GT540 unlock problem ( ANSWERED )
 

I have problem with unlock GT540
I write to phone special unlock flash file, but still i have the same problem:

Phone type selected : GT540
IMEI : 355614-04-XXXXXX-X
Bluetooth Addr : 5C:17:D3:E8:3B:0B
Phone version : GT540-M76XX-V20a-OCT-05-2010-XX
Compilation info : Oct 5 201012:49:15Apr 14 201002:00:00GT540

Unlocking ...
Initialing NAND ... OK
Making security zone backup file ... OK
Decrypting security zone ...
Failed to decrypt security zone


If I try connect in Emergency-Mode:

Connecting ... OK
Connected in EMERGENCY MODE
----------------------------------------------------------
Unlocking ...
Switching phone to DL MODE, please wait ... OK
Loading main loader ...
Can't load loader.Please write to phone special unlock flash file and repeat operation

Finally i tried REPAIR SECURITY and now i heve SECURITY ERROR:/

Have you some solution for this problem?

GT540_GT540f_GT540GO_V20_FOR_UNLOCK download this file from support and flash it....you have v20 FW downgrade is not possible

I write to phone GT540_GT540f_GT540GO_V20_FOR_UNLOCK, but still i have the same problem

did you try original flasher and flash file from support?

I not try the original Flesher, used only vigis LGQ_1_71SC

Today download and flash:
GT540AT_V20b-XXX-XX-OCT-12-2010_INDON_GER_EN_ES_FR_IT_MALAY_NL_PT_VIET_TR_THA I_KOR_CN.crc
After uploading the phone restarted...
then I flash flie to unlock: GT540_GT540f_GT540GO_V20_FOR_UNLOCK.crc
and still the same:/

Phone type selected : GT540
IMEI : 355614-04-XXXXXX-X
Bluetooth Addr : 5C:17:D3:E8:3B:0B
Phone version : GT540-M76XX-V20a-OCT-05-2010-XX
Compilation info : Oct 5 201012:49:15Apr 14 201002:00:00GT540

Unlocking ...
Initialing NAND ... OK
Making security zone backup file ... OK
Decrypting security zone ...
Failed to decrypt security zone


If I try connect in Download-Mode:

Connecting ... OK
Connected in EMERGENCY MODE
----------------------------------------------------------
Unlocking ...
Switching phone to DL MODE, please wait ... OK
Loading main loader ...
Can't load loader.Please write to phone special unlock flash file and repeat operation


And another thing ... how to put the phone in emergency mode??
Because the display is a download mode, vigis sees as the emergency mode...This is normal?

- for GT540 - press and keep pressed "Volume down" and connect USB cable to phone,
on LCD must appear "Emergency mode"


try flashing first with original flasher to normalize phone then unlock in normal mode ..vygis will auto swith mode to download during unlock process

i just got one yesterday gonna try it later on today if i get a chance...

For Emergency Mode sequance see this post :

http://forum.gsmhosting.com/vbb/7079389-post1.html

- For flashing use LGQ_1_67SC or higher software version.

- Phones with V20 firmware can't be downgraded to V10a version.If you will write to phone V20 firmware,later
you won't can write to phone flash with V10 firmware.

Regards,Douhal

What do you mean by original flasher?


is this from LG support or what? can you help me where to find? or can you pls upload it here?
thanks

yes everything avilable on support area..........