How to Release network lock on k750i

Hi,
I have SEk750i CID49, it actually had R1C021_china firmware and i tried to convert it to w800 with a tutorial. Now the problem actually is the w800 firmware is loaded but whatever sim i insert it says "Insert Correct Sim Card". I tried again with XS++ and saw the phone was Network Locked. I have now bought SETool2 and can somebody tell me how to unlock this phone

Thanks in advance
M.Sathish kumar

Use "Remove SIM-lock patch generator" and the MAIN firmware to create your own remove sim-lock patch, then use SeTool2 Lite to apply the patch. Read here: http://www.topsony.com/forum/showthread.php?t=6329, about "How to apply the generated patches to DB2010 CID49 phones"

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