Ho rifatto tutta la procedura ma niente da fare e ho scoperto l'arcano: la V10D downgrade è per E612 mentre il mio è E610 (così era scritto nelle info del software del telefono). Comunque ho fatto hard reset da recovery poiché rimaneva fisso sul logo LG e ho provato a flashare la V10 L con telefono acceso in debug USB ecco il responso di KDZ:
[R&D Test Tools Log File]
19:37:21 : Launching SW update
19:37:21 : Unpacking KDZ
19:39:20 : KDZ file extraced
19:41:11 : Files were extracted.
19:41:11 : LGMobileDL Load.
19:41:11 : Port = -1
19:41:11 : Connecting to phone
19:41:20 : Check Phone mode = 1
19:41:38 : Phone type check.......
19:41:38 : LGMobileDL.DLL Loading....
19:41:39 : _SetAuthMark Ok : wAuthMark(1224)
19:41:39 : _DetachDLL Call
19:41:39 : _DetachDLL Call End
19:41:39 : Param : Path = C:\Documents and Settings\All Users\Dati applicazioni\LGMOBILEAX\Phone\V10L.wdb
19:41:39 : Param : moduleDir =
19:41:39 : Param : waitTime = 0
19:41:39 : Param : UsbHighSpeed = 1
19:41:39 : Param : PhoneMode = 1
19:41:39 : Param : BinVersion = V10L_00
19:41:39 : Param : AuthMark = 1224
19:41:39 : Call fn_StartUpgrade
19:41:49 : 3GQCT : wParam = 2004, lParam = 5
19:42:09 : 3GQCT : wParam = 2004, lParam = 6
19:50:33 : 3GQCT : wParam = 2004, lParam = 7
19:50:33 : 3GQCT : wParam = 2010, lParam = 3000
Poi ho provato a togliere la batteria e metterlo in download mode ed ecco il risultato:
[R&D Test Tools Log File]
19:53:45 : Launching SW update
19:53:45 : Unpacking KDZ
19:55:36 : KDZ file extraced
19:57:47 : Files were extracted.
19:57:47 : LGMobileDL Load.
19:57:47 : Port = -1
19:57:47 : Connecting to phone
19:57:57 : Check Phone mode = 2
19:58:14 : Phone type check.......
19:58:21 : _DetachDLL Call
19:58:21 : _DetachDLL Call End
19:58:21 : Param : Path = C:\Documents and Settings\All Users\Dati applicazioni\LGMOBILEAX\Phone\V10L.wdb
19:58:21 : Param : moduleDir =
19:58:21 : Param : waitTime = 0
19:58:21 : Param : UsbHighSpeed = 1
19:58:21 : Param : PhoneMode = 2
19:58:21 : Param : BinVersion = V10L_00
19:58:21 : Param : AuthMark = 0
19:58:21 : Call fn_StartUpgrade
20:06:43 : CDMA: wParam = 2004, lParam = 7
20:06:43 : Model Dll Msg Not Found(2004, 7)
20:06:43 : CDMA: wParam = 2010, lParam = 3000
20:06:43 : Model Dll Msg Not Found(2010, 3000)
A questo punto non so più cosa fare (ho reinstallato la V20 d root e cwm). Accetto ogni suggerimento che possa finalmente farmi fare questo sospirato downgrade. Di nuovo grazie