Hi all!
What is trouble?

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: E:\SE\se2lite\K610_RED49.mbn
Analyzing firmware...
BABE header integrity check failed! "E:\SE\se2lite\K610_RED49.mbn" firmware is probably corrupted!
FINISHED.

Main file from
http://se-zone.ru/flash/k610i/K610_R..._RED49.zip.htm