GUIDE] Recovering from brick/bootloop

[GUIDE] [P920] [SU760] Resurrection Guide (Lets get those brick's fixed...)

and

http://xdaforums.com/showpost.php?p=33509495&postcount=110

After several hours and many attempts! it can boot boot both into Normal Download mode and omapboot Download Mode (Button with yellow arrows followed by Korean letters). No matter which download mode I try, the LG Flash Tool gives an error after trying to communicate with the IFX Modem:

I have tried contacting others who have had similar issues but not had any replies.

Questions:

Would the modified USB cable help with the LG Flashing tool?

Assuming this is a hardware issue and only LG can repair it, is there any way of returning to stock V21E rom without root via clockworkmod recovery and then replace cwm recovery so there's no sign of it having been rooted?

I would appreciate any pointers or advice!