Unhappy Problem in Updating GW620 2.2 Froyo to Gingerbread
Hello sir , I have a LG GW620 with following details:-
Android version : 2.2
Kernel Version :2.6.32.9
Build Number :Froyo.v20d
Software Version:GW620-V20D
I want to update my GW620 to Gingerbread but first and most problem is

that I am unable to boot my mobile in fastboot mode while a have tried

” Menu + Space / Down Vol Key + Space + Camera Key /Middle Button +

Camera Key ”etc but I am failed . Please suggest me with all possible

steps .GW620 comes with 1.5 and I upgraded it to 2.2 Froyo using KDZ

Updater .

Please Help Me.
I think that we have not a rom with fastboot .After that I was trying

cyanogenroms

downgrade/lggw620dwn900.rar, file

to downgrade our GW620 using KDZ Updater but it says

[R&D Test Tools Log File]

20:53:00 : Launching SW update
20:53:00 : Unpacking KDZ
20:53:01 : KDZ file extraced
20:53:02 : Files were extracted.
20:53:02 : LGMobileDL Load.
20:53:02 : Port = 36
20:53:02 : Connecting to phone
20:53:12 : Check Phone mode = 1
20:53:31 : Phone type check.......
20:53:31 : LGMobileDL.DLL Loading....
20:53:32 : _SetAuthMark Ok : wAuthMark(30573)
20:53:32 : _DetachDLL Call
20:53:32 : _DetachDLL Call End
20:53:32 : Param : Path = C:\ProgramData\LGMOBILEAX\Phone\GW620AT-00-

V10g-EUY-XX-DEC-30-2009+0.dz
20:53:32 : Param : moduleDir =
20:53:32 : Param : waitTime = 0
20:53:32 : Param : UsbHighSpeed = 1
20:53:32 : Param : PhoneMode = 1
20:53:32 : Param : BinVersion = V10G_00
20:53:32 : Param : AuthMark = 30573
20:53:32 : Call fn_StartUpgrade
20:53:41 : 3GQCT : wParam = 4, lParam = 0
20:53:41 : Step Complete : DLOAD Change
20:54:21 : 3GQCT : wParam = 3, lParam = 0
20:54:21 : Step Complete : C Drive Erase
20:54:21 : 3GQCT : wParam = 205, lParam = 0
20:54:21 : 3GQCT : wParam = 100, lParam = 4008
20:54:21 : Step : Upgrade Error error code = 4008
20:54:21 : ResetStartInfo() Call
20:54:21 : _DetachDLL Call
20:54:21 : _DetachDLL Call End
20:54:21 : FreeLibrary Call
20:54:21 : FreeLibrary Call End
20:54:21 : ResetStartInfo() Call End
20:54:22 : ===FINISHED===

and phone is restarting automatically on that stage.
I have also checked it with LG-Utils-kp500_ks360 provided in

cyanogenroms Tools section but the same error also occuring in 4%

of total task.
Please suggest me some option that by which ways we can upgrade my

GW620 to Gingerbread.

I will very graceful for your help.
Sorry for my bad english because its not my mother language