Heey everybody,
I have a Sony Ericsson k750i with w800 firmware.
Everything works fine.
I want to unlock my phone, but I get an error in SIMLockPatchGen V.2.1:

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: D:\Downloads\SE\Firmware\W800 JerN\MAIN\W800_R1BC002_MAIN_EU_EMEA_RED49.bin
Analyzing firmware...
BABE header integrity check failed! "D:\Downloads\SE\Firmware\W800 JerN\MAIN\W800_R1BC002_MAIN_EU_EMEA_RED49.bin" firmware is probably corrupted!
FINISHED.

How do I solve this problem?