i have just tried that but then i get this log from simlock gen



2008-08-20 20:47:01
welcome to Remove SIM-Lock patch generator v2.1
supported firmwares: DB2000/DB2010/DB2012/DB2020 CID36, CID49, CID50, CID51, CID52

You can drag firmware files here...


2008-08-20 22:07:43
welcome to Remove SIM-Lock patch generator v2.1
supported firmwares: DB2000/DB2010/DB2012/DB2020 CID36, CID49, CID50, CID51, CID52

You can drag firmware files here...

Selected firmware: C:\Documents and Settings\Administrator\Desktop\new files\sony
phone stuff\gdfs_3553630158xxxx.bin
Analyzing firmware...
"C:\Documents and Settings\Administrator\Desktop\new files\sony phone stuff\gdfs_
35536301587669.bin" is not a valid firmware!
FINISHED.