try flashing use mirage for remove user code lock
here guide for flashing
http://rapidshare.com/files/22818959...hing_Guide.pdf
if phone wm6.1 just flashing PDA use i780_WM6.1_EFNV3.0.Bin
http://rapidshare.com/files/13245775...NV3.0.rar.html
and your lock can remove